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Date: Thu, 29 Mar 2007 20:38:57 +0200
From: Ingo Molnar <mingo@elte.hu>
To: Mariusz =?utf-8?Q?Koz=C5=82owski?= <m.kozlowski@tuxland.pl>
Cc: Andrew Morton <akpm@linux-foundation.org>, Adrian Bunk <bunk@stusta.de>,
       linux-kernel@vger.kernel.org, Thomas Gleixner <tglx@linutronix.de>,
       john stultz <johnstul@us.ibm.com>, Matt Mackall <mpm@selenic.com>
Subject: Re: 2.6.21-rc5-mm1
Message-ID: <20070329183857.GA13362@elte.hu>
References: <20070326205706.a750bb35.akpm@linux-foundation.org> <200703292001.41255.m.kozlowski@tuxland.pl> <20070329105233.31adb052.akpm@linux-foundation.org> <200703292045.13140.m.kozlowski@tuxland.pl>
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* Mariusz Kozłowski <m.kozlowski@tuxland.pl> wrote:

> > > This is verified and repeatable _every_ single time I tried. 
> > > Unfortunately the last thing seen on the screen before system is 
> > > frozen is 'eth0: link down'. So my guess is that when hunting for 
> > > hangs I found something else that can hang my laptop (netconsole 
> > > that is).
> > 
> > fix-sysfs-reclaim-crash.patch is known-bad.  Did you try reverting 
> > that?
> 
> Yes, just tested it. Sorry. It doesn't change anything.

could you try a !CONFIG_SMP kernel to make sure it's not some 
self-locking of netconsole that is interfering? (Is it perhaps the 
'eth0: link down' message that is trigger from within netconsole?)

	Ingo