[Bug 797106] New: deadlock in konsole + phonon

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=797106

            Bug ID: 797106
           Summary: deadlock in konsole + phonon
    Classification: Platform
           Product: GStreamer
           Version: 1.14.2
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: don't know
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: me at calebj.io
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

Created attachment 373575
  --> https://bugzilla.gnome.org/attachment.cgi?id=373575&action=edit
gdb session with thread apply all bt

Konsole stops responding when I attempt to close a tab where an application
other than the shell is still running. The prompt to close appears, but freezes
and I can't interact with it anymore. I have to kill konsole when this happens.
The traceback indicates that a deadlock is occurring in code related to an
alert sound playback for the exit confirmation.

The problem doesn't seem to appear in a new user profile, but renaming
~/.config to something else doesn't fix it. For both existing and new users, I
get the following in konsole's stdout just before the confirmation dialog shows
up: "WARNING: Disabling PulseAudio integration for lack of GLib event loop."

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