https://bugzilla.kernel.org/show_bug.cgi?id=217796 --- Comment #1 from sonst+kernel@xxxxxxxxxxx --- Note, adding spec_rstack_overflow=off as a kernel command line makes nested VM boot properly again without problems: https://bugs.archlinux.org/task/79384 So, spec_rstack_overflow=safe-ret is breaking nested KVM virtualization. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.