linux-kernel - Re: 2.6.21-rc5-mm4

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Date:	Wed, 4 Apr 2007 18:10:02 +0200 (CEST)
From:	Jiri Kosina <jikos@...os.cz>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, e1000-devel@...ts.sourceforge.net,
	Len Brown <len.brown@...el.com>,
	Natalie Protasevich <nataliep@...gle.com>,
	Andi Kleen <ak@...e.de>,
	Michal Piotrowski <michal.k.k.piotrowski@...il.com>,
	auke-jan.h.kok@...el.com
Subject: Re: 2.6.21-rc5-mm4

On Tue, 3 Apr 2007, Jiri Kosina wrote:

> > we're also having problems reproducing it on that same combination 
> > (2.6.21-rc4 + my tree), so it points to something in -mm. Since your 
> > trace is completely different right now it looks like something else 
> > is fuzzing it up. Since the e1000 changes are in rc5-mm3 as well, that 
> > might help to narrow it down quickly.
> I don't know (yet) whether rc5-mm3 was OK in this respect, I didn't boot 
> it on this machine. I only know that both rc5 and rc5 + e1000 tree are 
> OK, but rc5-mm4 panics on ifconfig/dhclient on e1000 card immediately on 
> my system.
> I will start bisection when I get back to the respective machine 
> (tomorrow) and will let you know.

And the bisection winner is

	i386-irq-kill-nr_irq_vectors-and-increase-nr_irqs.patch

I don't immediately see how it could be causing it, so adding CCs which 
are listed in the patch.

Original description of the symptoms at http://lkml.org/lkml/2007/4/3/90

-- 
Jiri Kosina
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