This bug was fixed in the package mesa - 23.2.1-1ubuntu3.1
---------------
mesa (23.2.1-1ubuntu3.1) mantic; urgency=medium
* patches: Avoid crashing virglrenderer when the host doesn't support
PIPE_CAP_CLEAR_TEXTURE (LP: #2038834)
-- Mate Kukri <mate.ku...@canonical.com> Tue, 07 Nov 2023 15:41:32
+0200
** Changed in: mesa (Ubuntu Mantic)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/2038834
Title:
GPU acceleration via VirGL is broken in qemu
Status in Release Notes for Ubuntu:
New
Status in mesa package in Ubuntu:
Fix Released
Status in mesa source package in Mantic:
Fix Released
Status in mesa source package in Noble:
Fix Released
Bug description:
[ Impact ]
* Enabling GPU acceleration can cause host-side crashes on mantic/noble VMs
* This was reported by someone else upstream and is already fixed by
https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25580.
[ Test Plan ]
* I've tested the patch on an affected macOS host running Ubuntu in UTM with
OpenGL enabled on both Mantic and Noble VMs.
* Anyone else can do the same on an affected host by simply installing the
patched package and booting to the desktop.
[ Where problems could occur ]
* This patch fixes an upstream mesa regression which caused libvirglrendrer
to
crash on the host side.
* This makes a non-working use case work, VirGL on affected hosts cannot
regress as it simply didn't work before.
* Risk of breakage is mainly from other packages possible affected by a mesa
rebuild.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-release-notes/+bug/2038834/+subscriptions
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