gnome-shell crashed with SIGSEGV in _gdk_window_has_impl() from gdk_x11_window_get_xid() from gtk_im_context_xim_filter_keypress()

[Anders Kaseorg]

https://errors.ubuntu.com/problem/15cea21766411dfb0695dd32e40d9bfc23d82496

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gnome-shell crashed with SIGSEGV in gdk_x11_window_get_xid()

ProblemType: Crash
DistroRelease: Ubuntu 16.04
Package: gnome-shell 3.18.3-3ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-6.21-generic 4.4.1
Uname: Linux 4.4.0-6-generic x86_64
NonfreeKernelModules: openafs
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
CurrentDesktop: GNOME
Date: Sat Feb 20 23:14:14 2016
DisplayManager:

EcryptfsInUse: Yes
ExecutablePath: /usr/bin/gnome-shell
InstallationDate: Installed on 2016-02-19 (1 days ago)
InstallationMedia: Ubuntu-GNOME 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160218)
ProcCmdline: /usr/bin/gnome-shell
SegvAnalysis:
 Segfault happened at: 0x7ffaec3c76b2: cmp %rdi,0xe8(%rdi)
 PC (0x7ffaec3c76b2) ok
 source "%rdi" ok
 destination "0xe8(%rdi)" (0x000000e8) not located in a known VMA region (needed writable region)!
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: gnome-shell
StacktraceTop:
 ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
 gdk_x11_window_get_xid () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/gtk-3.0/3.0.0/immodules/im-xim.so
 ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
 ?? () from /usr/lib/gnome-shell/libgnome-shell.so
Title: gnome-shell crashed with SIGSEGV in gdk_x11_window_get_xid()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm bumblebee cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 _gdk_window_has_impl (window=window@entry=0x0) at /build/gtk+3.0-hryEEv/gtk+3.0-3.18.7/./gdk/gdkwindow.c:626
 gdk_x11_window_get_xid (window=0x0) at /build/gtk+3.0-hryEEv/gtk+3.0-3.18.7/./gdk/x11/gdkwindow-x11.c:5527
 gtk_im_context_xim_filter_keypress (context=0x2b38260, event=0x32d4120) at /build/gtk+3.0-hryEEv/gtk+3.0-3.18.7/./modules/input/gtkimcontextxim.c:673
 gtk_im_multicontext_filter_keypress (context=0x7ffacc0b4870, event=0x32d4120) at /build/gtk+3.0-hryEEv/gtk+3.0-3.18.7/./gtk/gtkimmulticontext.c:359
 st_im_text_captured_event () from /tmp/apport_sandbox_IwvrJ3/usr/lib/gnome-shell/libgnome-shell.so

[Launchpad Janitor (janitor)]

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

[Daniel van Vugt (vanvugt)]

This looks similar, but different, to bug 1743442.

[Daniel van Vugt (vanvugt)]

Also tracking in:
https://errors.ubuntu.com/problem/15cea21766411dfb0695dd32e40d9bfc23d82496

[Daniel van Vugt (vanvugt)]

^^^
That shows this bug stopped happening after 16.04 so if anyone would like to get a fix you will need to install Ubuntu 17.10 (or 18.04).