*** This bug is a duplicate of bug 1748450 ***
    https://bugs.launchpad.net/bugs/1748450

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 #1748450, 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.

** Attachment removed: "CoreDump.gz"
   
https://bugs.launchpad.net/bugs/1749743/+attachment/5055852/+files/CoreDump.gz

** Attachment removed: "Disassembly.txt"
   
https://bugs.launchpad.net/bugs/1749743/+attachment/5055854/+files/Disassembly.txt

** Attachment removed: "ProcMaps.txt"
   
https://bugs.launchpad.net/bugs/1749743/+attachment/5055859/+files/ProcMaps.txt

** Attachment removed: "ProcStatus.txt"
   
https://bugs.launchpad.net/bugs/1749743/+attachment/5055860/+files/ProcStatus.txt

** Attachment removed: "Registers.txt"
   
https://bugs.launchpad.net/bugs/1749743/+attachment/5055861/+files/Registers.txt

** Attachment removed: "Stacktrace.txt"
   
https://bugs.launchpad.net/bugs/1749743/+attachment/5055862/+files/Stacktrace.txt

** Attachment removed: "ThreadStacktrace.txt"
   
https://bugs.launchpad.net/bugs/1749743/+attachment/5055863/+files/ThreadStacktrace.txt

** This bug has been marked a duplicate of bug 1748450
   gnome-shell crashed with SIGTRAP in _g_log_abort() from 
g_log_default_handler() from default_log_handler(message="Connection to 
xwayland lost") from g_logv() from g_log() from <bug 1505409>

** Information type changed from Private to Public

** Tags removed: need-amd64-retrace

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https://bugs.launchpad.net/bugs/1749743

Title:
  gnome-shell crashed with signal 5 in g_malloc0()

Status in gnome-shell package in Ubuntu:
  New

Bug description:
  I can make my session crash when docking the laptop into a docking
  station. Reliably. Sometimes it crashes when undocking.  But only
  since a few days.

  Feb 15 17:15:21 unibox usbguard-daemon[1765]: [1518711321.403] (A) 
result=SUCCESS identity={ uid=0 pid=1765 } type=Device.Remove device='allow id 
046d:c52b serial "" name "USB Receiver" hash 
"DH2YgWl2OvHJrGcyjj6qXCNRiJUSthFxHLqRCtlssVA=" parent-hash 
"zC/l1hLcFOg5CzEKcyZMP/h1xmdZLnH5ssvafoV6pj0=" via-port "1-4.4.2" 
with-interface { 03:01:01 03:01:02 03:00:00 }'
  Feb 15 17:15:21 unibox usbguard-daemon[1765]: [1518711321.404] (A) 
result=SUCCESS identity={ uid=0 pid=1765 } type=Device.Remove device='allow id 
17ef:100f serial "Rev1.2" name "Lenovo ThinkPad Dock" hash 
"zC/l1hLcFOg5CzEKcyZMP/h1xmdZLnH5ssvafoV6pj0=" parent-hash 
"OkrTUwAUxn55t8+ezGtkhdgxjz9TIluGUS+bjFE+iC4=" via-port "1-4.4" with-interface 
{ 09:00:01 09:00:02 }'
  Feb 15 17:15:21 unibox usbguard-daemon[1765]: [1518711321.410] (A) 
result=SUCCESS identity={ uid=0 pid=1765 } type=Device.Remove device='allow id 
17ef:1010 serial "" name "Lenovo ThinkPad Dock   " hash 
"OkrTUwAUxn55t8+ezGtkhdgxjz9TIluGUS+bjFE+iC4=" parent-hash 
"jEP/6WzviqdJ5VSeTUY8PatCNBKeaREvo2OqdplND/o=" via-port "1-4" with-interface 
09:00:00'
  Feb 15 17:15:21 unibox kernel: e1000e: enp0s31f6 NIC Link is Down
  Feb 15 17:15:21 unibox gnome-shell[1446]: 
meta_monitor_manager_get_logical_monitor_from_number: assertion '(unsigned int) 
number < g_list_length (manager->logical_monitors)' failed
  Feb 15 17:15:21 unibox gnome-shell[1446]: 
meta_workspace_get_work_area_for_monitor: assertion 'logical_monitor != NULL' 
failed
  Feb 15 17:15:21 unibox gnome-shell[1446]: ../../../../glib/gmem.c:130: failed 
to allocate 18446744072098939136 bytes
  Feb 15 17:15:21 unibox org.gnome.Shell.desktop[1446]: == Stack trace for 
context 0x55bd4a82f000 ==
  Feb 15 17:15:21 unibox org.gnome.Shell.desktop[1446]: #0 0x55bd4a970c70 i   
resource:///org/gnome/shell/ui/panel.js:171 (0x7fd75c006f78 @ 46)
  Feb 15 17:15:21 unibox org.gnome.Shell.desktop[1446]: #1 0x7ffced7ca4a0 I   
resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7fd75c5c2c48 @ 71)
  Feb 15 17:15:21 unibox org.gnome.Shell.desktop[1446]: #2 0x55bd4a970ba8 i   
resource:///org/gnome/shell/ui/panel.js:318 (0x7fd75c009670 @ 624)
  Feb 15 17:15:21 unibox org.gnome.Shell.desktop[1446]: #3 0x7ffced7cb0a0 I   
resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7fd75c5c2c48 @ 71)
  Feb 15 17:15:21 unibox org.gnome.Shell.desktop[1446]: #4 0x55bd4a970b10 i   
resource:///org/gnome/shell/ui/panel.js:254 (0x7fd75c009450 @ 156)
  Feb 15 17:15:21 unibox org.gnome.Shell.desktop[1446]: #5 0x7ffced7cbcb0 I   
resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7fd75c5c2c48 @ 71)
  Feb 15 17:15:21 unibox org.gnome.Shell.desktop[1446]: #6 0x7ffced7cbd80 b   
self-hosted:917 (0x7fd75c5ee4d8 @ 394)
  Feb 15 17:15:21 unibox gnome-terminal-[2089]: Error reading events from 
display: Connection reset by peer
  Feb 15 17:15:21 unibox evolution-alarm[1898]: Error reading events from 
display: Connection reset by peer
  Feb 15 17:15:21 unibox org.gnome.Shell.desktop[1446]: (EE)
  Feb 15 17:15:21 unibox org.gnome.Shell.desktop[1446]: Fatal server error:
  Feb 15 17:15:21 unibox org.gnome.Shell.desktop[1446]: (EE) failed to read 
Wayland events: Connection reset by peer
  Feb 15 17:15:21 unibox org.gnome.Shell.desktop[1446]: (EE)
  Feb 15 17:15:21 unibox update-notifier[2367]: g_hash_table_destroy: assertion 
'hash_table != NULL' failed
  Feb 15 17:15:21 unibox update-notifier.desktop[2367]: Unable to init server: 
Could not connect: Connection refused
  Feb 15 17:15:21 unibox update-notifier.desktop[2367]: Failed to init the UI: 
Cannot open display:
  Feb 15 17:15:21 unibox systemd[1387]: gnome-terminal-server.service: Main 
process exited, code=exited, status=1/FAILURE
  Feb 15 17:15:21 unibox systemd[1387]: gnome-terminal-server.service: Unit 
entered failed state.
  Feb 15 17:15:21 unibox systemd[1387]: gnome-terminal-server.service: Failed 
with result 'exit-code'.
  Feb 15 17:15:21 unibox polkitd(authority=local)[991]: Unregistered 
Authentication Agent for unix-session:2 (system bus name :1.74, object path 
/org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_GB.UTF-8) 
(disconnected from bus)
  Feb 15 17:15:21 unibox gnome-session-binary[1411]: Unrecoverable failure in 
required component org.gnome.Shell.desktop
  Feb 15 17:15:21 unibox gnome-session-binary[1411]: WARNING: Application 
'org.gnome.Shell.desktop' killed by signal 5
  Feb 15 17:15:21 unibox gnome-session[1411]: gnome-session-binary[1411]: 
WARNING: Application 'org.gnome.Shell.desktop' killed by signal 5
  Feb 15 17:15:21 unibox gsd-rfkill[1690]: g_object_notify: object class 
'CcRfkillGlib' has no property named 'kernel-noinput'
  Feb 15 17:15:21 unibox usbguard-daemon[1765]: [1518711321.793] (A) 
result=SUCCESS identity={ uid=0 pid=1765 } type=Device.Remove device='allow id 
0451:8140 serial "" name "" hash "dVCymwEseQzOxQLvV2aMaQqCXF0z5xnHiHD5odaR/TM=" 
parent-hash "dVCymwEseQzOxQLvV2aMaQqCXF0z5xnHiHD5odaR/TM=" via-port "2-4.1.3.4" 
with-interface 09:00:00'

  ProblemType: Crash
  DistroRelease: Ubuntu 17.10
  Package: gnome-shell 3.26.2-0ubuntu0.1
  ProcVersionSignature: Ubuntu 4.13.0-35.39-generic 4.13.13
  Uname: Linux 4.13.0-35-generic x86_64
  ApportVersion: 2.20.7-0ubuntu3.7
  Architecture: amd64
  CrashCounter: 1
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Feb 15 17:06:51 2018
  DisplayManager: gdm3
  ExecutablePath: /usr/bin/gnome-shell
  InstallationDate: Installed on 2017-10-13 (125 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Beta amd64 (20171012)
  ProcCmdline: /usr/bin/gnome-shell
  Signal: 5
  SourcePackage: gnome-shell
  StacktraceTop:
   g_malloc0 () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
   () at /usr/lib/gnome-shell/libst-1.0.so
   _st_create_shadow_pipeline () at /usr/lib/gnome-shell/libst-1.0.so
   _st_create_shadow_pipeline_from_actor () at /usr/lib/gnome-shell/libst-1.0.so
   () at /usr/lib/gnome-shell/libst-1.0.so
  Title: gnome-shell crashed with signal 5 in g_malloc0()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip libvirt lpadmin plugdev sambashare sudo

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