Re: qla2xxx: frequent total lockups (2.6.8, 2.6.9-rc{1-mm5,2})

[Oliver M. Bolzer]

On Thu, Sep 16, 2004 at 01:16:59AM +0200, "Oliver M. Bolzer" <oliver@xxxxxxxxxxxx> wrote...
 
>As soon as there is I/O load on the HBA, I start seeing
> 
>qla2300 0000:01:03.0: qla2xxx_eh_abort: cmd already done sp=0000000000000000
> 
>messages every few seconds, eventually leading to complete system lockups after
>several minutes up to several hours, due to kernel NULL pointer dereferences
>in qla2x00_cmd_timeout().
 
> I've tested and reproduced the error on the following kernels, all
> compiled for x86_64.
> 2.6.8.1
> 2.6.9-rc1-mm5 (with dma_fixups patch posted by Andrew Vasquez on 13.9)
> 2.6.9-rc2 

2.6.9-rc2-mm2 seems to have fixed the problem.
It is rather puzzling since the difference in the qla2xxx driver between
2.6.9-rc1-mm5+qlogic-oops-fix and 2.6.9-rc2-mm2 is rather minimal. Maybe
the problem was caused by some other part of the kernel that has now
been fixed.



-- 
	Oliver M. Bolzer
	oliver@xxxxxxx

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