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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
Date: Mon, 3 Sep 2007 03:58:54 +0000	[thread overview]
Message-ID: <20070903035854.GD3655@ucw.cz> (raw)
In-Reply-To: <20070829080827.GD6832@in.ibm.com>

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

  reply	other threads:[~2007-09-03 10:08 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-08-27 10:43 cpu hotplug support broken in 2.6.23-rc3 Pavel Machek
2007-08-27 10:58 ` Pavel Machek
2007-08-27 14:36   ` Jeff Chua
2007-08-27 15:22     ` Michal Piotrowski
2007-08-27 21:32     ` Pavel Machek
2007-08-27 21:59       ` Rafael J. Wysocki
2007-08-27 21:58         ` Pavel Machek
2007-08-28 10:30           ` Rafael J. Wysocki
2007-08-28 13:00             ` Akinobu Mita
2007-08-28 14:21       ` Jeff Chua
2007-09-03  3:47         ` Pavel Machek
2007-09-03 10:19           ` Rafael J. Wysocki
2007-09-03 12:35             ` Thomas Gleixner
2007-09-04  7:27               ` Pavel Machek
2007-09-13 20:01                 ` Thomas Gleixner
2007-09-14 12:38                   ` Pavel Machek
2007-09-14 12:50                     ` Thomas Gleixner
2007-09-14 13:15                       ` Thomas Gleixner
2007-09-15  9:49                         ` Thomas Gleixner
2007-09-15 10:18                           ` Andrew Morton
2007-09-15 13:28                             ` Thomas Gleixner
2007-09-15 22:01                               ` Andrew Morton
2007-09-15 13:44                             ` Thomas Gleixner
2007-10-02  9:45                           ` Pavel Machek
2007-09-14 18:49                       ` Pallipadi, Venkatesh
2007-09-14 19:18                         ` Thomas Gleixner
2007-09-03  3:56         ` highres timers break cpu hotplug in 2.6.23-rc5 [was Re: cpu hotplug support broken in 2.6.23-rc3] Pavel Machek
2007-09-03 12:34           ` Jeff Chua
2007-08-29  8:08 ` cpu hotplug support broken in 2.6.23-rc3 Gautham R Shenoy
2007-09-03  3:58   ` Pavel Machek [this message]
2007-11-15 22:37     ` cpu hotplug strangeness in 2.6.24-rc2 (was Re: cpu hotplug support broken in 2.6.23-rc3) Pavel Machek

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