XFS: Internal error i != 1 at line 3526 of file fs/xfs/libxfs/xfs_btree.c

Issue

• XFS filesystem shutdown following error

  XFS (sda5): Internal error i != 1 at line 3449 of file fs/xfs/libxfs/xfs_btree.c.  Caller xfs_btree_insert+0x1ad/0x260 [xfs]
  ...
  Call Trace:
  dump_stack+0x41/0x60
  xfs_corruption_error+0x8b/0x90 [xfs]
  ? xfs_btree_insert+0x1ad/0x260 [xfs]
  xfs_btree_insert+0x1df/0x260 [xfs]
  ? xfs_btree_insert+0x1ad/0x260 [xfs]
  ? xfs_alloc_fixup_trees+0x28a/0x3b0 [xfs]
  xfs_alloc_fixup_trees+0x28a/0x3b0 [xfs]
  xfs_alloc_cur_finish+0x2b/0xb0 [xfs]
  xfs_alloc_ag_vextent_near+0x3ed/0x500 [xfs]
  xfs_alloc_ag_vextent+0x141/0x150 [xfs]
  xfs_alloc_vextent+0x512/0x620 [xfs]
  ...
  XFS (sda5): Corruption detected. Unmount and run xfs_repair