linux-kernel - Re: CPU hotplug: system hang on CPU hot remove during `pfmon --system-wide'

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Message-ID: <20070528065550.GL6157@in.ibm.com>
Date:	Mon, 28 May 2007 12:25:50 +0530
From:	Srivatsa Vaddagiri <vatsa@...ibm.com>
To:	Satoru Takeuchi <takeuchi_satoru@...fujitsu.com>
Cc:	Linux Kernel <linux-kernel@...r.kernel.org>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Zwane Mwaikambo <zwane@....linux.org.uk>,
	Nathan Lynch <nathanl@...tin.ibm.com>,
	Joel Schopp <jschopp@...tin.ibm.com>,
	Ashok Raj <ashok.raj@...el.com>,
	Heiko Carstens <heiko.carstens@...ibm.com>,
	Gautham R Shenoy <ego@...ibm.com>, akpm@...ux-foundation.org,
	torvalds@...ux-foundation.org, Dipankar <dipankar@...ibm.com>
Subject: Re: CPU hotplug: system hang on CPU hot remove during `pfmon --system-wide'

On Mon, May 28, 2007 at 10:54:43AM +0900, Satoru Takeuchi wrote:
> Since I'm investigating this problem now, I'm glad if someone
> reports the test result on other arch or freezer.

I suspect the freezer based approach will not have this problem. Gautham
could probably verify that.

Andrew/Linus,
	So is it settled now on what approach we are going to follow (freezer 
vs lock based) for cpu hotplug? I thought that Linus was not favouring freezer 
based approach sometime back ..

-- 
Regards,
vatsa
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