[BUG]linux-2.4.26 Quad-Opteron: panic when init scsi

[Juergen Stohr <juergen.stohr@lpr.e-technik.tu-muenchen.de>]

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Hi,

I have got a problem similar to the one discussed in the thread
"[BUG]linux-2.4.24 with k8 numa support panic when init scsi": When 
booting the 2.4.26 on a quad Opteron box, in most of the cases the 
kernel crashes when initializing SCSI.
It seems to me that this bug is caused by a race, as in a few
cases the machine is able to boot.

The machine always boots if I set maxcpus=1.

If I append numa=off to the command line the kernel crashes with a
"Machine Check Exception" (but is able to initialize SCSI; perhaps
this is another bug?)

Does anybody know how to solve this problem or is anybody working on it?
Can someone give me a hint where to start when debugging this race?

I will attach the config of my kernel, the syslogs and the output of
ksymoops.

Regards,
Jürgen

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