Hi. My FreeBSD 9.0-RELEASE server has had perfect uptime and stability since the day I installed it (about one month ago) but randomly rebooted itself this morning. I've never had to troubleshoot this before so I'm not sure how to find the cause. This was all I found in dmesg.
Thanks for any help, I'm really puzzled as to what happened. It was under very light load at the time if it matters.
Code:
Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address = 0x260
fault code = supervisor read, page not present
instruction pointer = 0x20:0xc12a62f0
(da1:stack pointer = 0x28:0xc520ac68
umass-sim1:1:0:frame pointer = 0x28:0xc520ac84
0): removing device entry
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 13 (g_down)
trap number = 12
panic: page fault
cpuid = 0
KDB: stack backtrace:
#0 0xc0a4b157 at kdb_backtrace+0x47
#1 0xc0a186b7 at panic+0x117
#2 0xc0d48cf3 at trap_fatal+0x323
#3 0xc0d48dad at trap_pfault+0xad
#4 0xc0d49b35 at trap+0x465
#5 0xc0d32a8c at calltrap+0x6
#6 0xc09aecd9 at g_io_schedule_down+0x269
#7 0xc09af012 at g_down_procbody+0x72
#8 0xc09ea997 at fork_exit+0x97
Thanks for any help, I'm really puzzled as to what happened. It was under very light load at the time if it matters.