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Date: Tue, 12 Jul 2011 15:57:32 -0400
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: paulmck@linux.vnet.ibm.com, Jeremy Fitzhardinge <jeremy@goop.org>,
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        julie Sullivan <kernelmail.jms@gmail.com>,
        linux-kernel@vger.kernel.org, chengxu@linux.vnet.ibm.com
Subject: Re: PROBLEM: 3.0-rc kernels unbootable since -rc3
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On Tue, Jul 12, 2011 at 09:10:36PM +0200, Peter Zijlstra wrote:
> On Tue, 2011-07-12 at 11:59 -0700, Paul E. McKenney wrote:
> > OK, so the infinite loop in task_waking_fair() happens even if RCU callbacks
> > are deferred until after the scheduler is fully initialized.  Sounds like
> > one for the scheduler guys.  ;-) 
> 
> https://lkml.org/lkml/2011/7/12/150

Such a simple patch. And yes, it fixes the issue. You can add
Tested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> if it hasn't yet
showed up in Ingo's tree.

Paul, thanks for help on this and providing ideas to test!