Message-ID: <49382973.4000908@zytor.com>
Date: Thu, 04 Dec 2008 11:03:15 -0800
From: "H. Peter Anvin" <hpa@zytor.com>
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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?
References: <20081202144830.GB1549@ucw.cz> <493562A5.40308@zytor.com> <20081202165608.GD18162@mit.edu> <4935778E.1020405@zytor.com> <20081204103206.GD22396@elf.ucw.cz>
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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
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