Hi,
On 1/12/21 1:36 PM, Hans de Goede wrote:
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
I've managed to find and fix the bug which is causing this today,
and I have posted a patch fixing this upstream, so hopefully the
fix will make 5.11-rc4 (otherwise it should be in -rc5). No need
to file a bug and I suggest just sticking with 5.10 until this
is fixed in the 5.11 rc-s.
Regards,
Hans