From: Artem Bityutskiy <dedekind1@gmail.com>
To: news <rw_nospam@gmx.de>
Cc: Eric Holmberg <Eric_Holmberg@Trimble.com>,
dedekind@infradead.org, Jamie Lokier <jamie@shareable.org>,
linux-mtd@lists.infradead.org, Stefan Roese <sr@denx.de>,
Adrian Hunter <adrian.hunter@nokia.com>
Subject: Re: UBIFS Corrupt during power failure
Date: Sun, 09 Aug 2009 07:59:28 +0300 [thread overview]
Message-ID: <4A7E57B0.6080602@gmail.com> (raw)
In-Reply-To: <4A6EE895.9050008@gmx.de>
On 07/28/2009 03:01 PM, news wrote:
> We have similar problems with a SPANSION falsh (S29GL01GP).
> I think the reason of the problem is a feature of the chip.
>
> I reduced the problem to the MTD access (without ubi/ubifs).
> We noticed toggle flash-bit(s) after power off during a write cycle.
> The toggle flash-bit(s) may occure after power of during an sector-erase
> too.
>
> Simple testsequence:
> * flash_erase ...
> * cp testfile /dev/mtd0
> - automatic or manuel power off during the cp
> Check the flash after reboot (e.g md5sum /dev/mtd0 helps).
>
> We used the default settings from the CFI (MaxBufWriteSize=6 == 64 byte
> buffer).
This was fixed. See the latest UBI/UBIFS git trees. The fixes are also
in the back-port trees:
http://www.linux-mtd.infradead.org/doc/ubifs.html#L_source
--
Best Regards,
Artem Bityutskiy (Артём Битюцкий)
next prev parent reply other threads:[~2009-08-09 4:59 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
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 [this message]
2009-04-17 8:58 ` Artem Bityutskiy
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