linux-kernel - Re: v2.6.21.4-rt11

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Message-ID: <20070619143331.GH17865@linux.vnet.ibm.com>
Date:	Tue, 19 Jun 2007 20:03:31 +0530
From:	Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Dinakar Guniguntala <dino@...ibm.com>,
	Dmitry Adamushko <dmitry.adamushko@...il.com>,
	suresh.b.siddha@...el.com, pwil3058@...pond.net.au,
	clameter@....com, linux-kernel@...r.kernel.org,
	akpm@...ux-foundation.org
Subject: Re: v2.6.21.4-rt11

On Tue, Jun 19, 2007 at 11:04:30AM +0200, Ingo Molnar wrote:
> I'm wondering, why did this trigger under CFS and not on mainline? 
> Mainline seems to have a similar problem in idle_balance() too, or am i 
> misreading it?

The problem is there in mainline very much. I could recreate the problem
with 2.6.22-rc5 (which doesnt have CFS) on that same hardware, with
CONFIG_NUMA enabled.

Let me know if you needed anything else to be clarified.

-- 
Regards,
vatsa
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