From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp-out.bhp.t-online.de ([195.145.119.39]) by pentafluge.infradead.org with esmtp (Exim 4.14 #3 (Red Hat Linux)) id 19Ynra-0001vm-K2 for ; Sat, 05 Jul 2003 15:18:06 +0100 Received: from maria.bhp.t-online.de (maria.ada.t-online.de [172.30.8.41]) 21 2002)) with SMTP id <0HHK00E1I2DRL4@smtp-out.bhp.t-online.de> for linux-mtd@lists.infradead.org; Sat, 05 Jul 2003 16:17:52 +0200 (MEST) Date: Sat, 05 Jul 2003 17:15:14 +0200 From: Thomas Gleixner In-reply-to: To: Stephan Linke , Alex Samoutin Message-id: <200307051715.14902.tglx@linutronix.de> MIME-version: 1.0 Content-disposition: inline References: Content-type: text/plain; charset=windows-1251 Content-transfer-encoding: 7BIT cc: Linux-Mtd Subject: Re: Fw: corrupt my NAND flash device Reply-To: tglx@linutronix.de List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Thursday 03 July 2003 07:44, Stephan Linke wrote: > Hi Alex, > > I just had a look at this mail and one of the problems you mention just > reminds me of me experiences a few month ago. You say that write verify on > you NAND flash sometimes failes. I had the same on my board using YAFFS on > a NAND. I figured out that verify failes during partial writes. The reason > the compair routine doesn'T deal with that special situation where there is > already some data in the page and someone writes only a few 0's leaving the > rest at 0xFF since the manual says to do so in partial writes. We have canceled partial page writes some time ago. -- Thomas ________________________________________________________________________ linutronix - competence in embedded & realtime linux http://www.linutronix.de mail: tglx@linutronix.de