Crashes and CPU Errors at Boot since Kernel 5.10

[otherbarry]

Have you tried disabling iommu?

Amdgpu crashes with kernel 5.10

That was a good hint. I disabled iommu in the BIOS and this actually prevents the freezes so far. I made two tests so far and will keep testing. What is the implication of disabling iommu? Is there any negative impact to that? At least my virtualboxes are still running.

IF that doesn’t work just use the 5.4 LTS kernel, check each new 5.10 point release to see if fixed.