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Subject: Re: Compactflash cards dying?
From: Daniel Egger <degger@fhm.edu>
To: Pavel Machek <pavel@ucw.cz>
Cc: kernel list <linux-kernel@vger.kernel.org>
In-Reply-To: <20030202223009.GA344@elf.ucw.cz>
References: <20030202223009.GA344@elf.ucw.cz>
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Am Son, 2003-02-02 um 23.30 schrieb Pavel Machek:

> First time I repartitioned it; now I only did mke2fs, and data
> corruption can be seen by something as simple as

> cat /mnt/cf/mp3/* > /mnt/cf/delme; md5sum /mnt/cf/delme.

> Anyone seen something similar? Are there some known-good
> compactflash-es?

CF has limited write cycles. A few hundred if you're lucky.
And depending on the type of flash it's quite likely that every
changed byte will result in a whole block being written back.

I'm running dotzends of CF cards and due to some care not a single
one has developped bad blocks as of yet.

--=20
Servus,
       Daniel

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