From: Sergei Sharonov <sergei.sharonov@halliburton.com>
To: linux-mtd@lists.infradead.org
Subject: Re: NAND flash question
Date: Mon, 27 Jun 2005 21:57:20 +0000 (UTC) [thread overview]
Message-ID: <loom.20050627T234825-377@post.gmane.org> (raw)
In-Reply-To: 200506271409.42449.charles.tilbury@comcast.net
Charles,
> I am using an ST Micro 64M byte x 8 bit flash part and JFFS2. It mostly works
> except that when the board reboots, JFFS2 reports CRC error messages when the
> partition mounts again. The strange part is that there does not seem to be
> any data corruption or lost data. Also, I do not see any error messages
> while reading and writing. However, the CRC errors seem to accumulate over
> time. Is there some way to prevent this from happening? Repair it? Should
> I just ignore it?
In my experience these "errors" occur if you switch of the power without
proper shutdown. They are not errors really, just notes from JFFS2 that
some write was interrupted by power cycle or reset and the node written is
invalid. It is annoying but harmless. I believe they eventually go away
after the block is reclaimed by GC.
Sergei
next prev parent reply other threads:[~2005-06-27 22:05 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-27 21:09 NAND flash question Charles Tilbury
2005-06-27 21:57 ` Sergei Sharonov [this message]
2005-06-28 7:23 ` Artem B. Bityuckiy
2005-06-28 15:58 ` Charles Tilbury
2005-06-28 16:06 ` Artem B. Bityuckiy
2005-06-28 16:41 ` Charles Tilbury
2005-06-28 18:30 ` David Woodhouse
2005-06-28 18:57 ` Charles Tilbury
2005-06-28 19:20 ` Sergei Sharonov
2005-06-29 6:39 ` Artem B. Bityuckiy
2005-06-29 6:29 ` Artem B. Bityuckiy
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