My bug #1763850 got marked as a dupplicate (and probably is). It's seems to only occur once after a fresh install on my system. I tried to reproduced and succeeded. What I did was: a fresh install with encrypted drive, login to regular "ubuntu"-session, update all software, reboot, login to "ubuntu wayland"-session -> image freezes -> thrown-back to login screen, login to regular "ubuntu"-session, do things for a few minutes (I was surfing with firefox both times) -> crash report appears on-screen.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1754445 Title: gnome-shell crashed with SIGSEGV in cogl_object_unref() from iter_remove_or_steal() from g_hash_table_iter_remove() from st_texture_cache_evict_icons() from on_icon_theme_changed() Status in gnome-shell package in Ubuntu: Confirmed Bug description: https://errors.ubuntu.com/problem/990288ee13e03a048791700aa0af1ccfaecd49bc https://errors.ubuntu.com/problem/e4d313a6d362e991dc79947946d24a22a3a2f84a --- i don´t know ProblemType: Crash DistroRelease: Ubuntu 18.04 Package: gnome-shell 3.27.92-0ubuntu1 ProcVersionSignature: Ubuntu 4.15.0-10.11-generic 4.15.3 Uname: Linux 4.15.0-10-generic x86_64 ApportVersion: 2.20.8-0ubuntu10 Architecture: amd64 CurrentDesktop: GNOME-Greeter:GNOME Date: Thu Mar 8 20:18:43 2018 DisplayManager: gdm3 ExecutablePath: /usr/bin/gnome-shell GsettingsChanges: InstallationDate: Installed on 2018-03-08 (0 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180308) ProcCmdline: /usr/bin/gnome-shell SegvAnalysis: Segfault happened at: 0x7f921c91b510 <cogl_object_unref>: mov (%rdi),%rax PC (0x7f921c91b510) ok source "(%rdi)" (0x00000000) not located in a known VMA region (needed readable region)! destination "%rax" ok SegvReason: reading NULL VMA Signal: 11 SourcePackage: gnome-shell StacktraceTop: cogl_object_unref () from /usr/lib/x86_64-linux-gnu/mutter/libmutter-cogl-2.so ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 ?? () from /usr/lib/gnome-shell/libst-1.0.so g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 Title: gnome-shell crashed with SIGSEGV in cogl_object_unref() UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1754445/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : firstname.lastname@example.org Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp