Hello Gert, or anyone else affected, Accepted mutter into bionic-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/mutter/3.28.3+git20190124-0ubuntu18.04.2 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 and change the tag from verification-needed-bionic to verification-done-bionic. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-bionic. 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. ** Tags removed: verification-done verification-done-bionic ** Tags added: verification-needed verification-needed-bionic -- 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/1790525 Title: gnome-shell assert failure: double free or corruption (fasttop) in g_free() from g_error_free() from cogl_error_free() from cogl_texture_new_with_size() from clutter_offscreen_effect_real_create_texture() Status in mutter package in Ubuntu: Fix Released Status in mutter source package in Bionic: Fix Committed Status in mutter source package in Cosmic: Fix Released Bug description: [ Impact ] Gnome shell crashes on double free Problem is occurring if dual monitor is used. Second monitor is repeatingly blank and activated again. At the bottom it probably contains the upper part of the first monitor. I had the same problem at 18.04 when using gdm3 without wayland during logon. [ Test case ] - Run gnome-shell with multimonitor - No flashing should happen on gdm initialization Also we should monitor crashes in e.u.c [ Regression potential ] Low, the proposed fix is part of the current stable branch upstream and not changed in further revisions. -- ProblemType: CrashDistroRelease: Ubuntu 18.10 Package: gnome-shell 3.29.90-2ubuntu1 ProcVersionSignature: Ubuntu 4.17.0-9.10-generic 4.17.17 Uname: Linux 4.17.0-9-generic i686 ApportVersion: 2.20.10-0ubuntu9 Architecture: i386 AssertionMessage: double free or corruption (fasttop) CurrentDesktop: ubuntu:GNOME Date: Mon Sep 3 21:02:58 2018 DisplayManager: gdm3 ExecutablePath: /usr/bin/gnome-shell GsettingsChanges: b'org.gnome.desktop.interface' b'gtk-im-module' b"'gtk-im-context-simple'" ProcCmdline: /usr/bin/gnome-shell ProcEnviron: LANGUAGE=en_US:en PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash Signal: 6SourcePackage: gnome-shell StacktraceTop: __libc_signal_restore_set (set=0xbfcd5e9c) at ../sysdeps/unix/sysv/linux/nptl-signals.h:80 __GI_raise (sig=6) at ../sysdeps/unix/sysv/linux/raise.c:48 __GI_abort () at abort.c:79 __libc_message (action=do_abort, fmt=<optimized out>) at ../sysdeps/posix/libc_fatal.c:181 malloc_printerr (str=str@entry=0xb6b437e8 "double free or corruption (fasttop)") at malloc.c:5350 Title: gnome-shell assert failure: double free or corruption (fasttop) UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1790525/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

