System logs IO_PAGE_FAULT errors for AMD-Vi

Solution Verified - Updated -

Issue

  • System logs IO_PAGE_FAULT errors for AMD-Vi
  • IOMMU reports IO_PAGE_FAULTs for PCIe gen4 controller on AMD Rome based system

Environment

  • Red Hat Enterprise Linux 7
  • Dell EMC PowerEdge systems
  • 2nd Gen AMD EPYC™ CPU
  • PCIe Gen4 adapters

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