Centos 7 LVM xfs檔案系統修複
情況1：
[sda] Assuming drive cache: write through
Internal error xfs XFS_WANT_CORRUPTED_GOTO at line 1662 of file fs/xfs/libxfs/xfs_alloc.c Caller xfs_free_extent+0x130 [xfs]
Internal error xfs_trans_cancel at line 990 of file fs/xfs/xfs_trans.c.Caller xlog_recover_process_efi +0x16b/0x190 [xfs]
Corruption of in-memory data detected. Shutting down filesystem
Please umount the filesystem and rectify the problem(s)
Failed to recover EFIs
Generating "/run/initramfs/rdsosreport.txt"
如果是LVM管理分區的
ls -l /dev/mapper
xfs_repair /dev/mapper/cl_muban-root
若提示
xfs_repair -L /dev/mapper/cl_muban-root
最後重新開機
init 6
情況2：
[sda] Assuming drive cache: write through
Metadata corruption detected at xfs_agi_read_verify+0x5e/0x110 [xfs], xfs_agi block 0x2
Unmount and run xfs_repair
First 64 bytes of corrupted metadata buffer:
XFS (dm-0)：metadata I/O error: block 0x2 ("xfs_trans_read_buf_map") error 117 numblks 1
修複步驟：
ls -l /dev/mapper
mkdir /mnt
mount /dev/mapper/cl_muban-root /mnt # 這裡也可以操作 提示中的 dm-0 (即 /dev/dm-0，其實/dev/mapper/cl_muban-root是連結到 /dev/dm-0 )
umount /mnt
xfs_repair /dev/mapper/cl_muban-root # 或 xfs_repair /dev/dm-0
init 6 (reboot重新開機系統)