From: "Artem B. Bityutskiy" <dedekind@yandex.ru>
To: Pavel Machek <pavel@ucw.cz>
Cc: J Engel <joern@wohnheim.fh-wedel.de>,
Peter Menzebach <pm-mtd@mw-itcon.de>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: data loss on jffs2 filesystem on dataflash
Date: Thu, 22 Sep 2005 14:48:39 +0400 [thread overview]
Message-ID: <43328C07.9070001@yandex.ru> (raw)
In-Reply-To: <20050921190759.GC467@openzaurus.ucw.cz>
Pavel Machek wrote:
> ext2 and anything that does not do journalling?
>
> I do not thing behaviour on powerfail is part of block device definition.
>
Pavel, AFAIU,
Joern meant that if HDD starts a block write operation, it will
accomplish it even if power-fail happens (probably there are some
capacitors there). So, it is impossible, say, that HDD has written one
half of a sector and has not written the other half.
And he wanted to say that DataFlash HW does not guarante this. But,
perhaps, adding a special HW, this is implementable.
--
Best Regards,
Artem B. Bityuckiy,
St.-Petersburg, Russia.
next prev parent reply other threads:[~2005-09-22 10:48 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <432812E8.2030807@mw-itcon.de>
[not found] ` <432817FF.10307@yandex.ru>
[not found] ` <4329251C.7050102@mw-itcon.de>
[not found] ` <4329288B.8050909@yandex.ru>
[not found] ` <43292AC6.40809@mw-itcon.de>
[not found] ` <43292E16.70401@yandex.ru>
[not found] ` <43292F91.9010302@mw-itcon.de>
[not found] ` <432FE1EF.9000807@yandex.ru>
[not found] ` <432FEF55.5090700@mw-itcon.de>
2005-09-20 12:55 ` data loss on jffs2 filesystem on dataflash Artem B. Bityutskiy
2005-09-20 13:32 ` Jörn Engel
2005-09-20 14:11 ` Artem B. Bityutskiy
2005-09-21 19:07 ` Pavel Machek
2005-09-22 10:48 ` Artem B. Bityutskiy [this message]
2005-09-22 16:46 ` Valdis.Kletnieks
2005-09-22 17:03 ` Artem B. Bityutskiy
2005-09-22 17:22 ` linux-os (Dick Johnson)
2005-09-22 18:43 ` jscottkasten
2005-09-23 8:51 ` Jörn Engel
2005-09-22 11:34 ` Jörn Engel
2005-09-22 11:54 ` Jörn Engel
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