Thanks. That is bug 1731911. Although what you're seeing with your desktop is gnome-shell committing suicide as a result of Xwayland crashing, so that is bug 1505409 or bug 1556601.
It would be most useful to you to track the root cause of the problem so I'll mark this as a duplicate of bug 1731911. ** This bug has been marked a duplicate of bug 1731911 Xwayland crashed with SIGABRT in OsAbort() from AbortServer() from FatalError() from xwl_read_events() from ospoll_wait() -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1730184 Title: org.gnome.Shell.desktop[29954]: intel_do_flush_locked failed: Bad address Status in gnome-shell package in Ubuntu: Confirmed Status in mesa package in Ubuntu: Confirmed Status in gnome-shell package in Fedora: Unknown Bug description: Went to log into my fairly newly upgraded ubuntu artful system today but was presented with a new login instead of a login with all my applications running, similar to #1728474 ( https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1728474 ), only I didn't have to Ctrl-Alt-F1 to get a new login, I was presented with one when I came to log in in the morning. syslog gives a clue: Nov 5 02:17:43 eva org.gnome.Shell.desktop[29954]: intel_do_flush_locked failed: Bad address Nov 5 02:17:44 eva gnome-shell[29954]: Connection to xwayland lost Nov 5 02:17:44 eva kernel: [1339701.543472] traps: gnome-shell[29954] trap int3 ip:7fcceb716961 sp:7ffd8b486020 error:0 in libglib-2.0.so.0.5400.1[7fcceb6c6000+111000] This, followed by everything that was running failing to various degrees of cleanness. intel-microcode: Installed: 3.20170707.1 Candidate: 3.20170707.1 Version table: *** 3.20170707.1 500 500 https://gpl.savoirfairelinux.net/pub/mirrors/ubuntu artful/restricted amd64 Packages 500 https://mirror.its.sfu.ca/mirror/ubuntu artful/restricted amd64 Packages 100 /var/lib/dpkg/status xserver-xorg-video-intel: Installed: 2:2.99.917+git20170309-0ubuntu1 Candidate: 2:2.99.917+git20170309-0ubuntu1 Version table: *** 2:2.99.917+git20170309-0ubuntu1 500 500 https://gpl.savoirfairelinux.net/pub/mirrors/ubuntu artful/main amd64 Packages 500 https://mirror.its.sfu.ca/mirror/ubuntu artful/main amd64 Packages 100 /var/lib/dpkg/status libglib2.0-0: Installed: 2.54.1-1ubuntu1 Candidate: 2.54.1-1ubuntu1 Version table: *** 2.54.1-1ubuntu1 500 500 https://gpl.savoirfairelinux.net/pub/mirrors/ubuntu artful/main amd64 Packages 500 https://mirror.its.sfu.ca/mirror/ubuntu artful/main amd64 Packages 100 /var/lib/dpkg/status ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: gnome-shell 3.26.1-0ubuntu5 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic x86_64 ApportVersion: 2.20.7-0ubuntu3.1 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Sun Nov 5 07:27:04 2017 DisplayManager: gdm3 GsettingsChanges: b'org.gnome.shell' b'favorite-apps' b"['org.gnome.Nautilus.desktop', 'libreoffice-calc.desktop', 'gnome-control-center.desktop', 'org.gnome.Terminal.desktop', 'userapp-New Moon-YU8MZY.desktop', 'onioncircuits.desktop', 'org.gnome.Screenshot.desktop', 'emacs25.desktop', 'ricochet-im.desktop', 'gpa.desktop', 'org.gnome.Cheese.desktop']" b'org.gnome.desktop.interface' b'cursor-blink-time' b'1264' b'org.gnome.desktop.interface' b'gtk-im-module' b"'gtk-im-context-simple'" InstallationDate: Installed on 2017-04-18 (200 days ago) InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) JournalErrors: Error: command ['journalctl', '-b', '--priority=warning', '--lines=1000'] failed with exit code 1: Hint: You are currently not seeing messages from other users and the system. Users in the 'systemd-journal' group can see all messages. Pass -q to turn off this notice. No journal files were opened due to insufficient permissions. SourcePackage: gnome-shell UpgradeStatus: Upgraded to artful on 2017-10-19 (16 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1730184/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp