시스템 충돌, 정전 또는 기타 비정형 마운트 해제 시 XFS는 저널(로그라고도 함)을 사용하여 파일 시스템을 복구합니다. XFS 파일 시스템을 마운트할 때 커널이 저널 복구를 수행합니다.
XFS가 파일 시스템 또는 파일 시스템 메타데이터의 손상을 감지하면 파일 시스템을 종료하고 시스템 로그에서 문제를 보고할 수 있습니다. /var 디렉토리를 호스팅하는 파일 시스템에서 손상이 발생한 경우 재부팅 후에는 이러한 로그를 사용할 수 없습니다.
dmesg --notime | tail -15
XFS (loop0): Mounting V5 Filesystem
XFS (loop0): Metadata CRC error detected at xfs_agi_read_verify+0xcb/0xf0 [xfs], xfs_agi block 0x2
XFS (loop0): Unmount and run xfs_repair
XFS (loop0): First 128 bytes of corrupted metadata buffer:
00000000027b3b56: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
000000005f9abc7a: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
000000005b0aef35: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000000da9d2ded: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
000000001e265b07: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
000000006a40df69: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
000000000b272907: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000000e484aac5: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
XFS (loop0): metadata I/O error in "xfs_trans_read_buf_map" at daddr 0x2 len 1 error 74
XFS (loop0): xfs_imap_lookup: xfs_ialloc_read_agi() returned error -117, agno 0
XFS (loop0): Failed to read root inode 0x80, error 11
# dmesg --notime | tail -15
XFS (loop0): Mounting V5 Filesystem
XFS (loop0): Metadata CRC error detected at xfs_agi_read_verify+0xcb/0xf0 [xfs], xfs_agi block 0x2
XFS (loop0): Unmount and run xfs_repair
XFS (loop0): First 128 bytes of corrupted metadata buffer:
00000000027b3b56: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
000000005f9abc7a: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
000000005b0aef35: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000000da9d2ded: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
000000001e265b07: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
000000006a40df69: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
000000000b272907: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000000e484aac5: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
XFS (loop0): metadata I/O error in "xfs_trans_read_buf_map" at daddr 0x2 len 1 error 74
XFS (loop0): xfs_imap_lookup: xfs_ialloc_read_agi() returned error -117, agno 0
XFS (loop0): Failed to read root inode 0x80, error 11
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mount: /mount-point: mount(2) system call failed: Structure needs cleaning.
mount: /mount-point: mount(2) system call failed: Structure needs cleaning.
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