Hi everyone, Keith, thanks for testing! It is fantastic news that the test kernel fixes the issue, and our theory is correct, and we are on the right track.
I also tested both test kernels myself, and can confirm that reverting "randomize_kstack: Improve entropy diffusion" fixes the issue, and that "randomize_kstack: Remove non-functional per-arch entropy filtering" has no improvement at all, and still has the issue. So, I think the way forward is to do the unpopular thing, which is to revert "randomize_kstack: Improve entropy diffusion". We should never have changed something so fundamental as the kernel thread stack size on a stable kernel. We can do that on the development release sure, but not on LTS kernels. I will have a talk with the Kernel team about it, but I will begin preparing the patches and writing a SRU template. Thanks, Matthew -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2073267 Title: Virtualbox Guru meditation on VM start caused by kernel commit in v6.9-rc4 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2073267/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
