Date: Wed, 30 Jul 2003 11:50:50 -0300 (BRT)
From: Marcelo Tosatti <marcelo@conectiva.com.br>
To: Ville Herva <vherva@niksula.hut.fi>
Cc: linux-kernel@vger.kernel.org, gibbs@scsiguy.com
Subject: Re: 2.4.22pre8 hangs too (Re: 2.4.21-jam1, aic7xxx-6.2.36: solid
 hangs)
In-Reply-To: <20030730071321.GV150921@niksula.cs.hut.fi>
Message-ID: <Pine.LNX.4.55L.0307301149550.29648@freak.distro.conectiva>
References: <20030729073948.GD204266@niksula.cs.hut.fi>
 <20030730071321.GV150921@niksula.cs.hut.fi>
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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 P?tzl 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.. ?
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