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  1. Lustre
  2. LU-17136

ext4 extent tree: increase max depth

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    • Icon: Improvement Improvement
    • Resolution: Fixed
    • Icon: Minor Minor
    • Lustre 2.16.0
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    • 3
    • 9223372036854775807

      With some unusual workloads, it is possible for the ldiskfs extent index tree to grow larger than 5 levels deep, and remount the OST read-only as with an error.

      Apr 27 10:32:53 oss7 kernel: LDISKFS-fs error (device sdb): ldiskfs_ext_find_extent:858: inode #20530609: comm ll_ost_io06_005: inode has invalid extent depth: 6
Apr 27 10:32:53 oss7 kernel: Aborting journal on device sdb-8.
Apr 27 10:32:53 oss7 kernel: LDISKFS-fs (sdb): Remounting filesystem read-only

            bzzz Alex Zhuravlev
            bzzz Alex Zhuravlev
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