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

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Message-Id: <1194385693.12938.5.camel@rukbat>
Date:	Tue, 06 Nov 2007 22:48:13 +0100
From:	Romano Giannetti <romanol@...omillas.es>
To:	Willy Tarreau <w@....eu>
Cc:	Pierre Ossman <drzeus-mmc@...eus.cx>,
	Roland Dreier <rdreier@...co.com>, linux-kernel@...r.kernel.org
Subject: Re: 2.6.34-rc1 eat my photo SD card :-(

On Tue, 2007-11-06 at 20:51 +0100, Willy Tarreau wrote:
> On Tue, Nov 06, 2007 at 10:58:41AM +0100, Romano Giannetti wrote:
> (first time)
> > 0000000 0000 0000 31e4 c363 d908 cb2e 0000 0000
> 
> (fourth time)
> > 0000000 0000 0000 71e4 c36f d908 cb2e 0000 0000
> 
> (fifth time)
> > 0000000 0000 0000 f1e4 c37b d908 cb2e 0000 0000
> 
> Most always, you have only a few bits which change, and always for
> the same bytes :
> 
>   31 -> 71 -> f1  (|40, |80)
>   63 -> 6f -> 7b  (|0c, |10&~4)

Yes, but the second, third and  sixth it was:

0000000 6b6b 6b6b 6b6b 6b6b 6b6b 6b6b 6b6b 6b6b
*
which seems to me something poisoned... and the error in the filesystem
was a 0xffff turned 0x0000. 

I do really suspect a software bug.

Romano

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