gnome-shell crashed with SIGABRT in g_assertion_message()

[Anders Kaseorg]

gnome-shell crashed with SIGABRT in g_assertion_message()

ProblemType: Crash
DistroRelease: Ubuntu 15.04
Package: gnome-shell 3.12.2-1ubuntu8
Uname: Linux 3.18.1-031801-generic x86_64
NonfreeKernelModules: openafs
ApportVersion: 2.15.1-0ubuntu1
Architecture: amd64
CrashCounter: 1
CurrentDesktop: GNOME
Date: Sun Dec 28 18:06:46 2014
DisplayManager: gdm
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/gnome-shell
ExecutableTimestamp: 1414680433
InstallationDate: Installed on 2014-08-22 (128 days ago)
InstallationMedia: Ubuntu-GNOME 14.10 "Utopic Unicorn" - Alpha amd64 (20140730)
ProcCmdline: /usr/bin/gnome-shell
ProcCwd: /home/anders
Signal: 6
SourcePackage: gnome-shell
StacktraceTop:
 g_assertion_message () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_assertion_message_expr () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 ?? () from /usr/lib/libmutter.so.0
 ?? () from /usr/lib/libmutter.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
Title: gnome-shell crashed with SIGABRT in g_assertion_message()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm bumblebee cdrom dip libvirtd lpadmin plugdev sambashare sbuild sudo wireshark

[Apport retracing service (apport)]

StacktraceTop:
 g_assertion_message (domain=domain@entry=0x7fdc5cbe6d21 "mutter", file=file@entry=0x7fdc5cbe03c7 "core/display.c", line=line@entry=2669, func=func@entry=0x7fdc5cbe310a <__FUNCTION__.77087> "event_callback", message=message@entry=0x67dc3d0 "code should not be reached") at /build/buildd/glib2.0-2.43.2/./glib/gtestutils.c:2291
 g_assertion_message_expr (domain=0x7fdc5cbe6d21 "mutter", file=0x7fdc5cbe03c7 "core/display.c", line=2669, func=0x7fdc5cbe310a <__FUNCTION__.77087> "event_callback", expr=<optimized out>) at /build/buildd/glib2.0-2.43.2/./glib/gtestutils.c:2306
 event_callback (event=0x7fff0d413870, data=0x3cb2c30) at core/display.c:2669
 filter_func (xevent=0x7fff0d413870, event=<optimized out>, data=<optimized out>) at ui/ui.c:261
 gdk_event_apply_filters (xevent=xevent@entry=0x7fff0d413870, event=event@entry=0x52262f0, window=window@entry=0x0) at /build/buildd/gtk+3.0-3.14.6/./gdk/x11/gdkeventsource.c:81

[Anders Kaseorg (andersk)]

The assertion being triggered here is in mutter-3.12.2/src/core/display.c:

      switch (input_event->evtype)
        {
          …
        case XI_TouchUpdate:
        case XI_TouchEnd:
          /* Filter out non-pointer-emulating touches */
          if ((((XIDeviceEvent *) input_event)->flags & XITouchEmulatingPointer) == 0)
            break;

          /* Currently unhandled, if any grab_op is started through XI_TouchBegin,
           * the XIGrabDevice() evmask drops touch events, so only emulated
           * XI_Motions and XI_ButtonRelease will follow.
           */
          g_assert_not_reached ();
          break;
        }

[Daniel van Vugt (vanvugt)]

Thank you for reporting this bug to Ubuntu.
Ubuntu 15.04 (vivid) reached end-of-life on February 4, 2016.

See this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test.

[Launchpad Janitor (janitor)]

[Expired for gnome-shell (Ubuntu) because there has been no activity for 60 days.]

[Launchpad Janitor (janitor)]

[Expired for mutter (Ubuntu) because there has been no activity for 60 days.]