linux-kernel - Re: 2.6.21-rc5-mm1

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Date:	Thu, 29 Mar 2007 21:02:56 +0200
From:	Mariusz Kozłowski <m.kozlowski@...land.pl>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Adrian Bunk <bunk@...sta.de>, linux-kernel@...r.kernel.org,
	Thomas Gleixner <tglx@...utronix.de>,
	john stultz <johnstul@...ibm.com>,
	Matt Mackall <mpm@...enic.com>
Subject: Re: 2.6.21-rc5-mm1

> > > > 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?)

This is from .config:

# CONFIG_SMP is not set

Can this be that 'link down' is emitted by netconsole when the link is
already down and kernel gets locked? Does it make any sense?

	Mariusz
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