** Attachment added: "ThreadStacktrace.txt"
   
https://bugs.launchpad.net/bugs/1715179/+attachment/4944803/+files/ThreadStacktrace.txt

** Attachment removed: "CoreDump.gz"
   
https://bugs.launchpad.net/bugs/1715179/+attachment/4944791/+files/CoreDump.gz

** Changed in: gnome-shell (Ubuntu)
   Importance: Undecided => Medium

** Summary changed:

- gnome-shell crashed with SIGSEGV in free()
+ gnome-shell crashed with SIGSEGV in __GI___libc_free()

** Tags removed: need-amd64-retrace

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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/1715179

Title:
  gnome-shell crashed with SIGSEGV in __GI___libc_free()

Status in gnome-shell package in Ubuntu:
  New

Bug description:
  Ubuntu Artful Desktop up to date

  Test Case
  1. Login with wayland
  2. Logout
  3. Login with X
  4. Logout
  5. Repeat from step 1 until this crash happens

  ProblemType: Crash
  DistroRelease: Ubuntu 17.10
  Package: gnome-shell 3.25.91-0ubuntu3
  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
  CrashCounter: 1
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Sep  5 16:28:07 2017
  DisplayManager: gdm3
  ExecutablePath: /usr/bin/gnome-shell
  GsettingsChanges:
   b'org.gnome.shell' b'had-bluetooth-devices-setup' b'true'
   b'org.gnome.shell' b'favorite-apps' b"['org.gnome.Nautilus.desktop', 
'firefox.desktop', 'google-chrome-beta.desktop', 'streamtuner2.desktop']"
   b'org.gnome.desktop.interface' b'gtk-im-module' b"'gtk-im-context-simple'"
  InstallationDate: Installed on 2014-07-23 (1140 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 
(20140722.2)
  ProcCmdline: /usr/bin/gnome-shell
  ProcEnviron:
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=fr_FR.UTF-8
   SHELL=/bin/bash
  SegvAnalysis:
   Segfault happened at: 0x7f5f3bde9d52 <free+66>:      mov    (%rax),%rdi
   PC (0x7f5f3bde9d52) ok
   source "(%rax)" (0x1814000000) not located in a known VMA region (needed 
readable region)!
   destination "%rdi" ok
  SegvReason: reading unknown VMA
  Signal: 11
  SourcePackage: gnome-shell
  StacktraceTop:
   free () from /lib/x86_64-linux-gnu/libc.so.6
   meta_run () from /usr/lib/x86_64-linux-gnu/libmutter-1.so.0
   ?? ()
   __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
   ?? ()
  Title: gnome-shell crashed with SIGSEGV in free()
  UpgradeStatus: Upgraded to artful on 2017-06-13 (84 days ago)
  UserGroups: adm dialout libvirt lpadmin lxd sambashare sudo

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