linux-kernel - Re: 2.6.34-rc1 eat my photo SD card :-(

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Message-ID: <20071108065421.6ec73218@poseidon.drzeus.cx>
Date:	Thu, 8 Nov 2007 06:54:21 +0100
From:	Pierre Ossman <drzeus-mmc@...eus.cx>
To:	Roland Dreier <roland@...italvampire.org>
Cc:	Romano Giannetti <romanol@...omillas.es>, Willy Tarreau <w@....eu>,
	linux-kernel@...r.kernel.org, jens.axboe@...cle.com
Subject: Re: 2.6.34-rc1 eat my photo SD card :-(

On Wed, 07 Nov 2007 15:37:46 -0800
Roland Dreier <roland@...italvampire.org> wrote:

> 
> mmc: Fix sg helper copy-and-paste error
> 
> Commit 45711f1a ("[SG] Update drivers to use sg helpers") had the
> following bogus change in drivers/mmc/card/queue.c:
> 
>     > -			src_buf = page_address(src->page) + src->offset;
>     > +			src_buf = sg_virt(dst);
> 
> (Notice that "src" is converted to "dst").  Turn this "dst" back into
> the intended "src".
> 
> Cc: Jens Axboe <jens.axboe@...cle.com>
> Signed-off-by: Roland Dreier <roland@...italvampire.org>

Ouch! Well that was obviously a bug. I wonder how the hell it only explodes for Romano. I've been shuffling loads of data using -rc1 without an incident.

Rgds
-- 
     -- Pierre Ossman

  Linux kernel, MMC maintainer        http://www.kernel.org
  PulseAudio, core developer          http://pulseaudio.org
  rdesktop, core developer          http://www.rdesktop.org
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