Hi, On 1/10/21 2:39 AM, Ian Laurie wrote: > I just updated a VirtualBox Rawhide guest with latest updates which included the 5.11.0-rc2 kernel and the system hangs on boot (pic attached). The system was updated a few days ago so was reasonably up to date before today. > > Booting the previous kernel 5.10.0-rc6 still works OK. > > In case something weird happened in the update, I reverted to a backed up copy of the vm (also reasonably up to date) and updated kernel* and rebooted with the exact same results. > > Is anyone else seeing this problem with VirtualBox guests? I can confirm the issue. This is likely related to the vboxvideo driver, 5.11 has seen some cleanup of the gem/ttm and fb_helper code which vboxvideo uses and I believe that that has broken it. I'm trying to see if a can pinpoint the exact bad commit and then I will report this upstream. Can you please file a bug for this in bugzilla, using kernel as the component? : https://bugzilla.redhat.com/enter_bug.cgi?product=Fedora Regards, Hans _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx