From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.nokia.com ([192.100.122.230] helo=mgw-mx03.nokia.com) by bombadil.infradead.org with esmtps (Exim 4.69 #1 (Red Hat Linux)) id 1O8uXj-0004My-1R for linux-mtd@lists.infradead.org; Mon, 03 May 2010 12:14:35 +0000 Subject: Re: Can not mount UBIFS From: Artem Bityutskiy To: =?UTF-8?Q?=E6=9E=97=E4=BA=8E=E5=B3=BB?= In-Reply-To: References: <531B6536C9F737458807DF75064873C8BE5EB0382D@mta-digimail.MTA.INT> <1270544458.6754.15.camel@localhost> Content-Type: text/plain; charset="UTF-8" Date: Mon, 03 May 2010 15:08:32 +0300 Message-ID: <1272888512.27729.46.camel@localhost> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Cc: linux-mtd@lists.infradead.org, Bosi Daniele , GUIDA Nicola Reply-To: dedekind1@gmail.com List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Mon, 2010-05-03 at 19:54 +0800, 林于峻 wrote: > Dear all, > > Thank you for your support. > I can mount UBIFS now after fixing mtd read function. > > However, if I enable the "extra checks" of UBI and UBIFS, then I can > not mount UBIFS. > What's the different after enable "extra checks" of UBI and UBIFS. Well, these are various self-checks. There are many of them and they are different. E.g., in UBI some of them read flash before every writing and make sure the area contains all 0xFF bytes. In UBIFS this can be walking through the whole index tree and checks it. There are many of them and they are different. If things stop working for you when you enable all checks, this either means a bug in the debugging code or a real problem. Please, post your error report. Use this guide: http://www.linux-mtd.infradead.org/doc/ubifs.html#L_how_send_bugreport -- Best Regards, Artem Bityutskiy (Артём Битюцкий)