https://bugzilla.kernel.org/show_bug.cgi?id=217796 --- Comment #3 from sonst+kernel@xxxxxxxxxxx --- Sean, it does sound ridiculous, but it isn't. I tested the fix you suggested and it works now with that patch applied. In the meantime i switched to a differnet machine to be able to test your fix and there I could also confirm the problem there on a 6.4.11 kernel: Test machine setup: Gentoo, (vanilla) Kernel 6.4.11 Without the patch and spec_rstack_overflow in the default meaning pec_rstack_overflow=safe-ret also on this system my nested VMs do not start and get OOM-killed. I then applied the patch from your link, Sean, and it works now. Cheers, Oliver -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.