[Bug 768668] New: atomicqueue: forever busy-waiting

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=768668

            Bug ID: 768668
           Summary: atomicqueue: forever busy-waiting
    Classification: Platform
           Product: GStreamer
           Version: 1.8.2
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gstreamer (core)
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: mparisdiaz at gmail.com
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

Created attachment 331210
  --> https://bugzilla.gnome.org/attachment.cgi?id=331210&action=edit
GDB back trace

Hello,
I have come across a forever busy-waiting in gst_atomic_queue_push, exactly in
[1].

In my study case, I have a program where 78 threads are forever busy waiting in
the same point.
You can see the back trace of one of these threads in the attached file. Others
have the same back trace.

Refs
[1]
https://github.com/Kurento/gstreamer/blob/2f41e7bc6a842044cb73bc0470601200575c378a/gst/gstatomicqueue.c#L387

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