Well: > It is unclear how to trigger these conditions naturally. I had to force an error branch to find the bug and write a fix. We don't know how to reproduce it in an unmodified environment. Nonetheless we are confident that the real-world issue is fixed by this patch, because the stack traces point there.
I can say that we will keep monitoring errors.ubuntu.com for crash reports after the fix lands. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/2107454 Title: GNOME Shell crashed with SIGABRT at clutter_actor_finalize: assertion failed: (priv->grabs == NULL) on Xorg Status in Mutter: Fix Released Status in mutter package in Ubuntu: Fix Released Status in mutter source package in Noble: Incomplete Status in mutter source package in Oracular: Won't Fix Status in mutter source package in Plucky: Fix Released Status in mutter source package in Questing: Fix Released Bug description: [ Impact ] When dragging a window around, GNOME Shell might crash and log out the user. To trigger the bug, some conditions need to hold so that GNOME Shell denies the drag action; after that it will crash trying to handle the failure to drag. It is unclear how to trigger these conditions naturally. [ Test Plan ] 1. Log-in to Ubuntu on Xorg 2. Open an application window 3. Drag the window around by its title bar 4. Verify that GNOME Shell didn't crash and log you out [ Where problems could occur ] The patch affects the ending of a drag operation. A problem may manifest with GNOME Shell crashing, or becoming unresponsive to inputs after ending a window drag. [ Other info ] Ubuntu version (24.04) Gnome 46.0 NVIDIA RTX 3060 NVIDIA driver version (550) --- ProblemType: Bug ApportVersion: 2.28.1-0ubuntu3.5 Architecture: amd64 CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME DisplayManager: gdm3 DistroRelease: Ubuntu 24.04 NonfreeKernelModules: nvidia_modeset nvidia Package: gnome-shell 46.0-0ubuntu6~24.04.8 PackageArchitecture: amd64 ProcEnviron: LANG=en_US.UTF-8 PATH=(custom, no user) SHELL=/bin/bash TERM=xterm-256color XDG_RUNTIME_DIR=<set> ProcVersionSignature: Ubuntu 6.11.0-21.21~24.04.1-generic 6.11.11 RelatedPackageVersions: mutter-common 46.2-1ubuntu0.24.04.7 Tags: noble Uname: Linux 6.11.0-21-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sudo users _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/mutter/+bug/2107454/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
