Trying some 4 extra parameters to see if it will help or not. Will report when issue happens again.
quiet idle=nomwait pci=nocrs pci=realloc processor.max_cstate=5 amd_iommu=on iommu=pt vfio_iommu_type1.allow_unsafe_interrupts=1 vfio-pci.ids=10de:22e8,10de:2bb1 initcall_blacklist=sysfb_init
quiet idle=nomwait pci=nocrs pci=realloc processor.max_cstate=5 amd_iommu=on iommu=pt vfio_iommu_type1.allow_unsafe_interrupts=1 vfio-pci.ids=10de:22e8,10de:2bb1 initcall_blacklist=sysfb_init