Page Faulting Box?

[Kris Kennaway]

On Mon, Jan 22, 2007 at 10:25:31AM -0800, Jay Chandler wrote:
> One of our servers is restarting at random.  Not entirely sure what 
> causes it-- hopefully someone here can help me track it down

Often it's bad hardware, especially if only manifesting onone server
out of several with the same hardware and workload.

> (I suspect 
> hardware at some point, potentially the Broadcom NIC).
> 
> This is what's in the messages log-- what else can I provide y'all with?

The backtrace from the crashdump, or at the very least look up the IP
in the kernel.debug.  See the developers handbook chapter on kernel
debugging.

Kris

> 
> Jan 22 10:16:55 montreal kernel: kernel trap 12 with interrupts disabled
> Jan 22 10:16:55 montreal kernel:
> Jan 22 10:16:55 montreal kernel:
> Jan 22 10:16:55 montreal kernel: Fatal trap 12: page fault while in 
> kernel mode
> Jan 22 10:16:55 montreal kernel: cpuid = 2; apic id = 06
> Jan 22 10:16:55 montreal kernel: fault virtual address  = 0x104
> Jan 22 10:16:55 montreal kernel: fault code             = supervisor 
> read, page not present
> Jan 22 10:16:55 montreal kernel: instruction pointer    = 0x20:0xc066c731
> Jan 22 10:16:55 montreal kernel: stack pointer          = 0x28:0xe4f99c90
> Jan 22 10:16:55 montreal kernel: frame pointer          = 0x28:0xe4
> Jan 22 10:16:55 montreal kernel: f99c9c
> Jan 22 10:16:55 montreal kernel:
> Jan 22 10:16:55 montreal kernel: code segment           = base 0x0, 
> limit 0xfffff, type 0x1b
> Jan 22 10:16:55 montreal kernel: = DPL 0, pres 1, def32 1, gran 1
> Jan 22 10:16:55 montreal kernel:
> Jan 22 10:16:55 montreal kernel: processor eflags       = resume, IOPL = 0
> Jan 22 10:20:58 montreal syslogd: kernel boot file is /boot/kernel/kernel
> 
> 
> -- 
> Jay Chandler
> Network Administrator, Chapman University
> 714.628.7249 / chandler at chapman.edu
> Today's Excuse: excess surge protection 
> 
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