Re: 2.4.22pre8 hangs too (Re: 2.4.21-jam1, aic7xxx-6.2.36: solid hangs)

[Marcelo Tosatti <marcelo@conectiva.com.br>]

On Wed, 30 Jul 2003, Ville Herva wrote:

> 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?

Ville,

Mind trying 2.4.22-pre8 without MMAPIO defined in the SCSI driver?

Justin, is this problem known to other boards or.. ?