Re: Fw: crash on x86_64 - mm related?

[Linus Torvalds <torvalds@osdl.org>]

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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