Subject: Re: [PATCH] race condition in procfs
From: Steven Rostedt <rostedt@goodmis.org>
To: Grzegorz Nosek <grzegorz.nosek@gmail.com>
Cc: vserver@list.linux-vserver.org, linux-kernel@vger.kernel.org,
       Andrew Morton <akpm@osdl.org>
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	 <20051129000916.6306da8b.akpm@osdl.org>
	 <121a28810511290038h37067fecx@mail.gmail.com>
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Date: Tue, 29 Nov 2005 09:28:44 -0500
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On Tue, 2005-11-29 at 15:04 +0100, Grzegorz Nosek wrote:
> 2005/11/29, Grzegorz Nosek <grzegorz.nosek@gmail.com>:
> >
> > Oh well, I got another oops in the very same place with the patch
> > applied. So now I surrounded the check with
> > read_[un]lock(&tasklist_lock) and added a check to do_task_stat (both
> > now have a printk). If it builds, boots and doesn't crash, I'll post
> > the patch.
> 
> Froze solid a minute after booting :( netconsole didn't log anything
> either. Back to the drawing board.

Have you seen this crash the vanilla kernel?  What exactly are you doing
to see the crash? If you have a script or something, could you post it.
I could spend some time helping you debug it too on one of my SMP boxes.

-- Steve


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