Date: Sat, 05 Jan 2008 01:36:26 +0200 From: Zinevich Denis <link@ngc.net.ua> To: freebsd-questions@freebsd.org Subject: kernel: Fatal trap 12: page fault while in kernel mode Message-ID: <477EC2FA.7000108@ngc.net.ua>
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Hi all.
Some problem with free.
I`ve got such mess in log:
Jan 4 22:47:09 fs kernel: Fatal trap 12: page fault while in kernel mode
Jan 4 22:47:09 fs kernel: fault virtual address = 0x3e
Jan 4 22:47:09 fs kernel: fault code = supervisor read, page not present
Jan 4 22:47:09 fs kernel: instruction pointer = 0x20:0xc060cc24
Jan 4 22:47:09 fs kernel: stack pointer = 0x28:0xe529ac30
Jan 4 22:47:09 fs kernel: frame pointer = 0x28:0xe529ac34
Jan 4 22:47:09 fs kernel: code segment = base 0x0, limit 0xfffff,
type 0x1b
Jan 4 22:47:09 fs kernel: = DPL 0, pres 1, def32 1, gran 1
Jan 4 22:47:09 fs kernel: processor eflags = interrupt enabled,
resume,IOPL = 0
Jan 4 22:47:09 fs kernel: current process = 9 (thread taskq)
Jan 4 22:47:09 fs kernel: trap number = 12
Jan 4 22:47:09 fs kernel: panic: page fault
Jan 4 22:47:09 fs kernel: Uptime: 4d0h37m10s
Jan 4 22:47:09 fs kernel: Physical memory: 2013 MB
Jan 4 22:47:09 fs kernel: Dumping 243 MB: 228 212 196 180 164 148 132
116 100 84 68 52 36 20 4
Jan 4 22:47:09 fs kernel: Dump complete
Jan 4 22:47:09 fs kernel: Automatic reboot in 15 seconds - press a key
on the console to abort
Jan 4 22:47:09 fs kernel: Rebooting...
Problem repeats for 6.2-RELEASE.
kgdb kernel.debug /var/crash/vmcore.0 - returns this:
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x3e
fault code = supervisor read, page not present
instruction pointer = 0x20:0xc060cc24
stack pointer = 0x28:0xe529ac30
frame pointer = 0x28:0xe529ac34
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 = 9 (thread taskq)
trap number = 12
panic: page fault
Uptime: 4d0h37m10s
Physical memory: 2013 MB
Dumping 243 MB: 228 212 196 180 164 148 132 116 100 84 68 52 36 20 4
#0 doadump () at pcpu.h:195
195 __asm __volatile("movl %%fs:0,%0" : "=r" (td));
I think it`s hardware problem. This machine has been working for about 9
months with no problems.... but I dont know how to correctly find the
problem.
uname -a:
FreeBSD fs.ngc.net.ua 8.0-CURRENT FreeBSD 8.0-CURRENT #3: Mon Dec 31
05:07:25 EET 2007 root@fs.myhost.net.ua:/usr/obj/usr/src/sys/FS i386
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