RHV: qemu-kvm-rhev crashed with "Co-routine was already scheduled" during block-commit and extend of thin disk.

Solution Verified - Updated -


  • Virtual Machine with thin-provisioned disk crashed while deleting snapshot.


  • Red Hat Virtualization 4.3
    • Red Hat Enterprise Linux 7.8
      • qemu-kvm-rhev-2.12.0-44.el7.x86_64
    • Block Storage (iSCSI or Fibre Channel)
    • Thin-Provisioned Disks and Snapshots

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