RHV: Host briefly not responding, VDSM restart with "connection to libvirt broken"

Solution Verified - Updated -

Issue

  • RHV hypervisor is not responding for a short time.
  • VDSM crashes sporadically.
  • VDSM on the hypervisors restarts itself, as it lost connection with libvirt:
Jan  8 11:29:27 host.example vdsm[3491074]: WARN connection to libvirt broken. ecode: 1 edom: 7
Jan  8 11:29:27 host.example vdsm[3491074]: CRIT taking calling process down.
  • libvirtd process died with segfault
Jan  8 11:29:26 host.example.com abrt-hook-ccpp[3894200]: Process 3490158 (libvirtd) of user 0 killed by SIGSEGV - dumping core

Environment

  • Red Hat Virtualization 4.4
  • Red Hat Enterprise Linux 8.3
    • libvirt-daemon-6.6.0-7.1.module+el8.3.0+8852+b44fca9f.x86_64

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