linux-kernel - Re: [PATCH] kthread: Prevent unpark race which puts threads on the wrong cpu

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Message-ID: <51647C30.3050109@sr71.net>
Date:	Tue, 09 Apr 2013 13:38:08 -0700
From:	Dave Hansen <dave@...1.net>
To:	Thomas Gleixner <tglx@...utronix.de>
CC:	Borislav Petkov <bp@...en8.de>,
	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Dave Jones <davej@...hat.com>, dhillf@...il.com,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...nel.org>
Subject: Re: [PATCH] kthread: Prevent unpark race which puts threads on the
 wrong cpu

On 04/09/2013 12:30 PM, Thomas Gleixner wrote:
> On Tue, 9 Apr 2013, Thomas Gleixner wrote:
> Thought more about it and found, that the stupid binding only works
> when the task is really descheduled. So there is a small window left,
> which could lead to this. Revised patch below.
> 
> Anyway a trace for that issue would be appreciated nevertheless.

Here you go:

	http://sr71.net/~dave/linux/bigbox.1365539189.txt.gz

It oopsed in exit.c:

https://picasaweb.google.com/lh/photo/7v_Xua9I29Rar3bBdNlLu9MTjNZETYmyPJy0liipFm0?feat=directlink


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