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SubjectRe: Fw: crash on x86_64 - mm related?


On Mon, 12 Dec 2005, Ryan Richter wrote:
>
> And yet another crash, this time during boot:

The instruction that crashes is

testb $0x80,0x1cd(%rdi)

with %rdi being 6b6b6b6b6b6b6b6b, which is the pattern that slab poisoning
uses for free areas.

I think it's the "sdev->single_lun" test at the very top of the function,
where "sdev" was initialized with "q->queuedata". So it looks like
somebody free'd the request_queue structure before the IO completed.

Definitely sounds like something screwy in SCSI.. I don't think this is VM
related.

Linus
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