Date: Thu, 15 Nov 2007 13:28:55 -0800 (PST)
From: Christoph Lameter <clameter@sgi.com>
To: Micah Dowty <micah@vmware.com>
cc: Kyle Moffett <mrmacman_g4@mac.com>, Cyrus Massoumi <cyrusm@gmx.net>,
       LKML Kernel <linux-kernel@vger.kernel.org>, Ingo Molnar <mingo@elte.hu>,
       Andrew Morton <akpm@osdl.org>, Mike Galbraith <efault@gmx.de>,
       Paul Menage <menage@google.com>
Subject: Re: High priority tasks break SMP balancer?
In-Reply-To: <20071115202425.GC4914@vmware.com>
Message-ID: <Pine.LNX.4.64.0711151328090.29711@schroedinger.engr.sgi.com>
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 <20071110001103.GD16250@vmware.com> <2FAA6826-653E-482F-A037-C539BAEEA1DA@mac.com>
 <20071115191408.GA4914@vmware.com> <Pine.LNX.4.64.0711151206370.28639@schroedinger.engr.sgi.com>
 <20071115202425.GC4914@vmware.com>
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On Thu, 15 Nov 2007, Micah Dowty wrote:

> Yes, the Python test harness crashes, not the kernel. It's just
> because on a kernel which exhibits this SMP balancer bug, within a
> couple of test iterations I'll hit a case where cpu1 was almost
> totally idle and the test harness divides by zero when calculating the
> imbalance.

I still have some problem understanding what you are complaining about? 
The patch that you bisected had some issues that were fixed later by 
Siddha.

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