From: Artem Bityutskiy <dedekind@infradead.org>
To: Eric Holmberg <Eric_Holmberg@Trimble.com>
Cc: linux-mtd@lists.infradead.org, Stefan Roese <sr@denx.de>,
Nicolas Pitre <nico@cam.org>,
Adrian Hunter <adrian.hunter@nokia.com>,
Urs Muff <urs_muff@Trimble.com>
Subject: RE: UBIFS Corrupt during power failure
Date: Tue, 14 Jul 2009 08:34:30 +0300 [thread overview]
Message-ID: <1247549670.8109.2.camel@localhost.localdomain> (raw)
In-Reply-To: <C77C279BA71FD14985DC8E75FB265AB703AA85C0@usw-am-xch-02.am.trimblecorp.net>
On Mon, 2009-07-13 at 12:22 -0600, Eric Holmberg wrote:
> I verified with Spansion that the embedded erase algorithm first clears
> all 1's to 0's before erasing the bits to charge them back up to 1.
Yes, I found this information in the data sheet as well.
> The patch to write to the header is a great solution and I think it's
> the only possible solution. Performance should be fine, since the
> 4-byte write should only take about 0.5ms which is insignificant
> compared to a typical PEB erase time of 700ms.
Yeah, nor erase is dead slow comparing to NAND.
> I will run 4 boards through torture tests starting tonight and let you
> know later this week! Based upon the errors that I've seen and looking
> at the patch, I think that should solve the problem.
Nice. Note, with this patch I cannot reproduce UBIFS mount errors.
I am trying to see mount errors related to the buffered writes,
but cannot.
--
Best regards,
Artem Bityutskiy (Битюцкий Артём)
next prev parent reply other threads:[~2009-07-14 5:35 UTC|newest]
Thread overview: 89+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-24 13:45 UBIFS Corrupt during power failure Eric Holmberg
2009-03-24 15:30 ` Adrian Hunter
2009-03-24 17:04 ` Eric Holmberg
2009-03-24 18:16 ` Eric Holmberg
2009-03-25 6:32 ` Artem Bityutskiy
2009-03-26 6:59 ` Artem Bityutskiy
2009-03-26 14:09 ` Eric Holmberg
2009-03-30 19:00 ` Eric Holmberg
2009-03-31 14:45 ` Artem Bityutskiy
2009-04-10 12:25 ` Artem Bityutskiy
2009-04-10 14:27 ` Eric Holmberg
2009-04-10 15:17 ` Artem Bityutskiy
2009-04-10 15:49 ` Artem Bityutskiy
2009-04-10 17:00 ` Eric Holmberg
2009-04-10 17:11 ` Artem Bityutskiy
2009-04-10 18:33 ` Eric Holmberg
2009-04-14 6:11 ` Artem Bityutskiy
2009-04-14 15:09 ` Eric Holmberg
2009-04-14 15:45 ` Artem Bityutskiy
2009-04-14 15:53 ` Artem Bityutskiy
2009-04-14 18:00 ` Jamie Lokier
2009-04-15 6:00 ` Artem Bityutskiy
2009-04-15 15:17 ` Eric Holmberg
2009-04-15 16:09 ` Jamie Lokier
2009-04-15 16:12 ` Artem Bityutskiy
2009-04-15 16:32 ` Eric Holmberg
2009-04-15 16:44 ` Jamie Lokier
2009-04-15 18:26 ` Nicolas Pitre
2009-04-15 18:38 ` Jamie Lokier
2009-04-15 19:33 ` Eric Holmberg
2009-04-15 20:15 ` Nicolas Pitre
2009-04-15 20:46 ` Jamie Lokier
2009-04-16 5:51 ` Artem Bityutskiy
2009-04-16 5:46 ` Artem Bityutskiy
2009-04-16 21:34 ` Jamie Lokier
2009-04-17 8:56 ` Artem Bityutskiy
2009-04-17 13:51 ` Jamie Lokier
2009-04-17 14:36 ` Artem Bityutskiy
2009-04-17 23:49 ` Eric Holmberg
2009-05-15 7:16 ` Stefan Roese
2009-05-18 17:30 ` Eric Holmberg
2009-05-19 8:18 ` Artem Bityutskiy
2009-05-19 22:16 ` Eric Holmberg
2009-05-25 8:38 ` Artem Bityutskiy
2009-05-25 12:54 ` Artem Bityutskiy
2009-05-25 12:57 ` Artem Bityutskiy
2009-07-03 13:26 ` Artem Bityutskiy
2009-07-03 13:29 ` Artem Bityutskiy
2009-07-03 13:33 ` Urs Muff
2009-07-03 14:05 ` Artem Bityutskiy
2009-07-03 14:47 ` Urs Muff
2009-07-03 14:58 ` Artem Bityutskiy
2009-07-06 4:30 ` Artem Bityutskiy
2009-07-06 4:51 ` Artem Bityutskiy
2009-07-06 6:43 ` Artem Bityutskiy
2009-07-07 6:46 ` Artem Bityutskiy
2009-07-07 7:05 ` Urs Muff
2009-07-13 18:22 ` Eric Holmberg
2009-07-14 5:34 ` Artem Bityutskiy [this message]
2009-07-15 20:52 ` Jamie Lokier
2009-07-15 21:35 ` Eric Holmberg
2009-07-16 7:33 ` Artem Bityutskiy
2009-07-24 6:49 ` Artem Bityutskiy
2009-07-24 12:00 ` Artem Bityutskiy
2009-07-24 13:39 ` Eric Holmberg
2009-07-24 14:55 ` Artem Bityutskiy
2009-07-24 14:05 ` Jamie Lokier
2009-07-24 14:09 ` Artem Bityutskiy
2009-07-16 7:09 ` Artem Bityutskiy
2009-07-16 16:49 ` Jamie Lokier
2009-07-17 7:07 ` Artem Bityutskiy
2009-07-15 20:55 ` Jamie Lokier
2009-07-15 21:36 ` Eric Holmberg
2009-07-15 22:09 ` Jamie Lokier
2009-07-16 7:22 ` Artem Bityutskiy
2009-07-16 7:16 ` Artem Bityutskiy
2009-07-16 20:54 ` Gilles Casse
2009-07-17 0:29 ` Carl-Daniel Hailfinger
2009-07-24 14:08 ` Jamie Lokier
2009-07-16 7:14 ` Artem Bityutskiy
2009-06-03 8:08 ` Artem Bityutskiy
2009-06-03 8:25 ` Stefan Roese
2009-06-03 13:50 ` Eric Holmberg
2009-06-07 10:16 ` Artem Bityutskiy
2009-07-28 12:01 ` news
2009-07-28 12:24 ` Adrian Hunter
2009-07-28 17:19 ` Eric Holmberg
2009-08-09 4:59 ` Artem Bityutskiy
2009-04-17 8:58 ` Artem Bityutskiy
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