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Hi, One of our VMware VMs crashed which has resulted in a few XFS filesystems unable to mount and be repaired. Some VM details: -
Distribution is CentOS 7 -
Partitions reside inside LVM -
Tried CentOS provided xfsprogs-3.2.0-alpha2 as well as manually compiling 3.2.2 When attempting to mount: [71895.922382] XFS (dm-9): Mounting Filesystem [71895.994614] XFS (dm-9): Starting recovery (logdev: internal) [71896.000910] XFS (dm-9): Metadata corruption detected at xfs_agf_read_verify+0x70/0x120 [xfs], block 0x753001 [71896.002304] XFS (dm-9): Unmount and run xfs_repair [71896.003649] XFS (dm-9): First 64 bytes of corrupted metadata buffer: [71896.005049] ffff8800b1200c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [71896.006468] ffff8800b1200c10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [71896.007799] ffff8800b1200c20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [71896.009116] ffff8800b1200c30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [71896.010482] XFS (dm-9): metadata I/O error: block 0x753001 ("xfs_trans_read_buf_map") error 117 numblks 1 mount: mount /dev/mapper/data-srv on /srv failed: Structure needs cleaning xfs_repair: xfs_repair /dev/mapper/data-srv Phase 1 - find and verify superblock... couldn't verify primary superblock - bad magic number !!! attempting to find secondary superblock... … Found candidate secondary superblock… Unable to verify superblock, continuing… And on it goes until it eventually gives up. There are two XFS partitions that are having these issues. The other 8 this VM has ended up repairing and mounting properly. If there is anything I can do to fix these issues that would be appreciated. I have a bit of time before this VM needs to be up and running (which will involve formatting the filesystem and restoring from a backup). I’d love to help out
the XFS project by providing any debug information you might find useful. Regards, Gerard Beekmans |
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