Messages in this thread | | | Subject | RE: cpu hotplug support broken in 2.6.23-rc3 | Date | Fri, 14 Sep 2007 11:49:17 -0700 | From | "Pallipadi, Venkatesh" <> |
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>-----Original Message----- >From: linux-kernel-owner@vger.kernel.org >[mailto:linux-kernel-owner@vger.kernel.org] On Behalf Of >Thomas Gleixner >Sent: Friday, September 14, 2007 5:51 AM >To: Pavel Machek >Cc: Rafael J. Wysocki; Jeff Chua; rusty@rustycorp.com.au; >vatsa@in.ibm.com; zwane@arm.linux.org.uk; kernel list; Len Brown >Subject: Re: cpu hotplug support broken in 2.6.23-rc3 > >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. >
While wirting that patch, I knew solution could not be that simple :(. Does the patch work for online offline case atleast? Will look at the Suspend/Resume ordering part in that case.
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