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 4.68 #1 (Red Hat Linux)) id 1LAMY1-0002Dr-6U for linux-mtd@lists.infradead.org; Wed, 10 Dec 2008 10:44:05 +0000 Subject: Re: CONFIG_MTD_UBI_DEBUG_DISABLE_BGT=y corrupts slab? From: Artem Bityutskiy To: Don Mullis In-Reply-To: <493F6ED2.5080402@gmail.com> References: <493F6ED2.5080402@gmail.com> Content-Type: text/plain; charset=utf-8 Date: Wed, 10 Dec 2008 12:41:54 +0200 Message-Id: <1228905714.13686.236.camel@sauron> Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Cc: linux-mtd@lists.infradead.org Reply-To: dedekind@infradead.org List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Tue, 2008-12-09 at 23:25 -0800, Don Mullis wrote: > With CONFIG_MTD_UBI_DEBUG_DISABLE_BGT=3Dy, I get various corruption-cause= d=20 > OOPSes after a remount: >=20 > # umount /cache > # mount -t ubifs -o ro ubi:cache /cache Hmm, I ran integrity test on UBIFS and had this UBI config option enabled (as well ass emulate write and erase errors options enabled) yesterday, and it worked fine - not slab problems and UBI was able to recover from all errors, so the integrity check test worked fine. But that was the latest UBIFS from the ubifs-2.6.git tree. > I'm using a 2.6.25 kernel with the 100+ UBIFS-related patches from=20 > kernel.org back-ported into it, so some mismatch there is possible. We have UBI/UBIFS backport trees, could you try ubifs-v2.6.26.git please? It has all the UBI/UBIFS patches back-ported. Or you may just take the patches from ubifs-v2.6.26.git and apply them to your tree. Please, glance here: http://www.linux-mtd.infradead.org/doc/ubifs.html#L_source --=20 Best regards, Artem Bityutskiy (=D0=91=D0=B8=D1=82=D1=8E=D1=86=D0=BA=D0=B8=D0=B9 =D0=90= =D1=80=D1=82=D1=91=D0=BC)