kernel hang after soft lockup during umount

Solution Verified - Updated -

Issue

  • Soft lockup, system hang while umount
  • When trying to umount corrupted, read-only ext3 filesystem, the system logs soft lockup and hangs

Environment

  • Red Hat ENterprise Linux 5.4
  • Originally reported in Red Hat Enterprise LInux 5.2; fixed in Red Hat Enterprise Linux 5.3; regression reported in Red Hat Enterprise Linux 5.4

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