Kernel panic: vm_fault

Jake Guffey jake.guffey at jointheirstm.org
Sun Jul 5 02:31:22 UTC 2015


Hi, .*:

I’m not entirely sure if this belongs here or in freebsd-bugs, but since I haven’t found a bug myself, I chose to send it here first. Please let me know if I’m in the wrong place.

I just experienced a kernel panic/reboot and I’m not sure what’s happening. /var/log/messages only provides:

Jul  5 02:19:37 shemuel syslogd: kernel boot file is /boot/kernel/kernel
Jul  5 02:19:37 shemuel kernel: panic: vm_fault: fault on nofault entry, addr: c8f45000
Jul  5 02:19:37 shemuel kernel: KDB: stack backtrace:
Jul  5 02:19:37 shemuel kernel: #0 0xc06f07e2 at kdb_backtrace+0x52
Jul  5 02:19:37 shemuel kernel: #1 0xc06bafe5 at panic+0x85
Jul  5 02:19:37 shemuel kernel: #2 0xc096439e at vm_fault_hold+0x211e
Jul  5 02:19:37 shemuel kernel: #3 0xc0962241 at vm_fault+0x81
Jul  5 02:19:37 shemuel kernel: #4 0xc0a02931 at trap_pfault+0x291
Jul  5 02:19:37 shemuel kernel: #5 0xc0a020e1 at trap+0x5f1
Jul  5 02:19:37 shemuel kernel: #6 0xc09ee5ec at calltrap+0x6
Jul  5 02:19:37 shemuel kernel: #7 0xc085eb8a at sysctl_ip6_temppltime+0x3a
Jul  5 02:19:37 shemuel kernel: #8 0xc06c5a4f at sysctl_root+0x2af
Jul  5 02:19:37 shemuel kernel: #9 0xc06c6049 at userland_sysctl+0x1f9
Jul  5 02:19:37 shemuel kernel: #10 0xc06c5e08 at sys___sysctl+0x98
Jul  5 02:19:37 shemuel kernel: #11 0xc0a02f4e at syscall+0x38e
Jul  5 02:19:37 shemuel kernel: #12 0xc09ee651 at Xint0x80_syscall+0x21
Jul  5 02:19:37 shemuel kernel: Uptime: 35d19h44m32s
Jul  5 02:19:37 shemuel kernel: Physical memory: 787 MB
Jul  5 02:19:37 shemuel kernel: Dumping 133 MB: 118 102 86 70 54 38 22 6 
Jul  5 02:19:37 shemuel kernel: Dump complete
Jul  5 02:19:37 shemuel kernel: Automatic reboot in 15 seconds - press a key on the console to abort
Jul  5 02:19:37 shemuel kernel: Rebooting…

I do have a dump that I can provide if someone needs it.

This particular box runs two jails and that’s about it. At the time of the panic, I issued "sysctl -a | grep jail” from within one of my jails.

Any help would be greatly appreciated.

Thanks,
Jake


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