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Date: Wed, 2 Nov 2011 19:30:49 +0100 (CET)
From: Thomas Gleixner <tglx@linutronix.de>
To: Simon Kirby <sim@hostway.ca>
cc: David Miller <davem@davemloft.net>,
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Subject: Re: Linux 3.1-rc9
In-Reply-To: <20111102182812.GE5971@hostway.ca>
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On Wed, 2 Nov 2011, Simon Kirby wrote:
> On Wed, Nov 02, 2011 at 05:40:53PM +0100, Thomas Gleixner wrote:
> Ok, I'll try this. Hmm, all CPUs typically try to grab the lock fairly
> quickly after it happens, which could make it difficult to cat the file.
> I'll try ftrace_dump(DUMP_ALL); in there instead.

Eric has spotted the source of trouble already. Can you try his patch
first? If it still persists, we still can resort to hardcore tracing :)

Thanks,

	tglx