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From: "H. Peter Anvin" <hpa@zytor.com>
To: Pavel Machek <pavel@suse.cz>
Cc: Theodore Tso <tytso@mit.edu>, kernel list <linux-kernel@vger.kernel.org>
Subject: Re: SD/MMC cards: how crappy they are?
Date: Thu, 04 Dec 2008 11:03:15 -0800	[thread overview]
Message-ID: <49382973.4000908@zytor.com> (raw)
In-Reply-To: <20081204103206.GD22396@elf.ucw.cz>

Pavel Machek wrote:
>>>
>> I have seen flash cards die permanently from having a partition table it
>> didn't like written to it.  Yes, the microcontroller on the flash card
>> tried to interpret the partition table, assumed to be MS-DOS style, and
>> would crash.
> 
> Aha... that explains why I killed few flashcards by tar xzvf /dev/sdX files
> ... hopefully thats fixed in the better/bigger cards now.
> 

Also had a batch of cards which would silently "correct" the partition
table for you to align the partitions to its flash erase blocks.

	-hpa

  reply	other threads:[~2008-12-04 19:03 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
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 [this message]
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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