Getting error "AMD-Vi: Failed to allocate IRTE" when gen4 NVMe attached
Issue
- Getting below message when NVMe drives support 256 IO queues and 1 admin queue and when the system has 256 CPUs.
#dmesg | grep -i fail
"AMD-Vi: Failed to allocate IRTE"
Environment
- Red Hat Enterprise Linux 8.0 or later
- AMD EPYC platform with 256 core CPUs
- Dell EMC PowerEdge Express Flash Enterprise NVMe Agnostic (AGN) device
- Gen4 Kioxia CM6 NVMe
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