From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-qa0-x22b.google.com ([2607:f8b0:400d:c00::22b]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1XwjdJ-0000Pu-R4 for linux-mtd@lists.infradead.org; Fri, 05 Dec 2014 03:32:42 +0000 Received: by mail-qa0-f43.google.com with SMTP id bm13so12727131qab.2 for ; Thu, 04 Dec 2014 19:32:20 -0800 (PST) Received: from [10.214.80.26] (gate-tx3.freescale.com. [192.88.168.1]) by mx.google.com with ESMTPSA id f105sm28580950qge.1.2014.12.04.19.32.19 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 04 Dec 2014 19:32:19 -0800 (PST) Message-ID: <54812742.8050407@gmail.com> Date: Thu, 04 Dec 2014 21:32:18 -0600 From: gmail MIME-Version: 1.0 To: linux-mtd@lists.infradead.org Subject: MTD Read OOB Question Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hi, I have a question about how mtd read OOB. Does MTD assume the OOB is not covered by ECC? I think if raw read the OOB data, it hardly to guarantee the data consistency. I met this issue when system scans BBT, the BBT list changes in each time. Is that a general problem? Any comments for it? Thanks. Han Xu