Ubuntu
qemu package

  1. Bug #1921754
  2. Comment #6

Comment 6 for bug 1921754

Revision history for this message
Christian Ehrhardt  (paelzer) wrote :

FYI
Out of a different discussion [1] I happened to learn about a kernel side fix [2] which unbreaks this case. It still would help to get the qmeu change landed, but the crashing guest is no more crashing with this.
Therefore I wonder if we should add a kernel task to backport that to the Focal kernel.

That being said, the issue there was a crash if you run SSBD without IBRS, was it a crash as well for you or was it a different symptom?

[1]: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1915063/comments/35
[2]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=841c2be09fe4f495fe5224952a419bd8c7e5b455