Re: [UPDATED PATCH] Fix check for valid stack pointer during backtrace

linux-mips

Re: [UPDATED PATCH] Fix check for valid stack pointer during backtrace

To:	Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Subject:	Re: [UPDATED PATCH] Fix check for valid stack pointer during backtrace
From:	Ralf Baechle <ralf@linux-mips.org>
Date:	Thu, 15 May 2008 10:31:33 +0100
Cc:	linux-mips@linux-mips.org
In-reply-to:	<20080512155849.29DB4DE534@solo.franken.de>
Original-recipient:	rfc822;linux-mips@linux-mips.org
References:	<20080512155849.29DB4DE534@solo.franken.de>
Sender:	linux-mips-bounce@linux-mips.org
User-agent:	Mutt/1.5.17 (2007-11-01)

On Mon, May 12, 2008 at 05:58:48PM +0200, Thomas Bogendoerfer wrote:

> The newly added check for valid stack pointer address breaks at least for
> 64bit kernels.  Use __get_user() for accessing stack content to avoid crashes,
> when doing the backtrace.
> 
> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

Applied.  Thanks,

  Ralf

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