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Date:	Sat, 12 Dec 2009 23:31:10 +0100 (CET)
From:	Thomas Gleixner <>
To:	Linus Torvalds <>
cc:	Alan Cox <>,
	Andrew Morton <>,
	Ingo Molnar <>, Greg KH <>,
	Peter Zijlstra <>,
Subject: Re: [GIT PATCH] TTY patches for 2.6.33-git

On Sat, 12 Dec 2009, Linus Torvalds wrote:
> On Sat, 12 Dec 2009, Thomas Gleixner wrote:
> > 
> > Just patched the following in and it catched your problem nicely. With
> > your AB/BA fix patch applied everything is fine.
> Actually, the patch I just suggested might be better. Admittedly the 
> CONFIG_PREEMPT case is the more important one (and the one that will catch 
> more cases), but even without preemptyion the might_sleep() in 
> _lock_kernel() (one underscore) would trigger on the case of somebody 
> doing lock_kernel with local interrupts disabled.

Fair enough.

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