Looks like there's a patch but not upstreamed yet, https://patchwork.freedesktop.org/patch/157327/
** Bug watch added: Linux Kernel Bug Tracker #194521 https://bugzilla.kernel.org/show_bug.cgi?id=194521 ** Also affects: linux via https://bugzilla.kernel.org/show_bug.cgi?id=194521 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1747463 Title: kernel crashes during boot unless IOMMU is disabled on Ryzen 1800X To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1747463/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
