tip - oops while running powertop - Kernel

This is a discussion on tip - oops while running powertop - Kernel ; Got the below oops just after running powertop. Does not seem to occur in Linus's tree. Parag [ 780.772501] BUG: unable to handle kernel paging request at c012aa60 [ 780.772501] IP: [ ] number+0x1f8/0x330 [ 780.772501] *pdpt = 0000000000476001 *pde ...

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Thread: tip - oops while running powertop

  1. tip - oops while running powertop

    Got the below oops just after running powertop. Does not seem to occur
    in Linus's tree.

    Parag

    [ 780.772501] BUG: unable to handle kernel paging request at c012aa60
    [ 780.772501] IP: [] number+0x1f8/0x330
    [ 780.772501] *pdpt = 0000000000476001 *pde = 00000000004ed067 *pte =
    000000000012a161
    [ 780.772501] Oops: 0003 [#1] SMP
    [ 780.772501] Modules linked in: af_packet radeon drm binfmt_misc
    rfcomm l2cap kvm_intel kvm ppdev ipv6 acpi_cpufreq cpufreq_powersave
    cpufreq_stats cpufreq_conservative cpufreq_ondemand freq_table
    cpufreq_userspace container video output pci_slot battery
    iptable_filter ip_tables x_tables ac sbp2 lp snd_hda_intel snd_pcm_oss
    snd_mixer_oss snd_pcm snd_timer snd_hwdep appledisplay hci_usb snd
    bluetooth psmouse iTCO_wdt parport_serial parport_pc intel_agp parport
    button soundcore agpgart serio_raw snd_page_alloc iTCO_vendor_support
    pcspkr e1000e shpchp pci_hotplug evdev ext3 jbd mbcache sg sr_mod
    cdrom sd_mod usbhid hid usb_storage libusual ohci1394 ieee1394 ahci
    libata scsi_mod dock uhci_hcd ehci_hcd usbcore thermal processor fan
    thermal_sys fuse
    [ 780.776002]
    [ 780.776002] Pid: 7472, comm: powertop Not tainted (2.6.27-rc1-tip-tip #2)
    [ 780.776002] EIP: 0060:[] EFLAGS: 00010206 CPU: 2
    [ 780.776002] EIP is at number+0x1f8/0x330
    [ 780.776002] EAX: 00000030 EBX: 00000000 ECX: f282bdab EDX: c012aa60
    [ 780.776002] ESI: c012aa60 EDI: ffffffff EBP: 00000001 ESP: f282bd88
    [ 780.776002] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
    [ 780.776002] Process powertop (pid: 7472, ti=f282a000 task=f446a760
    task.ti=f282a000)
    [ 780.776002] Stack: fffffffc f282bdaa 00000000 00000000 c03fe3c0
    fffffffd fffffffc 00000001
    [ 780.776002] c030e3c4 c0125e78 80000001 00000000 fff99000
    00000286 fb53e769 c0346025
    [ 780.776002] c01b126e f35b1558 4c0c797e f71ef000 f282be48
    f70a6cc0 00000000 00000016
    [ 780.776002] Call Trace:
    [ 780.776002] [] fib_dump_info+0x134/0x3d0
    [ 780.776002] [] kmap_atomic_prot+0xf8/0x130
    [ 780.776002] [] _spin_lock+0x5/0x10
    [ 780.776002] [] __d_lookup+0x10e/0x120
    [ 780.776002] [] sched_mc_power_savings_show+0x0/0x20
    [ 780.776002] [] vsnprintf+0x2d1/0x5a0
    [ 780.776002] [] sched_mc_power_savings_show+0x0/0x20
    [ 780.776002] [] flush_tlb_page+0x71/0x80
    [ 780.776002] [] dput+0x97/0x130
    [ 780.776002] [] sysfs_put_active_two+0xc/0x20
    [ 780.776002] [] sysfs_open_file+0x188/0x1f0
    [ 780.776002] [] kmap_atomic+0x1c/0x30
    [ 780.776002] [] kunmap_atomic+0x2d/0x80
    [ 780.776002] [] get_page_from_freelist+0x2cd/0x480
    [ 780.776002] [] __alloc_pages_internal+0xb3/0x450
    [ 780.776002] [] mmap_region+0x24c/0x490
    [ 780.776002] [] sprintf+0x20/0x30
    [ 780.776002] [] sched_mc_power_savings_show+0x1c/0x20
    [ 780.776002] [] sched_mc_power_savings_show+0x0/0x20
    [ 780.776002] [] sysdev_class_show+0x21/0x30
    [ 780.776002] [] sysfs_read_file+0x83/0x120
    [ 780.776002] [] security_file_permission+0xc/0x10
    [ 780.776002] [] sysfs_read_file+0x0/0x120
    [ 780.776002] [] vfs_read+0x9d/0x160
    [ 780.776002] [] sys_read+0x41/0x70
    [ 780.776002] [] sysenter_do_call+0x12/0x2f
    [ 780.776002] [] init_amd+0x640/0x6f0
    [ 780.776002] =======================
    [ 780.776002] Code: 06 30 83 e8 01 83 c6 01 39 c5 7e ef 89 eb 83 eb
    01 78 2a 8d 54 24 22 89 d1 89 54 24 04 01 e9 89 f2 66 90 39 d7 76 06
    0f b6 41 ff <88> 02 83 c2 01 83 e9 01 3b 4c 24 04 75 ea 8d 74 1e 01 8b
    4c 24
    [ 780.776002] EIP: [] number+0x1f8/0x330 SS:ESP 0068:f282bd88
    [ 780.776002] ---[ end trace f2f1f5eec0db2fb6 ]---
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  2. Re: tip - oops while running powertop


    * Parag Warudkar wrote:

    > Got the below oops just after running powertop. Does not seem to occur
    > in Linus's tree.


    > [ 780.776002] [] __d_lookup+0x10e/0x120
    > [ 780.776002] [] sched_mc_power_savings_show+0x0/0x20
    > [ 780.776002] [] vsnprintf+0x2d1/0x5a0
    > [ 780.776002] [] sched_mc_power_savings_show+0x0/0x20
    > [ 780.776002] [] flush_tlb_page+0x71/0x80
    > [ 780.776002] [] dput+0x97/0x130


    should be fixed in latest tip/master - let me know if it still triggers.

    Ingo
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