linux-kernel - Re: x86 instability with 2.6.1{8,9}

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Message-ID: <20070131232641.GA26331@deepthought>
Date:	Wed, 31 Jan 2007 23:26:41 +0000
From:	Ken Moffat <zarniwhoop@...world.com>
To:	Chuck Ebbert <cebbert@...hat.com>
Cc:	Randy Dunlap <randy.dunlap@...cle.com>,
	Len Brown <lenb@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: x86 instability with 2.6.1{8,9}

On Wed, Jan 31, 2007 at 04:36:30PM -0500, Chuck Ebbert wrote:
> Ken Moffat wrote:
> > On Mon, Jan 15, 2007 at 04:29:11PM +0000, Ken Moffat wrote:
> >   
> >  Bizarre - it panic'd again last Thursday while I was in X, but I
> > still didn't manage to log any output.  At the weekend, I had the
> > bright idea of using chattr +j on the syslog to try to journal any
> > data, since then it has been fine.  So, it isn't down to highmem, and
> > I still can't trigger it reliably, or get any trace.  Tried running
> > as x86_64 this morning (because cold starts on Thursdays seem
> > particularly problematic, perhaps it's a time/power-supply-noise
> > problem), then x86 from a cold start this afternoon.
> >
> >  Time to hope it won't bite me too often, and move on to testing
> > 2.6.20-rc6.
> >
> > Ken
> >   
> Try disabling preempt.

 Thanks for the suggestion - any particular reason ?  That box is
running as 64-bit at the moment, and likely to stay that way for the
rest of this week while it builds userspace, but I'm not averse to
running 32-bit on it again if it serves a purpose.

 However, in the vain hope I can actually get it to log something,
wouldn't it be more useful to continue running _with_ preempt ?

 I'm starting to think it might have been yet another victim of the
solar flares, and the fact it was always running a 32-bit kernel
could have been coincidence.

Ken 
-- 
das eine Mal als Tragödie, das andere Mal als Farce
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