Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756009AbbESO2M (ORCPT ); Tue, 19 May 2015 10:28:12 -0400 Received: from tur.go2.pl ([193.17.41.50]:38081 "EHLO tur.go2.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755524AbbESO2I (ORCPT ); Tue, 19 May 2015 10:28:08 -0400 X-Greylist: delayed 2024 seconds by postgrey-1.27 at vger.kernel.org; Tue, 19 May 2015 10:28:07 EDT Date: Tue, 19 May 2015 15:54:17 +0200 From: Piotr Szymaniak To: Chris Mason Cc: Govindarajulu Varadarajan <_govind@gmx.com>, linux-btrfs@vger.kernel.org, linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org, jbacik@fb.com, dsterba@suse.cz Subject: Re: btrfs: kernel BUG at mm/page-writeback.c:2286! Message-ID: <20150519135416.GO2539@wloczykij> References: <555B3DEE.1000900@fb.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="ONvqYzh+7ST5RsLk" Content-Disposition: inline In-Reply-To: <555B3DEE.1000900@fb.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-O2-Trust: 2, 65 X-O2-SPF: notchecked Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2553 Lines: 70 --ONvqYzh+7ST5RsLk Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, May 19, 2015 at 09:43:10AM -0400, Chris Mason wrote: > On 05/19/2015 03:55 AM, Govindarajulu Varadarajan wrote: > > 2286--->BUG_ON(!PageLocked(page)); > >=20 > > [ 166.769868] BTRFS info (device sdf): no csum found for inode 1154 > > start 43192320 > > [ 166.774334] BTRFS info (device sdf): csum failed ino 1154 extent > > 4434247680 csum 1388825687 wanted 0 mirror 0 >=20 >=20 > Josef and I both missed this the first time you pasted it, but the > unlocked page is almost certainly related to this csum error. While > we're looking at things can you please scrub? Hi, In the original report there was: > [root@stg ~]#btrfs scru status /mnt/stg > scrub status for dd10b751-d2aa-40d1-971f-e15b0062dd11 > scrub started at Tue May 19 03:33:26 2015 and finished after 468 = seconds > total bytes scrubbed: 101.80GiB with 0 errors Correct me if I'm wrong, but I think that Govindarajulu Varadarajan made the scrub _after_ the crash. Piotr Szymaniak. --=20 Podstawowym zadaniem sztuki jest tworzy=C4=87 odbicie rzeczywisto=C5=9Bci,= a nie ma lustra wystarczaj=C4=85co du=C5=BCego do pokazania niesko=C5=84czono=C5= =9Bci. -- Douglas Adams, "Restaurant at The End of The Universe" --ONvqYzh+7ST5RsLk Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCAAGBQJVW0CIAAoJEEMpAov1cw9l2AwP/2qq/tHN9Zhu5xfYQHCAUT80 5e3oSDekuQfDmTui50LQfAoMrHm1RdNG+Bja4H4oBmpGOpxGP3oMCilISleHbo4B AwZLOlZ7lKkudfcb9NKTG5ZnKs20TBJmZ9DyAOTbI4gMWv75CjDc3EHal3iKx7Dl GIBDZr6s+cxwTh+8nDKQZwuAihlrHSbsKDiDmlFz4qma5UKG8CLFcyvr8kHodX6k 5Xww2+29WY7iAo4FrrTFRKy/11hBOaWDxbUkbrJcWdn2yx9Vi2j5vgapIbvIPJ4q d/ggxo/f9OfUCiU8vkYve8FRo4rZg+YwJMFoEdXpQEeeijeno5NsOaU6T8QJYben y0cuV8eI7NxY+9i1NfxXECcS/KbnYYiAG/oBMw7l+l48bAUxc7166PwjccamAnfz lDUYIhf9yDSUHOchs27eL+vX04h4Q/vo9a4u5s62Ui0Db9Ua0YgW7TIjjejPnVzy yNzVigk+AYTHfaCZNjmz6U+jGHW8zUyfWyjc568mJfbcdWfHS0FbMGrM1BXSPiqp XqqE9F6TZS5ic+kv2KqCLvHAWg7BaHgODOCo/qV9SB9aqoCK2sZrGww0jUH6hylr B1DkhyZZq+Ief3cw7+3Lstzuw2NZ8llZDBY6nAKsM9bNwWkOYWZIeh75PVJawfz3 BwZHcS/8VoDOTBF+SXGm =cbOq -----END PGP SIGNATURE----- --ONvqYzh+7ST5RsLk-- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/