*** This bug is a duplicate of bug 1724439 *** https://bugs.launchpad.net/bugs/1724439
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. ** Attachment removed: "CoreDump.gz" https://bugs.launchpad.net/bugs/1760969/+attachment/5100264/+files/CoreDump.gz ** Attachment removed: "Disassembly.txt" https://bugs.launchpad.net/bugs/1760969/+attachment/5100266/+files/Disassembly.txt ** Attachment removed: "ProcMaps.txt" https://bugs.launchpad.net/bugs/1760969/+attachment/5100269/+files/ProcMaps.txt ** Attachment removed: "ProcStatus.txt" https://bugs.launchpad.net/bugs/1760969/+attachment/5100270/+files/ProcStatus.txt ** Attachment removed: "Registers.txt" https://bugs.launchpad.net/bugs/1760969/+attachment/5100271/+files/Registers.txt ** Attachment removed: "Stacktrace.txt" https://bugs.launchpad.net/bugs/1760969/+attachment/5100272/+files/Stacktrace.txt ** Attachment removed: "ThreadStacktrace.txt" https://bugs.launchpad.net/bugs/1760969/+attachment/5100273/+files/ThreadStacktrace.txt ** This bug has been marked a duplicate of bug 1724439 gnome-shell crashed with SIGSEGV in meta_window_get_monitor() from ffi_call_unix64() from ffi_call() from gjs_invoke_c_function() from function_call() ** Information type changed from Private to Public ** Tags removed: need-amd64-retrace -- 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/1760969 Title: gnome-shell crashed with SIGSEGV in meta_window_get_monitor() Status in gnome-shell package in Ubuntu: New Bug description: this occurs on a system that has DisplayPort 1.2 daisy-chained monitors, that are connected via a DisplayPort 1.2 compliant KVM switch. Crashes usually occur at the moment the switch disconnects the monitor chain, or restores the monitor chain, at which time the KVM may be suddenly reporting unusual resolutions for the DP monitor(s). ProblemType: Crash DistroRelease: Ubuntu 17.10 Package: gnome-shell 3.26.2-0ubuntu0.1 ProcVersionSignature: Ubuntu 4.13.0-37.42-generic 4.13.13 Uname: Linux 4.13.0-37-generic x86_64 ApportVersion: 2.20.7-0ubuntu3.7 Architecture: amd64 CrashCounter: 1 CurrentDesktop: ubuntu:GNOME Date: Tue Apr 3 10:38:54 2018 DisplayManager: gdm3 ExecutablePath: /usr/bin/gnome-shell GsettingsChanges: b'org.gnome.shell' b'enabled-extensions' b"['harddisk...@bijidroid.gmail.com']" b'org.gnome.shell' b'favorite-apps' b"['org.gnome.Nautilus.desktop', 'org.gnome.Terminal.desktop', 'thunderbird.desktop', 'google-chrome.desktop']" b'org.gnome.desktop.interface' b'clock-show-seconds' b'true' b'org.gnome.desktop.interface' b'gtk-im-module' b"'gtk-im-context-simple'" b'org.gnome.desktop.interface' b'clock-show-date' b'true' InstallationDate: Installed on 2016-10-05 (545 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) ProcCmdline: /usr/bin/gnome-shell ProcEnviron: LANGUAGE=en_CA:en PATH=(custom, user) XDG_RUNTIME_DIR=<set> LANG=en_CA.UTF-8 SHELL=/bin/bash SegvAnalysis: Segfault happened at: 0x7fe9c42f72d4 <meta_window_get_monitor+4>: mov 0x18(%rax),%eax PC (0x7fe9c42f72d4) 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 () at /usr/lib/x86_64-linux-gnu/libmutter-1.so.0 ffi_call_unix64 () at /usr/lib/x86_64-linux-gnu/libffi.so.6 ffi_call () at /usr/lib/x86_64-linux-gnu/libffi.so.6 () at /usr/lib/libgjs.so.0 () at /usr/lib/libgjs.so.0 Title: gnome-shell crashed with SIGSEGV in meta_window_get_monitor() UpgradeStatus: Upgraded to artful on 2017-10-23 (162 days ago) UserGroups: adm cdrom dip docker lpadmin plugdev sambashare sudo wireshark To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1760969/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp