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greg-lamini
Journeyman III

IOMMU for ROCm 5.7

If you try installing ROCm on a new AMD CPU server, e.g. Genoa, you may note that the driver fails to load on boot up. 

In the dmesg you may see something like amdgpu: .... invalid argument

Turning on the iommu worked for us, as described here:

https://community.amd.com/t5/knowledge-base/iommu-advisory-for-amd-instinct/ta-p/484601

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