From wry+yaffs@ecoscentric.com Sat Jan 23 12:56:13 2010 Received: from hagrid.ecoscentric.com ([212.13.207.197] helo=mail.ecoscentric.com) by stoneboat.aleph1.co.uk with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.69) (envelope-from ) id 1NYfX6-0007PR-Eu for yaffs@lists.aleph1.co.uk; Sat, 23 Jan 2010 12:56:13 +0000 Received: from localhost (hagrid.ecoscentric.com [127.0.0.1]) by mail.ecoscentric.com (Postfix) with ESMTP id 35FAE2F7800A for ; Sat, 23 Jan 2010 12:56:02 +0000 (GMT) X-Virus-Scanned: amavisd-new at ecoscentric.com Received: from mail.ecoscentric.com ([127.0.0.1]) by localhost (hagrid.ecoscentric.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id frNVHOfEb7n2; Sat, 23 Jan 2010 12:55:38 +0000 (GMT) Received: from [192.168.2.129] (60.66.187.81.in-addr.arpa [81.187.66.60]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: wry@ecoscentric.com) by mail.ecoscentric.com (Postfix) with ESMTP id E00692F78004 for ; Sat, 23 Jan 2010 12:55:37 +0000 (GMT) Message-ID: <4B5AF1C7.1030600@ecoscentric.com> Date: Sat, 23 Jan 2010 12:55:35 +0000 From: Ross Younger User-Agent: Mozilla-Thunderbird 2.0.0.22 (X11/20090707) MIME-Version: 1.0 To: yaffs@lists.aleph1.co.uk References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-SA-Exim-Connect-IP: 212.13.207.197 X-SA-Exim-Mail-From: wry+yaffs@ecoscentric.com X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on stoneboat.aleph1.co.uk X-Spam-Level: X-Spam-Status: No, score=-2.6 required=4.5 tests=BAYES_00,SPF_PASS autolearn=no version=3.2.5 X-SA-Exim-Version: 4.2.1 (built Wed, 25 Jun 2008 17:14:11 +0000) X-SA-Exim-Scanned: Yes (on stoneboat.aleph1.co.uk) Subject: Re: [Yaffs] MKYAFFS : Writing data into YAFFS2 filesystem X-BeenThere: yaffs@lists.aleph1.co.uk X-Mailman-Version: 2.1.11 Precedence: list List-Id: Discussion of YAFFS NAND flash filesystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 23 Jan 2010 12:56:13 -0000 Saquib wrote: > **>> yaffs chunk 64 was not erased > [...] > !!!!!!!!! Allocator out !!!!!!!!!!!!!!!!! > I am just thinking whether mkyaffs2image needs to be executed before > writing any data to flash after erasing it. Is my understanding correct > or wrong? A properly erased flash device is ready for use by YAFFS; there is no separate "format" step. You should be able to mount the device and use it immediately after erasing it; I do. My guess would be that there's something funny going on in your MTD driver, that it's not matching your flash part in some way. mkyaffs2image is a host-side tool which prepares a filesystem image to be programmed into your flash device later. Unless you know this will be useful to you, it won't be. Ross