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Date:	Wed, 20 Feb 2008 09:11:16 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Marcel Holtmann <marcel@...tmann.org>
cc:	Quel Qun <kelk1@...cast.net>, LKML <linux-kernel@...r.kernel.org>,
	Jiri Kosina <jkosina@...e.cz>, Ingo Molnar <mingo@...e.hu>
Subject: Re: Kernel oops with bluetooth usb dongle

On Wed, 20 Feb 2008, Thomas Gleixner wrote:
> On Tue, 19 Feb 2008, Marcel Holtmann wrote:
> > I don't really have any idea. Nothing has been changed in this area for a
> > couple of years. The command TX timeout is the timeout that indicates a
> > missing answer to a command sent down to the Bluetooth chip.
> > 
> > However this involves some atomic and tasklet stuff. Did we have some changes
> > that I missed and might now render this usage as broken.
> 
> Not that I'm aware off, but this might as well be some old use after
> free bug which got exposed by some unrelated change. The good news is
> that it is reproducible. I'll hack up some nasty debug patch which
> lets us - hopefully - decode where the timer was armed.

Quel, before I do that, is there any chance that you retest with the
latest mainline git version ?

http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.25-rc2-git4.bz2

Is the delta which applies on top of rc2.

Thanks,

	tglx
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