[Bug 797203] New: shmsrc: race condition when stopping

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=797203

            Bug ID: 797203
           Summary: shmsrc: race condition when stopping
    Classification: Platform
           Product: GStreamer
           Version: 1.14.x
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-plugins-bad
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: aconchillo at gmail.com
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

There seems to be a race condition when stopping a shmsrc element. It is
possible that "self->pipe" is set to NULL (calling gst_shm_src_stop_reading
when setting the pipeline to NULL) while gst_shm_src_create is still being used
in the streaming thread.

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