Re: Random panic and reboot

[Kliment Andreev]

> and use cheap memory, but this box has great memory
> (can't remember which brand) and has been running 4.4
> release for a year, then 4.6 release for the last 3
> Oct 14 03:07:20 mas01 /kernel: Fatal trap 12: page
> fault while in kernel mode

Fatal trap 12 is a hardware error, conflict but usually it means something
is wrong with the RAM even if it is a brand name. I have a box running very
smoothly for several months and when I was trying to cvsup/compile patches
I've got this errors. After buying another memory module, everything was OK.



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Random panic and reboot

[twig les]

Hey all, I'm a bit curious as to why my 4.6 Release
box (stripped down and patched) rebooted this morning.
 I've had this problem before when I tried to skimp
and use cheap memory, but this box has great memory
(can't remember which brand) and has been running 4.4
release for a year, then 4.6 release for the last 3
months - both without a problem.  Last Saturday I got
a phone call that this box was down and had remote
hands reboot and fsck -y the thing so I'm not sure
what's happening.  This is the error from
/var/run/messages regarding today's reboot; Saturday's
problem left no logs.
-
Oct 14 03:07:20 mas01 /kernel: Fatal trap 12: page
fault while in kernel mode
Oct 14 03:07:20 mas01 /kernel: mp_lock = 0002;
cpuid = 0; lapic.id = 
Oct 14 03:07:20 mas01 /kernel: fault virtual address  
 = 0x3008
Oct 14 03:07:20 mas01 /kernel: fault code 
 = supervisor read, page not present
Oct 14 03:07:20 mas01 /kernel: instruction pointer
 = 0x8:0xc0216818
Oct 14 03:07:20 mas01 /kernel: stack pointer  
 = 0x10:0xebaa5bc8
Oct 14 03:07:20 mas01 /kernel: frame pointer  
 = 0x10:0xebaa5bfc
Oct 14 03:07:20 mas01 /kernel: code segment   
 = base 0x0, limit 0xf, type 0x1b
Oct 14 03:07:20 mas01 /kernel: = DPL 0, pres 1, def32
1, gran 1
Oct 14 03:07:20 mas01 /kernel: processor eflags =
interrupt enabled, resume, IOPL = 0
Oct 14 03:07:20 mas01 /kernel: current process
 = 1705 (find)
Oct 14 03:07:20 mas01 /kernel: interrupt mask 
 = bio  <- SMP: XXX
Oct 14 03:07:20 mas01 /kernel: trap number
 = 12
Oct 14 03:07:20 mas01 /kernel: panic: page fault
Oct 14 03:07:20 mas01 /kernel: mp_lock = 0002;
cpuid = 0; lapic.id = 
Oct 14 03:07:20 mas01 /kernel: boot() called on cpu#0

=
---
Heavy metal made me do it.
---

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