Verified the fix is present in mutter_3.36.3.orig.tar.xz but as mentioned above, no known test case.
** Tags removed: verification-needed verification-needed-focal ** Tags added: verification-done verification-done-focal ** Description changed: [Impact] This is the #1 crasher of gnome-shell in Ubuntu 20.04, though it's duplicated across multiple problem reports according to locale: https://errors.ubuntu.com/problem/4de3d315d9df1c9699bda54beafeeeea8d52053c https://errors.ubuntu.com/problem/2251b638f7a6167772f922dc5916740522c5c22b https://errors.ubuntu.com/problem/943838b8a80c1da4f8df584b7d2ad3a13361fdd7 https://errors.ubuntu.com/problem/4b78bc9730e8681f0c42fc2ecea14d03544394f0 [Test Case] None known. The plan is to just continue monitoring crash reports. Still, we are confident this is the fix because: * The offending source code in libx11 tells us it is :) and * The crash only started in Ubuntu with gnome-shell 3.34, which is the exact release in which XInitThreads was removed from mutter. [Regression Potential] Low. We add a single function call that tells libX11 to enable thread - safety. This same function call as one we had in bionic, cosmic and - disco. + safety. This is the same as what we had in bionic, cosmic and disco, so + it's well tested. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1877075 Title: gnome-shell crashed at xcb_io.c:260: poll_for_event: Assertion `!xcb_xlib_threads_sequence_lost'' failed To manage notifications about this bug go to: https://bugs.launchpad.net/mutter/+bug/1877075/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
