From: Thomas Gleixner <tglx@linutronix.de>
To: Pavel Machek <pavel@ucw.cz>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>,
Jeff Chua <jeff.chua.linux@gmail.com>,
rusty@rustycorp.com.au, vatsa@in.ibm.com, zwane@arm.linux.org.uk,
kernel list <linux-kernel@vger.kernel.org>,
Len Brown <lenb@kernel.org>
Subject: Re: cpu hotplug support broken in 2.6.23-rc3
Date: Fri, 14 Sep 2007 15:15:43 +0200 [thread overview]
Message-ID: <1189775743.3100.9.camel@chaos> (raw)
In-Reply-To: <1189774257.3100.7.camel@chaos>
On Fri, 2007-09-14 at 14:50 +0200, Thomas Gleixner wrote:
> Pavel,
>
> On Fri, 2007-09-14 at 14:38 +0200, Pavel Machek wrote:
> > > I have an yet untested fix, which preserves the broadcast state across
> > > the offline state, but Len is looking into it as well, whether we can
> > > just reevaluate the power states (and the broadcast flags) when a cpu
> > > becomes online again. If Len can do that easily for 2.6.23, I'd prefer
> > > that.
> >
> > Is there a patch you want me to test? Or does Len have anything to
> > play with?
>
> Venki sent me an initial patch, but it has issues with the notify
> ordering. Find below my "cache the broadcast flags" version for testing.
Hmmpf, the flag is still cleared when the cpu goes offline. Need to take
a closer look.
tglx
next prev parent reply other threads:[~2007-09-14 13:15 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 [this message]
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
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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