linux-kernel - Re: Soft-Lockup/Race in networking in 2.6.31-rc1+195 (possibly caused by netem)

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Message-ID: <20090702101207.GA7056@ff.dom.local>
Date:	Thu, 2 Jul 2009 10:12:07 +0000
From:	Jarek Poplawski <jarkao2@...il.com>
To:	Andres Freund <andres@...razel.de>
Cc:	LKML <linux-kernel@...r.kernel.org>, netdev@...r.kernel.org,
	Stephen Hemminger <shemminger@...tta.com>,
	Patrick McHardy <kaber@...sh.net>
Subject: Re: Soft-Lockup/Race in networking in 2.6.31-rc1+195 (possibly
	caused by netem)

On Thu, Jul 02, 2009 at 09:30:31AM +0000, Jarek Poplawski wrote:
> On Thu, Jul 02, 2009 at 02:37:24AM +0200, Andres Freund wrote:
> ...
> > So I tried - and I did not catch any lockdep output before the crash.  
> > Unfortunately I do not have another machine on the same local network to  
> > catch any messages after the crash... So I could be missing some warning  
> > (I did synchronous logging though).
> > Will check with netconsole tomorrow.
> 
> Could you try if this patch changes anything?

...and maybe CONFIG_PACKET_MMAP turned off.

Jarek P.
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