gnome-shell crashed with SIGSEGV in meta_window_get_monitor()

[Thomas Mortagne]

I get this when switching off the screen and then back on, when image come back my session has crashed.

I try to disable all extensions from gnome-tweak-tool (top bar button in Extensions section) but it did not help.

ProblemType: Crash
DistroRelease: Ubuntu 17.10
Package: gnome-shell 3.26.2-0ubuntu0.1
ProcVersionSignature: Ubuntu 4.13.0-32.35-generic 4.13.13
Uname: Linux 4.13.0-32-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.7
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Tue Feb 20 13:49:04 2018
DisplayManager: gdm3
ExecutablePath: /usr/bin/gnome-shell
ExecutableTimestamp: 1510175942
GsettingsChanges:
 b'org.gnome.shell' b'disable-user-extensions' b'true'
 b'org.gnome.shell' b'favorite-apps' b"['gnome-system-monitor.desktop', 'firefox.desktop', 'google-chrome.desktop', 'filezilla.desktop', 'org.gnome.Nautilus.desktop', 'org.gnome.Terminal.desktop', 'steam.desktop', 'rhythmbox.desktop']"
 b'org.gnome.desktop.interface' b'gtk-im-module' b"'gtk-im-context-simple'"
 b'org.gnome.desktop.interface' b'text-scaling-factor' b'1.25'
InstallationDate: Installed on 2016-10-22 (485 days ago)
InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2)
ProcCmdline: /usr/bin/gnome-shell
ProcCwd: /home/media
SegvAnalysis:
 Segfault happened at: 0x7fb7d7d282d4 <meta_window_get_monitor+4>: mov 0x18(%rax),%eax
 PC (0x7fb7d7d282d4) ok
 source "0x18(%rax)" (0x00000018) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: gnome-shell
StacktraceTop:
 meta_window_get_monitor () from /usr/lib/x86_64-linux-gnu/libmutter-1.so.0
 ffi_call_unix64 () from /usr/lib/x86_64-linux-gnu/libffi.so.6
 ffi_call () from /usr/lib/x86_64-linux-gnu/libffi.so.6
 ?? () from /usr/lib/libgjs.so.0
 ?? () from /usr/lib/libgjs.so.0
Title: gnome-shell crashed with SIGSEGV in meta_window_get_monitor()
UpgradeStatus: Upgraded to artful on 2018-02-18 (1 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Thomas Mortagne (thomas-mortagne)]

Related to https://bugs.launchpad.net/gnome-shell/+bug/1721428

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #1724439, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.