Failed to allocate default IOMMU domain

Solution In Progress - Updated -


  • During virtual guest boot messages similar to the following are noted on the console:
    (Note. The 'type' and 'group' can vary. Example from a guest boot)
"Failed to allocate default IOMMU domain of type 11 for group (null) - Falling back to IOMMU_DOMAIN_DMA"


  • Red Hat Enterprise Linux 9.0 and later for ARM
  • Red Hat Enterprise Linux 9.1 and later for x86_64
  • Virtual guest

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