From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp-2.hut.fi ([130.233.228.92]:59110 "EHLO smtp-2.hut.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756005Ab2GFVqi (ORCPT ); Fri, 6 Jul 2012 17:46:38 -0400 Date: Sat, 7 Jul 2012 00:41:29 +0300 From: Sami Liedes To: Jan Schmidt , linux-btrfs@vger.kernel.org Subject: Re: btrfs GPF in read_extent_buffer() while scrubbing with kernel 3.4.2 Message-ID: <20120706214129.GA8933@sli.dy.fi> References: <4FF42876.8010309@jan-o-sch.net> <20120704160340.GA9770@sli.dy.fi> <4FF47168.9010405@jan-o-sch.net> <20120704202452.GA8996@sli.dy.fi> <4FF5998D.8020205@jan-o-sch.net> <20120705234739.GA9736@sli.dy.fi> <4FF6C12A.10305@jan-o-sch.net> <20120706143350.GA10427@sli.dy.fi> <4FF6FF8C.4010007@jan-o-sch.net> <20120706195923.GA10687@sli.dy.fi> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="+QahgC5+KEYLbs62" In-Reply-To: <20120706195923.GA10687@sli.dy.fi> Sender: linux-btrfs-owner@vger.kernel.org List-ID: --+QahgC5+KEYLbs62 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Fri, Jul 06, 2012 at 10:59:24PM +0300, Sami Liedes wrote: > I think I might try running it overnight with KMEMCHECK to see if it > reports something. But for now, what there's in the log: My KMEMCHECK kernel didn't even boot (due to some weird KMEMCHECK/ACPI interaction), so I won't pursue this idea further at the moment... > * lots of checksum mismatch [234], no 1s One thing to notice from the logs, too, is that the device seems to always be dm-6, the second device of the filesystem. This never seems to happen to dm-5. There are 1583 lines of "btrfs: dm-6 checksum verify failed". Sami --+QahgC5+KEYLbs62 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIcBAEBCgAGBQJP91uJAAoJEKLT589SE0a0HvAQAMTlvqbRuxOOVbZGTMCyQvyp x5L21SXm9pK5GoqUftAEdU3WdkfSd6VuA+Xb0qaMMGitByBY8+T9UqI9LyxwN58C ixChQlpb8kk++wTjAYkeU+WoETFWWNf1jibrBDetl0xKNuZ1sO4df6FhN6Zyg3si fg+G+HCVvswXTlJEddwlXt7mcjOf2sQxw1agI6oInToOuxa3EWGBzX449rtxMKVk YE/bmSN7KSrPFMl6fMUva/qpuWy6jI0msOlWy+n9G0AfNNvw+V8kfNbpbJAp6j7n hZQ8Rv0pKaroIiQw/lmBA3QoptjdSZKkBwCR6ktNTcugqci9jfmpNZGIqIvEjMPC jmYNLZMXKjUPvDCR1UGx/aaRcSOCTjfYRbei2I8x5Br/+DW/cM7w6saiYNBxluyk xi2V6s1tWXOEvPImwi6UkAsbTyBfOD8EKM6nrmYR4qjgwYFurD2tTSuKQMeLH98h +Tf2B1Xt7Q+5pOJoARPacJL1SWAwJDx8VehH2F5fvmZNqyT0qNTcEWxqqhDa/EHI 9ikGy9+g8X8ZQNZvTQ144c8hLz7uQEown21ir/1p30RR+1HsvIkhaNHwbaLYGpiV oKRsVVLSvlKPSzupD7cFP6EFNLj8DTmms1ewJJdIQJRNP9FgAAUFLJqdlUeFC06E 6w8508D34f7tudI5a+Wk =9hDe -----END PGP SIGNATURE----- --+QahgC5+KEYLbs62--