kernel trap 12 with interrupts disabled [bge0 on 7.2R]

[Martin]

Am Fri, 15 May 2009 12:05:47 -0400
schrieb John Baldwin <jhb at freebsd.org>:

> > (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.

Hi John,

I've been testing RAM for 2 hours in user space with 3 parallel
processes of sysutils/memtest. What can I say?

I just got this in second loop of memtest:

Loop 2:
  Stuck Address       : ok
  Random Value        : ok
  Compare XOR         : ok
  Compare SUB         : ok
  Compare MUL         : ok
  Compare DIV         : ok
  Compare OR          : ok
  Compare AND         : ok
  Sequential Increment: ok
  Solid Bits          : ok
  Block Sequential    : ok
  Checkerboard        : testing  59FAILURE: 0xaaaaaaaaaaaaaaaa != 0x400300007007 at offset 0x007dc608.
FAILURE: 0x5555555555555555 != 0xf0000070ef00007 at offset 0x007dc609.
FAILURE: 0xaaaaaaaaaaaaaaaa != 0x00004003 at offset 0x007dc60a.
FAILURE: 0x5555555555555555 != 0x00004002 at offset 0x007dc60b.
FAILURE: 0xaaaaaaaaaaaaaaaa != 0xffffffff807cb4e0 at offset 0x007dc60c.
FAILURE: 0x5555555555555555 != 0x00000000 at offset 0x007dc60d.
FAILURE: 0xaaaaaaaaaaaaaaaa != 0x000002fa at offset 0x007dc60e.
FAILURE: 0x5555555555555555 != 0x00000000 at offset 0x007dc60f.
  Bit Spread          : ok
  Bit Flip            : setting  35^C



I think this is obvious enough.

Thank you for your patience with me. This was a good hint. I would have
never thought of a RAM defect.

--
Martin