From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.nokia.com ([192.100.122.233] helo=mgw-mx06.nokia.com) by bombadil.infradead.org with esmtps (Exim 4.69 #1 (Red Hat Linux)) id 1MMjPO-0002Ny-16 for linux-mtd@lists.infradead.org; Fri, 03 Jul 2009 14:06:41 +0000 Subject: RE: UBIFS Corrupt during power failure From: Artem Bityutskiy To: Urs Muff In-Reply-To: <7207AAC68CE347458026863515A07DA102901F3C@usw-am-xch-02.am.trimblecorp.net> References: <1239979018.3390.298.camel@localhost.localdomain> <200905150916.54091.sr@denx.de> <1242721105.3623.0.camel@localhost.localdomain> <1246627562.20721.190.camel@localhost.localdomain> <1246627771.20721.191.camel@localhost.localdomain> <7207AAC68CE347458026863515A07DA102901F3C@usw-am-xch-02.am.trimblecorp.net> Content-Type: text/plain; charset="UTF-8" Date: Fri, 03 Jul 2009 17:05:40 +0300 Message-Id: <1246629940.20721.219.camel@localhost.localdomain> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Cc: Stefan Roese , Eric Holmberg , linux-mtd@lists.infradead.org, Adrian Hunter Reply-To: dedekind@infradead.org List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Fri, 2009-07-03 at 07:33 -0600, Urs Muff wrote: > Trimble is closed until 7/13 and Eric is already gone. > I'm not a flash expert at all, and only know things from passing, > but from what I have heard, NOR flash does physical erasing quite > different from NAND flash, by togging everything to 00, and then > to FF. So what you are seeing is absolutely explainable with what > I understand. Hmm, I'll try to google. But if this is true, I do not understand how JFFS2 may work on NOR... I wonder if it is possible to ask NOR to erase from the beginning, not from the end, which should help. -- Best regards, Artem Bityutskiy (Битюцкий Артём)