Date: Fri, 15 May 2009 12:05:47 -0400 From: John Baldwin <jhb@freebsd.org> To: Martin <nakal@web.de> Cc: freebsd-stable@freebsd.org Subject: Re: kernel trap 12 with interrupts disabled [bge0 on 7.2R] Message-ID: <200905151205.47672.jhb@freebsd.org> In-Reply-To: <20090515173800.071e53c2@zelda.local> References: <1696198956@web.de> <200905151109.21127.jhb@freebsd.org> <20090515173800.071e53c2@zelda.local>
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On Friday 15 May 2009 11:38:00 am Martin wrote:
> Am Fri, 15 May 2009 11:09:20 -0400
> schrieb John Baldwin <jhb@freebsd.org>:
>
> > x/i please. The /i decodes it as an instruction so I can see which
> > registers it was attempting to dereference.
>
> Oh sorry...
>
> (kgdb) x/i 0xffffffff805bbc66
> 0xffffffff805bbc66 <rt_maskedcopy+6>: movzbl (%rdx),%edx
Hmm, your %rdx is garbage. :(
rdx 0xef3fdf377db53afa -1207000745686779142
That should at least be
0xffffff..........
Looks like r9 and r14 have the same odd value. Normally I would see a more
obvious breakage such as one of the 'f' nibbles being set to '0' or 'e', etc.
You could try looking for that odd pointer value in the route structure or as
arguments to other functions in the stack trace to see if you can find a
corrupted data structure.
--
John Baldwin
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