GFS2 filesystem fails to mount after attempting a gfs2_grow and fsck.gfs2 fails

Solution In Progress - Updated -


  • After an attempt to extend a gfs2 filesystem hung, the gfs2 filesystem will not mount and then fsck.gfs2 dies when checking the filesystem:
# fsck.gfs2 -v -y /dev/mapper/shared_fs-lvol1 | tail
   [length 0xfffd]
    rgrp 767 at block 0x2fdfefc intactrgrp found at 0x2fdfefc, length=1, used=0, free=65528
   [length 0xfffd]
    rgrp 768 at block 0x2fefef9 intactrgrp found at 0x2fefef9, length=1, used=0, free=65528
   [length 0xfffd]
    rgrp 769 at block 0x2fffef6 intact [length 0xfffd]
  L5: number of rgs expected     = 769.
  Block #-1 (0xffffffffffffffff) (-50396915 of 5) is not GFS2_METATYPE_RB.
  Attempting to repair the rgrp.
  bad read: Invalid argument from rewrite_rg_block:671: block 18446744073709551615 (0xffffffffffffffff)


  • Red Hat Enterprise Linux Server 6, 7 (with the High Availability Add On and Resilient Storage Add Ons)
  • A Global Filesystem 2(gfs2)

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