From: Theodore Ts'o <tytso@mit.edu>
To: Nathaniel W Filardo <nwf@cs.jhu.edu>
Cc: linux-ext4@vger.kernel.org, admins@acm.jhu.edu
Subject: Re: ext4 metadata corruption bug?
Date: Tue, 6 May 2014 11:42:39 -0400 [thread overview]
Message-ID: <20140506154239.GA5012@thunk.org> (raw)
In-Reply-To: <20140501162503.GL5136@gradx.cs.jhu.edu>
On Thu, May 01, 2014 at 12:25:03PM -0400, Nathaniel W Filardo wrote:
> Here's another kernel report, this time from /dev/sda1, which is a QEMU-IDE
> view of a local LVM volume and is only 4060864 blocks big, so it falls into
> neither the "Ceph's fault" nor "8TB is special" bins:
>
> [922646.672586] EXT4-fs error (device sda1): ext4_mb_generate_buddy:756: group 17, 24652 clusters in bitmap, 24651 in gd; block bitmap corrupt.
So this is a different report from the ones where we see this error:
[817576.492468] EXT4-fs error (device vdd): ext4_mb_release_inode_pa:3729: group 59035, free 14, pa_free 12
Have you seen any more of these errors?
> [922646.712017] BUG: unable to handle kernel NULL pointer dereference at 0000000000000028
> [922646.712017] IP: [<ffffffffa014a7cc>] __ext4_error_inode+0x2c/0x150 [ext4]
FYI, this BUG (which can happens after certain jbd2 errors, which in
your case happened after the journal was aborted) is fixed with commit
66a4cb187b9 which will be in v3.15.
- Ted
next prev parent reply other threads:[~2014-05-06 15:42 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20140409223820.GU10985@gradx.cs.jhu.edu>
[not found] ` <CAGagf4eEzY4+3cfNWSEENTo1PKe40nq1Ne6ZzOLGm-O78W7RcA@mail.gmail.com>
2014-04-10 5:04 ` ext4 metadata corruption bug? Nathaniel W Filardo
2014-04-10 14:03 ` Theodore Ts'o
2014-04-10 16:33 ` Nathaniel W Filardo
2014-04-10 22:17 ` Theodore Ts'o
2014-04-20 16:32 ` Nathaniel W Filardo
2014-04-20 17:57 ` Theodore Ts'o
2014-04-23 7:23 ` Sander Smeenk
2014-04-23 14:36 ` Theodore Ts'o
2014-04-23 15:30 ` Nathaniel W Filardo
2014-04-23 18:05 ` Sander Smeenk
2014-04-29 15:22 ` Nathaniel W Filardo
2014-05-01 16:25 ` Nathaniel W Filardo
2014-05-06 15:42 ` Theodore Ts'o [this message]
2014-05-06 15:51 ` Nathaniel W Filardo
2014-07-31 2:37 ` Theodore Ts'o
2014-08-06 8:53 ` Sander Smeenk
2014-05-01 17:02 ` Sander Smeenk
2014-05-06 14:22 ` Sander Smeenk
2014-05-26 14:59 ` Sander Smeenk
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