Hello Jean-Baptiste, or anyone else affected, Accepted mesa into focal-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/mesa/21.0.3-0ubuntu0.3~20.04.4 in a few hours, and then in the -proposed repository.
Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users. If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed- focal to verification-done-focal. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification- failed-focal. In either case, without details of your testing we will not be able to proceed. Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping! N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days. ** Changed in: mesa (Ubuntu Focal) Status: Triaged => Fix Committed ** Tags added: verification-needed verification-needed-focal -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1950174 Title: [SRU] focal: gallium: Reset {d,r}Priv in dri_unbind_context Status in mesa package in Ubuntu: Fix Released Status in mesa source package in Focal: Fix Committed Bug description: [Description] This is a request to backport this fix from mesa 21.1 to focal-updates which is affecting users of WSL: https://gitlab.freedesktop.org/mesa/mesa/-/commit/7ff30a0499bd872d77b0f377414bbc03463b9f87 This cached stale pointer is causing various chromium applications (Edge, Chrome, Visual Studio Code, etc…) to hang on resize when vGPU is enabled in WSLg. We’re getting incredibly unlucky because a glx drawable is being freed and reallocated with exactly the same heap pointers during a resize, which is causing Mesa to think the new drawable is already fully initialized when binded to the context, but it is not true and only because the new drawable is matching the old stale pointer for the previously freed drawable… and as a result the context remain invalid and the app is unable to present. With the push of WDDMv3 drivers which expose vGPU in WSL, the number of users hitting this issue is increasing. [Test Case] On Windows 11 with WSLg and Ubuntu 20.04 1. Verify that hardware acceleration is enable either with glxinfo -B or in edge with edge://gpu 2. Install and launch chrome, edge or vscode 3. Resize the windows repeatedly Verification: The app must not crash or hang. [What could go wrong] The patch resets two pointers to NULL in dri_unbind_context(), which is correct for that function and can't regress anything else. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1950174/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
