From: "H. Peter Anvin" <hpa@zytor.com>
To: Pavel Machek <pavel@suse.cz>
Cc: kernel list <linux-kernel@vger.kernel.org>, tytso@mit.edu
Subject: Re: SD/MMC cards: how crappy they are?
Date: Tue, 02 Dec 2008 08:30:29 -0800 [thread overview]
Message-ID: <493562A5.40308@zytor.com> (raw)
In-Reply-To: <20081202144830.GB1549@ucw.cz>
Pavel Machek wrote:
>
> ...maybe it was because of powerfail? I'll try to run badblocks to
> recover it...
>
> ...I did. Badblocks did not help, but cat /dev/zero > /dev/mmc1
> did.. And yes, thosse 'temporarily bad blocks' seem very much
> powerfail related.
>
Power failures can, indeed, do nasty things to SD/MMC cards, especially
power rail sag in the middle of writes.
-hpa
next prev parent reply other threads:[~2008-12-02 16:31 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-02 14:48 SD/MMC cards: how crappy they are? Pavel Machek
2008-12-02 16:30 ` H. Peter Anvin [this message]
2008-12-02 16:56 ` Theodore Tso
2008-12-02 17:59 ` H. Peter Anvin
2008-12-04 10:32 ` Pavel Machek
2008-12-04 19:03 ` H. Peter Anvin
2008-12-26 21:46 ` Pavel Machek
2008-12-26 21:49 ` H. Peter Anvin
2008-12-26 22:39 ` Pavel Machek
2008-12-27 1:03 ` Ben Pfaff
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