RHEL 6 の /var/log/messages に "ext4_lookup: deleted inode referenced" エラーが記録される

Issue

• システムログに以下のようなエラーが記録されます。

EXT4-fs error (device dm-6): ext4_lookup: deleted inode referenced:1048628
EXT4-fs error (device dm-6): ext4_lookup: deleted inode referenced:1048628

• ディレクトリの警告がログに表示されます。

EXT4-fs warning (device dm-6): dx_probe:Unrecognised inode hash code 20
EXT4-fs warning (device dm-6): dx_probe:Corrupt dir inode 1048627, running e2fsck is recommended.

• ext4 ファイルシステムでサービスの停止または開始を要求するクラスターノードでメンテナンスを実行すると、ログにエラーが記録されます。

Mar 18 4:16:41 node1 kernel:EXT4-fs error (device dm-8): ext4_lookup: deleted inode referenced:204277
Mar 18 4:16:41 node1 kernel:EXT4-fs error (device dm-8): ext4_lookup: deleted inode referenced:204280
Mar 18 4:16:41 node1 kernel:EXT4-fs error (device dm-8): ext4_lookup: deleted inode referenced:204279
Mar 18 4:16:41 node1 kernel:EXT4-fs error (device dm-8): ext4_lookup: deleted inode referenced:204283
Mar 18 4:16:41 node1 kernel:EXT4-fs error (device dm-8): ext4_mb_free_metadata:Double free of blocks 4327 (4327 1)
Mar 18 4:16:41 node1 kernel:JBD:Spotted dirty metadata buffer (dev = dm-8, blocknr = 0).There's a risk of filesystem corruption in case of system crash.
Mar 18 4:16:45 node1 kernel:EXT4-fs error (device dm-8): mb_free_blocks: double-free of inode 0's block 563840(bit 6784 in group 17)
Mar 18 4:16:45 node1 kernel:EXT4-fs error (device dm-8): mb_free_blocks: double-free of inode 0's block 563841(bit 6785 in group 17)
Mar 18 4:16:45 node1 kernel:EXT4-fs error (device dm-8): mb_free_blocks: double-free of inode 0's block 563858(bit 6802 in group 17)