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Subject2.4.22pre8 hangs too (Re: 2.4.21-jam1, aic7xxx-6.2.36: solid hangs)
On Tue, Jul 29, 2003 at 10:39:48AM +0300, you [Ville Herva] wrote:
> After about a year of stable operation, a server begun acting up. First it
> begun hanging up solid during the nightly oracle backup (that had run
> successfully for a year), the I got some aic7xxx-related crashes on boot.
>
> Initially, the box ran 2.4.20pre7 kernel with aic7xxx version 6.4.8. When
> the hangs started happening, I upgraded to 2.4.21-jam1 (basically 2.4.21
> vanilla + -aa patch + some minor stuff) that includes aic7xxx version 6.2.36.
> It did not help.
>
> I enabled kmsgdump and nmi watchdog, but when the box hangs, it hangs solid:
> no ctrl-alt-del, no caps lock led, no alt-sysrq-b, no kmsgdump, nmi watchdog
> doesn't trigger. Only the cursor on the console blinks, but no messages from
> the kernel appear. (Apart from "spurious 8259A interrupt: IRQ7." that
> always happens sometime after boot on this box, but way before the hang.)

Herbert Pötzl indicted that he'd had similar lockups with fairly similar hw
up until 2.4.22pre6. He suggested I should try 2.4.22pre8.

2.4.22pre8 locked up the same way in about 10 hours.

> Any ideas on how to to debug this kind of hang?

The question still stands; how do I debug this?

> Does it sound kernel/driver or hw related? Are the two crashes related to
> the hang? Is the hang related to aic7xxx?

Any ideas?



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