Red Hat Enterprise Linux でボリュームをアンマウントすると EXT4 ファイルシステムが破損します
Issue
- db2 データベースに大きな負荷がかかっている際に、以下の ext4 エラーが発生しました。
kernel:EXT4-fs error (device dm-27): mb_free_blocks: double-free of inode 0's block 418269640(bit 18
888 in group 12764)
kernel:EXT4-fs error (device dm-27): mb_free_blocks: double-free of inode 0's block 418269641(bit 18
889 in group 12764)
kernel:EXT4-fs error (device dm-27): mb_free_blocks: double-free of inode 0's block 418269642(bit 18
890 in group 12764)
kernel:EXT4-fs error (device dm-27): mb_free_blocks: double-free of inode 0's block 418269643(bit 18
891 in group 12764)
kernel:EXT4-fs error (device dm-27): mb_free_blocks: double-free of inode 0's block 418269644(bit 18
892 in group 12764)
kernel:EXT4-fs error (device dm-27): mb_free_blocks: double-free of inode 0's block 418269645(bit 18
893 in group 12764)
kernel:EXT4-fs error (device dm-27): mb_free_blocks: double-free of inode 0's block 418269646(bit 18
894 in group 12764)
kernel:EXT4-fs error (device dm-27): mb_free_blocks: double-free of inode 0's block 418269647(bit 18
895 in group 12764)
kernel:EXT4-fs error (device dm-27): mb_free_blocks: double-free of inode 0's block 418269648(bit 18
896 in group 12764)
kernel:EXT4-fs error (device dm-27): mb_free_blocks: double-free of inode 0's block 418269649(bit 18
897 in group 12764)
kernel:EXT4-fs error (device dm-27): mb_free_blocks: double-free of inode 0's block 418269650(bit 18
898 in group 12764)
kernel:EXT4-fs error (device dm-27): mb_free_blocks: double-free of inode 0's block 418269651(bit 18
899 in group 12764)
Environment
- Red Hat Enterprise Linux 5.8 またはそれ以前のバージョン
- Red Hat Enterprise Linux 6.3 またはそれ以前のバージョン
- ext4 ファイルシステム (ext3 では問題は発生しません)
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