RHEL5: Commands hang after file system freeze

Solution Verified - Updated -

Issue

  • We have observed 2 servers (VMs - running on VMware platform)that experienced a kernel panic at around the same time.
  • Commands hang after filesystem freeze using fsfreeze.
# fsfreeze -f /mnt
# ls /mnt/
[hang]
  • We are using a custom script to freeze the root (/) file system while taking a snapshot from the VMware. The following one liner works on RHEL 6.4, but the same doesn't work on RHEL 5.9!
/sbin/fsfreeze -f / && sleep 30 && /sbin/fsfreeze -u /
  • Is there any bug in the fsfreeze on RHEL 5 vs RHEL6.4? Can we can upgrade util-linux to same as on RHEL6.4?

Environment

  • Red Hat Enterprise Linux 5
    • fsfreeze
    • local filesystem (ext3, ext4, xfs, etc)

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