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

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Message-ID: <alpine.LFD.2.00.0907091943290.2768@localhost.localdomain>
Date:	Thu, 9 Jul 2009 19:44:33 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Andres Freund <andres@...razel.de>
cc:	Jarek Poplawski <jarkao2@...il.com>,
	Joao Correia <joaomiguelcorreia@...il.com>,
	Arun R Bharadwaj <arun@...ux.vnet.ibm.com>,
	Stephen Hemminger <shemminger@...tta.com>,
	netdev@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	Patrick McHardy <kaber@...sh.net>,
	Peter Zijlstra <peterz@...radead.org>
Subject: Re: Soft-Lockup/Race in networking in 2.6.31-rc1+195 ( possibly?caused
 by netem)

Andres,

On Thu, 9 Jul 2009, Andres Freund wrote:

> On Thursday 09 July 2009 18:01:56 Thomas Gleixner wrote:
> > Andres,
> >
> > On Thu, 9 Jul 2009, Andres Freund wrote:
> > > On Thursday 09 July 2009 16:28:05 Thomas Gleixner wrote:
> > > > Please test them separate from each other. The one I sent in this
> > > > thread was just for narrowing down the issue, but I'm now quite sure
> > > > that they really hit the issue which is addressed by the hrtimer
> > > > patch.
> > >
> > > No crash yet. 15min running (seconds to a minute before).
> > >
> > > Will let it run for some hours to be sure.
> >
> > Which one of the patches are you testing ?
> Your "real" one, i.e. de907e8432b08f2d5966c36e0747e97c0e596810
> 
> 1h30m now...

Looks like I hit the nail on the head. Queueing it up for Linus.

Thanks,

	tglx
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