linux-kernel - Re: rcu_preempt running flat out on idle desktop.

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Message-ID: <20130701121053.GD7246@somewhere.redhat.com>
Date:	Mon, 1 Jul 2013 14:10:56 +0200
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	Dave Jones <davej@...hat.com>, paulmck@...ux.vnet.ibm.com,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: rcu_preempt running flat out on idle desktop.

On Sun, Jun 23, 2013 at 12:58:39PM +0200, Ingo Molnar wrote:
> 
> * Dave Jones <davej@...hat.com> wrote:
> 
> > On Wed, Jun 12, 2013 at 11:34:07AM -0400, Dave Jones wrote:
> >  > On Thu, Jun 06, 2013 at 05:43:13PM +0200, Frederic Weisbecker wrote:
> >  > 
> >  >  > > Every process 200% or 0%.
> >  >  > 
> >  >  > I see, would you mind testing this branch?
> >  >  > 
> >  >  > git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
> >  >  > 	timers/urgent
> >  >  > 
> >  >  > It might help, I specially think about 45eacc692771bd2b1ea3d384e6345cab3da10861
> >  >  > ("vtime: Use consistent clocks among nohz accounting") which fixes an issue
> >  >  > with cputime accounting that resulted in similar symptoms.
> >  > 
> >  > So that patch has been in 'urgent' for a month. Can someone move it
> >  > to really-urgent or whatever is necessary to get it into Linus' tree ?
> > 
> > Another week passes...
> 
> It was sent to Linus two days before your mail and Linus merged it at 
> around the time you wrote your mail.
> 
> So it should be all in -rc7, unless I'm missing something?

Ah sorry I missed that merge. It's all fine indeed.

Thanks!
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