linux-kernel - Re: [PATCH RT 00/12] [ANNOUNCE] 3.0.36-rt58-rc1 stable review

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Date:	Thu, 19 Jul 2012 15:51:39 +0200
From:	Mike Galbraith <efault@....de>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	linux-kernel@...r.kernel.org,
	linux-rt-users <linux-rt-users@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Carsten Emde <C.Emde@...dl.org>, John Kacur <jkacur@...hat.com>
Subject: Re: [PATCH RT 00/12] [ANNOUNCE] 3.0.36-rt58-rc1 stable review

On Thu, 2012-07-19 at 09:05 -0400, Steven Rostedt wrote: 
> On Thu, 2012-07-19 at 06:00 +0200, Mike Galbraith wrote:
> > On Wed, 2012-07-18 at 18:39 -0400, Steven Rostedt wrote:
> > 
> > > Please test the patches too.
> > 
> > Your hotplug stress test script made x3550 M3 box fall over.  It took a
> > bit, but down she went.  64 core test box fell over quickly, but that's
> > very far from virgin source.. seems to be the same though.
> 
> Thanks for the report. I know a few areas in the hotplug code that can
> still deadlock (but are hard to hit). But there's no easy fix for them.
> Basically, the only thing we can do is redesign cpu hotplug (I think
> someone is already trying to do that ;-).

Every kernel I've fed you script to has died sooner or later, so I wish
him fair sailing.  Here there be sea monsters ;-)

-Mike

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