From: Ingo Molnar <mingo@elte.hu>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Miklos Vajna <vmiklos@frugalware.org>,
Mike Galbraith <efault@gmx.de>,
shenghui <crosslonelyover@gmail.com>,
kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org,
Greg KH <greg@kroah.com>
Subject: Re: [PATCH] avoid race condition in pick_next_task_fair in
Date: Wed, 22 Dec 2010 17:16:55 +0000 [thread overview]
Message-ID: <20101222171655.GB25611@elte.hu> (raw)
In-Reply-To: <1293037718.2170.155.camel@laptop>
* Peter Zijlstra <peterz@infradead.org> wrote:
> On Wed, 2010-12-22 at 16:14 +0100, Miklos Vajna wrote:
> > kernel-build is a git build using the config I already sent and after a
> > 'git checkout v2.6.36'. I can try to build master as well, so far what I
> > saw is that the bug occurs there as well, but less frequently, so maybe
> > that's a bit harder to debug.
>
> Right, so I've got v2.6.36 exploding, current -git and -tip won't
> explode for me, tried both about 20 times. So I'll try and figure out
> wth makes .36 explode and then see if further kernel still suffer that
> problem.
Does it explode if you change some of the CONFIG_CC flags, such as
CONFIG_CC_OPTIMIZE_FOR_SIZE? I.e. is the crash dependent on the precise kernel image
layout perhaps? If it's sensitive to that then this might keep you from chasing
shadows ...
Thanks,
Ingo
next prev parent reply other threads:[~2010-12-22 17:16 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-29 7:10 [PATCH] avoid race condition in pick_next_task_fair in shenghui
2010-06-29 10:43 ` Peter Zijlstra
2010-06-29 11:24 ` shenghui
2010-06-29 11:35 ` Peter Zijlstra
2010-06-29 12:44 ` shenghui
2010-12-19 2:03 ` Miklos Vajna
2010-12-22 0:22 ` Miklos Vajna
2010-12-22 8:29 ` Peter Zijlstra
2010-12-22 8:41 ` Peter Zijlstra
2010-12-22 8:41 ` Mike Galbraith
2010-12-22 9:07 ` Peter Zijlstra
2010-12-22 13:31 ` Miklos Vajna
2010-12-22 14:00 ` Peter Zijlstra
2010-12-22 14:11 ` Peter Zijlstra
2010-12-22 15:14 ` Miklos Vajna
2010-12-22 15:25 ` Peter Zijlstra
2010-12-22 17:08 ` Peter Zijlstra
2010-12-22 17:16 ` Ingo Molnar [this message]
2010-12-22 17:25 ` Peter Zijlstra
2010-12-22 20:36 ` Peter Zijlstra
2010-12-23 2:08 ` [PATCH] avoid race condition in pick_next_task_fair in kernel/sched_fair.c Yong Zhang
2010-12-23 12:12 ` [PATCH] avoid race condition in pick_next_task_fair in Peter Zijlstra
2010-12-23 12:33 ` Peter Zijlstra
2010-12-23 18:24 ` Peter Zijlstra
[not found] ` <1293132304.6798.6.camel@marge.simson.net>
[not found] ` <1293132862.25981.22.camel@laptop>
[not found] ` <1293187425.7138.2.camel@marge.simson.net>
[not found] ` <1293188091.25981.200.camel@laptop>
[not found] ` <1293192999.18035.4.camel@marge.simson.net>
2010-12-24 15:59 ` [PATCH] sched, cgroup: Use exit hook to avoid use-after-free crash Peter Zijlstra
2010-12-24 16:40 ` [PATCH] sched, cgroup: Use exit hook to avoid use-after-free Miklos Vajna
2010-12-24 16:48 ` Mike Galbraith
2010-12-24 17:07 ` Peter Zijlstra
2010-12-24 17:24 ` Mike Galbraith
2010-12-25 18:07 ` Balbir Singh
2010-12-25 20:59 ` [PATCH] sched, cgroup: Use exit hook to avoid use-after-free crash Paul Menage
2011-01-03 7:06 ` [PATCH] sched, cgroup: Use exit hook to avoid use-after-free Peter Zijlstra
2010-12-29 15:25 ` Ingo Molnar
2010-12-31 8:32 ` [PATCH] Re: [PATCH] sched, cgroup: Use exit hook to avoid Mike Galbraith
2011-01-03 8:21 ` Peter Zijlstra
[not found] ` <20101229230744.GA10557@genesis.frugalware.org>
2010-12-31 10:04 ` [PATCH] sched, cgroup: Use exit hook to avoid use-after-free Mike Galbraith
2010-12-31 10:46 ` Miklos Vajna
2010-12-22 21:11 ` [PATCH] avoid race condition in pick_next_task_fair in Miklos Vajna
2010-12-22 23:39 ` Miklos Vajna
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