Server panics with "Kernel panic - not syncing: hung_task: blocked tasks" due to involvement of third party modules [vxgms] and [vxfen].

Solution Verified - Updated -

Issue

  • Kernel panics with following messages:

    Kernel panic - not syncing: hung_task: blocked tasks
...
[  246.362123] Call Trace:
[  246.362132]  dump_stack+0x41/0x60
[  246.362146]  panic+0xe7/0x2ac
[  246.362162]  watchdog+0x25c/0x2f0
[  246.362176]  ? hungtask_pm_notify+0x50/0x50
[  246.362191]  kthread+0x134/0x150
[  246.362204]  ? set_kthread_struct+0x50/0x50
[  246.362218]  ret_from_fork+0x35/0x40

Environment

  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9
  • Third-party modules loaded vxgms and vxfen.

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