Kernel PANIC with 2.6.27-rc6 - Kernel

This is a discussion on Kernel PANIC with 2.6.27-rc6 - Kernel ; observed a panic on 2.6.27-rc6 caused by enabling "CONFIG_KGDB_TESTS_ON_BOOT" option panic logged using serial console and .config are attached. Linux version 2.6.27-rc6 (root@luser-desktop) (gcc version 4.2.3 (Ubuntu 4.2.3-8 BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 000000000008f000 (usable) BIOS-e820: 000000000008f000 - ...

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Thread: Kernel PANIC with 2.6.27-rc6

  1. Kernel PANIC with 2.6.27-rc6

    observed a panic on 2.6.27-rc6 caused by enabling
    "CONFIG_KGDB_TESTS_ON_BOOT" option

    panic logged using serial console and .config are attached.

    Linux version 2.6.27-rc6 (root@luser-desktop) (gcc version 4.2.3 (Ubuntu 4.2.3-8
    BIOS-provided physical RAM map:
    BIOS-e820: 0000000000000000 - 000000000008f000 (usable)
    BIOS-e820: 000000000008f000 - 00000000000a0000 (reserved)
    BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved)
    BIOS-e820: 0000000000100000 - 000000003e56f000 (usable)
    BIOS-e820: 000000003e56f000 - 000000003e57c000 (reserved)
    BIOS-e820: 000000003e57c000 - 000000003e624000 (usable)
    BIOS-e820: 000000003e624000 - 000000003e681000 (ACPI NVS)
    BIOS-e820: 000000003e681000 - 000000003e685000 (ACPI data)
    BIOS-e820: 000000003e685000 - 000000003e6dc000 (ACPI NVS)
    BIOS-e820: 000000003e6dc000 - 000000003e6ed000 (usable)
    BIOS-e820: 000000003e6ed000 - 000000003e6ef000 (ACPI NVS)
    BIOS-e820: 000000003e6ef000 - 000000003e6f0000 (ACPI data)
    BIOS-e820: 000000003e6f0000 - 000000003e6f1000 (usable)
    BIOS-e820: 000000003e6f1000 - 000000003e6ff000 (ACPI data)
    BIOS-e820: 000000003e6ff000 - 000000003e700000 (usable)
    BIOS-e820: 000000003e700000 - 000000003f000000 (reserved)
    BIOS-e820: 00000000ffe00000 - 0000000100000000 (reserved)
    last_pfn = 0x3e700 max_arch_pfn = 0x1000000
    NX (Execute Disable) protection: active
    RAMDISK: 37cfd000 - 37fef2f8
    DMI 2.4 present.
    ACPI: RSDP 000FE020, 0014 (r0 HCLINF)
    ACPI: RSDT 3E6FD038, 0058 (r1 HCLINF DESKTOPS 1748 1000013)
    ACPI: FACP 3E6FC000, 0074 (r1 HCLINF DESKTOPS 1748 MSFT 1000013)
    ACPI: DSDT 3E6F7000, 42C8 (r1 HCLINF DESKTOPS 1748 MSFT 1000013)
    ACPI: FACS 3E685000, 0040
    ACPI: APIC 3E6F6000, 0078 (r1 HCLINF DESKTOPS 1748 MSFT 1000013)
    ACPI: WDDT 3E6F5000, 0040 (r1 HCLINF DESKTOPS 1748 MSFT 1000013)
    ACPI: MCFG 3E6F4000, 003C (r1 HCLINF DESKTOPS 1748 MSFT 1000013)
    ACPI: ASF! 3E6F3000, 00A6 (r32 HCLINF DESKTOPS 1748 MSFT 1000013)
    ACPI: HPET 3E6F2000, 0038 (r1 HCLINF DESKTOPS 1748 MSFT 1000013)
    ACPI: SLIC 3E6F1000, 0176 (r1 HCLINF DESKTOPS 1748 MSFT 1000013)
    ACPI: SSDT 3E6EF000, 020C (r1 HCLINF CpuPm 1748 MSFT 1000013)
    ACPI: SSDT 3E684000, 0175 (r1 HCLINF Cpu0Ist 1748 MSFT 1000013)
    ACPI: SSDT 3E683000, 0175 (r1 HCLINF Cpu1Ist 1748 MSFT 1000013)
    ACPI: SSDT 3E682000, 0175 (r1 HCLINF Cpu2Ist 1748 MSFT 1000013)
    ACPI: SSDT 3E681000, 0175 (r1 HCLINF Cpu3Ist 1748 MSFT 1000013)
    ACPI: TCPA 3E624000, 0946 (r1 INTEL TIANO 2 MSFT 1000013)
    103MB HIGHMEM available.
    896MB LOWMEM available.
    mapped low ram: 0 - 38000000
    low ram: 00000000 - 38000000
    bootmap 00009000 - 00010000
    (9 early reservations) ==> bootmem [0000000000 - 0038000000]
    #0 [0000000000 - 0000001000] BIOS data page ==> [0000000000 - 0000001000]
    #1 [0000001000 - 0000002000] EX TRAMPOLINE ==> [0000001000 - 0000002000]
    #2 [0000006000 - 0000007000] TRAMPOLINE ==> [0000006000 - 0000007000]
    #3 [0000100000 - 0000736140] TEXT DATA BSS ==> [0000100000 - 0000736140]
    #4 [0037cfd000 - 0037fef2f8] RAMDISK ==> [0037cfd000 - 0037fef2f8]
    #5 [0000737000 - 000073f000] INIT_PG_TABLE ==> [0000737000 - 000073f000]
    #6 [000009fc00 - 0000100000] BIOS reserved ==> [000009fc00 - 0000100000]
    #7 [0000007000 - 0000009000] PGTABLE ==> [0000007000 - 0000009000]
    #8 [0000009000 - 0000010000] BOOTMAP ==> [0000009000 - 0000010000]
    found SMP MP-table at [c00fe200] 000fe200
    Zone PFN ranges:
    DMA 0x00000000 -> 0x00001000
    Normal 0x00001000 -> 0x00038000
    HighMem 0x00038000 -> 0x0003e700
    Movable zone start PFN for each node
    early_node_map[6] active PFN ranges
    0: 0x00000000 -> 0x0000008f
    0: 0x00000100 -> 0x0003e56f
    0: 0x0003e57c -> 0x0003e624
    0: 0x0003e6dc -> 0x0003e6ed
    0: 0x0003e6f0 -> 0x0003e6f1
    0: 0x0003e6ff -> 0x0003e700
    ACPI: PM-Timer IO Port: 0x408
    ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
    ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled)
    ACPI: LAPIC (acpi_id[0x03] lapic_id[0x82] disabled)
    ACPI: LAPIC (acpi_id[0x04] lapic_id[0x83] disabled)
    ACPI: LAPIC_NMI (acpi_id[0x01] dfl dfl lint[0x1])
    ACPI: LAPIC_NMI (acpi_id[0x02] dfl dfl lint[0x1])
    ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
    IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-23
    ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
    ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
    Enabling APIC mode: Flat. Using 1 I/O APICs
    Using ACPI (MADT) for SMP configuration information
    SMP: Allowing 4 CPUs, 2 hotplug CPUs
    Allocating PCI resources starting at 40000000 (gap: 3f000000:c0e00000)
    PERCPU: Allocating 36380 bytes of per cpu data
    Built 1 zonelists in Zone order, mobility grouping on. Total pages: 253419
    Kernel command line: root=/dev/sda1 ro quite splash console=tty0 console=ttyS0,
    Enabling fast FPU save and restore... done.
    Enabling unmasked SIMD FPU exception support... done.
    Initializing CPU#0
    PID hash table entries: 4096 (order: 12, 16384 bytes)
    TSC: PIT calibration confirmed by PMTIMER.
    TSC: using PIT calibration value
    Detected 2397.578 MHz processor.
    Console: colour VGA+ 80x25
    console [tty0] enabled
    console [ttyS0] enabled
    Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
    Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
    Memory: 1002924k/1022976k available (3929k kernel code, 18404k reserved, 1757k )
    virtual kernel memory layout:
    fixmap : 0xfff51000 - 0xfffff000 ( 696 kB)
    pkmap : 0xffa00000 - 0xffc00000 (2048 kB)
    vmalloc : 0xf8800000 - 0xff9fe000 ( 113 MB)
    lowmem : 0xc0000000 - 0xf8000000 ( 896 MB)
    .init : 0xc0697000 - 0xc06e5000 ( 312 kB)
    .data : 0xc04d67a2 - 0xc068de0c (1757 kB)
    .text : 0xc0100000 - 0xc04d67a2 (3929 kB)
    Checking if this processor honours the WP bit even in supervisor mode...Ok.
    Calibrating delay loop (skipped), value calculated using timer frequency.. 4795)
    Mount-cache hash table entries: 512
    CPU: L1 I cache: 32K, L1 D cache: 32K
    CPU: L2 cache: 4096K
    CPU: Physical Processor ID: 0
    CPU: Processor Core ID: 0
    using mwait in idle threads.
    Checking 'hlt' instruction... OK.
    ACPI: Core revision 20080609
    ENABLING IO-APIC IRQs
    ...TIMER: vector=0x31 apic1=0 pin1=2 apic2=-1 pin2=-1
    CPU0: Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz stepping 06
    Booting processor 1/1 ip 6000
    Initializing CPU#1
    Calibrating delay using timer specific routine.. 4795.35 BogoMIPS (lpj=23976790)
    CPU: L1 I cache: 32K, L1 D cache: 32K
    CPU: L2 cache: 4096K
    CPU: Physical Processor ID: 0
    CPU: Processor Core ID: 1
    CPU1: Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz stepping 06
    checking TSC synchronization [CPU#0 -> CPU#1]: passed.
    Brought up 2 CPUs
    Total of 2 processors activated (9590.51 BogoMIPS).
    net_namespace: 596 bytes
    NET: Registered protocol family 16
    No dock devices found.
    ACPI: bus type pci registered
    PCI: MCFG configuration 0: base f0000000 segment 0 buses 0 - 127
    PCI: Not using MMCONFIG.
    PCI: Using configuration type 1 for base access
    ACPI: Interpreter enabled
    ACPI: (supports S0 S3 S5)
    ACPI: Using IOAPIC for interrupt routing
    PCI: MCFG configuration 0: base f0000000 segment 0 buses 0 - 127
    PCI: MCFG area at f0000000 reserved in ACPI motherboard resources
    PCI: Using MMCONFIG for extended config space
    ACPI: PCI Root Bridge [PCI0] (0000:00)
    pci 0000:00:03.0: PME# supported from D0 D3hot D3cold
    pci 0000:00:03.0: PME# disabled
    pci 0000:00:19.0: PME# supported from D0 D3hot D3cold
    pci 0000:00:19.0: PME# disabled
    pci 0000:00:1a.7: PME# supported from D0 D3hot D3cold
    pci 0000:00:1a.7: PME# disabled
    pci 0000:00:1b.0: PME# supported from D0 D3hot D3cold
    pci 0000:00:1b.0: PME# disabled
    pci 0000:00:1c.0: PME# supported from D0 D3hot D3cold
    pci 0000:00:1c.0: PME# disabled
    pci 0000:00:1c.1: PME# supported from D0 D3hot D3cold
    pci 0000:00:1c.1: PME# disabled
    pci 0000:00:1c.2: PME# supported from D0 D3hot D3cold
    pci 0000:00:1c.2: PME# disabled
    pci 0000:00:1c.3: PME# supported from D0 D3hot D3cold
    pci 0000:00:1c.3: PME# disabled
    pci 0000:00:1c.4: PME# supported from D0 D3hot D3cold
    pci 0000:00:1c.4: PME# disabled
    pci 0000:00:1d.7: PME# supported from D0 D3hot D3cold
    pci 0000:00:1d.7: PME# disabled
    pci 0000:00:1f.0: quirk: region 0400-047f claimed by ICH6 ACPI/GPIO/TCO
    pci 0000:00:1f.0: quirk: region 0500-053f claimed by ICH6 GPIO
    pci 0000:00:1f.2: PME# supported from D3hot
    pci 0000:00:1f.2: PME# disabled
    pci 0000:00:1f.5: PME# supported from D3hot
    pci 0000:00:1f.5: PME# disabled
    pci 0000:02:00.0: PME# supported from D0 D1 D3hot
    pci 0000:02:00.0: PME# disabled
    PCI: bridge 0000:00:1c.1 io port: [1000, 1fff]
    PCI: bridge 0000:00:1c.1 32bit mmio: [50000000, 500fffff]
    pci 0000:00:1e.0: transparent bridge
    ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 7 9 10 *11 12)
    ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 7 9 *10 11 12)
    ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 7 9 10 *11 12)
    ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 7 9 10 *11 12)
    ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 7 *9 10 11 12)
    ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 7 9 *10 11 12)
    ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 7 *9 10 11 12)
    ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 7 9 10 *11 12)
    Linux Plug and Play Support v0.97 (c) Adam Belay
    pnp: PnP ACPI init
    ACPI: bus type pnp registered
    pnp: PnP ACPI: found 14 devices
    ACPI: ACPI bus type pnp unregistered
    SCSI subsystem initialized
    usbcore: registered new interface driver usbfs
    usbcore: registered new interface driver hub
    usbcore: registered new device driver usb
    PCI: Using ACPI for IRQ routing
    ACPI: RTC can wake from S4
    system 00:01: iomem range 0xf0000000-0xf7ffffff has been reserved
    system 00:01: iomem range 0xfed13000-0xfed13fff has been reserved
    system 00:01: iomem range 0xfed14000-0xfed17fff has been reserved
    system 00:01: iomem range 0xfed18000-0xfed18fff has been reserved
    system 00:01: iomem range 0xfed19000-0xfed19fff has been reserved
    system 00:01: iomem range 0xfed1c000-0xfed1ffff has been reserved
    system 00:01: iomem range 0xfed20000-0xfed3ffff has been reserved
    system 00:01: iomem range 0xfed45000-0xfed99fff has been reserved
    system 00:01: iomem range 0xc0000-0xdffff could not be reserved
    system 00:01: iomem range 0xe0000-0xfffff could not be reserved
    system 00:06: ioport range 0x500-0x53f has been reserved
    system 00:06: ioport range 0x400-0x47f has been reserved
    system 00:06: ioport range 0x680-0x6ff has been reserved
    system 00:07: iomem range 0xfed40000-0xfed44fff has been reserved
    pci 0000:00:1c.0: PCI bridge, secondary bus 0000:01
    pci 0000:00:1c.0: IO window: disabled
    pci 0000:00:1c.0: MEM window: disabled
    pci 0000:00:1c.0: PREFETCH window: disabled
    pci 0000:00:1c.1: PCI bridge, secondary bus 0000:02
    pci 0000:00:1c.1: IO window: 0x1000-0x1fff
    pci 0000:00:1c.1: MEM window: 0x50000000-0x500fffff
    pci 0000:00:1c.1: PREFETCH window: disabled
    pci 0000:00:1c.2: PCI bridge, secondary bus 0000:03
    pci 0000:00:1c.2: IO window: disabled
    pci 0000:00:1c.2: MEM window: disabled
    pci 0000:00:1c.2: PREFETCH window: disabled
    pci 0000:00:1c.3: PCI bridge, secondary bus 0000:04
    pci 0000:00:1c.3: IO window: disabled
    pci 0000:00:1c.3: MEM window: disabled
    pci 0000:00:1c.3: PREFETCH window: disabled
    pci 0000:00:1c.4: PCI bridge, secondary bus 0000:05
    pci 0000:00:1c.4: IO window: disabled
    pci 0000:00:1c.4: MEM window: disabled
    pci 0000:00:1c.4: PREFETCH window: disabled
    pci 0000:00:1e.0: PCI bridge, secondary bus 0000:06
    pci 0000:00:1e.0: IO window: disabled
    pci 0000:00:1e.0: MEM window: disabled
    pci 0000:00:1e.0: PREFETCH window: disabled
    pci 0000:00:1c.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
    pci 0000:00:1c.1: PCI INT B -> GSI 16 (level, low) -> IRQ 16
    pci 0000:00:1c.2: PCI INT C -> GSI 18 (level, low) -> IRQ 18
    pci 0000:00:1c.3: PCI INT D -> GSI 19 (level, low) -> IRQ 19
    pci 0000:00:1c.4: PCI INT A -> GSI 17 (level, low) -> IRQ 17
    bus: 00 index 0 io port: [0, ffff]
    bus: 00 index 1 mmio: [0, ffffffffffffffff]
    bus: 01 index 0 mmio: [0, 0]
    bus: 01 index 1 mmio: [0, 0]
    bus: 01 index 2 mmio: [0, 0]
    bus: 01 index 3 mmio: [0, 0]
    bus: 02 index 0 io port: [1000, 1fff]
    bus: 02 index 1 mmio: [50000000, 500fffff]
    bus: 02 index 2 mmio: [0, 0]
    bus: 02 index 3 mmio: [0, 0]
    bus: 03 index 0 mmio: [0, 0]
    bus: 03 index 1 mmio: [0, 0]
    bus: 03 index 2 mmio: [0, 0]
    bus: 03 index 3 mmio: [0, 0]
    bus: 04 index 0 mmio: [0, 0]
    bus: 04 index 1 mmio: [0, 0]
    bus: 04 index 2 mmio: [0, 0]
    bus: 04 index 3 mmio: [0, 0]
    bus: 05 index 0 mmio: [0, 0]
    bus: 05 index 1 mmio: [0, 0]
    bus: 05 index 2 mmio: [0, 0]
    bus: 05 index 3 mmio: [0, 0]
    bus: 06 index 0 mmio: [0, 0]
    bus: 06 index 1 mmio: [0, 0]
    bus: 06 index 2 mmio: [0, 0]
    bus: 06 index 3 io port: [0, ffff]
    bus: 06 index 4 mmio: [0, ffffffffffffffff]
    NET: Registered protocol family 2
    IP route cache hash table entries: 32768 (order: 5, 131072 bytes)
    TCP established hash table entries: 131072 (order: 8, 1048576 bytes)
    TCP bind hash table entries: 65536 (order: 7, 524288 bytes)
    TCP: Hash tables configured (established 131072 bind 65536)
    TCP reno registered
    NET: Registered protocol family 1
    checking if image is initramfs... it is
    Freeing initrd memory: 3016k freed
    IA-32 Microcode Update Driver: v1.14a
    highmem bounce pool size: 64 pages
    fuse init (API version 7.9)
    msgmni has been set to 1761
    io scheduler noop registered
    io scheduler anticipatory registered (default)
    io scheduler deadline registered
    io scheduler cfq registered
    pcieport-driver 0000:00:1c.0: found MSI capability
    pcieport-driver 0000:00:1c.1: found MSI capability
    pcieport-driver 0000:00:1c.2: found MSI capability
    pcieport-driver 0000:00:1c.3: found MSI capability
    pcieport-driver 0000:00:1c.4: found MSI capability
    Serial: 8250/16550 driver4 ports, IRQ sharing disabled
    serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
    00:0b: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
    floppy0: no floppy controllers found
    brd: module loaded
    loop: module loaded
    HP CISS Driver (v 3.6.20)
    kgdb: Registered I/O driver kgdbts.
    kgdbts:RUN plant and detach test
    kgdbts:RUN sw breakpoint test
    kgdbts:RUN bad memory access test
    kgdbts:RUN singlestep test 1000 iterations
    kgdbts:RUN singlestep [0/1000]
    kgdbts:RUN singlestep [100/1000]
    kgdbts: BP mismatch c0109c02 expected c02ad250
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:302 check_and_rewind_pc+0xb2/0xe0()
    Modules linked in:
    Pid: 0, comm: swapper Not tainted 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? __rmqueue_smallest+0xb7/0x130
    [] ? __copy_to_user_ll+0x57/0x60
    [] ? probe_kernel_write+0x20/0x40
    [] ? kgdbts_break_test+0x0/0x30
    [] ? printk+0x1b/0x20
    [] ? kgdbts_break_test+0x0/0x30
    [] check_and_rewind_pc+0xb2/0xe0
    [] ? mwait_idle+0x32/0x40
    [] ? kgdbts_break_test+0x0/0x30
    [] validate_simple_test+0x21/0xb0
    [] run_simple_test+0x107/0x260
    [] ? probe_kernel_read+0x20/0x40
    [] kgdbts_put_char+0x14/0x20
    [] put_packet+0x86/0xe0
    [] kgdb_handle_exception+0x2f0/0xd90
    [] kgdb_notify+0x58/0x180
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] die_nmi+0x3a/0x100
    [] nmi_watchdog_tick+0x187/0x190
    [] do_nmi+0x87/0x2a0
    [] nmi_stack_correct+0x26/0x2b
    [] ? msr_seek+0xb/0x80
    [] ? mwait_idle+0x32/0x40
    [] cpu_idle+0x55/0xf0
    [] rest_init+0x4e/0x60
    [] start_kernel+0x23f/0x2c0
    [] ? unknown_bootoption+0x0/0x210
    [] __init_begin+0x77/0xb0
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR PUT: end of test buffer on 'singlestep_breakpoint_test' line 3 ex0
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:721 run_simple_test+0x153/0x260()
    Modules linked in:
    Pid: 0, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? kgdbts_break_test+0x0/0x30
    [] ? printk+0x1b/0x20
    [] ? kgdbts_break_test+0x0/0x30
    [] ? check_and_rewind_pc+0xb2/0xe0
    [] ? printk+0x1b/0x20
    [] run_simple_test+0x153/0x260
    [] kgdbts_put_char+0x14/0x20
    [] put_packet+0x86/0xe0
    [] kgdb_handle_exception+0x2f0/0xd90
    [] kgdb_notify+0x58/0x180
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] die_nmi+0x3a/0x100
    [] nmi_watchdog_tick+0x187/0x190
    [] do_nmi+0x87/0x2a0
    [] nmi_stack_correct+0x26/0x2b
    [] ? msr_seek+0xb/0x80
    [] ? mwait_idle+0x32/0x40
    [] cpu_idle+0x55/0xf0
    [] rest_init+0x4e/0x60
    [] start_kernel+0x23f/0x2c0
    [] ? unknown_bootoption+0x0/0x210
    [] __init_begin+0x77/0xb0
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR PUT: end of test buffer on 'singlestep_breakpoint_test' line 0 ex7
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:721 run_simple_test+0x153/0x260()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? notifier_call_chain+0x2d/0x60
    [] ? atomic_notifier_call_chain+0x1a/0x20
    [] ? notify_die+0x2d/0x30
    [] ? printk+0x1b/0x20
    [] run_simple_test+0x153/0x260
    [] kgdbts_put_char+0x14/0x20
    [] put_packet+0x86/0xe0
    [] kgdb_handle_exception+0xd29/0xd90
    [] kgdb_notify+0x58/0x180
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] do_int3+0x34/0x70
    [] int3+0x27/0x2c
    [] ? msr_seek+0x68/0x80
    [] ? kgdb_breakpoint+0x13/0x30
    [] configure_kgdbts+0x1fe/0x4d0
    [] init_kgdbts+0x13/0x20
    [] do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: BP mismatch c0109c03 expected c02ad250
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:302 check_and_rewind_pc+0xb2/0xe0()
    Modules linked in:
    Pid: 0, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? notifier_call_chain+0x2d/0x60
    [] ? notifier_call_chain+0x2d/0x60
    [] ? __copy_to_user_ll+0x57/0x60
    [] ? probe_kernel_write+0x20/0x40
    [] ? kgdbts_break_test+0x0/0x30
    [] ? printk+0x1b/0x20
    [] ? kgdbts_break_test+0x0/0x30
    [] check_and_rewind_pc+0xb2/0xe0
    [] ? mwait_idle+0x33/0x40
    [] ? kgdbts_break_test+0x0/0x30
    [] validate_simple_test+0x21/0xb0
    [] run_simple_test+0x107/0x260
    [] ? probe_kernel_read+0x20/0x40
    [] kgdbts_put_char+0x14/0x20
    [] put_packet+0x86/0xe0
    [] kgdb_handle_exception+0x2f0/0xd90
    [] ? run_rebalance_domains+0x125/0x3f0
    [] kgdb_notify+0x58/0x180
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] do_debug+0x55/0xe0
    [] debug_stack_correct+0x27/0x2c
    [] ? mwait_idle+0x33/0x40
    [] ? cpu_idle+0x55/0xf0
    [] rest_init+0x4e/0x60
    [] start_kernel+0x23f/0x2c0
    [] ? unknown_bootoption+0x0/0x210
    [] __init_begin+0x77/0xb0
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR PUT: end of test buffer on 'singlestep_breakpoint_test' line 3 ex0
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:721 run_simple_test+0x153/0x260()
    Modules linked in:
    Pid: 0, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? notifier_call_chain+0x2d/0x60
    [] ? kgdbts_break_test+0x0/0x30
    [] ? printk+0x1b/0x20
    [] ? kgdbts_break_test+0x0/0x30
    [] ? check_and_rewind_pc+0xb2/0xe0
    [] ? printk+0x1b/0x20
    [] run_simple_test+0x153/0x260
    [] kgdbts_put_char+0x14/0x20
    [] put_packet+0x86/0xe0
    [] kgdb_handle_exception+0x2f0/0xd90
    [] ? run_rebalance_domains+0x125/0x3f0
    [] kgdb_notify+0x58/0x180
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] do_debug+0x55/0xe0
    [] debug_stack_correct+0x27/0x2c
    [] ? mwait_idle+0x33/0x40
    [] ? cpu_idle+0x55/0xf0
    [] rest_init+0x4e/0x60
    [] start_kernel+0x23f/0x2c0
    [] ? unknown_bootoption+0x0/0x210
    [] __init_begin+0x77/0xb0
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts:RUN singlestep [200/1000]
    KGDB: Waiting for remote debugger
    kgdbts: BP mismatch c014ac53 expected c02ad250
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:302 check_and_rewind_pc+0xb2/0xe0()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? notifier_call_chain+0x2d/0x60
    [] ? notifier_call_chain+0x2d/0x60
    [] ? __copy_to_user_ll+0x57/0x60
    [] ? probe_kernel_write+0x20/0x40
    [] ? kgdbts_break_test+0x0/0x30
    [] ? printk+0x1b/0x20
    [] ? kgdbts_break_test+0x0/0x30
    [] check_and_rewind_pc+0xb2/0xe0
    [] ? kgdb_breakpoint+0x13/0x30
    [] ? kgdbts_break_test+0x0/0x30
    [] validate_simple_test+0x21/0xb0
    [] run_simple_test+0x107/0x260
    [] ? probe_kernel_read+0x20/0x40
    [] kgdbts_put_char+0x14/0x20
    [] put_packet+0x86/0xe0
    [] kgdb_handle_exception+0x2f0/0xd90
    [] kgdb_notify+0x58/0x180
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] do_int3+0x34/0x70
    [] int3+0x27/0x2c
    [] ? msr_seek+0x68/0x80
    [] ? kgdb_breakpoint+0x13/0x30
    [] configure_kgdbts+0x1fe/0x4d0
    [] init_kgdbts+0x13/0x20
    [] do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR PUT: end of test buffer on 'singlestep_breakpoint_test' line 3 ex0
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:721 run_simple_test+0x153/0x260()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? notifier_call_chain+0x2d/0x60
    [] ? kgdbts_break_test+0x0/0x30
    [] ? printk+0x1b/0x20
    [] ? kgdbts_break_test+0x0/0x30
    [] ? check_and_rewind_pc+0xb2/0xe0
    [] ? printk+0x1b/0x20
    [] run_simple_test+0x153/0x260
    [] kgdbts_put_char+0x14/0x20
    [] put_packet+0x86/0xe0
    [] kgdb_handle_exception+0x2f0/0xd90
    [] kgdb_notify+0x58/0x180
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] do_int3+0x34/0x70
    [] int3+0x27/0x2c
    [] ? msr_seek+0x68/0x80
    [] ? kgdb_breakpoint+0x13/0x30
    [] configure_kgdbts+0x1fe/0x4d0
    [] init_kgdbts+0x13/0x20
    [] do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts:RUN singlestep [300/1000]
    kgdbts: BP mismatch c0109c02 expected c02ad250
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:302 check_and_rewind_pc+0xb2/0xe0()
    Modules linked in:
    Pid: 0, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? __copy_to_user_ll+0x57/0x60
    [] ? probe_kernel_write+0x20/0x40
    [] ? kgdbts_break_test+0x0/0x30
    [] ? printk+0x1b/0x20
    [] ? kgdbts_break_test+0x0/0x30
    [] check_and_rewind_pc+0xb2/0xe0
    [] ? mwait_idle+0x32/0x40
    [] ? kgdbts_break_test+0x0/0x30
    [] validate_simple_test+0x21/0xb0
    [] run_simple_test+0x107/0x260
    [] ? probe_kernel_read+0x20/0x40
    [] kgdbts_put_char+0x14/0x20
    [] put_packet+0x86/0xe0
    [] kgdb_handle_exception+0x2f0/0xd90
    [] kgdb_notify+0x58/0x180
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] die_nmi+0x3a/0x100
    [] nmi_watchdog_tick+0x187/0x190
    [] do_nmi+0x87/0x2a0
    [] nmi_stack_correct+0x26/0x2b
    [] ? mwait_idle+0x32/0x40
    [] cpu_idle+0x55/0xf0
    [] rest_init+0x4e/0x60
    [] start_kernel+0x23f/0x2c0
    [] ? unknown_bootoption+0x0/0x210
    [] __init_begin+0x77/0xb0
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR PUT: end of test buffer on 'singlestep_breakpoint_test' line 10 e0
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:721 run_simple_test+0x153/0x260()
    Modules linked in:
    Pid: 0, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? kgdbts_break_test+0x0/0x30
    [] ? printk+0x1b/0x20
    [] ? kgdbts_break_test+0x0/0x30
    [] ? check_and_rewind_pc+0xb2/0xe0
    [] ? printk+0x1b/0x20
    [] run_simple_test+0x153/0x260
    [] kgdbts_put_char+0x14/0x20
    [] put_packet+0x86/0xe0
    [] kgdb_handle_exception+0x2f0/0xd90
    [] kgdb_notify+0x58/0x180
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] die_nmi+0x3a/0x100
    [] nmi_watchdog_tick+0x187/0x190
    [] do_nmi+0x87/0x2a0
    [] nmi_stack_correct+0x26/0x2b
    [] ? mwait_idle+0x32/0x40
    [] cpu_idle+0x55/0xf0
    [] rest_init+0x4e/0x60
    [] start_kernel+0x23f/0x2c0
    [] ? unknown_bootoption+0x0/0x210
    [] __init_begin+0x77/0xb0
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    KGDB: Waiting for remote debugger
    kgdbts: ERROR: beyond end of test on 'singlestep_breakpoint_test' line 13
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:696 run_simple_test+0xb3/0x260()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? fill_get_buf+0xbf/0xf0
    [] ? touch_nmi_watchdog+0x12/0x60
    [] ? fill_get_buf+0xbf/0xf0
    [] ? printk+0x1b/0x20
    [] run_simple_test+0xb3/0x260
    [] kgdbts_put_char+0x14/0x20
    [] kgdb_handle_exception+0x303/0xd90
    [] kgdb_notify+0x58/0x180
    [] ? __atomic_notifier_call_chain+0x1c/0x30
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] do_int3+0x34/0x70
    [] int3+0x27/0x2c
    [] ? msr_seek+0xb/0x80
    [] ? kgdbts_break_test+0x1/0x30
    [] ? configure_kgdbts+0x208/0x4d0
    [] init_kgdbts+0x13/0x20
    [] do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR: beyond end of test on 'singlestep_breakpoint_test' line 13
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:696 run_simple_test+0xb3/0x260()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? fill_get_buf+0xbf/0xf0
    [] ? printk+0x1b/0x20
    [] run_simple_test+0xb3/0x260
    [] kgdbts_put_char+0x14/0x20
    [] put_packet+0x22/0xe0
    [] kgdb_handle_exception+0x2f0/0xd90
    [] kgdb_notify+0x58/0x180
    [] ? __atomic_notifier_call_chain+0x1c/0x30
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] do_int3+0x34/0x70
    [] int3+0x27/0x2c
    [] ? msr_seek+0xb/0x80
    [] ? kgdbts_break_test+0x1/0x30
    [] ? configure_kgdbts+0x208/0x4d0
    [] init_kgdbts+0x13/0x20
    [] do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR: beyond end of test on 'singlestep_breakpoint_test' line 13
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:696 run_simple_test+0xb3/0x260()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? fill_get_buf+0xbf/0xf0
    [] ? printk+0x1b/0x20
    [] run_simple_test+0xb3/0x260
    [] kgdbts_put_char+0x14/0x20
    [] put_packet+0x66/0xe0
    [] kgdb_handle_exception+0x2f0/0xd90
    [] kgdb_notify+0x58/0x180
    [] ? __atomic_notifier_call_chain+0x1c/0x30
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] do_int3+0x34/0x70
    [] int3+0x27/0x2c
    [] ? msr_seek+0xb/0x80
    [] ? kgdbts_break_test+0x1/0x30
    [] ? configure_kgdbts+0x208/0x4d0
    [] init_kgdbts+0x13/0x20
    [] do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR: beyond end of test on 'singlestep_breakpoint_test' line 13
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:696 run_simple_test+0xb3/0x260()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? fill_get_buf+0xbf/0xf0
    [] ? printk+0x1b/0x20
    [] run_simple_test+0xb3/0x260
    [] kgdbts_put_char+0x14/0x20
    [] put_packet+0x76/0xe0
    [] kgdb_handle_exception+0x2f0/0xd90
    [] kgdb_notify+0x58/0x180
    [] ? __atomic_notifier_call_chain+0x1c/0x30
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] do_int3+0x34/0x70
    [] int3+0x27/0x2c
    [] ? msr_seek+0xb/0x80
    [] ? kgdbts_break_test+0x1/0x30
    [] ? configure_kgdbts+0x208/0x4d0
    [] init_kgdbts+0x13/0x20
    [] do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR: beyond end of test on 'singlestep_breakpoint_test' line 13
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:696 run_simple_test+0xb3/0x260()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? fill_get_buf+0xbf/0xf0
    [] ? printk+0x1b/0x20
    [] run_simple_test+0xb3/0x260
    [] kgdbts_put_char+0x14/0x20
    [] put_packet+0x86/0xe0
    [] kgdb_handle_exception+0x2f0/0xd90
    [] kgdb_notify+0x58/0x180
    [] ? __atomic_notifier_call_chain+0x1c/0x30
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] do_int3+0x34/0x70
    [] int3+0x27/0x2c
    [] ? msr_seek+0xb/0x80
    [] ? kgdbts_break_test+0x1/0x30
    [] ? configure_kgdbts+0x208/0x4d0
    [] init_kgdbts+0x13/0x20
    [] do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR GET: EOB on 'singlestep_breakpoint_test' at 13
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:681 run_simple_test+0x22d/0x260()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? fill_get_buf+0xbf/0xf0
    [] ? printk+0x1b/0x20
    [] run_simple_test+0x22d/0x260
    [] kgdbts_get_char+0x15/0x20
    [] put_packet+0x9c/0xe0
    [] kgdb_handle_exception+0x2f0/0xd90
    [] kgdb_notify+0x58/0x180
    [] ? __atomic_notifier_call_chain+0x1c/0x30
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] do_int3+0x34/0x70
    [] int3+0x27/0x2c
    [] ? msr_seek+0xb/0x80
    [] ? kgdbts_break_test+0x1/0x30
    [] ? configure_kgdbts+0x208/0x4d0
    [] init_kgdbts+0x13/0x20
    [] do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR: beyond end of test on 'singlestep_breakpoint_test' line 13
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:696 run_simple_test+0xb3/0x260()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? fill_get_buf+0xbf/0xf0
    [] ? touch_nmi_watchdog+0x12/0x60
    [] ? fill_get_buf+0xbf/0xf0
    [] ? printk+0x1b/0x20
    [] run_simple_test+0xb3/0x260
    [] kgdbts_put_char+0x14/0x20
    [] put_packet+0xbc/0xe0
    [] kgdb_handle_exception+0x2f0/0xd90
    [] kgdb_notify+0x58/0x180
    [] ? __atomic_notifier_call_chain+0x1c/0x30
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] do_int3+0x34/0x70
    [] int3+0x27/0x2c
    [] ? msr_seek+0xb/0x80
    [] ? kgdbts_break_test+0x1/0x30
    [] ? configure_kgdbts+0x208/0x4d0
    [] init_kgdbts+0x13/0x20
    [] do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR GET: EOB on 'singlestep_breakpoint_test' at 13
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:681 run_simple_test+0x22d/0x260()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? fill_get_buf+0xbf/0xf0
    [] ? touch_nmi_watchdog+0x12/0x60
    [] ? fill_get_buf+0xbf/0xf0
    [] ? printk+0x1b/0x20
    [] ? printk+0x1b/0x20
    [] run_simple_test+0x22d/0x260
    [] ? put_packet+0xbc/0xe0
    [] kgdbts_get_char+0x15/0x20
    [] kgdb_handle_exception+0x200/0xd90
    [] kgdb_notify+0x58/0x180
    [] ? __atomic_notifier_call_chain+0x1c/0x30
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] do_int3+0x34/0x70
    [] int3+0x27/0x2c
    [] ? msr_seek+0xb/0x80
    [] ? kgdbts_break_test+0x1/0x30
    [] ? configure_kgdbts+0x208/0x4d0
    [] init_kgdbts+0x13/0x20
    [] do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR: beyond end of test on 'singlestep_breakpoint_test' line 13
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:696 run_simple_test+0xb3/0x260()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? fill_get_buf+0xbf/0xf0
    [] ? touch_nmi_watchdog+0x12/0x60
    [] ? fill_get_buf+0xbf/0xf0
    [] ? touch_nmi_watchdog+0x12/0x60
    [] ? fill_get_buf+0xbf/0xf0
    [] ? printk+0x1b/0x20
    [] run_simple_test+0xb3/0x260
    [] ? put_packet+0xbc/0xe0
    [] kgdbts_put_char+0x14/0x20
    [] kgdb_handle_exception+0x303/0xd90
    [] kgdb_notify+0x58/0x180
    [] ? __atomic_notifier_call_chain+0x1c/0x30
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] do_int3+0x34/0x70
    [] int3+0x27/0x2c
    [] ? msr_seek+0xb/0x80
    [] ? kgdbts_break_test+0x1/0x30
    [] ? configure_kgdbts+0x208/0x4d0
    [] init_kgdbts+0x13/0x20
    [] do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR: beyond end of test on 'singlestep_breakpoint_test' line 13
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:696 run_simple_test+0xb3/0x260()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? fill_get_buf+0xbf/0xf0
    [] ? touch_nmi_watchdog+0x12/0x60
    [] ? fill_get_buf+0xbf/0xf0
    [] ? printk+0x1b/0x20
    [] run_simple_test+0xb3/0x260
    [] kgdbts_put_char+0x14/0x20
    [] put_packet+0x22/0xe0
    [] kgdb_handle_exception+0xa00/0xd90
    [] kgdb_notify+0x58/0x180
    [] ? __atomic_notifier_call_chain+0x1c/0x30
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] do_int3+0x34/0x70
    [] int3+0x27/0x2c
    [] ? msr_seek+0xb/0x80
    [] ? kgdbts_break_test+0x1/0x30
    [] ? configure_kgdbts+0x208/0x4d0
    [] init_kgdbts+0x13/0x20
    [] do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR: beyond end of test on 'singlestep_breakpoint_test' line 13
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:696 run_simple_test+0xb3/0x260()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? fill_get_buf+0xbf/0xf0
    [] ? touch_nmi_watchdog+0x12/0x60
    [] ? fill_get_buf+0xbf/0xf0
    [] ? printk+0x1b/0x20
    [] run_simple_test+0xb3/0x260
    [] kgdbts_put_char+0x14/0x20
    [] put_packet+0x3e/0xe0
    [] kgdb_handle_exception+0xa00/0xd90
    [] kgdb_notify+0x58/0x180
    [] ? __atomic_notifier_call_chain+0x1c/0x30
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] do_int3+0x34/0x70
    [] int3+0x27/0x2c
    [] ? msr_seek+0xb/0x80
    [] ? kgdbts_break_test+0x1/0x30
    [] ? configure_kgdbts+0x208/0x4d0
    [] init_kgdbts+0x13/0x20
    [] do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR: beyond end of test on 'singlestep_breakpoint_test' line 13
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:696 run_simple_test+0xb3/0x260()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? fill_get_buf+0xbf/0xf0
    [] ? touch_nmi_watchdog+0x12/0x60
    [] ? fill_get_buf+0xbf/0xf0
    [] ? printk+0x1b/0x20
    [] run_simple_test+0xb3/0x260
    [] kgdbts_put_char+0x14/0x20
    [] put_packet+0x3e/0xe0
    [] kgdb_handle_exception+0xa00/0xd90
    [] kgdb_notify+0x58/0x180
    [] ? __atomic_notifier_call_chain+0x1c/0x30
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] do_int3+0x34/0x70
    [] int3+0x27/0x2c
    [] ? msr_seek+0xb/0x80
    [] ? kgdbts_break_test+0x1/0x30
    [] ? configure_kgdbts+0x208/0x4d0
    [] init_kgdbts+0x13/0x20
    [] do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR: beyond end of test on 'singlestep_breakpoint_test' line 13
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:696 run_simple_test+0xb3/0x260()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? fill_get_buf+0xbf/0xf0
    [] ? touch_nmi_watchdog+0x12/0x60
    [] ? fill_get_buf+0xbf/0xf0
    [] ? printk+0x1b/0x20
    [] run_simple_test+0xb3/0x260
    [] kgdbts_put_char+0x14/0x20
    [] put_packet+0x66/0xe0
    [] kgdb_handle_exception+0xa00/0xd90
    [] kgdb_notify+0x58/0x180
    [] ? __atomic_notifier_call_chain+0x1c/0x30
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] do_int3+0x34/0x70
    [] int3+0x27/0x2c
    [] ? msr_seek+0xb/0x80
    [] ? kgdbts_break_test+0x1/0x30
    [] ? configure_kgdbts+0x208/0x4d0
    [] init_kgdbts+0x13/0x20
    [] do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR: beyond end of test on 'singlestep_breakpoint_test' line 13
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:696 run_simple_test+0xb3/0x260()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? fill_get_buf+0xbf/0xf0
    [] ? touch_nmi_watchdog+0x12/0x60
    [] ? fill_get_buf+0xbf/0xf0
    [] ? printk+0x1b/0x20
    [] run_simple_test+0xb3/0x260
    [] kgdbts_put_char+0x14/0x20
    [] put_packet+0x76/0xe0
    [] kgdb_handle_exception+0xa00/0xd90
    [] kgdb_notify+0x58/0x180
    [] ? __atomic_notifier_call_chain+0x1c/0x30
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] do_int3+0x34/0x70
    [] int3+0x27/0x2c
    [] ? msr_seek+0xb/0x80
    [] ? kgdbts_break_test+0x1/0x30
    [] ? configure_kgdbts+0x208/0x4d0
    [] init_kgdbts+0x13/0x20
    [] do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR: beyond end of test on 'singlestep_breakpoint_test' line 13
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:696 run_simple_test+0xb3/0x260()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? fill_get_buf+0xbf/0xf0
    [] ? touch_nmi_watchdog+0x12/0x60
    [] ? fill_get_buf+0xbf/0xf0
    [] ? printk+0x1b/0x20
    [] run_simple_test+0xb3/0x260
    [] kgdbts_put_char+0x14/0x20
    [] put_packet+0x86/0xe0
    [] kgdb_handle_exception+0xa00/0xd90
    [] kgdb_notify+0x58/0x180
    [] ? __atomic_notifier_call_chain+0x1c/0x30
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] do_int3+0x34/0x70
    [] int3+0x27/0x2c
    [] ? msr_seek+0xb/0x80
    [] ? kgdbts_break_test+0x1/0x30
    [] ? configure_kgdbts+0x208/0x4d0
    [] init_kgdbts+0x13/0x20
    [] do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR GET: EOB on 'singlestep_breakpoint_test' at 13
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:681 run_simple_test+0x22d/0x260()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? fill_get_buf+0xbf/0xf0
    [] ? touch_nmi_watchdog+0x12/0x60
    [] ? fill_get_buf+0xbf/0xf0
    [] ? printk+0x1b/0x20
    [] run_simple_test+0x22d/0x260
    [] kgdbts_get_char+0x15/0x20
    [] put_packet+0x9c/0xe0
    [] kgdb_handle_exception+0xa00/0xd90
    [] kgdb_notify+0x58/0x180
    [] ? __atomic_notifier_call_chain+0x1c/0x30
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] do_int3+0x34/0x70
    [] int3+0x27/0x2c
    [] ? msr_seek+0xb/0x80
    [] ? kgdbts_break_test+0x1/0x30
    [] ? configure_kgdbts+0x208/0x4d0
    [] init_kgdbts+0x13/0x20
    [] do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR: beyond end of test on 'singlestep_breakpoint_test' line 13
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:696 run_simple_test+0xb3/0x260()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? fill_get_buf+0xbf/0xf0
    [] ? touch_nmi_watchdog+0x12/0x60
    [] ? fill_get_buf+0xbf/0xf0
    [] ? printk+0x1b/0x20
    [] run_simple_test+0xb3/0x260
    [] kgdbts_put_char+0x14/0x20
    [] put_packet+0xbc/0xe0
    [] kgdb_handle_exception+0xa00/0xd90
    [] kgdb_notify+0x58/0x180
    [] ? __atomic_notifier_call_chain+0x1c/0x30
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] do_int3+0x34/0x70
    [] int3+0x27/0x2c
    [] ? msr_seek+0xb/0x80
    [] ? kgdbts_break_test+0x1/0x30
    [] ? configure_kgdbts+0x208/0x4d0
    [] init_kgdbts+0x13/0x20
    [] do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    BUG: unable to handle kernel NULL pointer dereference at 0000044c
    IP: []
    *pdpt = 00000000006e7001 *pde = 0000000000000000
    Oops: 0000 [#1] SMP
    KGDB: Waiting for remote debugger
    kgdbts: ERROR GET: EOB on 'singlestep_breakpoint_test' at 13
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:681 run_simple_test+0x22d/0x260()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? atomic_notifier_call_chain+0x1a/0x20
    [] ? printk+0x1b/0x20
    [] run_simple_test+0x22d/0x260
    [] kgdbts_get_char+0x15/0x20
    [] kgdb_handle_exception+0x200/0xd90
    [] ? __call_console_drivers+0x60/0x70
    [] kgdb_notify+0x58/0x180
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] __die+0x78/0xf0
    [] die+0x3b/0x70
    [] do_page_fault+0x264/0x7f0
    [] ? __do_softirq+0xcc/0xf0
    [] ? irq_exit+0x3b/0x50
    [] ? do_page_fault+0x0/0x7f0
    [] ? configure_kgdbts+0x208/0x4d0
    [] error_code+0x72/0x78
    [] ? configure_kgdbts+0x208/0x4d0
    [] ? msr_seek+0xb/0x80
    [] ? init_kgdbts+0x13/0x20
    [] ? do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] ? kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] ? kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR: beyond end of test on 'singlestep_breakpoint_test' line 13
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:696 run_simple_test+0xb3/0x260()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? touch_nmi_watchdog+0x12/0x60
    [] ? fill_get_buf+0xbf/0xf0
    [] ? printk+0x1b/0x20
    [] run_simple_test+0xb3/0x260
    [] kgdbts_put_char+0x14/0x20
    [] kgdb_handle_exception+0x303/0xd90
    [] ? __call_console_drivers+0x60/0x70
    [] kgdb_notify+0x58/0x180
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] __die+0x78/0xf0
    [] die+0x3b/0x70
    [] do_page_fault+0x264/0x7f0
    [] ? __do_softirq+0xcc/0xf0
    [] ? irq_exit+0x3b/0x50
    [] ? do_page_fault+0x0/0x7f0
    [] ? configure_kgdbts+0x208/0x4d0
    [] error_code+0x72/0x78
    [] ? configure_kgdbts+0x208/0x4d0
    [] ? msr_seek+0xb/0x80
    [] ? init_kgdbts+0x13/0x20
    [] ? do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] ? kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] ? kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR: beyond end of test on 'singlestep_breakpoint_test' line 13
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:696 run_simple_test+0xb3/0x260()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? printk+0x1b/0x20
    [] run_simple_test+0xb3/0x260
    [] kgdbts_put_char+0x14/0x20
    [] put_packet+0x22/0xe0
    [] kgdb_handle_exception+0xa00/0xd90
    [] ? __call_console_drivers+0x60/0x70
    [] kgdb_notify+0x58/0x180
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] __die+0x78/0xf0
    [] die+0x3b/0x70
    [] do_page_fault+0x264/0x7f0
    [] ? __do_softirq+0xcc/0xf0
    [] ? irq_exit+0x3b/0x50
    [] ? do_page_fault+0x0/0x7f0
    [] ? configure_kgdbts+0x208/0x4d0
    [] error_code+0x72/0x78
    [] ? configure_kgdbts+0x208/0x4d0
    [] ? msr_seek+0xb/0x80
    [] ? init_kgdbts+0x13/0x20
    [] ? do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] ? kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] ? kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR: beyond end of test on 'singlestep_breakpoint_test' line 13
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:696 run_simple_test+0xb3/0x260()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? printk+0x1b/0x20
    [] run_simple_test+0xb3/0x260
    [] kgdbts_put_char+0x14/0x20
    [] put_packet+0x3e/0xe0
    [] kgdb_handle_exception+0xa00/0xd90
    [] ? __call_console_drivers+0x60/0x70
    [] kgdb_notify+0x58/0x180
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] __die+0x78/0xf0
    [] die+0x3b/0x70
    [] do_page_fault+0x264/0x7f0
    [] ? __do_softirq+0xcc/0xf0
    [] ? irq_exit+0x3b/0x50
    [] ? do_page_fault+0x0/0x7f0
    [] ? configure_kgdbts+0x208/0x4d0
    [] error_code+0x72/0x78
    [] ? configure_kgdbts+0x208/0x4d0
    [] ? msr_seek+0xb/0x80
    [] ? init_kgdbts+0x13/0x20
    [] ? do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] ? kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] ? kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR: beyond end of test on 'singlestep_breakpoint_test' line 13
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:696 run_simple_test+0xb3/0x260()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? printk+0x1b/0x20
    [] run_simple_test+0xb3/0x260
    [] kgdbts_put_char+0x14/0x20
    [] put_packet+0x3e/0xe0
    [] kgdb_handle_exception+0xa00/0xd90
    [] ? __call_console_drivers+0x60/0x70
    [] kgdb_notify+0x58/0x180
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] __die+0x78/0xf0
    [] die+0x3b/0x70
    [] do_page_fault+0x264/0x7f0
    [] ? __do_softirq+0xcc/0xf0
    [] ? irq_exit+0x3b/0x50
    [] ? do_page_fault+0x0/0x7f0
    [] ? configure_kgdbts+0x208/0x4d0
    [] error_code+0x72/0x78
    [] ? configure_kgdbts+0x208/0x4d0
    [] ? msr_seek+0xb/0x80
    [] ? init_kgdbts+0x13/0x20
    [] ? do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] ? kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] ? kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR: beyond end of test on 'singlestep_breakpoint_test' line 13
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:696 run_simple_test+0xb3/0x260()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? printk+0x1b/0x20
    [] run_simple_test+0xb3/0x260
    [] kgdbts_put_char+0x14/0x20
    [] put_packet+0x66/0xe0
    [] kgdb_handle_exception+0xa00/0xd90
    [] ? __call_console_drivers+0x60/0x70
    [] kgdb_notify+0x58/0x180
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] __die+0x78/0xf0
    [] die+0x3b/0x70
    [] do_page_fault+0x264/0x7f0
    [] ? __do_softirq+0xcc/0xf0
    [] ? irq_exit+0x3b/0x50
    [] ? do_page_fault+0x0/0x7f0
    [] ? configure_kgdbts+0x208/0x4d0
    [] error_code+0x72/0x78
    [] ? configure_kgdbts+0x208/0x4d0
    [] ? msr_seek+0xb/0x80
    [] ? init_kgdbts+0x13/0x20
    [] ? do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] ? kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] ? kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR: beyond end of test on 'singlestep_breakpoint_test' line 13
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:696 run_simple_test+0xb3/0x260()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? printk+0x1b/0x20
    [] run_simple_test+0xb3/0x260
    [] kgdbts_put_char+0x14/0x20
    [] put_packet+0x76/0xe0
    [] kgdb_handle_exception+0xa00/0xd90
    [] ? __call_console_drivers+0x60/0x70
    [] kgdb_notify+0x58/0x180
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] __die+0x78/0xf0
    [] die+0x3b/0x70
    [] do_page_fault+0x264/0x7f0
    [] ? __do_softirq+0xcc/0xf0
    [] ? irq_exit+0x3b/0x50
    [] ? do_page_fault+0x0/0x7f0
    [] ? configure_kgdbts+0x208/0x4d0
    [] error_code+0x72/0x78
    [] ? configure_kgdbts+0x208/0x4d0
    [] ? msr_seek+0xb/0x80
    [] ? init_kgdbts+0x13/0x20
    [] ? do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] ? kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] ? kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR: beyond end of test on 'singlestep_breakpoint_test' line 13
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:696 run_simple_test+0xb3/0x260()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? printk+0x1b/0x20
    [] run_simple_test+0xb3/0x260
    [] kgdbts_put_char+0x14/0x20
    [] put_packet+0x86/0xe0
    [] kgdb_handle_exception+0xa00/0xd90
    [] ? __call_console_drivers+0x60/0x70
    [] kgdb_notify+0x58/0x180
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] __die+0x78/0xf0
    [] die+0x3b/0x70
    [] do_page_fault+0x264/0x7f0
    [] ? __do_softirq+0xcc/0xf0
    [] ? irq_exit+0x3b/0x50
    [] ? do_page_fault+0x0/0x7f0
    [] ? configure_kgdbts+0x208/0x4d0
    [] error_code+0x72/0x78
    [] ? configure_kgdbts+0x208/0x4d0
    [] ? msr_seek+0xb/0x80
    [] ? init_kgdbts+0x13/0x20
    [] ? do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] ? kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] ? kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR GET: EOB on 'singlestep_breakpoint_test' at 13
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:681 run_simple_test+0x22d/0x260()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? printk+0x1b/0x20
    [] run_simple_test+0x22d/0x260
    [] kgdbts_get_char+0x15/0x20
    [] put_packet+0x9c/0xe0
    [] kgdb_handle_exception+0xa00/0xd90
    [] ? __call_console_drivers+0x60/0x70
    [] kgdb_notify+0x58/0x180
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] __die+0x78/0xf0
    [] die+0x3b/0x70
    [] do_page_fault+0x264/0x7f0
    [] ? __do_softirq+0xcc/0xf0
    [] ? irq_exit+0x3b/0x50
    [] ? do_page_fault+0x0/0x7f0
    [] ? configure_kgdbts+0x208/0x4d0
    [] error_code+0x72/0x78
    [] ? configure_kgdbts+0x208/0x4d0
    [] ? msr_seek+0xb/0x80
    [] ? init_kgdbts+0x13/0x20
    [] ? do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] ? kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] ? kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    kgdbts: ERROR: beyond end of test on 'singlestep_breakpoint_test' line 13
    ------------[ cut here ]------------
    WARNING: at drivers/misc/kgdbts.c:696 run_simple_test+0xb3/0x260()
    Modules linked in:
    Pid: 1, comm: swapper Tainted: G W 2.6.27-rc6 #16
    [] warn_on_slowpath+0x54/0x70
    [] ? __call_console_drivers+0x60/0x70
    [] ? up+0x2b/0x40
    [] ? release_console_sem+0x1a4/0x1c0
    [] ? touch_nmi_watchdog+0x12/0x60
    [] ? fill_get_buf+0xbf/0xf0
    [] ? printk+0x1b/0x20
    [] run_simple_test+0xb3/0x260
    [] kgdbts_put_char+0x14/0x20
    [] put_packet+0xbc/0xe0
    [] kgdb_handle_exception+0xa00/0xd90
    [] ? __call_console_drivers+0x60/0x70
    [] kgdb_notify+0x58/0x180
    [] notifier_call_chain+0x2d/0x60
    [] __atomic_notifier_call_chain+0x1c/0x30
    [] atomic_notifier_call_chain+0x1a/0x20
    [] notify_die+0x2d/0x30
    [] __die+0x78/0xf0
    [] die+0x3b/0x70
    [] do_page_fault+0x264/0x7f0
    [] ? __do_softirq+0xcc/0xf0
    [] ? irq_exit+0x3b/0x50
    [] ? do_page_fault+0x0/0x7f0
    [] ? configure_kgdbts+0x208/0x4d0
    [] error_code+0x72/0x78
    [] ? configure_kgdbts+0x208/0x4d0
    [] ? msr_seek+0xb/0x80
    [] ? init_kgdbts+0x13/0x20
    [] ? do_one_initcall+0x30/0x160
    [] ? init_kgdbts+0x0/0x20
    [] ? register_irq_proc+0xb3/0xd0
    [] ? kernel_init+0x10d/0x170
    [] ? kernel_init+0x0/0x170
    [] ? kernel_thread_helper+0x7/0x18
    =======================
    ---[ end trace 7151dc3b5234c3c1 ]---
    Kernel panic - not syncing: Attempted to kill init!










    config:
    -----------------------------

    #
    # Automatically generated make config: don't edit
    # Linux kernel version: 2.6.27-rc6
    # Thu Sep 11 18:24:02 2008
    #
    # CONFIG_64BIT is not set
    CONFIG_X86_32=y
    # CONFIG_X86_64 is not set
    CONFIG_X86=y
    CONFIG_ARCH_DEFCONFIG="arch/x86/configs/i386_defconfig"
    # CONFIG_GENERIC_LOCKBREAK is not set
    CONFIG_GENERIC_TIME=y
    CONFIG_GENERIC_CMOS_UPDATE=y
    CONFIG_CLOCKSOURCE_WATCHDOG=y
    CONFIG_GENERIC_CLOCKEVENTS=y
    CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
    CONFIG_LOCKDEP_SUPPORT=y
    CONFIG_STACKTRACE_SUPPORT=y
    CONFIG_HAVE_LATENCYTOP_SUPPORT=y
    CONFIG_FAST_CMPXCHG_LOCAL=y
    CONFIG_MMU=y
    CONFIG_ZONE_DMA=y
    CONFIG_GENERIC_ISA_DMA=y
    CONFIG_GENERIC_IOMAP=y
    CONFIG_GENERIC_BUG=y
    CONFIG_GENERIC_HWEIGHT=y
    # CONFIG_GENERIC_GPIO is not set
    CONFIG_ARCH_MAY_HAVE_PC_FDC=y
    # CONFIG_RWSEM_GENERIC_SPINLOCK is not set
    CONFIG_RWSEM_XCHGADD_ALGORITHM=y
    # CONFIG_ARCH_HAS_ILOG2_U32 is not set
    # CONFIG_ARCH_HAS_ILOG2_U64 is not set
    CONFIG_ARCH_HAS_CPU_IDLE_WAIT=y
    CONFIG_GENERIC_CALIBRATE_DELAY=y
    # CONFIG_GENERIC_TIME_VSYSCALL is not set
    CONFIG_ARCH_HAS_CPU_RELAX=y
    CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
    CONFIG_HAVE_SETUP_PER_CPU_AREA=y
    # CONFIG_HAVE_CPUMASK_OF_CPU_MAP is not set
    CONFIG_ARCH_HIBERNATION_POSSIBLE=y
    CONFIG_ARCH_SUSPEND_POSSIBLE=y
    # CONFIG_ZONE_DMA32 is not set
    CONFIG_ARCH_POPULATES_NODE_MAP=y
    # CONFIG_AUDIT_ARCH is not set
    CONFIG_ARCH_SUPPORTS_AOUT=y
    CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y
    CONFIG_GENERIC_HARDIRQS=y
    CONFIG_GENERIC_IRQ_PROBE=y
    CONFIG_GENERIC_PENDING_IRQ=y
    CONFIG_X86_SMP=y
    CONFIG_X86_32_SMP=y
    CONFIG_X86_HT=y
    CONFIG_X86_BIOS_REBOOT=y
    CONFIG_X86_TRAMPOLINE=y
    CONFIG_KTIME_SCALAR=y
    CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"

    #
    # General setup
    #
    CONFIG_EXPERIMENTAL=y
    CONFIG_LOCK_KERNEL=y
    CONFIG_INIT_ENV_ARG_LIMIT=32
    CONFIG_LOCALVERSION=""
    # CONFIG_LOCALVERSION_AUTO is not set
    CONFIG_SWAP=y
    CONFIG_SYSVIPC=y
    CONFIG_SYSVIPC_SYSCTL=y
    # CONFIG_POSIX_MQUEUE is not set
    # CONFIG_BSD_PROCESS_ACCT is not set
    # CONFIG_TASKSTATS is not set
    # CONFIG_AUDIT is not set
    CONFIG_IKCONFIG=y
    # CONFIG_IKCONFIG_PROC is not set
    CONFIG_LOG_BUF_SHIFT=14
    # CONFIG_CGROUPS is not set
    CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y
    # CONFIG_GROUP_SCHED is not set
    CONFIG_SYSFS_DEPRECATED=y
    CONFIG_SYSFS_DEPRECATED_V2=y
    # CONFIG_RELAY is not set
    CONFIG_NAMESPACES=y
    # CONFIG_UTS_NS is not set
    # CONFIG_IPC_NS is not set
    # CONFIG_USER_NS is not set
    # CONFIG_PID_NS is not set
    CONFIG_BLK_DEV_INITRD=y
    CONFIG_INITRAMFS_SOURCE=""
    # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
    CONFIG_SYSCTL=y
    # CONFIG_EMBEDDED is not set
    CONFIG_UID16=y
    CONFIG_SYSCTL_SYSCALL=y
    CONFIG_KALLSYMS=y
    # CONFIG_KALLSYMS_ALL is not set
    # CONFIG_KALLSYMS_EXTRA_PASS is not set
    CONFIG_HOTPLUG=y
    CONFIG_PRINTK=y
    CONFIG_BUG=y
    CONFIG_ELF_CORE=y
    CONFIG_PCSPKR_PLATFORM=y
    CONFIG_COMPAT_BRK=y
    CONFIG_BASE_FULL=y
    CONFIG_FUTEX=y
    CONFIG_ANON_INODES=y
    CONFIG_EPOLL=y
    CONFIG_SIGNALFD=y
    CONFIG_TIMERFD=y
    CONFIG_EVENTFD=y
    CONFIG_SHMEM=y
    CONFIG_VM_EVENT_COUNTERS=y
    CONFIG_SLAB=y
    # CONFIG_SLUB is not set
    # CONFIG_SLOB is not set
    # CONFIG_PROFILING is not set
    # CONFIG_MARKERS is not set
    CONFIG_HAVE_OPROFILE=y
    # CONFIG_KPROBES is not set
    CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
    CONFIG_HAVE_IOREMAP_PROT=y
    CONFIG_HAVE_KPROBES=y
    CONFIG_HAVE_KRETPROBES=y
    # CONFIG_HAVE_ARCH_TRACEHOOK is not set
    # CONFIG_HAVE_DMA_ATTRS is not set
    CONFIG_USE_GENERIC_SMP_HELPERS=y
    # CONFIG_HAVE_CLK is not set
    CONFIG_PROC_PAGE_MONITOR=y
    CONFIG_HAVE_GENERIC_DMA_COHERENT=y
    CONFIG_SLABINFO=y
    CONFIG_RT_MUTEXES=y
    # CONFIG_TINY_SHMEM is not set
    CONFIG_BASE_SMALL=0
    CONFIG_MODULES=y
    # CONFIG_MODULE_FORCE_LOAD is not set
    CONFIG_MODULE_UNLOAD=y
    # CONFIG_MODULE_FORCE_UNLOAD is not set
    # CONFIG_MODVERSIONS is not set
    # CONFIG_MODULE_SRCVERSION_ALL is not set
    CONFIG_KMOD=y
    CONFIG_STOP_MACHINE=y
    CONFIG_BLOCK=y
    # CONFIG_LBD is not set
    # CONFIG_BLK_DEV_IO_TRACE is not set
    CONFIG_LSF=y
    # CONFIG_BLK_DEV_BSG is not set
    # CONFIG_BLK_DEV_INTEGRITY is not set

    #
    # IO Schedulers
    #
    CONFIG_IOSCHED_NOOP=y
    CONFIG_IOSCHED_AS=y
    CONFIG_IOSCHED_DEADLINE=y
    CONFIG_IOSCHED_CFQ=y
    CONFIG_DEFAULT_AS=y
    # CONFIG_DEFAULT_DEADLINE is not set
    # CONFIG_DEFAULT_CFQ is not set
    # CONFIG_DEFAULT_NOOP is not set
    CONFIG_DEFAULT_IOSCHED="anticipatory"
    CONFIG_CLASSIC_RCU=y

    #
    # Processor type and features
    #
    # CONFIG_TICK_ONESHOT is not set
    # CONFIG_NO_HZ is not set
    # CONFIG_HIGH_RES_TIMERS is not set
    CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
    CONFIG_SMP=y
    CONFIG_X86_FIND_SMP_CONFIG=y
    CONFIG_X86_MPPARSE=y
    CONFIG_X86_PC=y
    # CONFIG_X86_ELAN is not set
    # CONFIG_X86_VOYAGER is not set
    # CONFIG_X86_GENERICARCH is not set
    # CONFIG_X86_VSMP is not set
    # CONFIG_X86_RDC321X is not set
    CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
    # CONFIG_PARAVIRT_GUEST is not set
    # CONFIG_MEMTEST is not set
    # CONFIG_M386 is not set
    # CONFIG_M486 is not set
    # CONFIG_M586 is not set
    # CONFIG_M586TSC is not set
    # CONFIG_M586MMX is not set
    CONFIG_M686=y
    # CONFIG_MPENTIUMII is not set
    # CONFIG_MPENTIUMIII is not set
    # CONFIG_MPENTIUMM is not set
    # CONFIG_MPENTIUM4 is not set
    # CONFIG_MK6 is not set
    # CONFIG_MK7 is not set
    # CONFIG_MK8 is not set
    # CONFIG_MCRUSOE is not set
    # CONFIG_MEFFICEON is not set
    # CONFIG_MWINCHIPC6 is not set
    # CONFIG_MWINCHIP2 is not set
    # CONFIG_MWINCHIP3D is not set
    # CONFIG_MGEODEGX1 is not set
    # CONFIG_MGEODE_LX is not set
    # CONFIG_MCYRIXIII is not set
    # CONFIG_MVIAC3_2 is not set
    # CONFIG_MVIAC7 is not set
    # CONFIG_MPSC is not set
    # CONFIG_MCORE2 is not set
    # CONFIG_GENERIC_CPU is not set
    CONFIG_X86_GENERIC=y
    CONFIG_X86_CPU=y
    CONFIG_X86_CMPXCHG=y
    CONFIG_X86_L1_CACHE_SHIFT=7
    CONFIG_X86_XADD=y
    CONFIG_X86_PPRO_FENCE=y
    CONFIG_X86_WP_WORKS_OK=y
    CONFIG_X86_INVLPG=y
    CONFIG_X86_BSWAP=y
    CONFIG_X86_POPAD_OK=y
    CONFIG_X86_INTEL_USERCOPY=y
    CONFIG_X86_USE_PPRO_CHECKSUM=y
    CONFIG_X86_TSC=y
    CONFIG_X86_CMPXCHG64=y
    CONFIG_X86_CMOV=y
    CONFIG_X86_MINIMUM_CPU_FAMILY=4
    CONFIG_X86_DEBUGCTLMSR=y
    # CONFIG_HPET_TIMER is not set
    CONFIG_DMI=y
    # CONFIG_IOMMU_HELPER is not set
    CONFIG_NR_CPUS=8
    # CONFIG_SCHED_SMT is not set
    CONFIG_SCHED_MC=y
    CONFIG_PREEMPT_NONE=y
    # CONFIG_PREEMPT_VOLUNTARY is not set
    # CONFIG_PREEMPT is not set
    CONFIG_X86_LOCAL_APIC=y
    CONFIG_X86_IO_APIC=y
    # CONFIG_X86_MCE is not set
    CONFIG_VM86=y
    # CONFIG_TOSHIBA is not set
    # CONFIG_I8K is not set
    # CONFIG_X86_REBOOTFIXUPS is not set
    CONFIG_MICROCODE=y
    CONFIG_MICROCODE_OLD_INTERFACE=y
    CONFIG_X86_MSR=y
    CONFIG_X86_CPUID=y
    # CONFIG_NOHIGHMEM is not set
    # CONFIG_HIGHMEM4G is not set
    CONFIG_HIGHMEM64G=y
    CONFIG_PAGE_OFFSET=0xC0000000
    CONFIG_HIGHMEM=y
    CONFIG_X86_PAE=y
    CONFIG_ARCH_FLATMEM_ENABLE=y
    CONFIG_ARCH_SPARSEMEM_ENABLE=y
    CONFIG_ARCH_SELECT_MEMORY_MODEL=y
    CONFIG_SELECT_MEMORY_MODEL=y
    CONFIG_FLATMEM_MANUAL=y
    # CONFIG_DISCONTIGMEM_MANUAL is not set
    # CONFIG_SPARSEMEM_MANUAL is not set
    CONFIG_FLATMEM=y
    CONFIG_FLAT_NODE_MEM_MAP=y
    CONFIG_SPARSEMEM_STATIC=y
    # CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
    CONFIG_PAGEFLAGS_EXTENDED=y
    CONFIG_SPLIT_PTLOCK_CPUS=4
    CONFIG_RESOURCES_64BIT=y
    CONFIG_ZONE_DMA_FLAG=1
    CONFIG_BOUNCE=y
    CONFIG_VIRT_TO_BUS=y
    # CONFIG_HIGHPTE is not set
    # CONFIG_MATH_EMULATION is not set
    CONFIG_MTRR=y
    # CONFIG_MTRR_SANITIZER is not set
    # CONFIG_X86_PAT is not set
    # CONFIG_EFI is not set
    CONFIG_IRQBALANCE=y
    CONFIG_SECCOMP=y
    CONFIG_HZ_100=y
    # CONFIG_HZ_250 is not set
    # CONFIG_HZ_300 is not set
    # CONFIG_HZ_1000 is not set
    CONFIG_HZ=100
    # CONFIG_SCHED_HRTICK is not set
    CONFIG_KEXEC=y
    # CONFIG_CRASH_DUMP is not set
    CONFIG_PHYSICAL_START=0x100000
    # CONFIG_RELOCATABLE is not set
    CONFIG_PHYSICAL_ALIGN=0x100000
    CONFIG_HOTPLUG_CPU=y
    CONFIG_COMPAT_VDSO=y
    CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y

    #
    # Power management options
    #
    CONFIG_PM=y
    # CONFIG_PM_DEBUG is not set
    CONFIG_PM_SLEEP_SMP=y
    CONFIG_PM_SLEEP=y
    CONFIG_SUSPEND=y
    CONFIG_SUSPEND_FREEZER=y
    # CONFIG_HIBERNATION is not set
    CONFIG_ACPI=y
    CONFIG_ACPI_SLEEP=y
    # CONFIG_ACPI_PROCFS is not set
    CONFIG_ACPI_PROCFS_POWER=y
    CONFIG_ACPI_SYSFS_POWER=y
    CONFIG_ACPI_PROC_EVENT=y
    CONFIG_ACPI_AC=m
    CONFIG_ACPI_BATTERY=m
    CONFIG_ACPI_BUTTON=m
    CONFIG_ACPI_FAN=m
    CONFIG_ACPI_DOCK=y
    # CONFIG_ACPI_BAY is not set
    CONFIG_ACPI_PROCESSOR=m
    CONFIG_ACPI_HOTPLUG_CPU=y
    CONFIG_ACPI_THERMAL=m
    # CONFIG_ACPI_WMI is not set
    CONFIG_ACPI_ASUS=m
    CONFIG_ACPI_TOSHIBA=m
    CONFIG_ACPI_CUSTOM_DSDT_FILE=""
    # CONFIG_ACPI_CUSTOM_DSDT is not set
    CONFIG_ACPI_BLACKLIST_YEAR=0
    # CONFIG_ACPI_DEBUG is not set
    CONFIG_ACPI_EC=y
    # CONFIG_ACPI_PCI_SLOT is not set
    CONFIG_ACPI_POWER=y
    CONFIG_ACPI_SYSTEM=y
    CONFIG_X86_PM_TIMER=y
    CONFIG_ACPI_CONTAINER=m
    # CONFIG_ACPI_SBS is not set
    # CONFIG_APM is not set

    #
    # CPU Frequency scaling
    #
    # CONFIG_CPU_FREQ is not set
    CONFIG_CPU_IDLE=y
    CONFIG_CPU_IDLE_GOV_LADDER=y

    #
    # Bus options (PCI etc.)
    #
    CONFIG_PCI=y
    # CONFIG_PCI_GOBIOS is not set
    # CONFIG_PCI_GOMMCONFIG is not set
    # CONFIG_PCI_GODIRECT is not set
    # CONFIG_PCI_GOOLPC is not set
    CONFIG_PCI_GOANY=y
    CONFIG_PCI_BIOS=y
    CONFIG_PCI_DIRECT=y
    CONFIG_PCI_MMCONFIG=y
    CONFIG_PCI_DOMAINS=y
    CONFIG_PCIEPORTBUS=y
    CONFIG_PCIEAER=y
    # CONFIG_PCIEASPM is not set
    CONFIG_ARCH_SUPPORTS_MSI=y
    # CONFIG_PCI_MSI is not set
    CONFIG_PCI_LEGACY=y
    # CONFIG_PCI_DEBUG is not set
    CONFIG_HT_IRQ=y
    CONFIG_ISA_DMA_API=y
    # CONFIG_ISA is not set
    # CONFIG_MCA is not set
    # CONFIG_SCx200 is not set
    # CONFIG_OLPC is not set
    CONFIG_K8_NB=y
    # CONFIG_PCCARD is not set
    # CONFIG_HOTPLUG_PCI is not set

    #
    # Executable file formats / Emulations
    #
    CONFIG_BINFMT_ELF=y
    # CONFIG_BINFMT_AOUT is not set
    # CONFIG_BINFMT_MISC is not set
    CONFIG_NET=y

    #
    # Networking options
    #
    CONFIG_PACKET=y
    # CONFIG_PACKET_MMAP is not set
    CONFIG_UNIX=y
    CONFIG_XFRM=y
    # CONFIG_XFRM_USER is not set
    # CONFIG_XFRM_SUB_POLICY is not set
    # CONFIG_XFRM_MIGRATE is not set
    # CONFIG_XFRM_STATISTICS is not set
    # CONFIG_NET_KEY is not set
    CONFIG_INET=y
    # CONFIG_IP_MULTICAST is not set
    # CONFIG_IP_ADVANCED_ROUTER is not set
    CONFIG_IP_FIB_HASH=y
    CONFIG_IP_PNP=y
    CONFIG_IP_PNP_DHCP=y
    # CONFIG_IP_PNP_BOOTP is not set
    # CONFIG_IP_PNP_RARP is not set
    # CONFIG_NET_IPIP is not set
    # CONFIG_NET_IPGRE is not set
    # CONFIG_ARPD is not set
    # CONFIG_SYN_COOKIES is not set
    # CONFIG_INET_AH is not set
    # CONFIG_INET_ESP is not set
    # CONFIG_INET_IPCOMP is not set
    # CONFIG_INET_XFRM_TUNNEL is not set
    # CONFIG_INET_TUNNEL is not set
    CONFIG_INET_XFRM_MODE_TRANSPORT=y
    CONFIG_INET_XFRM_MODE_TUNNEL=y
    CONFIG_INET_XFRM_MODE_BEET=y
    # CONFIG_INET_LRO is not set
    # CONFIG_INET_DIAG is not set
    # CONFIG_TCP_CONG_ADVANCED is not set
    CONFIG_TCP_CONG_CUBIC=y
    CONFIG_DEFAULT_TCP_CONG="cubic"
    # CONFIG_TCP_MD5SIG is not set
    # CONFIG_IP_VS is not set
    # CONFIG_IPV6 is not set
    # CONFIG_NETWORK_SECMARK is not set
    CONFIG_NETFILTER=y
    # CONFIG_NETFILTER_DEBUG is not set
    CONFIG_NETFILTER_ADVANCED=y
    CONFIG_BRIDGE_NETFILTER=y

    #
    # Core Netfilter Configuration
    #
    # CONFIG_NETFILTER_NETLINK_QUEUE is not set
    # CONFIG_NETFILTER_NETLINK_LOG is not set
    # CONFIG_NF_CONNTRACK is not set
    # CONFIG_NETFILTER_XTABLES is not set

    #
    # IP: Netfilter Configuration
    #
    # CONFIG_IP_NF_QUEUE is not set
    # CONFIG_IP_NF_IPTABLES is not set
    # CONFIG_IP_NF_ARPTABLES is not set

    #
    # Bridge: Netfilter Configuration
    #
    # CONFIG_BRIDGE_NF_EBTABLES is not set
    # CONFIG_IP_DCCP is not set
    # CONFIG_IP_SCTP is not set
    # CONFIG_TIPC is not set
    # CONFIG_ATM is not set
    CONFIG_STP=y
    CONFIG_BRIDGE=y
    # CONFIG_VLAN_8021Q is not set
    # CONFIG_DECNET is not set
    CONFIG_LLC=y
    # CONFIG_LLC2 is not set
    # CONFIG_IPX is not set
    # CONFIG_ATALK is not set
    # CONFIG_X25 is not set
    # CONFIG_LAPB is not set
    # CONFIG_ECONET is not set
    # CONFIG_WAN_ROUTER is not set
    # CONFIG_NET_SCHED is not set

    #
    # Network testing
    #
    # CONFIG_NET_PKTGEN is not set
    # CONFIG_HAMRADIO is not set
    # CONFIG_CAN is not set
    # CONFIG_IRDA is not set
    # CONFIG_BT is not set
    # CONFIG_AF_RXRPC is not set

    #
    # Wireless
    #
    # CONFIG_CFG80211 is not set
    # CONFIG_WIRELESS_EXT is not set
    # CONFIG_MAC80211 is not set
    # CONFIG_IEEE80211 is not set
    # CONFIG_RFKILL is not set
    # CONFIG_NET_9P is not set

    #
    # Device Drivers
    #

    #
    # Generic Driver Options
    #
    CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
    # CONFIG_STANDALONE is not set
    CONFIG_PREVENT_FIRMWARE_BUILD=y
    CONFIG_FW_LOADER=y
    CONFIG_FIRMWARE_IN_KERNEL=y
    CONFIG_EXTRA_FIRMWARE=""
    # CONFIG_DEBUG_DRIVER is not set
    # CONFIG_DEBUG_DEVRES is not set
    # CONFIG_SYS_HYPERVISOR is not set
    # CONFIG_CONNECTOR is not set
    # CONFIG_MTD is not set
    # CONFIG_PARPORT is not set
    CONFIG_PNP=y
    CONFIG_PNP_DEBUG=y

    #
    # Protocols
    #
    CONFIG_PNPACPI=y
    CONFIG_BLK_DEV=y
    CONFIG_BLK_DEV_FD=y
    # CONFIG_BLK_CPQ_DA is not set
    CONFIG_BLK_CPQ_CISS_DA=y
    # CONFIG_CISS_SCSI_TAPE is not set
    # CONFIG_BLK_DEV_DAC960 is not set
    # CONFIG_BLK_DEV_UMEM is not set
    # CONFIG_BLK_DEV_COW_COMMON is not set
    CONFIG_BLK_DEV_LOOP=y
    # CONFIG_BLK_DEV_CRYPTOLOOP is not set
    # CONFIG_BLK_DEV_NBD is not set
    # CONFIG_BLK_DEV_SX8 is not set
    # CONFIG_BLK_DEV_UB is not set
    CONFIG_BLK_DEV_RAM=y
    CONFIG_BLK_DEV_RAM_COUNT=16
    CONFIG_BLK_DEV_RAM_SIZE=4096
    # CONFIG_BLK_DEV_XIP is not set
    # CONFIG_CDROM_PKTCDVD is not set
    # CONFIG_ATA_OVER_ETH is not set
    # CONFIG_BLK_DEV_HD is not set
    CONFIG_MISC_DEVICES=y
    # CONFIG_IBM_ASM is not set
    # CONFIG_PHANTOM is not set
    # CONFIG_EEPROM_93CX6 is not set
    # CONFIG_SGI_IOC4 is not set
    # CONFIG_TIFM_CORE is not set
    # CONFIG_FUJITSU_LAPTOP is not set
    # CONFIG_TC1100_WMI is not set
    # CONFIG_MSI_LAPTOP is not set
    # CONFIG_COMPAL_LAPTOP is not set
    # CONFIG_SONY_LAPTOP is not set
    # CONFIG_THINKPAD_ACPI is not set
    # CONFIG_INTEL_MENLOW is not set
    # CONFIG_ENCLOSURE_SERVICES is not set
    # CONFIG_HP_ILO is not set
    CONFIG_HAVE_IDE=y
    CONFIG_IDE=y
    CONFIG_BLK_DEV_IDE=y

    #
    # Please see Documentation/ide/ide.txt for help/info on IDE drives
    #
    CONFIG_BLK_DEV_IDE_SATA=y
    CONFIG_BLK_DEV_IDEDISK=y
    # CONFIG_IDEDISK_MULTI_MODE is not set
    # CONFIG_BLK_DEV_IDECD is not set
    # CONFIG_BLK_DEV_IDETAPE is not set
    # CONFIG_BLK_DEV_IDEFLOPPY is not set
    # CONFIG_BLK_DEV_IDESCSI is not set
    CONFIG_BLK_DEV_IDEACPI=y
    # CONFIG_IDE_TASK_IOCTL is not set
    CONFIG_IDE_PROC_FS=y

    #
    # IDE chipset support/bugfixes
    #
    CONFIG_IDE_GENERIC=y
    # CONFIG_BLK_DEV_PLATFORM is not set
    # CONFIG_BLK_DEV_CMD640 is not set
    # CONFIG_BLK_DEV_IDEPNP is not set
    CONFIG_BLK_DEV_IDEDMA_SFF=y

    #
    # PCI IDE chipsets support
    #
    CONFIG_BLK_DEV_IDEPCI=y
    CONFIG_IDEPCI_PCIBUS_ORDER=y
    # CONFIG_BLK_DEV_OFFBOARD is not set
    CONFIG_BLK_DEV_GENERIC=y
    # CONFIG_BLK_DEV_OPTI621 is not set
    # CONFIG_BLK_DEV_RZ1000 is not set
    CONFIG_BLK_DEV_IDEDMA_PCI=y
    # CONFIG_BLK_DEV_AEC62XX is not set
    # CONFIG_BLK_DEV_ALI15X3 is not set
    # CONFIG_BLK_DEV_AMD74XX is not set
    # CONFIG_BLK_DEV_ATIIXP is not set
    # CONFIG_BLK_DEV_CMD64X is not set
    # CONFIG_BLK_DEV_TRIFLEX is not set
    # CONFIG_BLK_DEV_CS5520 is not set
    # CONFIG_BLK_DEV_CS5530 is not set
    # CONFIG_BLK_DEV_CS5535 is not set
    # CONFIG_BLK_DEV_HPT366 is not set
    # CONFIG_BLK_DEV_JMICRON is not set
    # CONFIG_BLK_DEV_SC1200 is not set
    CONFIG_BLK_DEV_PIIX=y
    # CONFIG_BLK_DEV_IT8213 is not set
    # CONFIG_BLK_DEV_IT821X is not set
    # CONFIG_BLK_DEV_NS87415 is not set
    # CONFIG_BLK_DEV_PDC202XX_OLD is not set
    # CONFIG_BLK_DEV_PDC202XX_NEW is not set
    CONFIG_BLK_DEV_SVWKS=y
    # CONFIG_BLK_DEV_SIIMAGE is not set
    # CONFIG_BLK_DEV_SIS5513 is not set
    # CONFIG_BLK_DEV_SLC90E66 is not set
    # CONFIG_BLK_DEV_TRM290 is not set
    # CONFIG_BLK_DEV_VIA82CXXX is not set
    # CONFIG_BLK_DEV_TC86C001 is not set
    CONFIG_BLK_DEV_IDEDMA=y

    #
    # SCSI device support
    #
    # CONFIG_RAID_ATTRS is not set
    CONFIG_SCSI=y
    CONFIG_SCSI_DMA=y
    CONFIG_SCSI_TGT=y
    CONFIG_SCSI_NETLINK=y
    CONFIG_SCSI_PROC_FS=y

    #
    # SCSI support type (disk, tape, CD-ROM)
    #
    CONFIG_BLK_DEV_SD=y
    # CONFIG_CHR_DEV_ST is not set
    # CONFIG_CHR_DEV_OSST is not set
    # CONFIG_BLK_DEV_SR is not set
    CONFIG_CHR_DEV_SG=y
    # CONFIG_CHR_DEV_SCH is not set

    #
    # Some SCSI devices (e.g. CD jukebox) support multiple LUNs
    #
    # CONFIG_SCSI_MULTI_LUN is not set
    # CONFIG_SCSI_CONSTANTS is not set
    # CONFIG_SCSI_LOGGING is not set
    # CONFIG_SCSI_SCAN_ASYNC is not set
    CONFIG_SCSI_WAIT_SCAN=m

    #
    # SCSI Transports
    #
    CONFIG_SCSI_SPI_ATTRS=y
    CONFIG_SCSI_FC_ATTRS=y
    # CONFIG_SCSI_FC_TGT_ATTRS is not set
    CONFIG_SCSI_ISCSI_ATTRS=y
    CONFIG_SCSI_SAS_ATTRS=y
    CONFIG_SCSI_SAS_LIBSAS=y
    # CONFIG_SCSI_SAS_ATA is not set
    CONFIG_SCSI_SAS_HOST_SMP=y
    CONFIG_SCSI_SAS_LIBSAS_DEBUG=y
    # CONFIG_SCSI_SRP_ATTRS is not set
    CONFIG_SCSI_LOWLEVEL=y
    CONFIG_ISCSI_TCP=y
    CONFIG_BLK_DEV_3W_XXXX_RAID=y
    # CONFIG_SCSI_3W_9XXX is not set
    # CONFIG_SCSI_ACARD is not set
    CONFIG_SCSI_AACRAID=y
    CONFIG_SCSI_AIC7XXX=y
    CONFIG_AIC7XXX_CMDS_PER_DEVICE=32
    CONFIG_AIC7XXX_RESET_DELAY_MS=15000
    CONFIG_AIC7XXX_DEBUG_ENABLE=y
    CONFIG_AIC7XXX_DEBUG_MASK=0
    CONFIG_AIC7XXX_REG_PRETTY_PRINT=y
    # CONFIG_SCSI_AIC7XXX_OLD is not set
    CONFIG_SCSI_AIC79XX=y
    CONFIG_AIC79XX_CMDS_PER_DEVICE=32
    CONFIG_AIC79XX_RESET_DELAY_MS=15000
    CONFIG_AIC79XX_DEBUG_ENABLE=y
    CONFIG_AIC79XX_DEBUG_MASK=0
    CONFIG_AIC79XX_REG_PRETTY_PRINT=y
    # CONFIG_SCSI_AIC94XX is not set
    # CONFIG_SCSI_DPT_I2O is not set
    CONFIG_SCSI_ADVANSYS=y
    # CONFIG_SCSI_ARCMSR is not set
    CONFIG_MEGARAID_NEWGEN=y
    # CONFIG_MEGARAID_MM is not set
    # CONFIG_MEGARAID_LEGACY is not set
    # CONFIG_MEGARAID_SAS is not set
    # CONFIG_SCSI_HPTIOP is not set
    # CONFIG_SCSI_BUSLOGIC is not set
    # CONFIG_SCSI_DMX3191D is not set
    # CONFIG_SCSI_EATA is not set
    # CONFIG_SCSI_FUTURE_DOMAIN is not set
    CONFIG_SCSI_GDTH=y
    # CONFIG_SCSI_IPS is not set
    # CONFIG_SCSI_INITIO is not set
    # CONFIG_SCSI_INIA100 is not set
    CONFIG_SCSI_MVSAS=y
    # CONFIG_SCSI_STEX is not set
    # CONFIG_SCSI_SYM53C8XX_2 is not set
    # CONFIG_SCSI_IPR is not set
    CONFIG_SCSI_QLOGIC_1280=y
    CONFIG_SCSI_QLA_FC=y
    # CONFIG_SCSI_QLA_ISCSI is not set
    # CONFIG_SCSI_LPFC is not set
    # CONFIG_SCSI_DC395x is not set
    # CONFIG_SCSI_DC390T is not set
    # CONFIG_SCSI_NSP32 is not set
    # CONFIG_SCSI_DEBUG is not set
    # CONFIG_SCSI_SRP is not set
    # CONFIG_SCSI_DH is not set
    CONFIG_ATA=y
    # CONFIG_ATA_NONSTANDARD is not set
    CONFIG_ATA_ACPI=y
    CONFIG_SATA_PMP=y
    CONFIG_SATA_AHCI=y
    # CONFIG_SATA_SIL24 is not set
    CONFIG_ATA_SFF=y
    # CONFIG_SATA_SVW is not set
    CONFIG_ATA_PIIX=y
    CONFIG_SATA_MV=y
    CONFIG_SATA_NV=y
    # CONFIG_PDC_ADMA is not set
    # CONFIG_SATA_QSTOR is not set
    # CONFIG_SATA_PROMISE is not set
    # CONFIG_SATA_SX4 is not set
    # CONFIG_SATA_SIL is not set
    # CONFIG_SATA_SIS is not set
    # CONFIG_SATA_ULI is not set
    # CONFIG_SATA_VIA is not set
    # CONFIG_SATA_VITESSE is not set
    # CONFIG_SATA_INIC162X is not set
    # CONFIG_PATA_ACPI is not set
    # CONFIG_PATA_ALI is not set
    # CONFIG_PATA_AMD is not set
    # CONFIG_PATA_ARTOP is not set
    # CONFIG_PATA_ATIIXP is not set
    # CONFIG_PATA_CMD640_PCI is not set
    # CONFIG_PATA_CMD64X is not set
    # CONFIG_PATA_CS5520 is not set
    # CONFIG_PATA_CS5530 is not set
    # CONFIG_PATA_CS5535 is not set
    # CONFIG_PATA_CS5536 is not set
    # CONFIG_PATA_CYPRESS is not set
    # CONFIG_PATA_EFAR is not set
    # CONFIG_ATA_GENERIC is not set
    # CONFIG_PATA_HPT366 is not set
    # CONFIG_PATA_HPT37X is not set
    # CONFIG_PATA_HPT3X2N is not set
    # CONFIG_PATA_HPT3X3 is not set
    # CONFIG_PATA_IT821X is not set
    # CONFIG_PATA_IT8213 is not set
    # CONFIG_PATA_JMICRON is not set
    # CONFIG_PATA_TRIFLEX is not set
    CONFIG_PATA_MARVELL=y
    CONFIG_PATA_MPIIX=y
    CONFIG_PATA_OLDPIIX=y
    # CONFIG_PATA_NETCELL is not set
    # CONFIG_PATA_NINJA32 is not set
    # CONFIG_PATA_NS87410 is not set
    # CONFIG_PATA_NS87415 is not set
    # CONFIG_PATA_OPTI is not set
    # CONFIG_PATA_OPTIDMA is not set
    # CONFIG_PATA_PDC_OLD is not set
    # CONFIG_PATA_RADISYS is not set
    # CONFIG_PATA_RZ1000 is not set
    # CONFIG_PATA_SC1200 is not set
    # CONFIG_PATA_SERVERWORKS is not set
    # CONFIG_PATA_PDC2027X is not set
    # CONFIG_PATA_SIL680 is not set
    # CONFIG_PATA_SIS is not set
    # CONFIG_PATA_VIA is not set
    # CONFIG_PATA_WINBOND is not set
    CONFIG_PATA_SCH=y
    CONFIG_MD=y
    CONFIG_BLK_DEV_MD=y
    # CONFIG_MD_LINEAR is not set
    CONFIG_MD_RAID0=y
    CONFIG_MD_RAID1=y
    # CONFIG_MD_RAID10 is not set
    # CONFIG_MD_RAID456 is not set
    # CONFIG_MD_MULTIPATH is not set
    # CONFIG_MD_FAULTY is not set
    CONFIG_BLK_DEV_DM=y
    # CONFIG_DM_DEBUG is not set
    # CONFIG_DM_CRYPT is not set
    CONFIG_DM_SNAPSHOT=y
    CONFIG_DM_MIRROR=y
    # CONFIG_DM_ZERO is not set
    # CONFIG_DM_MULTIPATH is not set
    # CONFIG_DM_DELAY is not set
    # CONFIG_DM_UEVENT is not set
    CONFIG_FUSION=y
    CONFIG_FUSION_SPI=y
    # CONFIG_FUSION_FC is not set
    # CONFIG_FUSION_SAS is not set
    CONFIG_FUSION_MAX_SGE=128
    # CONFIG_FUSION_CTL is not set
    # CONFIG_FUSION_LOGGING is not set

    #
    # IEEE 1394 (FireWire) support
    #

    #
    # Enable only one of the two stacks, unless you know what you are doing
    #
    # CONFIG_FIREWIRE is not set
    # CONFIG_IEEE1394 is not set
    # CONFIG_I2O is not set
    # CONFIG_MACINTOSH_DRIVERS is not set
    CONFIG_NETDEVICES=y
    # CONFIG_DUMMY is not set
    # CONFIG_BONDING is not set
    # CONFIG_MACVLAN is not set
    # CONFIG_EQUALIZER is not set
    CONFIG_TUN=y
    # CONFIG_VETH is not set
    # CONFIG_NET_SB1000 is not set
    # CONFIG_ARCNET is not set
    CONFIG_PHYLIB=y

    #
    # MII PHY device drivers
    #
    # CONFIG_MARVELL_PHY is not set
    # CONFIG_DAVICOM_PHY is not set
    # CONFIG_QSEMI_PHY is not set
    # CONFIG_LXT_PHY is not set
    # CONFIG_CICADA_PHY is not set
    # CONFIG_VITESSE_PHY is not set
    # CONFIG_SMSC_PHY is not set
    # CONFIG_BROADCOM_PHY is not set
    # CONFIG_ICPLUS_PHY is not set
    # CONFIG_REALTEK_PHY is not set
    # CONFIG_FIXED_PHY is not set
    # CONFIG_MDIO_BITBANG is not set
    CONFIG_NET_ETHERNET=y
    CONFIG_MII=y
    # CONFIG_HAPPYMEAL is not set
    # CONFIG_SUNGEM is not set
    # CONFIG_CASSINI is not set
    CONFIG_NET_VENDOR_3COM=y
    CONFIG_VORTEX=y
    # CONFIG_TYPHOON is not set
    CONFIG_NET_TULIP=y
    # CONFIG_DE2104X is not set
    CONFIG_TULIP=y
    # CONFIG_TULIP_MWI is not set
    # CONFIG_TULIP_MMIO is not set
    # CONFIG_TULIP_NAPI is not set
    # CONFIG_DE4X5 is not set
    # CONFIG_WINBOND_840 is not set
    # CONFIG_DM9102 is not set
    # CONFIG_ULI526X is not set
    # CONFIG_HP100 is not set
    # CONFIG_IBM_NEW_EMAC_ZMII is not set
    # CONFIG_IBM_NEW_EMAC_RGMII is not set
    # CONFIG_IBM_NEW_EMAC_TAH is not set
    # CONFIG_IBM_NEW_EMAC_EMAC4 is not set
    CONFIG_NET_PCI=y
    CONFIG_PCNET32=y
    # CONFIG_AMD8111_ETH is not set
    # CONFIG_ADAPTEC_STARFIRE is not set
    # CONFIG_B44 is not set
    # CONFIG_FORCEDETH is not set
    # CONFIG_EEPRO100 is not set
    CONFIG_E100=y
    # CONFIG_FEALNX is not set
    # CONFIG_NATSEMI is not set
    CONFIG_NE2K_PCI=y
    # CONFIG_8139CP is not set
    CONFIG_8139TOO=y
    CONFIG_8139TOO_PIO=y
    # CONFIG_8139TOO_TUNE_TWISTER is not set
    # CONFIG_8139TOO_8129 is not set
    # CONFIG_8139_OLD_RX_RESET is not set
    # CONFIG_R6040 is not set
    # CONFIG_SIS900 is not set
    # CONFIG_EPIC100 is not set
    # CONFIG_SUNDANCE is not set
    # CONFIG_TLAN is not set
    CONFIG_VIA_RHINE=y
    # CONFIG_VIA_RHINE_MMIO is not set
    # CONFIG_SC92031 is not set
    CONFIG_NETDEV_1000=y
    CONFIG_ACENIC=y
    # CONFIG_ACENIC_OMIT_TIGON_I is not set
    # CONFIG_DL2K is not set
    CONFIG_E1000=y
    # CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
    CONFIG_E1000E=y
    # CONFIG_IP1000 is not set
    CONFIG_IGB=y
    # CONFIG_IGB_LRO is not set
    # CONFIG_NS83820 is not set
    # CONFIG_HAMACHI is not set
    # CONFIG_YELLOWFIN is not set
    # CONFIG_R8169 is not set
    # CONFIG_SIS190 is not set
    # CONFIG_SKGE is not set
    # CONFIG_SKY2 is not set
    # CONFIG_VIA_VELOCITY is not set
    CONFIG_TIGON3=y
    CONFIG_BNX2=y
    # CONFIG_QLA3XXX is not set
    # CONFIG_ATL1 is not set
    # CONFIG_ATL1E is not set
    CONFIG_NETDEV_10000=y
    # CONFIG_CHELSIO_T1 is not set
    # CONFIG_CHELSIO_T3 is not set
    # CONFIG_IXGBE is not set
    # CONFIG_IXGB is not set
    # CONFIG_S2IO is not set
    # CONFIG_MYRI10GE is not set
    # CONFIG_NETXEN_NIC is not set
    # CONFIG_NIU is not set
    # CONFIG_MLX4_CORE is not set
    # CONFIG_TEHUTI is not set
    # CONFIG_BNX2X is not set
    # CONFIG_SFC is not set
    # CONFIG_TR is not set

    #
    # Wireless LAN
    #
    # CONFIG_WLAN_PRE80211 is not set
    # CONFIG_WLAN_80211 is not set
    # CONFIG_IWLWIFI_LEDS is not set

    #
    # USB Network Adapters
    #
    # CONFIG_USB_CATC is not set
    # CONFIG_USB_KAWETH is not set
    # CONFIG_USB_PEGASUS is not set
    # CONFIG_USB_RTL8150 is not set
    # CONFIG_USB_USBNET is not set
    # CONFIG_WAN is not set
    # CONFIG_FDDI is not set
    # CONFIG_HIPPI is not set
    # CONFIG_PPP is not set
    # CONFIG_SLIP is not set
    # CONFIG_NET_FC is not set
    CONFIG_NETCONSOLE=y
    CONFIG_NETCONSOLE_DYNAMIC=y
    CONFIG_NETPOLL=y
    CONFIG_NETPOLL_TRAP=y
    CONFIG_NET_POLL_CONTROLLER=y
    # CONFIG_ISDN is not set
    # CONFIG_PHONE is not set

    #
    # Input device support
    #
    CONFIG_INPUT=y
    # CONFIG_INPUT_FF_MEMLESS is not set
    # CONFIG_INPUT_POLLDEV is not set

    #
    # Userland interfaces
    #
    CONFIG_INPUT_MOUSEDEV=y
    CONFIG_INPUT_MOUSEDEV_PSAUX=y
    CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
    CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
    # CONFIG_INPUT_JOYDEV is not set
    # CONFIG_INPUT_EVDEV is not set
    # CONFIG_INPUT_EVBUG is not set

    #
    # Input Device Drivers
    #
    CONFIG_INPUT_KEYBOARD=y
    CONFIG_KEYBOARD_ATKBD=y
    # CONFIG_KEYBOARD_SUNKBD is not set
    # CONFIG_KEYBOARD_LKKBD is not set
    # CONFIG_KEYBOARD_XTKBD is not set
    # CONFIG_KEYBOARD_NEWTON is not set
    # CONFIG_KEYBOARD_STOWAWAY is not set
    CONFIG_INPUT_MOUSE=y
    CONFIG_MOUSE_PS2=y
    CONFIG_MOUSE_PS2_ALPS=y
    CONFIG_MOUSE_PS2_LOGIPS2PP=y
    CONFIG_MOUSE_PS2_SYNAPTICS=y
    CONFIG_MOUSE_PS2_LIFEBOOK=y
    CONFIG_MOUSE_PS2_TRACKPOINT=y
    # CONFIG_MOUSE_PS2_TOUCHKIT is not set
    # CONFIG_MOUSE_SERIAL is not set
    # CONFIG_MOUSE_APPLETOUCH is not set
    # CONFIG_MOUSE_BCM5974 is not set
    # CONFIG_MOUSE_VSXXXAA is not set
    # CONFIG_INPUT_JOYSTICK is not set
    # CONFIG_INPUT_TABLET is not set
    # CONFIG_INPUT_TOUCHSCREEN is not set
    # CONFIG_INPUT_MISC is not set

    #
    # Hardware I/O ports
    #
    CONFIG_SERIO=y
    CONFIG_SERIO_I8042=y
    CONFIG_SERIO_SERPORT=y
    # CONFIG_SERIO_CT82C710 is not set
    # CONFIG_SERIO_PCIPS2 is not set
    CONFIG_SERIO_LIBPS2=y
    # CONFIG_SERIO_RAW is not set
    # CONFIG_GAMEPORT is not set

    #
    # Character devices
    #
    CONFIG_VT=y
    CONFIG_CONSOLE_TRANSLATIONS=y
    CONFIG_VT_CONSOLE=y
    CONFIG_HW_CONSOLE=y
    CONFIG_VT_HW_CONSOLE_BINDING=y
    CONFIG_DEVKMEM=y
    # CONFIG_SERIAL_NONSTANDARD is not set
    # CONFIG_NOZOMI is not set

    #
    # Serial drivers
    #
    CONFIG_SERIAL_8250=y
    CONFIG_SERIAL_8250_CONSOLE=y
    CONFIG_FIX_EARLYCON_MEM=y
    CONFIG_SERIAL_8250_PCI=y
    CONFIG_SERIAL_8250_PNP=y
    CONFIG_SERIAL_8250_NR_UARTS=4
    CONFIG_SERIAL_8250_RUNTIME_UARTS=4
    # CONFIG_SERIAL_8250_EXTENDED is not set

    #
    # Non-8250 serial port support
    #
    CONFIG_SERIAL_CORE=y
    CONFIG_SERIAL_CORE_CONSOLE=y
    CONFIG_CONSOLE_POLL=y
    # CONFIG_SERIAL_JSM is not set
    CONFIG_UNIX98_PTYS=y
    CONFIG_LEGACY_PTYS=y
    CONFIG_LEGACY_PTY_COUNT=256
    # CONFIG_IPMI_HANDLER is not set
    # CONFIG_HW_RANDOM is not set
    # CONFIG_NVRAM is not set
    # CONFIG_R3964 is not set
    # CONFIG_APPLICOM is not set
    # CONFIG_SONYPI is not set
    # CONFIG_MWAVE is not set
    # CONFIG_PC8736x_GPIO is not set
    # CONFIG_NSC_GPIO is not set
    # CONFIG_CS5535_GPIO is not set
    # CONFIG_RAW_DRIVER is not set
    # CONFIG_HPET is not set
    # CONFIG_HANGCHECK_TIMER is not set
    # CONFIG_TCG_TPM is not set
    # CONFIG_TELCLOCK is not set
    CONFIG_DEVPORT=y
    # CONFIG_I2C is not set
    # CONFIG_SPI is not set
    CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
    # CONFIG_GPIOLIB is not set
    # CONFIG_W1 is not set
    CONFIG_POWER_SUPPLY=y
    # CONFIG_POWER_SUPPLY_DEBUG is not set
    # CONFIG_PDA_POWER is not set
    # CONFIG_BATTERY_DS2760 is not set
    # CONFIG_HWMON is not set
    CONFIG_THERMAL=m
    # CONFIG_WATCHDOG is not set

    #
    # Sonics Silicon Backplane
    #
    CONFIG_SSB_POSSIBLE=y
    # CONFIG_SSB is not set

    #
    # Multifunction device drivers
    #
    # CONFIG_MFD_CORE is not set
    # CONFIG_MFD_SM501 is not set
    # CONFIG_HTC_PASIC3 is not set
    # CONFIG_MFD_TMIO is not set

    #
    # Multimedia devices
    #

    #
    # Multimedia core support
    #
    # CONFIG_VIDEO_DEV is not set
    # CONFIG_DVB_CORE is not set
    # CONFIG_VIDEO_MEDIA is not set

    #
    # Multimedia drivers
    #
    # CONFIG_DAB is not set

    #
    # Graphics support
    #
    CONFIG_AGP=m
    CONFIG_AGP_ALI=m
    CONFIG_AGP_ATI=m
    CONFIG_AGP_AMD=m
    CONFIG_AGP_AMD64=m
    CONFIG_AGP_INTEL=m
    CONFIG_AGP_NVIDIA=m
    CONFIG_AGP_SIS=m
    CONFIG_AGP_SWORKS=m
    CONFIG_AGP_VIA=m
    # CONFIG_AGP_EFFICEON is not set
    CONFIG_DRM=m
    CONFIG_DRM_TDFX=m
    CONFIG_DRM_R128=m
    CONFIG_DRM_RADEON=m
    CONFIG_DRM_I810=m
    CONFIG_DRM_I830=m
    CONFIG_DRM_I915=m
    CONFIG_DRM_MGA=m
    CONFIG_DRM_SIS=m
    # CONFIG_DRM_VIA is not set
    # CONFIG_DRM_SAVAGE is not set
    # CONFIG_VGASTATE is not set
    # CONFIG_VIDEO_OUTPUT_CONTROL is not set
    # CONFIG_FB is not set
    # CONFIG_BACKLIGHT_LCD_SUPPORT is not set
    CONFIG_BACKLIGHT_CLASS_DEVICE=m
    # CONFIG_BACKLIGHT_CORGI is not set
    # CONFIG_BACKLIGHT_PROGEAR is not set
    # CONFIG_BACKLIGHT_MBP_NVIDIA is not set

    #
    # Display device support
    #
    # CONFIG_DISPLAY_SUPPORT is not set

    #
    # Console display driver support
    #
    CONFIG_VGA_CONSOLE=y
    # CONFIG_VGACON_SOFT_SCROLLBACK is not set
    # CONFIG_VIDEO_SELECT is not set
    CONFIG_DUMMY_CONSOLE=y
    # CONFIG_SOUND is not set
    CONFIG_HID_SUPPORT=y
    CONFIG_HID=y
    CONFIG_HID_DEBUG=y
    # CONFIG_HIDRAW is not set

    #
    # USB Input Devices
    #
    CONFIG_USB_HID=y
    # CONFIG_USB_HIDINPUT_POWERBOOK is not set
    # CONFIG_HID_FF is not set
    # CONFIG_USB_HIDDEV is not set
    CONFIG_USB_SUPPORT=y
    CONFIG_USB_ARCH_HAS_HCD=y
    CONFIG_USB_ARCH_HAS_OHCI=y
    CONFIG_USB_ARCH_HAS_EHCI=y
    CONFIG_USB=y
    # CONFIG_USB_DEBUG is not set
    # CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set

    #
    # Miscellaneous USB options
    #
    # CONFIG_USB_DEVICEFS is not set
    CONFIG_USB_DEVICE_CLASS=y
    # CONFIG_USB_DYNAMIC_MINORS is not set
    # CONFIG_USB_SUSPEND is not set
    # CONFIG_USB_OTG is not set
    CONFIG_USB_MON=y

    #
    # USB Host Controller Drivers
    #
    # CONFIG_USB_C67X00_HCD is not set
    # CONFIG_USB_EHCI_HCD is not set
    # CONFIG_USB_ISP116X_HCD is not set
    # CONFIG_USB_ISP1760_HCD is not set
    CONFIG_USB_OHCI_HCD=y
    # CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
    # CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
    CONFIG_USB_OHCI_LITTLE_ENDIAN=y
    CONFIG_USB_UHCI_HCD=y
    # CONFIG_USB_SL811_HCD is not set
    # CONFIG_USB_R8A66597_HCD is not set

    #
    # USB Device Class drivers
    #
    # CONFIG_USB_ACM is not set
    # CONFIG_USB_PRINTER is not set
    # CONFIG_USB_WDM is not set

    #
    # NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
    #

    #
    # may also be needed; see USB_STORAGE Help for more information
    #
    # CONFIG_USB_STORAGE is not set
    # CONFIG_USB_LIBUSUAL is not set

    #
    # USB Imaging devices
    #
    # CONFIG_USB_MDC800 is not set
    # CONFIG_USB_MICROTEK is not set

    #
    # USB port drivers
    #
    # CONFIG_USB_SERIAL is not set

    #
    # USB Miscellaneous drivers
    #
    # CONFIG_USB_EMI62 is not set
    # CONFIG_USB_EMI26 is not set
    # CONFIG_USB_ADUTUX is not set
    # CONFIG_USB_RIO500 is not set
    # CONFIG_USB_LEGOTOWER is not set
    # CONFIG_USB_LCD is not set
    # CONFIG_USB_BERRY_CHARGE is not set
    # CONFIG_USB_LED is not set
    # CONFIG_USB_CYPRESS_CY7C63 is not set
    # CONFIG_USB_CYTHERM is not set
    # CONFIG_USB_PHIDGET is not set
    # CONFIG_USB_IDMOUSE is not set
    # CONFIG_USB_FTDI_ELAN is not set
    # CONFIG_USB_APPLEDISPLAY is not set
    # CONFIG_USB_LD is not set
    # CONFIG_USB_TRANCEVIBRATOR is not set
    # CONFIG_USB_IOWARRIOR is not set
    # CONFIG_USB_ISIGHTFW is not set
    # CONFIG_USB_GADGET is not set
    # CONFIG_MMC is not set
    # CONFIG_MEMSTICK is not set
    # CONFIG_NEW_LEDS is not set
    # CONFIG_ACCESSIBILITY is not set
    # CONFIG_INFINIBAND is not set
    # CONFIG_EDAC is not set
    CONFIG_RTC_LIB=m
    CONFIG_RTC_CLASS=m

    #
    # RTC interfaces
    #
    CONFIG_RTC_INTF_SYSFS=y
    CONFIG_RTC_INTF_PROC=y
    CONFIG_RTC_INTF_DEV=y
    # CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
    CONFIG_RTC_DRV_TEST=m

    #
    # SPI RTC drivers
    #

    #
    # Platform RTC drivers
    #
    CONFIG_RTC_DRV_CMOS=m
    # CONFIG_RTC_DRV_DS1511 is not set
    # CONFIG_RTC_DRV_DS1553 is not set
    # CONFIG_RTC_DRV_DS1742 is not set
    # CONFIG_RTC_DRV_STK17TA8 is not set
    CONFIG_RTC_DRV_M48T86=m
    # CONFIG_RTC_DRV_M48T59 is not set
    # CONFIG_RTC_DRV_V3020 is not set

    #
    # on-CPU RTC drivers
    #
    # CONFIG_UIO is not set

    #
    # Firmware Drivers
    #
    # CONFIG_EDD is not set
    CONFIG_FIRMWARE_MEMMAP=y
    # CONFIG_DELL_RBU is not set
    # CONFIG_DCDBAS is not set
    CONFIG_DMIID=y
    # CONFIG_ISCSI_IBFT_FIND is not set

    #
    # File systems
    #
    CONFIG_EXT2_FS=y
    # CONFIG_EXT2_FS_XATTR is not set
    # CONFIG_EXT2_FS_XIP is not set
    CONFIG_EXT3_FS=y
    CONFIG_EXT3_FS_XATTR=y
    # CONFIG_EXT3_FS_POSIX_ACL is not set
    # CONFIG_EXT3_FS_SECURITY is not set
    # CONFIG_EXT4DEV_FS is not set
    CONFIG_JBD=y
    CONFIG_FS_MBCACHE=y
    CONFIG_REISERFS_FS=y
    # CONFIG_REISERFS_CHECK is not set
    # CONFIG_REISERFS_PROC_INFO is not set
    # CONFIG_REISERFS_FS_XATTR is not set
    # CONFIG_JFS_FS is not set
    # CONFIG_FS_POSIX_ACL is not set
    # CONFIG_XFS_FS is not set
    # CONFIG_OCFS2_FS is not set
    CONFIG_DNOTIFY=y
    CONFIG_INOTIFY=y
    CONFIG_INOTIFY_USER=y
    # CONFIG_QUOTA is not set
    CONFIG_AUTOFS_FS=y
    CONFIG_AUTOFS4_FS=y
    CONFIG_FUSE_FS=y

    #
    # CD-ROM/DVD Filesystems
    #
    CONFIG_ISO9660_FS=y
    CONFIG_JOLIET=y
    CONFIG_ZISOFS=y
    # CONFIG_UDF_FS is not set

    #
    # DOS/FAT/NT Filesystems
    #
    CONFIG_FAT_FS=m
    CONFIG_MSDOS_FS=m
    CONFIG_VFAT_FS=m
    CONFIG_FAT_DEFAULT_CODEPAGE=437
    CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
    # CONFIG_NTFS_FS is not set

    #
    # Pseudo filesystems
    #
    CONFIG_PROC_FS=y
    CONFIG_PROC_KCORE=y
    CONFIG_PROC_SYSCTL=y
    CONFIG_SYSFS=y
    CONFIG_TMPFS=y
    # CONFIG_TMPFS_POSIX_ACL is not set
    # CONFIG_HUGETLBFS is not set
    # CONFIG_HUGETLB_PAGE is not set
    CONFIG_CONFIGFS_FS=y

    #
    # Miscellaneous filesystems
    #
    # CONFIG_ADFS_FS is not set
    # CONFIG_AFFS_FS is not set
    # CONFIG_HFS_FS is not set
    # CONFIG_HFSPLUS_FS is not set
    # CONFIG_BEFS_FS is not set
    # CONFIG_BFS_FS is not set
    # CONFIG_EFS_FS is not set
    CONFIG_CRAMFS=y
    # CONFIG_VXFS_FS is not set
    # CONFIG_MINIX_FS is not set
    # CONFIG_OMFS_FS is not set
    # CONFIG_HPFS_FS is not set
    # CONFIG_QNX4FS_FS is not set
    # CONFIG_ROMFS_FS is not set
    # CONFIG_SYSV_FS is not set
    # CONFIG_UFS_FS is not set
    CONFIG_NETWORK_FILESYSTEMS=y
    CONFIG_NFS_FS=y
    CONFIG_NFS_V3=y
    # CONFIG_NFS_V3_ACL is not set
    # CONFIG_NFS_V4 is not set
    CONFIG_ROOT_NFS=y
    CONFIG_NFSD=m
    CONFIG_NFSD_V3=y
    # CONFIG_NFSD_V3_ACL is not set
    # CONFIG_NFSD_V4 is not set
    CONFIG_LOCKD=y
    CONFIG_LOCKD_V4=y
    CONFIG_EXPORTFS=m
    CONFIG_NFS_COMMON=y
    CONFIG_SUNRPC=y
    # CONFIG_RPCSEC_GSS_KRB5 is not set
    # CONFIG_RPCSEC_GSS_SPKM3 is not set
    # CONFIG_SMB_FS is not set
    # CONFIG_CIFS is not set
    # CONFIG_NCP_FS is not set
    # CONFIG_CODA_FS is not set
    # CONFIG_AFS_FS is not set

    #
    # Partition Types
    #
    # CONFIG_PARTITION_ADVANCED is not set
    CONFIG_MSDOS_PARTITION=y
    CONFIG_NLS=y
    CONFIG_NLS_DEFAULT="iso8859-1"
    CONFIG_NLS_CODEPAGE_437=y
    # CONFIG_NLS_CODEPAGE_737 is not set
    # CONFIG_NLS_CODEPAGE_775 is not set
    # CONFIG_NLS_CODEPAGE_850 is not set
    # CONFIG_NLS_CODEPAGE_852 is not set
    # CONFIG_NLS_CODEPAGE_855 is not set
    # CONFIG_NLS_CODEPAGE_857 is not set
    # CONFIG_NLS_CODEPAGE_860 is not set
    # CONFIG_NLS_CODEPAGE_861 is not set
    # CONFIG_NLS_CODEPAGE_862 is not set
    # CONFIG_NLS_CODEPAGE_863 is not set
    # CONFIG_NLS_CODEPAGE_864 is not set
    # CONFIG_NLS_CODEPAGE_865 is not set
    # CONFIG_NLS_CODEPAGE_866 is not set
    # CONFIG_NLS_CODEPAGE_869 is not set
    # CONFIG_NLS_CODEPAGE_936 is not set
    # CONFIG_NLS_CODEPAGE_950 is not set
    # CONFIG_NLS_CODEPAGE_932 is not set
    # CONFIG_NLS_CODEPAGE_949 is not set
    # CONFIG_NLS_CODEPAGE_874 is not set
    # CONFIG_NLS_ISO8859_8 is not set
    # CONFIG_NLS_CODEPAGE_1250 is not set
    # CONFIG_NLS_CODEPAGE_1251 is not set
    # CONFIG_NLS_ASCII is not set
    CONFIG_NLS_ISO8859_1=y
    # CONFIG_NLS_ISO8859_2 is not set
    # CONFIG_NLS_ISO8859_3 is not set
    # CONFIG_NLS_ISO8859_4 is not set
    # CONFIG_NLS_ISO8859_5 is not set
    # CONFIG_NLS_ISO8859_6 is not set
    # CONFIG_NLS_ISO8859_7 is not set
    # CONFIG_NLS_ISO8859_9 is not set
    # CONFIG_NLS_ISO8859_13 is not set
    # CONFIG_NLS_ISO8859_14 is not set
    # CONFIG_NLS_ISO8859_15 is not set
    # CONFIG_NLS_KOI8_R is not set
    # CONFIG_NLS_KOI8_U is not set
    # CONFIG_NLS_UTF8 is not set
    # CONFIG_DLM is not set

    #
    # Kernel hacking
    #
    CONFIG_TRACE_IRQFLAGS_SUPPORT=y
    # CONFIG_PRINTK_TIME is not set
    CONFIG_ENABLE_WARN_DEPRECATED=y
    CONFIG_ENABLE_MUST_CHECK=y
    CONFIG_FRAME_WARN=1024
    CONFIG_MAGIC_SYSRQ=y
    CONFIG_UNUSED_SYMBOLS=y
    # CONFIG_DEBUG_FS is not set
    # CONFIG_HEADERS_CHECK is not set
    CONFIG_DEBUG_KERNEL=y
    # CONFIG_DEBUG_SHIRQ is not set
    CONFIG_DETECT_SOFTLOCKUP=y
    # CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
    CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
    CONFIG_SCHED_DEBUG=y
    # CONFIG_SCHEDSTATS is not set
    # CONFIG_TIMER_STATS is not set
    # CONFIG_DEBUG_OBJECTS is not set
    # CONFIG_DEBUG_SLAB is not set
    # CONFIG_DEBUG_RT_MUTEXES is not set
    # CONFIG_RT_MUTEX_TESTER is not set
    # CONFIG_DEBUG_SPINLOCK is not set
    # CONFIG_DEBUG_MUTEXES is not set
    # CONFIG_DEBUG_LOCK_ALLOC is not set
    # CONFIG_PROVE_LOCKING is not set
    # CONFIG_LOCK_STAT is not set
    # CONFIG_DEBUG_SPINLOCK_SLEEP is not set
    # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
    # CONFIG_DEBUG_KOBJECT is not set
    # CONFIG_DEBUG_HIGHMEM is not set
    CONFIG_DEBUG_BUGVERBOSE=y
    CONFIG_DEBUG_INFO=y
    # CONFIG_DEBUG_VM is not set
    # CONFIG_DEBUG_WRITECOUNT is not set
    CONFIG_DEBUG_MEMORY_INIT=y
    # CONFIG_DEBUG_LIST is not set
    # CONFIG_DEBUG_SG is not set
    CONFIG_FRAME_POINTER=y
    # CONFIG_BOOT_PRINTK_DELAY is not set
    # CONFIG_RCU_TORTURE_TEST is not set
    # CONFIG_BACKTRACE_SELF_TEST is not set
    # CONFIG_FAULT_INJECTION is not set
    # CONFIG_LATENCYTOP is not set
    CONFIG_SYSCTL_SYSCALL_CHECK=y
    CONFIG_HAVE_FTRACE=y
    CONFIG_HAVE_DYNAMIC_FTRACE=y
    # CONFIG_FTRACE is not set
    # CONFIG_IRQSOFF_TRACER is not set
    # CONFIG_SYSPROF_TRACER is not set
    # CONFIG_SCHED_TRACER is not set
    # CONFIG_CONTEXT_SWITCH_TRACER is not set
    CONFIG_PROVIDE_OHCI1394_DMA_INIT=y
    # CONFIG_SAMPLES is not set
    CONFIG_HAVE_ARCH_KGDB=y
    CONFIG_KGDB=y
    CONFIG_KGDB_SERIAL_CONSOLE=y
    CONFIG_KGDB_TESTS=y
    CONFIG_KGDB_TESTS_ON_BOOT=y
    CONFIG_KGDB_TESTS_BOOT_STRING="V1F100"
    # CONFIG_STRICT_DEVMEM is not set
    CONFIG_X86_VERBOSE_BOOTUP=y
    CONFIG_EARLY_PRINTK=y
    # CONFIG_DEBUG_STACKOVERFLOW is not set
    # CONFIG_DEBUG_STACK_USAGE is not set
    # CONFIG_DEBUG_PAGEALLOC is not set
    # CONFIG_DEBUG_PER_CPU_MAPS is not set
    # CONFIG_X86_PTDUMP is not set
    # CONFIG_DEBUG_RODATA is not set
    # CONFIG_DEBUG_NX_TEST is not set
    # CONFIG_4KSTACKS is not set
    CONFIG_DOUBLEFAULT=y
    # CONFIG_MMIOTRACE is not set
    CONFIG_IO_DELAY_TYPE_0X80=0
    CONFIG_IO_DELAY_TYPE_0XED=1
    CONFIG_IO_DELAY_TYPE_UDELAY=2
    CONFIG_IO_DELAY_TYPE_NONE=3
    CONFIG_IO_DELAY_0X80=y
    # CONFIG_IO_DELAY_0XED is not set
    # CONFIG_IO_DELAY_UDELAY is not set
    # CONFIG_IO_DELAY_NONE is not set
    CONFIG_DEFAULT_IO_DELAY_TYPE=0
    # CONFIG_CPA_DEBUG is not set
    # CONFIG_OPTIMIZE_INLINING is not set

    #
    # Security options
    #
    # CONFIG_KEYS is not set
    # CONFIG_SECURITY is not set
    # CONFIG_SECURITY_FILE_CAPABILITIES is not set
    CONFIG_CRYPTO=y

    #
    # Crypto core or helper
    #
    CONFIG_CRYPTO_ALGAPI=y
    CONFIG_CRYPTO_HASH=y
    CONFIG_CRYPTO_MANAGER=y
    # CONFIG_CRYPTO_GF128MUL is not set
    # CONFIG_CRYPTO_NULL is not set
    # CONFIG_CRYPTO_CRYPTD is not set
    # CONFIG_CRYPTO_AUTHENC is not set
    # CONFIG_CRYPTO_TEST is not set

    #
    # Authenticated Encryption with Associated Data
    #
    # CONFIG_CRYPTO_CCM is not set
    # CONFIG_CRYPTO_GCM is not set
    # CONFIG_CRYPTO_SEQIV is not set

    #
    # Block modes
    #
    # CONFIG_CRYPTO_CBC is not set
    # CONFIG_CRYPTO_CTR is not set
    # CONFIG_CRYPTO_CTS is not set
    # CONFIG_CRYPTO_ECB is not set
    # CONFIG_CRYPTO_LRW is not set
    # CONFIG_CRYPTO_PCBC is not set
    # CONFIG_CRYPTO_XTS is not set

    #
    # Hash modes
    #
    CONFIG_CRYPTO_HMAC=y
    # CONFIG_CRYPTO_XCBC is not set

    #
    # Digest
    #
    CONFIG_CRYPTO_CRC32C=y
    # CONFIG_CRYPTO_MD4 is not set
    CONFIG_CRYPTO_MD5=y
    # CONFIG_CRYPTO_MICHAEL_MIC is not set
    # CONFIG_CRYPTO_RMD128 is not set
    # CONFIG_CRYPTO_RMD160 is not set
    # CONFIG_CRYPTO_RMD256 is not set
    # CONFIG_CRYPTO_RMD320 is not set
    CONFIG_CRYPTO_SHA1=m
    # CONFIG_CRYPTO_SHA256 is not set
    # CONFIG_CRYPTO_SHA512 is not set
    # CONFIG_CRYPTO_TGR192 is not set
    # CONFIG_CRYPTO_WP512 is not set

    #
    # Ciphers
    #
    # CONFIG_CRYPTO_AES is not set
    # CONFIG_CRYPTO_AES_586 is not set
    # CONFIG_CRYPTO_ANUBIS is not set
    # CONFIG_CRYPTO_ARC4 is not set
    # CONFIG_CRYPTO_BLOWFISH is not set
    # CONFIG_CRYPTO_CAMELLIA is not set
    # CONFIG_CRYPTO_CAST5 is not set
    # CONFIG_CRYPTO_CAST6 is not set
    CONFIG_CRYPTO_DES=m
    # CONFIG_CRYPTO_FCRYPT is not set
    # CONFIG_CRYPTO_KHAZAD is not set
    # CONFIG_CRYPTO_SALSA20 is not set
    # CONFIG_CRYPTO_SALSA20_586 is not set
    # CONFIG_CRYPTO_SEED is not set
    # CONFIG_CRYPTO_SERPENT is not set
    # CONFIG_CRYPTO_TEA is not set
    # CONFIG_CRYPTO_TWOFISH is not set
    # CONFIG_CRYPTO_TWOFISH_586 is not set

    #
    # Compression
    #
    # CONFIG_CRYPTO_DEFLATE is not set
    # CONFIG_CRYPTO_LZO is not set
    CONFIG_CRYPTO_HW=y
    # CONFIG_CRYPTO_DEV_PADLOCK is not set
    # CONFIG_CRYPTO_DEV_GEODE is not set
    # CONFIG_CRYPTO_DEV_HIFN_795X is not set
    CONFIG_HAVE_KVM=y
    CONFIG_VIRTUALIZATION=y
    # CONFIG_KVM is not set
    # CONFIG_VIRTIO_PCI is not set
    # CONFIG_VIRTIO_BALLOON is not set

    #
    # Library routines
    #
    CONFIG_BITREVERSE=y
    CONFIG_GENERIC_FIND_FIRST_BIT=y
    CONFIG_GENERIC_FIND_NEXT_BIT=y
    # CONFIG_CRC_CCITT is not set
    # CONFIG_CRC16 is not set
    CONFIG_CRC_T10DIF=y
    # CONFIG_CRC_ITU_T is not set
    CONFIG_CRC32=y
    # CONFIG_CRC7 is not set
    CONFIG_LIBCRC32C=y
    CONFIG_ZLIB_INFLATE=y
    CONFIG_PLIST=y
    CONFIG_HAS_IOMEM=y
    CONFIG_HAS_IOPORT=y
    CONFIG_HAS_DMA=y
    --
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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    Please read the FAQ at http://www.tux.org/lkml/

  2. Re: Kernel PANIC with 2.6.27-rc6

    On 9/11/08, Jason Wessel wrote:
    > Tej wrote:
    >> observed a panic on 2.6.27-rc6 caused by enabling
    >> "CONFIG_KGDB_TESTS_ON_BOOT" option
    >>
    >> panic logged using serial console and .config are attached.
    >>
    >> Linux version 2.6.27-rc6 (root@luser-desktop) (gcc version 4.2.3

    > (Ubuntu 4.2.3-8
    > [clip]
    >> kgdb: Registered I/O driver kgdbts.
    >> kgdbts:RUN plant and detach test
    >> kgdbts:RUN sw breakpoint test
    >> kgdbts:RUN bad memory access test
    >> kgdbts:RUN singlestep test 1000 iterations
    >> kgdbts:RUN singlestep [0/1000]
    >> kgdbts:RUN singlestep [100/1000]
    >> kgdbts: BP mismatch c0109c02 expected c02ad250

    >
    >
    >
    > So if we break this down into what it means, the kgdb test got an
    > exception and stopped somewhere other than where it placed the
    > breakpoint. In this case 0xc0109c02 which you can see right after the
    > text "BP mismatch".


    i have obsvered this bug from 2.6.27-rc1 to rc7
    however the 2.6.26 was fine


    >
    > This address is in your stack trace below (read on)


    >
    >
    >> ------------[ cut here ]------------
    >> WARNING: at drivers/misc/kgdbts.c:302 check_and_rewind_pc+0xb2/0xe0()
    >> Modules linked in:
    >> Pid: 0, comm: swapper Not tainted 2.6.27-rc6 #16
    >> [] warn_on_slowpath+0x54/0x70
    >> [] ? __call_console_drivers+0x60/0x70
    >> [] ? up+0x2b/0x40
    >> [] ? release_console_sem+0x1a4/0x1c0
    >> [] ? __rmqueue_smallest+0xb7/0x130
    >> [] ? __copy_to_user_ll+0x57/0x60
    >> [] ? probe_kernel_write+0x20/0x40
    >> [] ? kgdbts_break_test+0x0/0x30
    >> [] ? printk+0x1b/0x20
    >> [] ? kgdbts_break_test+0x0/0x30
    >> [] check_and_rewind_pc+0xb2/0xe0
    >> [] ? mwait_idle+0x32/0x40

    >
    >
    > So if you were to do:
    > gdb ./vmlinux
    > i line *0xc0109c02
    >
    > It will print the line of source that caused the problem. It is
    > probably the case that this is a victim however, as this looks like
    > some kind of nmi race condition.
    >
    > Perhaps you could confirm this?


    ok so i did git bisection which pointed:-

    commit 3ed3f06295e69700fa808396f7b350bff2b69de0
    Author: Cyrill Gorcunov
    Date: Wed Jun 4 01:00:47 2008 +0400

    x86: nmi - consolidate nmi_watchdog_default for 32bit mode

    64bit mode bootstrap code does set nmi_watchdog to NMI_NONE
    by default and doing the same on 32bit mode is safe too.
    Such an action saves us from several #ifdef.



    git -bisection log.

    git-bisect start
    # bad: [6e86841d05f371b5b9b86ce76c02aaee83352298] Linux 2.6.27-rc1
    git-bisect bad 6e86841d05f371b5b9b86ce76c02aaee83352298
    # good: [bce7f793daec3e65ec5c5705d2457b81fe7b5725] Linux 2.6.26
    git-bisect good bce7f793daec3e65ec5c5705d2457b81fe7b5725
    # bad: [d20b27478d6ccf7c4c8de4f09db2bdbaec82a6c0] V4L/DVB (8415):
    gspca: Infinite loop in i2c_w() of etoms.
    git-bisect bad d20b27478d6ccf7c4c8de4f09db2bdbaec82a6c0
    # bad: [666484f0250db2e016948d63b3ef33e202e3b8d0] Merge branch
    'core/softirq' of
    git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
    git-bisect bad 666484f0250db2e016948d63b3ef33e202e3b8d0
    # bad: [d59fdcf2ac501de99c3dfb452af5e254d4342886] Merge commit
    'v2.6.26' into x86/core
    git-bisect bad d59fdcf2ac501de99c3dfb452af5e254d4342886
    # good: [3de352bbd86f890dd0c5e1c09a6a1b0b29e0f8ce] Merge branch
    'x86/mpparse' into x86/devel
    git-bisect good 3de352bbd86f890dd0c5e1c09a6a1b0b29e0f8ce
    # bad: [b4df32f4aeef8794d0135fc8dc250acb44cfee60] x86: fix warning in
    e820_reserve_resources with 32bit
    git-bisect bad b4df32f4aeef8794d0135fc8dc250acb44cfee60
    # bad: [7f0be02c5ed1deb04c54c6a17f412e04f417df11] x86: move
    boot_params declaring to setup.c
    git-bisect bad 7f0be02c5ed1deb04c54c6a17f412e04f417df11
    # bad: [4b62ac9a2b859f932afd5625362c927111b7dd9b] Merge branch
    'x86/nmi' into x86/devel
    git-bisect bad 4b62ac9a2b859f932afd5625362c927111b7dd9b
    # bad: [f781b03c4b1c713ac000877c8bbc31fc4164a29b] x86:
    touch_nmi_watchdog(): reset alert counters for supported nmi_watchdog
    modes only
    git-bisect bad f781b03c4b1c713ac000877c8bbc31fc4164a29b
    # good: [96f9dcb10755e96eae706b9e869c0dc25adb3d74] x86: nmi_64.c - use
    for_each_possible_cpu helper
    git-bisect good 96f9dcb10755e96eae706b9e869c0dc25adb3d74
    # good: [ba3a5974239293d921235e6fa82b09b670e674ef] - fix typo in
    include/asm-x86/nmi.h
    git-bisect good ba3a5974239293d921235e6fa82b09b670e674ef
    # bad: [3ed3f06295e69700fa808396f7b350bff2b69de0] x86: nmi -
    consolidate nmi_watchdog_default for 32bit mode
    git-bisect bad 3ed3f06295e69700fa808396f7b350bff2b69de0
    # good: [3d1ba1da2b4ff4ace7801e99fb9a3095b182d847] x86: fix nmi.c build bug
    git-bisect good 3d1ba1da2b4ff4ace7801e99fb9a3095b182d847


    One more point, this bug i have observed on intel VT machine, on
    non-VT machine i couldn't able to trigger this bug.

    cat /proc/cpuinfo | grep vmx

    flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
    pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe lm
    constant_tsc pni monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr
    lahf_lm
    flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
    pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe lm
    constant_tsc pni monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr
    lahf_lm

    HTH







    >
    > My guess would rougly be arch/x86/kernel/processs.c
    >
    > 170 __monitor((void *)&current_thread_info()->flags, 0, 0);
    >
    > And perhaps this is a deference error, or it will be an even less
    > obvious problem where the return from the nmi kgdb uses to sync the
    > processors has created some kind of invalid context. This may or may
    > not be a direct problem with kgdb, but nothing in this area had really
    > changed since the 2.6.26 kernel.
    >
    > Unfortunately I could not reproduce the problem. If you consistently
    > see this with each boot, but you do not see it on the 2.6.27 rc1 or
    > 2.6.26 released kernel for instance, it is definitely worth bisecting,
    > as the problem was caused elsewhere in the kernel.
    >
    >> [] ? kgdbts_break_test+0x0/0x30
    >> [] validate_simple_test+0x21/0xb0
    >> [] run_simple_test+0x107/0x260
    >> [] ? probe_kernel_read+0x20/0x40
    >> [] kgdbts_put_char+0x14/0x20
    >> [] put_packet+0x86/0xe0
    >> [] kgdb_handle_exception+0x2f0/0xd90
    >> [] kgdb_notify+0x58/0x180
    >> [] notifier_call_chain+0x2d/0x60
    >> [] __atomic_notifier_call_chain+0x1c/0x30
    >> [] atomic_notifier_call_chain+0x1a/0x20
    >> [] notify_die+0x2d/0x30
    >> [] die_nmi+0x3a/0x100
    >> [] nmi_watchdog_tick+0x187/0x190
    >> [] do_nmi+0x87/0x2a0
    >> [] nmi_stack_correct+0x26/0x2b
    >> [] ? msr_seek+0xb/0x80
    >> [] ? mwait_idle+0x32/0x40
    >> [] cpu_idle+0x55/0xf0
    >> [] rest_init+0x4e/0x60
    >> [] start_kernel+0x23f/0x2c0
    >> [] ? unknown_bootoption+0x0/0x210
    >> [] __init_begin+0x77/0xb0

    >
    >
    > Jason.
    >

    --
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

  3. Re: Kernel PANIC with 2.6.27-rc6

    [Tej - Thu, Sep 25, 2008 at 08:05:23PM +0530]
    | On 9/11/08, Jason Wessel wrote:
    | > Tej wrote:
    | >> observed a panic on 2.6.27-rc6 caused by enabling
    | >> "CONFIG_KGDB_TESTS_ON_BOOT" option
    | >>
    | >> panic logged using serial console and .config are attached.
    | >>
    | >> Linux version 2.6.27-rc6 (root@luser-desktop) (gcc version 4.2.3
    | > (Ubuntu 4.2.3-8
    | > [clip]
    | >> kgdb: Registered I/O driver kgdbts.
    | >> kgdbts:RUN plant and detach test
    | >> kgdbts:RUN sw breakpoint test
    | >> kgdbts:RUN bad memory access test
    | >> kgdbts:RUN singlestep test 1000 iterations
    | >> kgdbts:RUN singlestep [0/1000]
    | >> kgdbts:RUN singlestep [100/1000]
    | >> kgdbts: BP mismatch c0109c02 expected c02ad250
    | >
    | >
    | >
    | > So if we break this down into what it means, the kgdb test got an
    | > exception and stopped somewhere other than where it placed the
    | > breakpoint. In this case 0xc0109c02 which you can see right after the
    | > text "BP mismatch".
    |
    | i have obsvered this bug from 2.6.27-rc1 to rc7
    | however the 2.6.26 was fine
    |
    |
    | >
    | > This address is in your stack trace below (read on)
    |
    | >
    | >
    | >> ------------[ cut here ]------------
    | >> WARNING: at drivers/misc/kgdbts.c:302 check_and_rewind_pc+0xb2/0xe0()
    | >> Modules linked in:
    | >> Pid: 0, comm: swapper Not tainted 2.6.27-rc6 #16
    | >> [] warn_on_slowpath+0x54/0x70
    | >> [] ? __call_console_drivers+0x60/0x70
    | >> [] ? up+0x2b/0x40
    | >> [] ? release_console_sem+0x1a4/0x1c0
    | >> [] ? __rmqueue_smallest+0xb7/0x130
    | >> [] ? __copy_to_user_ll+0x57/0x60
    | >> [] ? probe_kernel_write+0x20/0x40
    | >> [] ? kgdbts_break_test+0x0/0x30
    | >> [] ? printk+0x1b/0x20
    | >> [] ? kgdbts_break_test+0x0/0x30
    | >> [] check_and_rewind_pc+0xb2/0xe0
    | >> [] ? mwait_idle+0x32/0x40
    | >
    | >
    | > So if you were to do:
    | > gdb ./vmlinux
    | > i line *0xc0109c02
    | >
    | > It will print the line of source that caused the problem. It is
    | > probably the case that this is a victim however, as this looks like
    | > some kind of nmi race condition.
    | >
    | > Perhaps you could confirm this?
    |
    | ok so i did git bisection which pointed:-
    |
    | commit 3ed3f06295e69700fa808396f7b350bff2b69de0
    | Author: Cyrill Gorcunov
    | Date: Wed Jun 4 01:00:47 2008 +0400
    |
    | x86: nmi - consolidate nmi_watchdog_default for 32bit mode
    |
    | 64bit mode bootstrap code does set nmi_watchdog to NMI_NONE
    | by default and doing the same on 32bit mode is safe too.
    | Such an action saves us from several #ifdef.
    |
    |
    |
    | git -bisection log.
    |
    | git-bisect start
    | # bad: [6e86841d05f371b5b9b86ce76c02aaee83352298] Linux 2.6.27-rc1
    | git-bisect bad 6e86841d05f371b5b9b86ce76c02aaee83352298
    | # good: [bce7f793daec3e65ec5c5705d2457b81fe7b5725] Linux 2.6.26
    | git-bisect good bce7f793daec3e65ec5c5705d2457b81fe7b5725
    | # bad: [d20b27478d6ccf7c4c8de4f09db2bdbaec82a6c0] V4L/DVB (8415):
    | gspca: Infinite loop in i2c_w() of etoms.
    | git-bisect bad d20b27478d6ccf7c4c8de4f09db2bdbaec82a6c0
    | # bad: [666484f0250db2e016948d63b3ef33e202e3b8d0] Merge branch
    | 'core/softirq' of
    | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
    | git-bisect bad 666484f0250db2e016948d63b3ef33e202e3b8d0
    | # bad: [d59fdcf2ac501de99c3dfb452af5e254d4342886] Merge commit
    | 'v2.6.26' into x86/core
    | git-bisect bad d59fdcf2ac501de99c3dfb452af5e254d4342886
    | # good: [3de352bbd86f890dd0c5e1c09a6a1b0b29e0f8ce] Merge branch
    | 'x86/mpparse' into x86/devel
    | git-bisect good 3de352bbd86f890dd0c5e1c09a6a1b0b29e0f8ce
    | # bad: [b4df32f4aeef8794d0135fc8dc250acb44cfee60] x86: fix warning in
    | e820_reserve_resources with 32bit
    | git-bisect bad b4df32f4aeef8794d0135fc8dc250acb44cfee60
    | # bad: [7f0be02c5ed1deb04c54c6a17f412e04f417df11] x86: move
    | boot_params declaring to setup.c
    | git-bisect bad 7f0be02c5ed1deb04c54c6a17f412e04f417df11
    | # bad: [4b62ac9a2b859f932afd5625362c927111b7dd9b] Merge branch
    | 'x86/nmi' into x86/devel
    | git-bisect bad 4b62ac9a2b859f932afd5625362c927111b7dd9b
    | # bad: [f781b03c4b1c713ac000877c8bbc31fc4164a29b] x86:
    | touch_nmi_watchdog(): reset alert counters for supported nmi_watchdog
    | modes only
    | git-bisect bad f781b03c4b1c713ac000877c8bbc31fc4164a29b
    | # good: [96f9dcb10755e96eae706b9e869c0dc25adb3d74] x86: nmi_64.c - use
    | for_each_possible_cpu helper
    | git-bisect good 96f9dcb10755e96eae706b9e869c0dc25adb3d74
    | # good: [ba3a5974239293d921235e6fa82b09b670e674ef] - fix typo in
    | include/asm-x86/nmi.h
    | git-bisect good ba3a5974239293d921235e6fa82b09b670e674ef
    | # bad: [3ed3f06295e69700fa808396f7b350bff2b69de0] x86: nmi -
    | consolidate nmi_watchdog_default for 32bit mode
    | git-bisect bad 3ed3f06295e69700fa808396f7b350bff2b69de0
    | # good: [3d1ba1da2b4ff4ace7801e99fb9a3095b182d847] x86: fix nmi.c build bug
    | git-bisect good 3d1ba1da2b4ff4ace7801e99fb9a3095b182d847
    |
    |
    | One more point, this bug i have observed on intel VT machine, on
    | non-VT machine i couldn't able to trigger this bug.
    |
    | cat /proc/cpuinfo | grep vmx
    |
    | flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
    | pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe lm
    | constant_tsc pni monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr
    | lahf_lm
    | flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
    | pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe lm
    | constant_tsc pni monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr
    | lahf_lm
    |
    | HTH
    |
    |
    |
    |
    |
    |
    |
    | >
    | > My guess would rougly be arch/x86/kernel/processs.c
    | >
    | > 170 __monitor((void *)&current_thread_info()->flags, 0, 0);
    | >
    | > And perhaps this is a deference error, or it will be an even less
    | > obvious problem where the return from the nmi kgdb uses to sync the
    | > processors has created some kind of invalid context. This may or may
    | > not be a direct problem with kgdb, but nothing in this area had really
    | > changed since the 2.6.26 kernel.
    | >
    | > Unfortunately I could not reproduce the problem. If you consistently
    | > see this with each boot, but you do not see it on the 2.6.27 rc1 or
    | > 2.6.26 released kernel for instance, it is definitely worth bisecting,
    | > as the problem was caused elsewhere in the kernel.
    | >
    | >> [] ? kgdbts_break_test+0x0/0x30
    | >> [] validate_simple_test+0x21/0xb0
    | >> [] run_simple_test+0x107/0x260
    | >> [] ? probe_kernel_read+0x20/0x40
    | >> [] kgdbts_put_char+0x14/0x20
    | >> [] put_packet+0x86/0xe0
    | >> [] kgdb_handle_exception+0x2f0/0xd90
    | >> [] kgdb_notify+0x58/0x180
    | >> [] notifier_call_chain+0x2d/0x60
    | >> [] __atomic_notifier_call_chain+0x1c/0x30
    | >> [] atomic_notifier_call_chain+0x1a/0x20
    | >> [] notify_die+0x2d/0x30
    | >> [] die_nmi+0x3a/0x100
    | >> [] nmi_watchdog_tick+0x187/0x190
    | >> [] do_nmi+0x87/0x2a0
    | >> [] nmi_stack_correct+0x26/0x2b
    | >> [] ? msr_seek+0xb/0x80
    | >> [] ? mwait_idle+0x32/0x40
    | >> [] cpu_idle+0x55/0xf0
    | >> [] rest_init+0x4e/0x60
    | >> [] start_kernel+0x23f/0x2c0
    | >> [] ? unknown_bootoption+0x0/0x210
    | >> [] __init_begin+0x77/0xb0
    | >
    | >
    | > Jason.
    | >
    | --
    | To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    | the body of a message to majordomo@vger.kernel.org
    | More majordomo info at http://vger.kernel.org/majordomo-info.html
    | Please read the FAQ at http://www.tux.org/lkml/
    |

    Thanks for feedback, Tej! Will check this commit.

    - Cyrill -
    --
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    the body of a message to majordomo@vger.kernel.org
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    Please read the FAQ at http://www.tux.org/lkml/

  4. Re: Kernel PANIC with 2.6.27-rc6

    [Cyrill Gorcunov - Thu, Sep 25, 2008 at 06:56:35PM +0400]
    | [Tej - Thu, Sep 25, 2008 at 08:05:23PM +0530]
    | | On 9/11/08, Jason Wessel wrote:
    | | > Tej wrote:
    | | >> observed a panic on 2.6.27-rc6 caused by enabling
    | | >> "CONFIG_KGDB_TESTS_ON_BOOT" option
    | | >>
    | | >> panic logged using serial console and .config are attached.
    | | >>
    | | >> Linux version 2.6.27-rc6 (root@luser-desktop) (gcc version 4.2.3
    | | > (Ubuntu 4.2.3-8
    | | > [clip]
    | | >> kgdb: Registered I/O driver kgdbts.
    | | >> kgdbts:RUN plant and detach test
    | | >> kgdbts:RUN sw breakpoint test
    | | >> kgdbts:RUN bad memory access test
    | | >> kgdbts:RUN singlestep test 1000 iterations
    | | >> kgdbts:RUN singlestep [0/1000]
    | | >> kgdbts:RUN singlestep [100/1000]
    | | >> kgdbts: BP mismatch c0109c02 expected c02ad250
    | | >
    | | >
    | | >
    | | > So if we break this down into what it means, the kgdb test got an
    | | > exception and stopped somewhere other than where it placed the
    | | > breakpoint. In this case 0xc0109c02 which you can see right after the
    | | > text "BP mismatch".
    | |
    | | i have obsvered this bug from 2.6.27-rc1 to rc7
    | | however the 2.6.26 was fine
    | |
    | |
    | | >
    | | > This address is in your stack trace below (read on)
    | |
    | | >
    | | >
    | | >> ------------[ cut here ]------------
    | | >> WARNING: at drivers/misc/kgdbts.c:302 check_and_rewind_pc+0xb2/0xe0()
    | | >> Modules linked in:
    | | >> Pid: 0, comm: swapper Not tainted 2.6.27-rc6 #16
    | | >> [] warn_on_slowpath+0x54/0x70
    | | >> [] ? __call_console_drivers+0x60/0x70
    | | >> [] ? up+0x2b/0x40
    | | >> [] ? release_console_sem+0x1a4/0x1c0
    | | >> [] ? __rmqueue_smallest+0xb7/0x130
    | | >> [] ? __copy_to_user_ll+0x57/0x60
    | | >> [] ? probe_kernel_write+0x20/0x40
    | | >> [] ? kgdbts_break_test+0x0/0x30
    | | >> [] ? printk+0x1b/0x20
    | | >> [] ? kgdbts_break_test+0x0/0x30
    | | >> [] check_and_rewind_pc+0xb2/0xe0
    | | >> [] ? mwait_idle+0x32/0x40
    | | >
    | | >
    | | > So if you were to do:
    | | > gdb ./vmlinux
    | | > i line *0xc0109c02
    | | >
    | | > It will print the line of source that caused the problem. It is
    | | > probably the case that this is a victim however, as this looks like
    | | > some kind of nmi race condition.
    | | >
    | | > Perhaps you could confirm this?
    | |
    | | ok so i did git bisection which pointed:-
    | |
    | | commit 3ed3f06295e69700fa808396f7b350bff2b69de0
    | | Author: Cyrill Gorcunov
    | | Date: Wed Jun 4 01:00:47 2008 +0400
    | |
    | | x86: nmi - consolidate nmi_watchdog_default for 32bit mode
    | |
    | | 64bit mode bootstrap code does set nmi_watchdog to NMI_NONE
    | | by default and doing the same on 32bit mode is safe too.
    | | Such an action saves us from several #ifdef.
    | |
    | |
    | |
    | | git -bisection log.
    | |
    | | git-bisect start
    | | # bad: [6e86841d05f371b5b9b86ce76c02aaee83352298] Linux 2.6.27-rc1
    | | git-bisect bad 6e86841d05f371b5b9b86ce76c02aaee83352298
    | | # good: [bce7f793daec3e65ec5c5705d2457b81fe7b5725] Linux 2.6.26
    | | git-bisect good bce7f793daec3e65ec5c5705d2457b81fe7b5725
    | | # bad: [d20b27478d6ccf7c4c8de4f09db2bdbaec82a6c0] V4L/DVB (8415):
    | | gspca: Infinite loop in i2c_w() of etoms.
    | | git-bisect bad d20b27478d6ccf7c4c8de4f09db2bdbaec82a6c0
    | | # bad: [666484f0250db2e016948d63b3ef33e202e3b8d0] Merge branch
    | | 'core/softirq' of
    | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
    | | git-bisect bad 666484f0250db2e016948d63b3ef33e202e3b8d0
    | | # bad: [d59fdcf2ac501de99c3dfb452af5e254d4342886] Merge commit
    | | 'v2.6.26' into x86/core
    | | git-bisect bad d59fdcf2ac501de99c3dfb452af5e254d4342886
    | | # good: [3de352bbd86f890dd0c5e1c09a6a1b0b29e0f8ce] Merge branch
    | | 'x86/mpparse' into x86/devel
    | | git-bisect good 3de352bbd86f890dd0c5e1c09a6a1b0b29e0f8ce
    | | # bad: [b4df32f4aeef8794d0135fc8dc250acb44cfee60] x86: fix warning in
    | | e820_reserve_resources with 32bit
    | | git-bisect bad b4df32f4aeef8794d0135fc8dc250acb44cfee60
    | | # bad: [7f0be02c5ed1deb04c54c6a17f412e04f417df11] x86: move
    | | boot_params declaring to setup.c
    | | git-bisect bad 7f0be02c5ed1deb04c54c6a17f412e04f417df11
    | | # bad: [4b62ac9a2b859f932afd5625362c927111b7dd9b] Merge branch
    | | 'x86/nmi' into x86/devel
    | | git-bisect bad 4b62ac9a2b859f932afd5625362c927111b7dd9b
    | | # bad: [f781b03c4b1c713ac000877c8bbc31fc4164a29b] x86:
    | | touch_nmi_watchdog(): reset alert counters for supported nmi_watchdog
    | | modes only
    | | git-bisect bad f781b03c4b1c713ac000877c8bbc31fc4164a29b
    | | # good: [96f9dcb10755e96eae706b9e869c0dc25adb3d74] x86: nmi_64.c - use
    | | for_each_possible_cpu helper
    | | git-bisect good 96f9dcb10755e96eae706b9e869c0dc25adb3d74
    | | # good: [ba3a5974239293d921235e6fa82b09b670e674ef] - fix typo in
    | | include/asm-x86/nmi.h
    | | git-bisect good ba3a5974239293d921235e6fa82b09b670e674ef
    | | # bad: [3ed3f06295e69700fa808396f7b350bff2b69de0] x86: nmi -
    | | consolidate nmi_watchdog_default for 32bit mode
    | | git-bisect bad 3ed3f06295e69700fa808396f7b350bff2b69de0
    | | # good: [3d1ba1da2b4ff4ace7801e99fb9a3095b182d847] x86: fix nmi.c build bug
    | | git-bisect good 3d1ba1da2b4ff4ace7801e99fb9a3095b182d847
    | |
    | |
    | | One more point, this bug i have observed on intel VT machine, on
    | | non-VT machine i couldn't able to trigger this bug.
    | |
    | | cat /proc/cpuinfo | grep vmx
    | |
    | | flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
    | | pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe lm
    | | constant_tsc pni monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr
    | | lahf_lm
    | | flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
    | | pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe lm
    | | constant_tsc pni monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr
    | | lahf_lm
    | |
    | | HTH
    | |
    | |
    | |
    | |
    | |
    | |
    | |
    | | >
    | | > My guess would rougly be arch/x86/kernel/processs.c
    | | >
    | | > 170 __monitor((void *)&current_thread_info()->flags, 0, 0);
    | | >
    | | > And perhaps this is a deference error, or it will be an even less
    | | > obvious problem where the return from the nmi kgdb uses to sync the
    | | > processors has created some kind of invalid context. This may or may
    | | > not be a direct problem with kgdb, but nothing in this area had really
    | | > changed since the 2.6.26 kernel.
    | | >
    | | > Unfortunately I could not reproduce the problem. If you consistently
    | | > see this with each boot, but you do not see it on the 2.6.27 rc1 or
    | | > 2.6.26 released kernel for instance, it is definitely worth bisecting,
    | | > as the problem was caused elsewhere in the kernel.
    | | >
    | | >> [] ? kgdbts_break_test+0x0/0x30
    | | >> [] validate_simple_test+0x21/0xb0
    | | >> [] run_simple_test+0x107/0x260
    | | >> [] ? probe_kernel_read+0x20/0x40
    | | >> [] kgdbts_put_char+0x14/0x20
    | | >> [] put_packet+0x86/0xe0
    | | >> [] kgdb_handle_exception+0x2f0/0xd90
    | | >> [] kgdb_notify+0x58/0x180
    | | >> [] notifier_call_chain+0x2d/0x60
    | | >> [] __atomic_notifier_call_chain+0x1c/0x30
    | | >> [] atomic_notifier_call_chain+0x1a/0x20
    | | >> [] notify_die+0x2d/0x30
    | | >> [] die_nmi+0x3a/0x100
    | | >> [] nmi_watchdog_tick+0x187/0x190
    | | >> [] do_nmi+0x87/0x2a0
    | | >> [] nmi_stack_correct+0x26/0x2b
    | | >> [] ? msr_seek+0xb/0x80
    | | >> [] ? mwait_idle+0x32/0x40
    | | >> [] cpu_idle+0x55/0xf0
    | | >> [] rest_init+0x4e/0x60
    | | >> [] start_kernel+0x23f/0x2c0
    | | >> [] ? unknown_bootoption+0x0/0x210
    | | >> [] __init_begin+0x77/0xb0
    | | >
    | | >
    | | > Jason.
    | | >
    | | --
    | | To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    | | the body of a message to majordomo@vger.kernel.org
    | | More majordomo info at http://vger.kernel.org/majordomo-info.html
    | | Please read the FAQ at http://www.tux.org/lkml/
    | |
    |
    | Thanks for feedback, Tej! Will check this commit.
    |
    | - Cyrill -
    |

    If assume that git bisect is right - it's hardly possible
    that proc_nmi_enabled() related changes introduced this
    error (ie this commit) - kgdb seems to be not
    touching /proc/sys/kernel/nmi while doing self-tests.

    - Cyrill -
    --
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  5. Re: Kernel PANIC with 2.6.27-rc6

    On 9/25/08, Cyrill Gorcunov wrote:
    > [Cyrill Gorcunov - Thu, Sep 25, 2008 at 06:56:35PM +0400]
    > | [Tej - Thu, Sep 25, 2008 at 08:05:23PM +0530]
    > | | On 9/11/08, Jason Wessel wrote:
    > | | > Tej wrote:
    > | | >> observed a panic on 2.6.27-rc6 caused by enabling
    > | | >> "CONFIG_KGDB_TESTS_ON_BOOT" option
    > | | >>
    > | | >> panic logged using serial console and .config are attached.
    > | | >>
    > | | >> Linux version 2.6.27-rc6 (root@luser-desktop) (gcc version 4.2.3
    > | | > (Ubuntu 4.2.3-8
    > | | > [clip]
    > | | >> kgdb: Registered I/O driver kgdbts.
    > | | >> kgdbts:RUN plant and detach test
    > | | >> kgdbts:RUN sw breakpoint test
    > | | >> kgdbts:RUN bad memory access test
    > | | >> kgdbts:RUN singlestep test 1000 iterations
    > | | >> kgdbts:RUN singlestep [0/1000]
    > | | >> kgdbts:RUN singlestep [100/1000]
    > | | >> kgdbts: BP mismatch c0109c02 expected c02ad250
    > | | >
    > | | >
    > | | >
    > | | > So if we break this down into what it means, the kgdb test got an
    > | | > exception and stopped somewhere other than where it placed the
    > | | > breakpoint. In this case 0xc0109c02 which you can see right after the
    > | | > text "BP mismatch".
    > | |
    > | | i have obsvered this bug from 2.6.27-rc1 to rc7
    > | | however the 2.6.26 was fine
    > | |
    > | |
    > | | >
    > | | > This address is in your stack trace below (read on)
    > | |
    > | | >
    > | | >
    > | | >> ------------[ cut here ]------------
    > | | >> WARNING: at drivers/misc/kgdbts.c:302 check_and_rewind_pc+0xb2/0xe0()
    > | | >> Modules linked in:
    > | | >> Pid: 0, comm: swapper Not tainted 2.6.27-rc6 #16
    > | | >> [] warn_on_slowpath+0x54/0x70
    > | | >> [] ? __call_console_drivers+0x60/0x70
    > | | >> [] ? up+0x2b/0x40
    > | | >> [] ? release_console_sem+0x1a4/0x1c0
    > | | >> [] ? __rmqueue_smallest+0xb7/0x130
    > | | >> [] ? __copy_to_user_ll+0x57/0x60
    > | | >> [] ? probe_kernel_write+0x20/0x40
    > | | >> [] ? kgdbts_break_test+0x0/0x30
    > | | >> [] ? printk+0x1b/0x20
    > | | >> [] ? kgdbts_break_test+0x0/0x30
    > | | >> [] check_and_rewind_pc+0xb2/0xe0
    > | | >> [] ? mwait_idle+0x32/0x40
    > | | >
    > | | >
    > | | > So if you were to do:
    > | | > gdb ./vmlinux
    > | | > i line *0xc0109c02
    > | | >
    > | | > It will print the line of source that caused the problem. It is
    > | | > probably the case that this is a victim however, as this looks like
    > | | > some kind of nmi race condition.
    > | | >
    > | | > Perhaps you could confirm this?
    > | |
    > | | ok so i did git bisection which pointed:-
    > | |
    > | | commit 3ed3f06295e69700fa808396f7b350bff2b69de0
    > | | Author: Cyrill Gorcunov
    > | | Date: Wed Jun 4 01:00:47 2008 +0400
    > | |
    > | | x86: nmi - consolidate nmi_watchdog_default for 32bit mode
    > | |
    > | | 64bit mode bootstrap code does set nmi_watchdog to NMI_NONE
    > | | by default and doing the same on 32bit mode is safe too.
    > | | Such an action saves us from several #ifdef.
    > | |
    > | |
    > | |
    > | | git -bisection log.
    > | |
    > | | git-bisect start
    > | | # bad: [6e86841d05f371b5b9b86ce76c02aaee83352298] Linux 2.6.27-rc1
    > | | git-bisect bad 6e86841d05f371b5b9b86ce76c02aaee83352298
    > | | # good: [bce7f793daec3e65ec5c5705d2457b81fe7b5725] Linux 2.6.26
    > | | git-bisect good bce7f793daec3e65ec5c5705d2457b81fe7b5725
    > | | # bad: [d20b27478d6ccf7c4c8de4f09db2bdbaec82a6c0] V4L/DVB (8415):
    > | | gspca: Infinite loop in i2c_w() of etoms.
    > | | git-bisect bad d20b27478d6ccf7c4c8de4f09db2bdbaec82a6c0
    > | | # bad: [666484f0250db2e016948d63b3ef33e202e3b8d0] Merge branch
    > | | 'core/softirq' of
    > | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
    > | | git-bisect bad 666484f0250db2e016948d63b3ef33e202e3b8d0
    > | | # bad: [d59fdcf2ac501de99c3dfb452af5e254d4342886] Merge commit
    > | | 'v2.6.26' into x86/core
    > | | git-bisect bad d59fdcf2ac501de99c3dfb452af5e254d4342886
    > | | # good: [3de352bbd86f890dd0c5e1c09a6a1b0b29e0f8ce] Merge branch
    > | | 'x86/mpparse' into x86/devel
    > | | git-bisect good 3de352bbd86f890dd0c5e1c09a6a1b0b29e0f8ce
    > | | # bad: [b4df32f4aeef8794d0135fc8dc250acb44cfee60] x86: fix warning in
    > | | e820_reserve_resources with 32bit
    > | | git-bisect bad b4df32f4aeef8794d0135fc8dc250acb44cfee60
    > | | # bad: [7f0be02c5ed1deb04c54c6a17f412e04f417df11] x86: move
    > | | boot_params declaring to setup.c
    > | | git-bisect bad 7f0be02c5ed1deb04c54c6a17f412e04f417df11
    > | | # bad: [4b62ac9a2b859f932afd5625362c927111b7dd9b] Merge branch
    > | | 'x86/nmi' into x86/devel
    > | | git-bisect bad 4b62ac9a2b859f932afd5625362c927111b7dd9b
    > | | # bad: [f781b03c4b1c713ac000877c8bbc31fc4164a29b] x86:
    > | | touch_nmi_watchdog(): reset alert counters for supported nmi_watchdog
    > | | modes only
    > | | git-bisect bad f781b03c4b1c713ac000877c8bbc31fc4164a29b
    > | | # good: [96f9dcb10755e96eae706b9e869c0dc25adb3d74] x86: nmi_64.c - use
    > | | for_each_possible_cpu helper
    > | | git-bisect good 96f9dcb10755e96eae706b9e869c0dc25adb3d74
    > | | # good: [ba3a5974239293d921235e6fa82b09b670e674ef] - fix typo in
    > | | include/asm-x86/nmi.h
    > | | git-bisect good ba3a5974239293d921235e6fa82b09b670e674ef
    > | | # bad: [3ed3f06295e69700fa808396f7b350bff2b69de0] x86: nmi -
    > | | consolidate nmi_watchdog_default for 32bit mode
    > | | git-bisect bad 3ed3f06295e69700fa808396f7b350bff2b69de0
    > | | # good: [3d1ba1da2b4ff4ace7801e99fb9a3095b182d847] x86: fix nmi.c build
    > bug
    > | | git-bisect good 3d1ba1da2b4ff4ace7801e99fb9a3095b182d847
    > | |
    > | |
    > | | One more point, this bug i have observed on intel VT machine, on
    > | | non-VT machine i couldn't able to trigger this bug.
    > | |
    > | | cat /proc/cpuinfo | grep vmx
    > | |
    > | | flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
    > | | pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe lm
    > | | constant_tsc pni monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr
    > | | lahf_lm
    > | | flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
    > | | pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe lm
    > | | constant_tsc pni monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr
    > | | lahf_lm
    > | |
    > | | HTH
    > | |
    > | |
    > | |
    > | |
    > | |
    > | |
    > | |
    > | | >
    > | | > My guess would rougly be arch/x86/kernel/processs.c
    > | | >
    > | | > 170 __monitor((void *)&current_thread_info()->flags, 0, 0);
    > | | >
    > | | > And perhaps this is a deference error, or it will be an even less
    > | | > obvious problem where the return from the nmi kgdb uses to sync the
    > | | > processors has created some kind of invalid context. This may or may
    > | | > not be a direct problem with kgdb, but nothing in this area had really
    > | | > changed since the 2.6.26 kernel.
    > | | >
    > | | > Unfortunately I could not reproduce the problem. If you consistently
    > | | > see this with each boot, but you do not see it on the 2.6.27 rc1 or
    > | | > 2.6.26 released kernel for instance, it is definitely worth bisecting,
    > | | > as the problem was caused elsewhere in the kernel.
    > | | >
    > | | >> [] ? kgdbts_break_test+0x0/0x30
    > | | >> [] validate_simple_test+0x21/0xb0
    > | | >> [] run_simple_test+0x107/0x260
    > | | >> [] ? probe_kernel_read+0x20/0x40
    > | | >> [] kgdbts_put_char+0x14/0x20
    > | | >> [] put_packet+0x86/0xe0
    > | | >> [] kgdb_handle_exception+0x2f0/0xd90
    > | | >> [] kgdb_notify+0x58/0x180
    > | | >> [] notifier_call_chain+0x2d/0x60
    > | | >> [] __atomic_notifier_call_chain+0x1c/0x30
    > | | >> [] atomic_notifier_call_chain+0x1a/0x20
    > | | >> [] notify_die+0x2d/0x30
    > | | >> [] die_nmi+0x3a/0x100
    > | | >> [] nmi_watchdog_tick+0x187/0x190
    > | | >> [] do_nmi+0x87/0x2a0
    > | | >> [] nmi_stack_correct+0x26/0x2b
    > | | >> [] ? msr_seek+0xb/0x80
    > | | >> [] ? mwait_idle+0x32/0x40
    > | | >> [] cpu_idle+0x55/0xf0
    > | | >> [] rest_init+0x4e/0x60
    > | | >> [] start_kernel+0x23f/0x2c0
    > | | >> [] ? unknown_bootoption+0x0/0x210
    > | | >> [] __init_begin+0x77/0xb0
    > | | >
    > | | >
    > | | > Jason.
    > | | >
    > | | --
    > | | To unsubscribe from this list: send the line "unsubscribe linux-kernel"
    > in
    > | | the body of a message to majordomo@vger.kernel.org
    > | | More majordomo info at http://vger.kernel.org/majordomo-info.html
    > | | Please read the FAQ at http://www.tux.org/lkml/
    > | |
    > |
    > | Thanks for feedback, Tej! Will check this commit.
    > |
    > | - Cyrill -
    > |
    >
    > If assume that git bisect is right - it's hardly possible


    i have bisected it twice n jason mentioned that it looks like some
    kind of nmi race condition.

    but i will bisect it again in rc7 and let you know.

    > that proc_nmi_enabled() related changes introduced this
    > error (ie this commit) - kgdb seems to be not
    > touching /proc/sys/kernel/nmi while doing self-tests.
    >
    > - Cyrill -
    >

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  6. Re: Kernel PANIC with 2.6.27-rc6

    [Tej - Fri, Sep 26, 2008 at 12:04:30AM +0530]
    ....
    | >
    | > If assume that git bisect is right - it's hardly possible
    |
    | i have bisected it twice n jason mentioned that it looks like some
    | kind of nmi race condition.
    |
    | but i will bisect it again in rc7 and let you know.
    |
    | > that proc_nmi_enabled() related changes introduced this
    | > error (ie this commit) - kgdb seems to be not
    | > touching /proc/sys/kernel/nmi while doing self-tests.
    | >
    | > - Cyrill -
    | >
    |

    There was a race in nmi code indeed which was fixed recently in
    -tip tree but it was leading to use unitialized vars. So give
    me some time to digg a bit. I'll do it tomorrow and write you.
    Thanks a lot for pointing out this problem!

    - Cyrill -
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  7. Re: Kernel PANIC with 2.6.27-rc6

    [Tej - Fri, Sep 26, 2008 at 12:04:30AM +0530]
    ....

    Btw Tej, could you please apply this patch
    and check if it help.

    http://lkml.org/lkml/2008/9/22/250

    Aristeu Rozanski fixed one race window which take
    place on unpredicted nmi's.

    - Cyrill -
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  8. Re: Kernel PANIC with 2.6.27-rc6

    [Cyrill Gorcunov - Thu, Sep 25, 2008 at 11:39:56PM +0400]
    | [Tej - Fri, Sep 26, 2008 at 12:04:30AM +0530]
    | ...
    |
    | Btw Tej, could you please apply this patch
    | and check if it help.
    |
    | http://lkml.org/lkml/2008/9/22/250
    |
    | Aristeu Rozanski fixed one race window which take
    | place on unpredicted nmi's.
    |
    | - Cyrill -

    Btw Tej, could you post boot log if kernel were started as

    root=/dev/sda1 ro debug apic=debug kgdbts=V2 splash console=tty0 console=ttyS0,

    Ie your original option "quiet" is to be replace with "debug apic=debug kgdbts=V2".
    Thanks!

    - Cyrill -
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  9. Re: Kernel PANIC with 2.6.27-rc6

    On 9/26/08, Cyrill Gorcunov wrote:
    > [Cyrill Gorcunov - Thu, Sep 25, 2008 at 11:39:56PM +0400]
    > | [Tej - Fri, Sep 26, 2008 at 12:04:30AM +0530]
    > | ...
    > |
    > | Btw Tej, could you please apply this patch
    > | and check if it help.
    > |
    > | http://lkml.org/lkml/2008/9/22/250
    > |
    > | Aristeu Rozanski fixed one race window which take
    > | place on unpredicted nmi's.
    > |
    > | - Cyrill -
    >
    > Btw Tej, could you post boot log if kernel were started as
    >
    > root=/dev/sda1 ro debug apic=debug kgdbts=V2 splash console=tty0
    > console=ttyS0,

    sorry for this long pause.

    machine boots fine with the options specified, and logs are collected
    as follows.
    some warning related to sysctl table checking, but its related to
    libvirtd (KVM) at the end.

    7b0084f7ffff0000ffff0000#2f
    Singlestep stopped at IP: c02a5e91
    get8: $Z0,c02a5e90,1#3c
    put8: $OK#9a
    get9: $c#63
    kgdbts: breakpoint complete
    put9: $T05thread:0000000000000001;#a7
    get10: $g#67
    put10: $105f6dc08600000000c01001e403000068672ac04c1f84f70 0000000e8030000915e2ac04602000060000000680000007b0 084f77b0011c0ffff0000ffff0000#0a
    Stopped at IP: c02a5e91
    get11: $G105f6dc08600000000c01001e4030000000000004c1f84f7 00000000e8030000905e2ac04602000060000000680000007b 0084f77b0011c0ffff0000ffff0000#cf
    put11: $OK#9a
    get12: $D#44
    put12: $OK#9a
    kgdbts: breakpoint complete
    get0: $?#3f
    put0: $S05#b8
    get1: $Z0,c02a5e90,1#3c
    put1: $OK#9a
    get2: $c#63
    put2: $T05thread:0000000000000001;#a7
    get3: $g#67
    put3: $000000000000000084030000e503000063672ac04c1f84f70 0000000e8030000915e2ac04602000060000000680000007b0 084f77b0011c0ffff0000ffff0000#29
    Stopped at IP: c02a5e91
    get4: $G000000000000000084030000e5030000000000004c1f84f7 00000000e8030000905e2ac04602000060000000680000007b 0084f77b0011c0ffff0000ffff0000#f3
    put4: $OK#9a
    get5: $z0,c02a5e90,1#5c
    put5: $OK#9a
    get6: $s#73
    put6: $T05thread:0000000000000001;#a7
    get7: $g#67
    put7: $000000000000000084030000e50300004c1f84f74c1f84f70 0000000e8030000915e2ac04603000060000000680000007b0 000007b0084f7ffff0000ffff0000#30
    Singlestep stopped at IP: c02a5e91
    get8: $Z0,c02a5e90,1#3c
    put8: $OK#9a
    get9: $c#63
    kgdbts: breakpoint complete
    put9: $T05thread:0000000000000001;#a7
    get10: $g#67
    put10: $105f6dc08600000000c01001e503000068672ac04c1f84f70 0000000e8030000915e2ac04602000060000000680000007b0 084f77b0011c0ffff0000ffff0000#0b
    Stopped at IP: c02a5e91
    get11: $G105f6dc08600000000c01001e5030000000000004c1f84f7 00000000e8030000905e2ac04602000060000000680000007b 0084f77b0011c0ffff0000ffff0000#d0
    put11: $OK#9a
    get12: $D#44
    put12: $OK#9a
    kgdbts: breakpoint complete
    get0: $?#3f
    put0: $S05#b8
    get1: $Z0,c02a5e90,1#3c
    put1: $OK#9a
    get2: $c#63
    put2: $T05thread:0000000000000001;#a7
    get3: $g#67
    put3: $000000000000000084030000e603000063672ac04c1f84f70 0000000e8030000915e2ac04602000060000000680000007b0 084f77b0011c0ffff0000ffff0000#2a
    Stopped at IP: c02a5e91
    get4: $G000000000000000084030000e6030000000000004c1f84f7 00000000e8030000905e2ac04602000060000000680000007b 0084f77b0011c0ffff0000ffff0000#f4
    put4: $OK#9a
    get5: $z0,c02a5e90,1#5c
    put5: $OK#9a
    get6: $s#73
    put6: $T05thread:0000000000000001;#a7
    get7: $g#67
    put7: $000000000000000084030000e60300004c1f84f74c1f84f70 0000000e8030000915e2ac04603000060000000680000007b0 000007b0084f7ffff0000ffff0000#31
    Singlestep stopped at IP: c02a5e91
    get8: $Z0,c02a5e90,1#3c
    put8: $OK#9a
    get9: $c#63
    kgdbts: breakpoint complete
    put9: $T05thread:0000000000000001;#a7
    get10: $g#67
    put10: $105f6dc08600000000c01001e603000068672ac04c1f84f70 0000000e8030000915e2ac04602000060000000680000007b0 084f77b0011c0ffff0000ffff0000#0c
    Stopped at IP: c02a5e91
    get11: $G105f6dc08600000000c01001e6030000000000004c1f84f7 00000000e8030000905e2ac04602000060000000680000007b 0084f77b0011c0ffff0000ffff0000#d1
    put11: $OK#9a
    get12: $D#44
    put12: $OK#9a
    kgdbts: breakpoint complete
    get0: $?#3f
    put0: $S05#b8
    get1: $Z0,c02a5e90,1#3c
    put1: $OK#9a
    get2: $c#63
    put2: $T05thread:0000000000000001;#a7
    get3: $g#67
    put3: $000000000000000084030000e703000063672ac04c1f84f70 0000000e8030000915e2ac04602000060000000680000007b0 084f77b0011c0ffff0000ffff0000#2b
    Stopped at IP: c02a5e91
    get4: $G000000000000000084030000e7030000000000004c1f84f7 00000000e8030000905e2ac04602000060000000680000007b 0084f77b0011c0ffff0000ffff0000#f5
    put4: $OK#9a
    get5: $z0,c02a5e90,1#5c
    put5: $OK#9a
    get6: $s#73
    put6: $T05thread:0000000000000001;#a7
    get7: $g#67
    put7: $000000000000000084030000e70300004c1f84f74c1f84f70 0000000e8030000915e2ac04603000060000000680000007b0 000007b0084f7ffff0000ffff0000#32
    Singlestep stopped at IP: c02a5e91
    get8: $Z0,c02a5e90,1#3c
    put8: $OK#9a
    get9: $c#63
    kgdbts: breakpoint complete
    put9: $T05thread:0000000000000001;#a7
    get10: $g#67
    put10: $105f6dc08600000000c01001e703000068672ac04c1f84f70 0000000e8030000915e2ac04602000060000000680000007b0 084f77b0011c0ffff0000ffff0000#0d
    Stopped at IP: c02a5e91
    get11: $G105f6dc08600000000c01001e7030000000000004c1f84f7 00000000e8030000905e2ac04602000060000000680000007b 0084f77b0011c0ffff0000ffff0000#d2
    put11: $OK#9a
    get12: $D#44
    put12: $OK#9a
    kgdbts: breakpoint complete
    kgdbts:RUN hw breakpoint test
    get0: $?#3f
    put0: $S05#b8
    get1: $Z1,c02a5e90,1#3d
    put1: $OK#9a
    get2: $c#63
    put2: $T05thread:0000000000000001;#a7
    get3: $g#67
    put3: $000000000000000046000000010000007a602ac01c1f84f70 0000000e8030000905e2ac00202000060000000680000007b0 000007b000000ffff0000ffff0000#86
    Stopped at IP: c02a5e90
    get4: $G00000000000000004600000001000000000000001c1f84f7 00000000e8030000905e2ac00202000060000000680000007b 0000007b000000ffff0000ffff0000#29
    put4: $OK#9a
    get5: $z1,c02a5e90,1#5d
    put5: $OK#9a
    get6: $D#44
    put6: $OK#9a
    kgdbts: breakpoint complete
    get7: $D#44
    put7: $OK#9a
    kgdbts:RUN hw write breakpoint test
    get0: $?#3f
    put0: $S05#b8
    get1: $Z2,c071955c,1#16
    put1: $OK#9a
    get2: $c#63
    put2: $T05thread:0000000000000001;#a7
    get3: $g#67
    put3: $00000000000000004600000001000000c8e658c01c1f84f70 0000000e80300009f5f2ac00202000060000000680000007b0 011c07b00ffffffff0000ffff0000#dc
    Stopped at IP: c02a5f9f
    get4: $G00000000000000004600000001000000000000001c1f84f7 00000000e80300009f5f2ac00202000060000000680000007b 0011c07b00ffffffff0000ffff0000#6d
    put4: $OK#9a
    get5: $z2,c071955c,1#36
    put5: $OK#9a
    get6: $D#44
    put6: $OK#9a
    get7: $D#44
    put7: $OK#9a
    kgdbts:RUN access write breakpoint test
    get0: $?#3f
    put0: $S05#b8
    get1: $Z4,c071955c,1#18
    put1: $OK#9a
    get2: $c#63
    put2: $T05thread:0000000000000001;#a7
    get3: $g#67
    put3: $01000000000000004600000000000000f0e658c01c1f84f70 0000000e8030000ff5f2ac04602000060000000680000007b0 011c07b00ffffffff0000ffff0000#0c
    Stopped at IP: c02a5fff
    get4: $G01000000000000004600000000000000000000001c1f84f7 00000000e8030000ff5f2ac04602000060000000680000007b 0011c07b00ffffffff0000ffff0000#a2
    put4: $OK#9a
    get5: $z4,c071955c,1#38
    put5: $OK#9a
    get6: $D#44
    put6: $OK#9a
    get7: $D#44
    put7: $OK#9a
    kgdb: Unregistered I/O driver kgdbts, debugger disabled.
    Intel(R) PRO/1000 Network Driver - version 7.3.20-k3-NAPI
    Copyright (c) 1999-2006 Intel Corporation.
    e1000e: Intel(R) PRO/1000 Network Driver - 0.3.3.3-k2
    e1000e: Copyright (c) 1999-2008 Intel Corporation.
    IOAPIC[0]: Set PCI routing entry (2-20 -> 0xc9 -> IRQ 20 Mode:1 Active:1)
    e1000e 0000:00:19.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20
    e1000e 0000:00:19.0: setting latency timer to 64
    0000:00:19.0: eth0: (PCI Express:2.5GB/s:Width x1) 00:19:d1:9f:c8:96
    0000:00:19.0: eth0: Intel(R) PRO/1000 Network Connection
    0000:00:19.0: eth0: MAC: 4, PHY: 6, PBA No: ffffff-0ff
    Intel(R) Gigabit Ethernet Network Driver - version 1.2.45-k2
    Copyright (c) 2008 Intel Corporation.
    pcnet32.c:v1.35 21.Apr.2008 tsbogend@alpha.franken.de
    e100: Intel(R) PRO/100 Network Driver, 3.5.23-k4-NAPI
    e100: Copyright(c) 1999-2006 Intel Corporation
    tun: Universal TUN/TAP device driver, 1.6
    tun: (C) 1999-2004 Max Krasnyansky
    console [netcon0] enabled
    netconsole: network logging started
    Uniform Multi-Platform E-IDE driver
    ide_generic: please use "probe_mask=0x3f" module parameter for probing
    all legacy ISA IDE ports
    Probing IDE interface ide0...
    Probing IDE interface ide1...
    ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
    ide1 at 0x170-0x177,0x376 on irq 15
    Loading iSCSI transport class v2.0-870.
    iscsi: registered transport (tcp)
    Adaptec aacraid driver 1.1-5[2456]-ms
    QLogic Fibre Channel HBA Driver: 8.02.01-k7
    GDT-HA: Storage RAID Controller Driver. Version: 3.05
    3ware Storage Controller device driver for Linux v1.26.02.002.
    Driver 'sd' needs updating - please use bus_type methods
    ata_piix 0000:00:1f.2: version 2.12
    ata_piix 0000:00:1f.2: PCI INT A -> GSI 19 (level, low) -> IRQ 19
    ata_piix 0000:00:1f.2: MAP [ P0 P2 P1 P3 ]
    ata_piix 0000:00:1f.2: setting latency timer to 64
    scsi0 : ata_piix
    scsi1 : ata_piix
    ata1: SATA max UDMA/133 cmd 0x2438 ctl 0x2454 bmdma 0x2410 irq 19
    ata2: SATA max UDMA/133 cmd 0x2430 ctl 0x2450 bmdma 0x2418 irq 19
    ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
    ata1.00: ATA-7: WDC WD1600AAJS-22PSA0, 05.06H05, max UDMA/133
    ata1.00: 312581808 sectors, multi 16: LBA48 NCQ (depth 0/32)
    ata1.00: configured for UDMA/133
    ata2: SATA link down (SStatus 0 SControl 300)
    scsi 0:0:0:0: Direct-Access ATA WDC WD1600AAJS-2 05.0 PQ: 0 ANSI: 5
    sd 0:0:0:0: [sda] 312581808 512-byte hardware sectors (160042 MB)
    sd 0:0:0:0: [sda] Write Protect is off
    sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
    sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't
    support DPO or FUA
    sd 0:0:0:0: [sda] 312581808 512-byte hardware sectors (160042 MB)
    sd 0:0:0:0: [sda] Write Protect is off
    sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
    sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't
    support DPO or FUA
    sda: sda1 sda2 < sda5 sda6 sda7 sda8 sda9 sda10 sda11 >
    sd 0:0:0:0: [sda] Attached SCSI disk
    sd 0:0:0:0: Attached scsi generic sg0 type 0
    ata_piix 0000:00:1f.5: PCI INT A -> GSI 19 (level, low) -> IRQ 19
    ata_piix 0000:00:1f.5: MAP [ P0 -- P1 -- ]
    ata_piix 0000:00:1f.5: setting latency timer to 64
    scsi2 : ata_piix
    scsi3 : ata_piix
    ata3: SATA max UDMA/133 cmd 0x2428 ctl 0x244c bmdma 0x20f0 irq 19
    ata4: SATA max UDMA/133 cmd 0x2420 ctl 0x2448 bmdma 0x20f8 irq 19
    ata3: SATA link down (SStatus 0 SControl 300)
    ata4: SATA link down (SStatus 0 SControl 300)
    pata_marvell 0000:02:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
    pata_marvell 0000:02:00.0: setting latency timer to 64
    scsi4 : pata_marvell
    scsi5 : pata_marvell
    ata5: PATA max UDMA/100 cmd 0x1018 ctl 0x1024 bmdma 0x1000 irq 17
    ata6: DUMMY
    ata5.01: ATAPI: SAMSUNG CD-ROM SC-152L, C100, max MWDMA2
    ata5.01: configured for MWDMA2
    scsi 4:0:1:0: CD-ROM SAMSUNG CD-ROM SC-152L C100 PQ: 0 ANSI: 5
    scsi 4:0:1:0: Attached scsi generic sg1 type 5
    Fusion MPT base driver 3.04.07
    Copyright (c) 1999-2008 LSI Corporation
    Fusion MPT SPI Host driver 3.04.07
    usbmon: debugfs is not available
    ohci_hcd: 2006 August 04 USB 1.1 'Open' Host Controller (OHCI) Driver
    USB Universal Host Controller Interface driver v3.0
    uhci_hcd 0000:00:1a.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
    uhci_hcd 0000:00:1a.0: setting latency timer to 64
    uhci_hcd 0000:00:1a.0: UHCI Host Controller
    uhci_hcd 0000:00:1a.0: new USB bus registered, assigned bus number 1
    uhci_hcd 0000:00:1a.0: irq 16, io base 0x000020a0
    usb usb1: configuration #1 chosen from 1 choice
    hub 1-0:1.0: USB hub found
    hub 1-0:1.0: 2 ports detected
    IOAPIC[0]: Set PCI routing entry (2-21 -> 0xd1 -> IRQ 21 Mode:1 Active:1)
    uhci_hcd 0000:00:1a.1: PCI INT B -> GSI 21 (level, low) -> IRQ 21
    uhci_hcd 0000:00:1a.1: setting latency timer to 64
    uhci_hcd 0000:00:1a.1: UHCI Host Controller
    uhci_hcd 0000:00:1a.1: new USB bus registered, assigned bus number 2
    uhci_hcd 0000:00:1a.1: irq 21, io base 0x00002080
    usb usb2: configuration #1 chosen from 1 choice
    hub 2-0:1.0: USB hub found
    hub 2-0:1.0: 2 ports detected
    IOAPIC[0]: Set PCI routing entry (2-23 -> 0xd9 -> IRQ 23 Mode:1 Active:1)
    uhci_hcd 0000:00:1d.0: PCI INT A -> GSI 23 (level, low) -> IRQ 23
    uhci_hcd 0000:00:1d.0: setting latency timer to 64
    uhci_hcd 0000:00:1d.0: UHCI Host Controller
    uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 3
    uhci_hcd 0000:00:1d.0: irq 23, io base 0x00002060
    usb usb3: configuration #1 chosen from 1 choice
    hub 3-0:1.0: USB hub found
    hub 3-0:1.0: 2 ports detected
    uhci_hcd 0000:00:1d.1: PCI INT B -> GSI 19 (level, low) -> IRQ 19
    uhci_hcd 0000:00:1d.1: setting latency timer to 64
    uhci_hcd 0000:00:1d.1: UHCI Host Controller
    uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 4
    uhci_hcd 0000:00:1d.1: irq 19, io base 0x00002040
    usb usb4: configuration #1 chosen from 1 choice
    hub 4-0:1.0: USB hub found
    hub 4-0:1.0: 2 ports detected
    uhci_hcd 0000:00:1d.2: PCI INT C -> GSI 18 (level, low) -> IRQ 18
    uhci_hcd 0000:00:1d.2: setting latency timer to 64
    uhci_hcd 0000:00:1d.2: UHCI Host Controller
    uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 5
    uhci_hcd 0000:00:1d.2: irq 18, io base 0x00002020
    usb usb5: configuration #1 chosen from 1 choice
    hub 5-0:1.0: USB hub found
    hub 5-0:1.0: 2 ports detected
    pnp: the driver 'i8042 kbd' has been registered
    i8042 kbd 00:0a: driver attached
    pnp: the driver 'i8042 aux' has been registered
    i8042 aux 00:09: driver attached
    PNP: PS/2 Controller [PNP0303:PS2K,PNP0f03:PS2M] at 0x60,0x64 irq 1,12
    serio: i8042 KBD port at 0x60,0x64 irq 1
    serio: i8042 AUX port at 0x60,0x64 irq 12
    mice: PS/2 mouse device common for all mice
    input: AT Translated Set 2 keyboard as /class/input/input0
    md: raid0 personality registered for level 0
    md: raid1 personality registered for level 1
    device-mapper: ioctl: 4.14.0-ioctl (2008-04-23) initialised: dm-devel@redhat.com
    cpuidle: using governor ladder
    usbcore: registered new interface driver usbhid
    usbhid: v2.6:USB HID core driver
    TCP cubic registered
    NET: Registered protocol family 17
    Bridge firewalling registered
    RPC: Registered udp transport module.
    RPC: Registered tcp transport module.
    Starting balanced_irq
    Using IPI No-Shortcut mode
    Freeing unused kernel memory: 312k freed
    usplash[1400]: segfault at c0014 ip 00000014 sp 00000ffa error 15 in mem[0+1000]
    input: ImExPS/2 Generic Explorer Mouse as /class/input/input1
    processor ACPI0007:00: registered as cooling_device0
    ACPI: Processor [CPU0] (supports 8 throttling states)
    processor ACPI0007:01: registered as cooling_device1
    ACPI: Processor [CPU1] (supports 8 throttling states)
    EXT3-fs: INFO: recovery required on readonly filesystem.
    EXT3-fs: write access will be enabled during recovery.
    kjournald starting. Commit interval 5 seconds
    EXT3-fs: sda1: orphan cleanup on readonly fs
    ext3_orphan_cleanup: deleting unreferenced inode 552246
    EXT3-fs: sda1: 1 orphan inode deleted
    EXT3-fs: recovery complete.
    EXT3-fs: mounted filesystem with ordered data mode.
    Linux agpgart interface v0.103
    input: Power Button (FF) as /class/input/input2
    ACPI: Power Button (FF) [PWRF]
    input: Sleep Button (CM) as /class/input/input3
    ACPI: Sleep Button (CM) [SLPB]
    agpgart-intel 0000:00:00.0: Intel 965Q Chipset
    agpgart-intel 0000:00:00.0: detected 7676K stolen memory
    agpgart-intel 0000:00:00.0: AGP aperture is 256M @ 0x40000000
    warning: `ntpd' uses 32-bit capabilities (legacy support in use)
    0000:00:19.0: eth0: Link is Up 100 Mbps Full Duplex, Flow Control: None
    0000:00:19.0: eth0: 10/100 speed: disabling TSO
    Adding 2000052k swap on /dev/sda10. Priority:-1 extents:1 across:2000052k
    EXT3 FS on sda1, internal journal
    kjournald starting. Commit interval 5 seconds
    EXT3 FS on sda9, internal journal
    EXT3-fs: mounted filesystem with ordered data mode.
    kjournald starting. Commit interval 5 seconds
    EXT3 FS on sda5, internal journal
    EXT3-fs: mounted filesystem with ordered data mode.
    kjournald starting. Commit interval 5 seconds
    EXT3 FS on sda6, internal journal
    EXT3-fs: mounted filesystem with ordered data mode.
    kjournald starting. Commit interval 5 seconds
    EXT3 FS on sda7, internal journal
    EXT3-fs: mounted filesystem with ordered data mode.
    kjournald starting. Commit interval 5 seconds
    EXT3 FS on sda8, internal journal
    EXT3-fs: mounted filesystem with ordered data mode.
    br0: Dropping NETIF_F_UFO since no NETIF_F_HW_CSUM feature.
    device eth0 entered promiscuous mode
    br0: port 1(eth0) entering learning state
    br0: topology change detected, propagating
    br0: port 1(eth0) entering forwarding state


    sysctl table check failed: /net/ipv4/conf/default/log_martians
    ..3.5.16.4.11 Sysctl already exists
    Pid: 5691, comm: libvirtd Not tainted 2.6.27-rc7 #1
    [] set_fail+0x45/0x60
    [] sysctl_check_table+0x2b5/0x610
    [] sysctl_check_table+0x2ce/0x610
    [] sysctl_check_table+0x2ce/0x610
    [] sysctl_check_table+0x2ce/0x610
    [] sysctl_check_table+0x2ce/0x610
    [] __register_sysctl_paths+0xc9/0x2c0
    [] ? try_to_wake_up+0xc2/0x160
    [] register_net_sysctl_table+0x4f/0x60
    [] __devinet_sysctl_register+0xd3/0x100
    [] devinet_sysctl_register+0x4c/0x60
    [] inetdev_init+0x9c/0x110
    [] ? nlmsg_notify+0x3b/0x80
    [] inetdev_event+0x22b/0x370
    [] notifier_call_chain+0x2d/0x60
    [] __raw_notifier_call_chain+0x19/0x20
    [] raw_notifier_call_chain+0x1a/0x20
    [] call_netdevice_notifiers+0x11/0x20
    [] register_netdevice+0x200/0x340
    [] br_add_bridge+0x159/0x190
    [] br_ioctl_deviceless_stub+0x1d3/0x1e0
    [] ? sock_attach_fd+0x8e/0xc0
    [] ? br_ioctl_deviceless_stub+0x0/0x1e0
    [] sock_ioctl+0xbf/0x210
    [] ? sock_ioctl+0x0/0x210
    [] vfs_ioctl+0x28/0x80
    [] ? sys_socket+0x52/0x70
    [] do_vfs_ioctl+0x262/0x2b0
    [] sys_ioctl+0x39/0x60
    [] sysenter_do_call+0x12/0x25
    default: starting userspace STP failed, starting kernel STP
    [drm] Initialized drm 1.1.0 20060810
    pci 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
    pci 0000:00:02.0: setting latency timer to 64
    [drm] Initialized i915 1.6.0 20060119 on minor 0

    thanks
    HTH

    >
    > Ie your original option "quiet" is to be replace with "debug apic=debug
    > kgdbts=V2".
    > Thanks!
    >
    > - Cyrill -
    >

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  10. Re: Kernel PANIC with 2.6.27-rc6

    [Tej - Fri, Oct 03, 2008 at 04:18:55PM +0530]
    | On 9/26/08, Cyrill Gorcunov wrote:
    | > [Cyrill Gorcunov - Thu, Sep 25, 2008 at 11:39:56PM +0400]
    | > | [Tej - Fri, Sep 26, 2008 at 12:04:30AM +0530]
    | > | ...
    | > |
    | > | Btw Tej, could you please apply this patch
    | > | and check if it help.
    | > |
    | > | http://lkml.org/lkml/2008/9/22/250
    | > |
    | > | Aristeu Rozanski fixed one race window which take
    | > | place on unpredicted nmi's.
    | > |
    | > | - Cyrill -
    | >
    | > Btw Tej, could you post boot log if kernel were started as
    | >
    | > root=/dev/sda1 ro debug apic=debug kgdbts=V2 splash console=tty0
    | > console=ttyS0,
    | sorry for this long pause.
    |
    | machine boots fine with the options specified, and logs are collected
    | as follows.
    | some warning related to sysctl table checking, but its related to
    | libvirtd (KVM) at the end.
    |

    ok, lets assume NMI race is fixed

    - Cyrill -
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