Date: Mon, 3 Sep 2007 03:58:54 +0000
From: Pavel Machek <pavel@ucw.cz>
To: Gautham R Shenoy <ego@in.ibm.com>
Cc: rusty@rustycorp.com.au, vatsa@in.ibm.com, zwane@arm.linux.org.uk,
       kernel list <linux-kernel@vger.kernel.org>,
       "Rafael J. Wysocki" <rjw@sisk.pl>
Subject: Re: cpu hotplug support broken in 2.6.23-rc3
Message-ID: <20070903035854.GD3655@ucw.cz>
References: <20070827104350.GA2073@elf.ucw.cz> <20070829080827.GD6832@in.ibm.com>
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On Wed 2007-08-29 13:38:27, Gautham R Shenoy wrote:
> Hi Pavel,
> On Mon, Aug 27, 2007 at 12:43:50PM +0200, Pavel Machek wrote:
> > Hi!
> > 
> > Trying to do few onlines/offlines reliably hangs my machine (thinkpad
> > x60, i386 architecture).
> > 
> 
> That's strange. 
> 
> I've been running cpu offline/online tests with kern bench, 
> cpufreq-ondemand and a few rt-tasks running in the background
> and it has worked for me. 
> Something like 100 iterations without a problem. But these were on
> machines with 4-8 cpus.  So may be this could be something specific to
> the dual cpu machine.

Seems like it is specific to nohz/highrestimers. 

> Can you post the .config? I'll try to recreate it?

Will send privately.

> > Plus I guess it would be nice to add CPU HOTPLUG into MAINTAINERS
> > file:
> > 
> 
> There is a list of maintainers in the Documentation/cpu-hotplug.txt, 
> which includes maintainers for different platforms as well.
> 
> It's a good idea to add that info to the MAINTAINERS file as well.

Yes, please.

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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