Comment 0 for bug 1714542

As of an upgrade to 3.25.91 (last session that did not exhibit this behavior was a 3.24.x session), I've experienced several crashes of the shell in the overview. journalctl shows the following output at the time of the crash:

Sep 01 08:14:41 spiny org.gnome.Shell.desktop[8792]: Window manager warning: Overwriting existing binding of keysym ffb5 with keysym ffb5 (keycode 54).
Sep 01 08:14:41 spiny gnome-shell[8506]: meta_renderer_native_release_onscreen: assertion 'onscreen_native->gbm.next_fb_id == 0' failed
Sep 01 08:14:41 spiny gnome-shell[8506]: _cogl_onscreen_free: assertion 'onscreen->winsys == ((void *)0)' failed
Sep 01 08:14:41 spiny kernel: gnome-shell[8506]: segfault at 1a0 ip 00007fc6008dd296 sp 00007fff2df360f0 error 4 in libmutter-1.so.0.0.0[7fc6007f9000+13e000]
Sep 01 08:14:41 spiny org.gnome.Shell.desktop[8506]: (EE)
Sep 01 08:14:41 spiny org.gnome.Shell.desktop[8506]: Fatal server error:
Sep 01 08:14:41 spiny org.gnome.Shell.desktop[8506]: (EE) failed to read Wayland events: Connection reset by peer
Sep 01 08:14:41 spiny org.gnome.Shell.desktop[8506]: (EE)
Sep 01 08:14:41 spiny gnome-session[8488]: gnome-session-binary[8488]: WARNING: Application 'org.gnome.Shell.desktop' killed by signal 11
Sep 01 08:14:41 spiny gnome-session-binary[8488]: Unrecoverable failure in required component org.gnome.Shell.desktop
Sep 01 08:14:41 spiny gnome-session-binary[8488]: WARNING: Application 'org.gnome.Shell.desktop' killed by signal 11
Sep 01 08:14:41 spiny polkitd(authority=local)[1424]: Unregistered Authentication Agent for unix-session:c3 (system bus name :1.868, object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8) (disco
Sep 01 08:14:41 spiny gsd-media-keys[8610]: gsd-media-keys: Fatal IO error 11 (Resource temporarily unavailable) on X server :1024.
Sep 01 08:14:41 spiny gsd-keyboard[8607]: gsd-keyboard: Fatal IO error 11 (Resource temporarily unavailable) on X server :1024.
Sep 01 08:14:41 spiny gsd-clipboard[8596]: gsd-clipboard: Fatal IO error 11 (Resource temporarily unavailable) on X server :1024.
Sep 01 08:14:41 spiny gsd-power[8613]: gsd-power: Fatal IO error 11 (Resource temporarily unavailable) on X server :1024.
Sep 01 08:14:41 spiny gsd-color[8599]: gsd-color: Fatal IO error 11 (Resource temporarily unavailable) on X server :1024.
Sep 01 08:14:41 spiny org.a11y.atspi.Registry[8529]: XIO: fatal IO error 11 (Resource temporarily unavailable) on X server ":1024"
Sep 01 08:14:41 spiny org.a11y.atspi.Registry[8529]: after 21 requests (21 known processed) with 0 events remaining.
Sep 01 08:14:41 spiny gdm-launch-environment][8400]: pam_unix(gdm-launch-environment:session): session closed for user gdm
Sep 01 08:14:41 spiny systemd-logind[1376]: Removed session c3.
Sep 01 08:14:41 spiny systemd[1]: Stopping User Manager for UID 121...
Sep 01 08:14:41 spiny systemd[8432]: Stopping Accessibility services bus...
Sep 01 08:14:41 spiny systemd[8432]: Stopping Sound Service...
Sep 01 08:14:41 spiny systemd[8432]: Stopped target Default.
Sep 01 08:14:41 spiny systemd[8432]: Stopping D-Bus User Message Bus...
Sep 01 08:14:41 spiny systemd[8432]: Stopping sandboxed app permission store...
Sep 01 08:14:41 spiny systemd[8432]: Stopped sandboxed app permission store.
Sep 01 08:14:41 spiny systemd[8432]: Stopped D-Bus User Message Bus.
Sep 01 08:14:41 spiny systemd[8432]: Stopped Accessibility services bus.
Sep 01 08:14:41 spiny systemd[8432]: Stopped Sound Service.
Sep 01 08:14:41 spiny systemd[8432]: Stopped target Basic System.
Sep 01 08:14:41 spiny systemd[8432]: Stopped target Paths.
Sep 01 08:14:41 spiny systemd[8432]: Stopped target Timers.
Sep 01 08:14:41 spiny systemd[8432]: Stopped target Sockets.
Sep 01 08:14:41 spiny systemd[8432]: Closed D-Bus User Message Bus Socket.
Sep 01 08:14:41 spiny systemd[8432]: Closed Sound System.
Sep 01 08:14:41 spiny systemd[8432]: Reached target Shutdown.
Sep 01 08:14:41 spiny systemd[8432]: Starting Exit the Session...
Sep 01 08:14:41 spiny systemd[8432]: Received SIGRTMIN+24 from PID 8854 (kill).
Sep 01 08:14:41 spiny systemd[1]: Stopped User Manager for UID 121.
Sep 01 08:14:41 spiny systemd[1]: Removed slice User Slice of gdm.

ProblemType: Crash
DistroRelease: Ubuntu 17.10
Package: gnome-shell 3.25.91-0ubuntu1
ProcVersionSignature: Ubuntu 4.12.0-12.13-generic 4.12.8
Uname: Linux 4.12.0-12-generic x86_64
ApportVersion: 2.20.7-0ubuntu1
Architecture: amd64
CurrentDesktop: GNOME
Date: Fri Sep 1 08:13:58 2017
DisplayManager: gdm3
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/gnome-shell
InstallationDate: Installed on 2015-08-21 (742 days ago)
InstallationMedia: Ubuntu-GNOME 15.10 "Wily Werewolf" - Alpha amd64 (20150819)
ProcCmdline: /usr/bin/gnome-shell
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f36d97a3a80: mov 0x80(%rdi),%eax
 PC (0x7f36d97a3a80) ok
 source "0x80(%rdi)" (0x00000080) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: gnome-shell
StacktraceTop:
 () at /usr/lib/gnome-shell/libst-1.0.so
 () at /usr/lib/gnome-shell/libst-1.0.so
 st_theme_node_paint () at /usr/lib/gnome-shell/libst-1.0.so
 st_widget_paint_background () at /usr/lib/gnome-shell/libst-1.0.so
 () at /usr/lib/gnome-shell/libst-1.0.so
Title: gnome-shell crashed with SIGSEGV
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip docker input lpadmin lxd plugdev sambashare sudo systemd-journal wireshark