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

From: Mike Galbraith
Date: Thu Jul 19 2012 - 09:51:38 EST


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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