Could you boot with iommu=soft boot option? If you can, it looks like upstream report: https://bugzilla.kernel.org/show_bug.cgi?id=212133
** Bug watch added: Linux Kernel Bug Tracker #212133 https://bugzilla.kernel.org/show_bug.cgi?id=212133 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1921995 Title: hirsute kernels 5.11 do not boot on AMD STONEY hardware To manage notifications about this bug go to: https://bugs.launchpad.net/kernel-sru-workflow/+bug/1921995/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
