From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from www.mw-itcon.de ([213.146.115.73]) by canuck.infradead.org with smtp (Exim 4.54 #1 (Red Hat Linux)) id 1EnBbw-0001RM-Ck for linux-mtd@lists.infradead.org; Fri, 16 Dec 2005 04:10:51 -0500 Message-ID: <43A2849E.8000907@mw-itcon.de> Date: Fri, 16 Dec 2005 10:10:54 +0100 From: Peter Menzebach MIME-Version: 1.0 To: alfred hitch References: <43A1418F.3060701@imc-berlin.de> <20051215102607.GA20431@angel.research.nokia.com> <43A1609C.80705@imc-berlin.de> <43A166C6.5060803@mw-itcon.de> <29f916510512151816v59b1f584h346a415b3888728@mail.gmail.com> In-Reply-To: <29f916510512151816v59b1f584h346a415b3888728@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Steven Scholz , linux-mtd@lists.infradead.org Subject: Re: Do I have to umount JFFS2? List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , alfred hitch wrote: > Hi Steven, Peter, > > I would like to put in some problems we are also facing. I had > reported it sometime back here also. > > On our system, we are observing that files on flash (jffs2 intel cfi nand) > are getting corrupted, after a number of resets and say 3 months of usage) > > Anyone seen anything like this ? any clues on how one can look into this. > Hi Alfred, I have had no non recoverable error here up to now, but I am not representative, since I do not need many permanent writes: I have all permanently changeable informations like configuration files in one rw partition, and all temporary information like log, lock, pidfiles... in the ramdisk. My rootfs stays ro. In my case, I can simply erase the "config-partition", and the board definitely is clean. I have 2 ideas to your problems: 1. Single files can be still corrupted, when you write them and press reset. 2. Your jffs2 version is from a let's say "not so good time" What I do not understand (from one of your previous posts): You said, a command file was damaged. Was this file written at generation time of the fs, and then not written any more? Best regards Peter -- Peter Menzebach Menzebach und Wolff IT-Consulting GbR Phone +49 751 355 387 1