linux-ext4 - [Bug 89621] New: EXT4-fs error (device dm-1): ext4_mb_release_inode_pa:3773: group 24089, free 34, pa

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Date:	Fri, 12 Dec 2014 12:28:11 +0000
From:	bugzilla-daemon@...zilla.kernel.org
To:	linux-ext4@...r.kernel.org
Subject: [Bug 89621] New: EXT4-fs error (device dm-1):
 ext4_mb_release_inode_pa:3773: group 24089, free 34, pa_free 32

https://bugzilla.kernel.org/show_bug.cgi?id=89621

            Bug ID: 89621
           Summary: EXT4-fs error (device dm-1):
                    ext4_mb_release_inode_pa:3773: group 24089, free 34,
                    pa_free 32
           Product: File System
           Version: 2.5
    Kernel Version: 3.16
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: ext4
          Assignee: fs_ext4@...nel-bugs.osdl.org
          Reporter: john@...va.com
        Regression: No

I've been getting this EXT4 error (on an ext3 filesystem) on two virtual
machines, running Debian kernel 3.16-0.bpo.2-amd64.

The stack is:

Host (3.16): Mdadm raid1
LVM
Guest (also 3.16): LVM2 volume, ext3 formatted

[    7.413209] EXT4-fs (dm-4): mounting ext3 file system using the ext4
subsystem
[    7.431191] EXT4-fs (dm-4): warning: maximal mount count reached, running
e2fsck is recommended
[    7.442501] EXT4-fs (dm-4): mounted filesystem with journalled data mode.
Opts: data=journal,errors=remount-ro
...
[957229.875900] EXT4-fs (dm-4): pa ffff88001f7ff980: logic 0, phys. 9176576,
len 128
[957229.878640] EXT4-fs error (device dm-4): ext4_mb_release_inode_pa:3773:
group 280, free 128, pa_free 127
[957229.881350] Aborting journal on device dm-4-8.
[957229.891273] EXT4-fs (dm-4): Remounting filesystem read-only
[957561.369731] EXT4-fs (dm-4): pa ffff880009f7b028: logic 0, phys. 9192448,
len 512
[957561.371926] EXT4-fs error (device dm-4): ext4_mb_release_inode_pa:3773:
group 280, free 512, pa_free 511
[957688.608554] EXT4-fs error (device dm-4): ext4_put_super:792: Couldn't clean
up the journal

This is https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=772848

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