Hi list,

My Backup Server is running 7-BETA3 from 3 days ago, is a single
processor Core2 Duo with 2GB Ram AMD64 SMP Kernel with ZFS.

Last night the machine rebooted after a crash, bellow are my dmesg
and some messages that I get from /var/log/messsages.

Let me know if you need some other information.

Thanks in advance,

Alexandre


======== zfs error quite frequently ========

Nov 24 02:33:51 Manny kernel: uma_zalloc_arg: zone "256" with the
following non-sleepable locks held:
Nov 24 02:33:51 Manny kernel: exclusive sleep mutex struct mount mtx r
= 0 (0xffffff0003d0c6a0) locked @
/usr/src/sys/modules/zfs/../../compat/opensolaris/kern/opensolaris_vfs.c:206
Nov 24 02:33:51 Manny kernel: KDB: stack backtrace:
Nov 24 02:33:51 Manny kernel: db_trace_self_wrapper() at
db_trace_self_wrapper+0x2a
Nov 24 02:33:51 Manny kernel: witness_warn() at witness_warn+0x248
Nov 24 02:33:51 Manny kernel: uma_zalloc_arg() at uma_zalloc_arg+0x33a
Nov 24 02:33:51 Manny kernel: malloc() at malloc+0x8a
Nov 24 02:33:51 Manny kernel: crget() at crget+0x1f
Nov 24 02:33:51 Manny kernel: crdup() at crdup+0x19
Nov 24 02:33:51 Manny kernel: domount() at domount+0x1fe
Nov 24 02:33:51 Manny kernel: zfsctl_snapdir_lookup() at
zfsctl_snapdir_lookup+0x307
Nov 24 02:33:51 Manny kernel: VOP_LOOKUP_APV() at VOP_LOOKUP_APV+0x95
Nov 24 02:33:51 Manny kernel: lookup() at lookup+0x4cd
Nov 24 02:33:51 Manny kernel: namei() at namei+0x2cb
Nov 24 02:33:51 Manny kernel: kern_stat() at kern_stat+0x61
Nov 24 02:33:51 Manny kernel: stat() at stat+0x2a
Nov 24 02:33:51 Manny kernel: syscall() at syscall+0x1ce
Nov 24 02:33:51 Manny kernel: Xfast_syscall() at Xfast_syscall+0xab
Nov 24 02:33:51 Manny kernel: --- syscall (188, FreeBSD ELF64, stat),
rip = 0x800c6447c, rsp = 0x7fffffffeca8, rbp = 0x2 ---

======== one error that I don't know of what is related to ========
Nov 24 02:53:23 Manny kernel: rtfree: 0xffffff0003dd0d20 has 1 refs

======== last message before reboot ========
Nov 24 03:55:25 Manny syslogd: kernel boot file is /boot/kernel/kernel
Nov 24 03:55:25 Manny kernel: panic: vm_fault: fault on nofault entry,
addr: ffffffffd8641000
Nov 24 03:55:25 Manny kernel: cpuid = 0
Nov 24 03:55:25 Manny kernel: KDB: stack backtrace:
Nov 24 03:55:25 Manny kernel: db_trace_self_wrapper() at
db_trace_self_wrapper+0x2a
Nov 24 03:55:25 Manny kernel: panic() at panic+0x17a
Nov 24 03:55:25 Manny kernel: vm_fault() at vm_fault+0x14c1
Nov 24 03:55:25 Manny kernel: trap_pfault() at trap_pfault+0x218
Nov 24 03:55:25 Manny kernel: trap() at trap+0x30c
Nov 24 03:55:25 Manny kernel: calltrap() at calltrap+0x8
Nov 24 03:55:25 Manny kernel: --- trap 0xc, rip = 0xffffffffd8198e54,
rsp = 0xffffffffd8272960, rbp = 0xffffffffd82729a0 ---
Nov 24 03:55:25 Manny kernel: dsl_dir_set_reservation_check() at
dsl_dir_set_reservation_check+0x24
Nov 24 03:55:25 Manny kernel: dsl_sync_task_group_sync() at
dsl_sync_task_group_sync+0x96
Nov 24 03:55:25 Manny kernel: dsl_pool_sync() at dsl_pool_sync+0xc3
Nov 24 03:55:25 Manny kernel: spa_sync() at spa_sync+0x390
Nov 24 03:55:25 Manny kernel: txg_sync_thread() at txg_sync_thread+0x12f
Nov 24 03:55:25 Manny kernel: fork_exit() at fork_exit+0x12a
Nov 24 03:55:25 Manny kernel: fork_trampoline() at fork_trampoline+0xe
Nov 24 03:55:25 Manny kernel: --- trap 0, rip = 0, rsp =
0xffffffffd8272d30, rbp = 0 ---
Nov 24 03:55:25 Manny kernel: Uptime: 1d7h39m37s
Nov 24 03:55:25 Manny kernel: Physical memory: 2036 MB
Nov 24 03:55:25 Manny kernel: Dumping 827 MB: 812 796 780 764 748 732
716 700 684 668 652 636 620 604 588 572 556 540 524 508 492 476 460
444 428 412 396 380 364 348 332 316 300 284 268 252 236 220 204 188
172 156 140 124 108 92 76 60 44 28 12
Nov 24 03:55:25 Manny kernel: Dump complete
Nov 24 03:55:25 Manny kernel: Automatic reboot in 15 seconds - press a
key on the console to abort
Nov 24 03:55:25 Manny kernel: Rebooting...
Nov 24 03:55:25 Manny kernel: cpu_reset: Stopping other CPUs


========= dmesg =============
Copyright (c) 1992-2007 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 7.0-BETA3 #2: Wed Nov 21 13:59:19 BRST 2007
root@Manny:/usr/obj/usr/src/sys/MANNY.debug
WARNING: WITNESS option enabled, expect reduced performance.
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz (2409.70-MHz K8-class CPU)
Origin = "GenuineIntel" Id = 0x6f6 Stepping = 6
Features=0xbfebfbff
Features2=0xe3bd
AMD Features=0x20100800
AMD Features2=0x1
Cores per package: 2
usable memory = 2135810048 (2036 MB)
avail memory = 2059890688 (1964 MB)
ACPI APIC Table:
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
cpu0 (BSP): APIC ID: 0
cpu1 (AP): APIC ID: 1
ioapic0: Changing APIC ID to 2
ioapic0 irqs 0-23 on motherboard
kbd1 at kbdmux0
acpi0: on motherboard
acpi0: [ITHREAD]
acpi0: Power Button (fixed)
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x408-0x40b on acpi0
cpu0: on acpi0
est0: on cpu0
p4tcc0: on cpu0
cpu1: on acpi0
est1: on cpu1
p4tcc1: on cpu1
acpi_button0: on acpi0
pcib0: port 0xcf8-0xcff on acpi0
pci0: on pcib0
pcib1: at device 1.0 on pci0
pci1: on pcib1
pcib2: at device 3.0 on pci0
pci2: on pcib2
arcmsr0:
> mem 0x84200000-0x84201fff irq 16 at device 0.0 on pci2
ARECA RAID ADAPTER0: Driver Version 1.20.00.14 2007-2-05
ARECA RAID ADAPTER0: FIRMWARE VERSION V1.42 2006-10-13
arcmsr0: [ITHREAD]
pcib3: at device 28.0 on pci0
pci3: on pcib3
pcib4: at device 28.4 on pci0
pci4: on pcib4
pcib5: at device 28.5 on pci0
pci5: on pcib5
em0: port
0x2000-0x201f mem 0x84100000-0x8411ffff irq 17 at device 0.0 on pci5
em0: Ethernet address: 00:19:d1:12:4c:4c
em0: [FILTER]
uhci0: port 0x3080-0x309f irq 23 at
device 29.0 on pci0
uhci0: [GIANT-LOCKED]
uhci0: [ITHREAD]
usb0: on uhci0
usb0: USB revision 1.0
uhub0: on usb0
uhub0: 2 ports with 2 removable, self powered
uhci1: port 0x3060-0x307f irq 19 at
device 29.1 on pci0
uhci1: [GIANT-LOCKED]
uhci1: [ITHREAD]
usb1: on uhci1
usb1: USB revision 1.0
uhub1: on usb1
uhub1: 2 ports with 2 removable, self powered
uhci2: port 0x3040-0x305f irq 18 at
device 29.2 on pci0
uhci2: [GIANT-LOCKED]
uhci2: [ITHREAD]
usb2: on uhci2
usb2: USB revision 1.0
uhub2: on usb2
uhub2: 2 ports with 2 removable, self powered
uhci3: port 0x3020-0x303f irq 16 at
device 29.3 on pci0
uhci3: [GIANT-LOCKED]
uhci3: [ITHREAD]
usb3: on uhci3
usb3: USB revision 1.0
uhub3: on usb3
uhub3: 2 ports with 2 removable, self powered
ehci0: mem
0x84300400-0x843007ff irq 23 at device 29.7 on pci0
ehci0: [GIANT-LOCKED]
ehci0: [ITHREAD]
usb4: EHCI version 1.0
usb4: companion controllers, 2 ports each: usb0 usb1 usb2 usb3
usb4: on ehci0
usb4: USB revision 2.0
uhub4: on usb4
uhub4: 8 ports with 8 removable, self powered
pcib6: at device 30.0 on pci0
pci6: on pcib6
ahc0: port 0x1100-0x11ff mem
0x84000000-0x84000fff irq 21 at device 0.0 on pci6
ahc0: [ITHREAD]
aic7899: Ultra160 Wide Channel A, SCSI Id=7, 32/253 SCBs
ahc1: port 0x1000-0x10ff mem
0x84001000-0x84001fff irq 22 at device 0.1 on pci6
ahc1: [ITHREAD]
aic7899: Ultra160 Wide Channel B, SCSI Id=7, 32/253 SCBs
vgapci0: mem 0x80000000-0x83ffffff irq 18 at
device 2.0 on pci6
isab0: at device 31.0 on pci0
isa0: on isab0
atapci0: port
0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x30b0-0x30bf irq 18 at device
31.1 on pci0
ata0: on atapci0
ata0: [ITHREAD]
ata1: on atapci0
ata1: [ITHREAD]
atapci1: port
0x30c8-0x30cf,0x30e4-0x30e7,0x30c0-0x30c7,0x30e0-0x30e3,0x30a0-0x30af
mem 0x84300000-0x843003ff irq 19 at device 31.2 on pci0
atapci1: [ITHREAD]
atapci1: AHCI Version 01.10 controller with 4 ports detected
ata2: on atapci1
ata2: [ITHREAD]
ata3: on atapci1
ata3: [ITHREAD]
ata4: on atapci1
ata4: [ITHREAD]
ata5: on atapci1
ata5: [ITHREAD]
pci0: at device 31.3 (no driver attached)
sio0: configured irq 4 not in bitmap of probed irqs 0
sio0: port may not be enabled
sio0: configured irq 4 not in bitmap of probed irqs 0
sio0: port may not be enabled
sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0
sio0: type 16550A
sio0: [FILTER]
orm0: at iomem 0xc0000-0xc7fff,0xc8000-0xc8fff on isa0
sc0: at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
atkbdc0: at port 0x60,0x64 on isa0
atkbd0: irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
atkbd0: [ITHREAD]
ppc0: cannot reserve I/O port range
sio1: configured irq 3 not in bitmap of probed irqs 0
sio1: port may not be enabled
vga0: at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
ukbd0: on uhub1
kbd2 at ukbd0
Timecounters tick every 1.000 msec
ad0: 76319MB at ata0-master UDMA100
Waiting 5 seconds for SCSI devices to settle
da0 at arcmsr0 bus 0 target 0 lun 0
da0: Fixed Direct Access SCSI-5 device
da0: 166.666MB/s transfers (83.333MHz DT, offset 32, 16bit)
da0: 3814696MB (7812497408 512 byte sectors: 255H 63S/T 486305C)
sa0 at ahc0 bus 0 target 1 lun 0
sa0: Removable Sequential Access SCSI-3 device
sa0: 160.000MB/s transfers (80.000MHz DT, offset 127, 16bit)
sa1 at ahc0 bus 0 target 2 lun 0
sa1: Removable Sequential Access SCSI-3 device
sa1: 160.000MB/s transfers (80.000MHz DT, offset 127, 16bit)
SMP: AP CPU #1 Launched!
WARNING: WITNESS option enabled, expect reduced performance.
ch0 at ahc0 bus 0 target 0 lun 0
ch0: Removable Changer SCSI-2 device
ch0: 3.300MB/s transfers
ch0: 21 slots, 2 drives, 1 picker, 1 portal
Trying to mount root from ufs:/dev/ad0s1a
WARNING: / was not properly dismounted
WARNING: /usr was not properly dismounted
WARNING: /var was not properly dismounted
/var: mount pending error: blocks 580 files 5
WARNING: ZFS is considered to be an experimental feature in FreeBSD.
ZFS filesystem version 6
ZFS storage pool version 6
em0: link state changed to UP
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