Virtual machine reports a "BUG: soft lockup" (or multiple at the same time)

Solution Verified - Updated -

Issue

  • Virtual machine guest suffers multiple soft lockups at the same time
  • We are experiencing kernel panic due to softlockup.
  • Logs show messages like (examples from different sources):

    BUG: soft lockup - CPU#6 stuck for 73s! [flush-253:0:1207]
    BUG: soft lockup - CPU#7 stuck for 74s! [processname:15706]
    BUG: soft lockup - CPU#5 stuck for 63s! [processname:25582]
    BUG: soft lockup - CPU#0 stuck for 64s! [proceessname:15789]
    
    --or--
    
    <time> <hostname> kernel: NMI watchdog: BUG: soft lockup - CPU#6 stuck for 25s! [ksoftirqd/6:38]
    <time> <hostname> kernel: NMI watchdog: BUG: soft lockup - CPU#7 stuck for 22s! [ksoftirqd/7:43]
    <time> <hostname> kernel: NMI watchdog: BUG: soft lockup - CPU#7 stuck for 24s! [NetworkManager:945]
    <time> <hostname> kernel: NMI watchdog: BUG: soft lockup - CPU#7 stuck for 22s! [watchdog/7:41]  
    

    The following line may (or not) also be logged:

    hrtimer: interrupt took NUMBER ns
    

Environment

  • Red Hat Enterprise Linux (any version)
  • Virtual machine

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