RHV for Power: Virtual Machine fails to start with "failed to allocate KVM HPT"

Solution In Progress - Updated -


  • Virtual Machine fails to start with memory related error
  • Host has plenty of free memory
  • Following error is shown in RHV Administration Portal:
qemu-kvm: Failed to allocate KVM HPT of order 33 (try smaller maxmem?): Cannot allocate memory


  • IBM Power 8 Processor (ppc64le)
  • Red Hat Virtualization for IBM Power
  • Red Hat Virtualization 4.0
  • Red Hat Enterprise Linux 7.3 Host
    • kernel-3.10.0-327.36.3.el7.ppc64le
    • qemu-kvm-rhev-2.6.0-27.el7.ppc64le

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