trap 12

[Robert Watson]

On Fri, 3 Jul 2009, Ian J Hart wrote:

> Is this likely to be hardware? Details will follow if not.

This looks like a kernel NULL pointer deference (faulting address 0x0), which 
means it is most likely a kernel bug, although it could be triggered by a 
hardare problem.  If this early in the boot or a diskless box, hence no dump 
device?

Robert N M Watson
Computer Laboratory
University of Cambridge

>
> [copied from a screen dump]
>
> Fatal trap 12: page fault while in kernel mode
> cpuid = 1; apic id = 01
> fault virtual address = 0x0
> fault code = supervisor write data, page not present
> instruction pointer = 0x8:0xffffffff807c6c12
> stack pointer = 0x10:0xffffffff510e7890
> frame pointer = 0x10:0xffffff00054a6c90
> code segment = base 0x0, limit 0xfffff, type 0x1b
> = DPL 0, pres 1, long 1 def32 0, gran 1
> processor eflags = interrupt enabled, resume, IOPL = 0
> current process = 75372 (printf)
> trap number = 12
> panic: page fault
> cpuid = 1
> uptime: 8m2s
> Cannot dump. No dump device defined.
>
>
> -- 
> ian j hart
>
>
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