Logs showing dlm_controld[xxxx]: clear waiter messages

Solution In Progress - Updated -

Issue

  • Logs showing dlm_controld[xxxx]: clear waiter messages. What do they mean?
  • GFS2 file system hangs logs showing following messages from dlm_controld:

    Dec 07 13:41:11 dlm_controld clear waiter ff767 0-7fffffffffffffff 1/26506/ffff8808619bf980
    Dec 07 13:42:46 dlm_controld clear waiter b6015 0-7fffffffffffffff 1/16105/ffff88100e153100
    Dec 07 13:42:56 dlm_controld clear waiter b6015 0-7fffffffffffffff 1/16890/ffff881010e95c00
    

Environment

  • Red Hat Enterprise Linux 6, 7, 8 with the High Availability and Resilient Storage Add Ons(GFS2)

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