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From: Nix <nix@esperi.org.uk>
To: "Theodore Ts'o" <tytso@mit.edu>
Cc: "Eric Sandeen" <sandeen@redhat.com>,
	linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org,
	"J. Bruce Fields" <bfields@fieldses.org>,
	"Bryan Schumaker" <bjschuma@netapp.com>,
	"Peng Tao" <bergwolf@gmail.com>,
	Trond.Myklebust@netapp.com, gregkh@linuxfoundation.org,
	"Toralf Förster" <toralf.foerster@gmx.de>
Subject: Re: Apparent serious progressive ext4 data corruption bug in 3.6.3 (and other stable branches?)
Date: Wed, 24 Oct 2012 20:54:32 +0100	[thread overview]
Message-ID: <87wqyftzlz.fsf@spindle.srvr.nix> (raw)
In-Reply-To: <878vavveee.fsf@spindle.srvr.nix> (nix@esperi.org.uk's message of "Wed, 24 Oct 2012 20:49:45 +0100")

On 24 Oct 2012, nix@esperi.org.uk uttered the following:
> So, the net effect of this is that normally I get no journal recovery on
> anything at all -- but sometimes, if umounting takes longer than a few
> seconds, I reboot with not everything unmounted, and journal recovery
> kicks in on reboot. My post-test fscks this time suggest that only when
> journal recovery kicks in after rebooting out of 2.6.3 do I see
> corruption. So this is indeed an unclean shutdown journal-replay
> situation: it just happens that I routinely have one or two fses
> uncleanly unmounted when all the rest are cleanly unmounted. This
> perhaps explains the scattershot nature of the corruption I see, and why
> most of my ext4 filesystems get off scot-free.

Note that two umounts are not required: fsck found corruption on /var
after a single boot+shutdown round in 3.6.3+this patch. (It did do a
journal replay on /var first.)

-- 
NULL && (void)

  reply	other threads:[~2012-10-24 19:54 UTC|newest]

Thread overview: 112+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-22 16:17 Heads-up: 3.6.2 / 3.6.3 NFS server panic: 3.6.2+ regression? Nix
2012-10-23  1:33 ` J. Bruce Fields
2012-10-23 14:07   ` Nix
2012-10-23 14:30     ` J. Bruce Fields
2012-10-23 16:32       ` Heads-up: 3.6.2 / 3.6.3 NFS server oops: 3.6.2+ regression? (also an unrelated ext4 data loss bug) Nix
2012-10-23 16:46         ` J. Bruce Fields
2012-10-23 16:54           ` J. Bruce Fields
2012-10-23 16:56           ` Myklebust, Trond
2012-10-23 16:56             ` Myklebust, Trond
2012-10-23 17:05             ` Nix
2012-10-23 17:36               ` Nix
2012-10-23 17:43                 ` J. Bruce Fields
2012-10-23 17:44                 ` Myklebust, Trond
2012-10-23 17:57                   ` Myklebust, Trond
2012-10-23 17:57                     ` Myklebust, Trond
     [not found]                   ` <1351015039.4622.23.camel@lade.trondhjem.org>
2012-10-23 18:23                     ` Myklebust, Trond
2012-10-23 18:23                       ` Myklebust, Trond
2012-10-23 19:49                       ` Nix
2012-10-24 10:18                         ` [PATCH] lockd: fix races in per-net NSM client handling Stanislav Kinsbursky
2012-10-23 20:57         ` Apparent serious progressive ext4 data corruption bug in 3.6.3 (and other stable branches?) Nix
2012-10-23 20:57           ` Nix
2012-10-23 22:19           ` Theodore Ts'o
2012-10-23 22:47             ` Nix
2012-10-23 23:16               ` Theodore Ts'o
2012-10-23 23:06             ` Nix
2012-10-23 23:28               ` Theodore Ts'o
2012-10-23 23:34                 ` Nix
2012-10-24  0:57             ` Eric Sandeen
2012-10-24 20:17               ` Jan Kara
2012-10-26 15:25                 ` Eric Sandeen
2012-10-24 19:13             ` Jannis Achstetter
2012-10-24 19:13               ` Jannis Achstetter
2012-10-24 21:31               ` Theodore Ts'o
2012-10-24 22:05                 ` Jannis Achstetter
2012-10-24 23:47                 ` Nix
2012-10-25 17:02                 ` Felipe Contreras
2012-10-24 21:04             ` Jannis Achstetter
2012-10-24  1:13           ` Eric Sandeen
2012-10-24  1:13             ` Eric Sandeen
2012-10-24  4:15             ` Nix
2012-10-24  4:27               ` Eric Sandeen
2012-10-24  5:23                 ` Theodore Ts'o
2012-10-24  7:00                   ` Hugh Dickins
2012-10-24 11:46                     ` Nix
2012-10-24 11:45                   ` Nix
2012-10-24 17:22                   ` Eric Sandeen
2012-10-24 19:49                   ` Nix
2012-10-24 19:54                     ` Nix [this message]
2012-10-24 20:30                     ` Eric Sandeen
2012-10-24 20:34                       ` Nix
2012-10-24 20:45                     ` Nix
2012-10-24 21:08                     ` Theodore Ts'o
2012-10-24 23:27                       ` Apparent serious progressive ext4 data corruption bug in 3.6 (when rebooting during umount) Nix
2012-10-24 23:42                         ` Nix
2012-10-25  1:10                         ` Theodore Ts'o
2012-10-25  1:45                           ` Nix
2012-10-25  1:45                             ` Nix
2012-10-25 14:12                             ` Theodore Ts'o
2012-10-25 14:15                               ` Nix
2012-10-25 17:39                                 ` Nix
2012-10-25 11:06                           ` Nix
2012-10-26  0:22                           ` Apparent serious progressive ext4 data corruption bug in 3.6 (when rebooting during umount) (possibly blockdev / arcmsr at fault??) Nix
2012-10-26  0:11               ` Apparent serious progressive ext4 data corruption bug in 3.6.3 (and other stable branches?) Ric Wheeler
2012-10-26  0:43                 ` Theodore Ts'o
2012-10-26 12:12                   ` Nix
2012-10-26 20:35           ` Eric Sandeen
2012-10-26 20:37             ` Nix
2012-10-26 20:56               ` Theodore Ts'o
2012-10-26 20:56                 ` Theodore Ts'o
2012-10-26 20:59                 ` Nix
2012-10-26 20:59                   ` Nix
2012-10-26 21:15                   ` Theodore Ts'o
2012-10-26 21:15                     ` Theodore Ts'o
2012-10-26 21:19                     ` Nix
2012-10-27  0:22                       ` Theodore Ts'o
2012-10-27  0:22                         ` Theodore Ts'o
2012-10-27 12:45                         ` Nix
2012-10-27 17:55                           ` Theodore Ts'o
2012-10-27 18:47                             ` Nix
2012-10-27 21:19                               ` Eric Sandeen
2012-10-27 21:21                                 ` Nix
2012-10-27 21:23                                   ` Eric Sandeen
2012-10-27 21:29                                     ` Nix
2012-10-27 21:34                                       ` Eric Sandeen
2012-10-27 21:40                                         ` Nix
     [not found]                                         ` <09758CEA-74B5-48D0-8075-BB723A2CABBB@dilger.ca>
2012-10-29  2:09                                           ` Eric Sandeen
2012-10-27 22:42                                 ` Eric Sandeen
2012-10-29  1:00                                   ` Theodore Ts'o
2012-10-29  1:04                                     ` Nix
2012-10-29  2:24                                     ` Eric Sandeen
2012-10-29  2:34                                       ` Theodore Ts'o
2012-10-29  2:35                                         ` Eric Sandeen
2012-10-29  2:42                                           ` Theodore Ts'o
2012-10-27 18:30                           ` Eric Sandeen
2012-10-27  3:11                     ` Jim Rees
2012-10-27  3:11                       ` Jim Rees
2012-10-27  8:01             ` Testing ext4's journal via simulating a reboot via KVM Theodore Ts'o
2012-10-28  4:23           ` [PATCH] ext4: fix unjournaled inode bitmap modification Eric Sandeen
2012-10-28  4:23             ` Eric Sandeen
2012-10-28 13:59             ` Nix
2012-10-29  2:30             ` [PATCH -v3] " Theodore Ts'o
2012-10-29  2:30               ` Theodore Ts'o
2012-10-29  3:24               ` Eric Sandeen
2012-10-29  5:07               ` Andreas Dilger
2012-10-29 17:08               ` Darrick J. Wong
     [not found] <jXsTo-5lW-13@gated-at.bofh.it>
     [not found] ` <jXBDk-7vn-13@gated-at.bofh.it>
     [not found]   ` <jXNl8-5m5-13@gated-at.bofh.it>
     [not found]     ` <jXNOa-5MR-23@gated-at.bofh.it>
     [not found]       ` <jXPGh-87s-5@gated-at.bofh.it>
     [not found]         ` <jXTJW-4CH-55@gated-at.bofh.it>
     [not found]           ` <jXUZj-6mo-13@gated-at.bofh.it>
     [not found]             ` <jXVLH-7kO-5@gated-at.bofh.it>
     [not found]               ` <jXW53-7CC-5@gated-at.bofh.it>
     [not found]                 ` <jXWeJ-7Lk-1@gated-at.bofh.it>
2012-10-24 17:38                   ` Apparent serious progressive ext4 data corruption bug in 3.6.3 (and other stable branches?) Martin
2012-10-26 20:13                     ` Martin
2012-10-26 20:24                       ` Nix
2012-10-26 20:44                         ` Martin
2012-10-26 20:47                           ` Nix
2012-10-26 21:10                       ` Theodore Ts'o
2012-10-26 23:15                         ` Martin

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