luis@strange:~/src/debian$ gdb gst-launch-1.0 19034
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Reading symbols from gst-launch-1.0...Reading symbols from /usr/lib/debug/.build-id/99/64ed8fb6ca6d63f7ee237d9c8dc128cdd188fa.debug...done.
done.
Attaching to program: /usr/bin/gst-launch-1.0, process 19034
Reading symbols from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0...Reading symbols from /usr/lib/debug/.build-id/ce/aecac2c1f37cd40f98bd77980f90545214a253.debug...done.
done.
Loaded symbols for /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
Reading symbols from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0...Reading symbols from /usr/lib/debug/.build-id/af/83b4fc08b05f9cd06d6911be0d6c1bd5c559c4.debug...done.
done.
Loaded symbols for /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
Reading symbols from /lib/x86_64-linux-gnu/libglib-2.0.so.0...Reading symbols from /usr/lib/debug/.build-id/99/e224b139c7c93c284901f42999cfe61378c39c.debug...done.
done.
Loaded symbols for /lib/x86_64-linux-gnu/libglib-2.0.so.0
Reading symbols from /lib/x86_64-linux-gnu/libpthread.so.0...(no debugging symbols found)...done.
[New LWP 19039]
[New LWP 19038]
[New LWP 19037]
[New LWP 19036]
[New LWP 19035]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Loaded symbols for /lib/x86_64-linux-gnu/libpthread.so.0
Reading symbols from /lib/x86_64-linux-gnu/libc.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib/x86_64-linux-gnu/libc.so.6
Reading symbols from /usr/lib/x86_64-linux-gnu/libgmodule-2.0.so.0...Reading symbols from /usr/lib/debug/.build-id/f8/f87d6a4cca5e112e0c45ada194cfed54f6a04b.debug...done.
done.
Loaded symbols for /usr/lib/x86_64-linux-gnu/libgmodule-2.0.so.0
Reading symbols from /lib/x86_64-linux-gnu/libm.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib/x86_64-linux-gnu/libm.so.6
Reading symbols from /lib/x86_64-linux-gnu/libdl.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib/x86_64-linux-gnu/libdl.so.2
Reading symbols from /usr/lib/x86_64-linux-gnu/libffi.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/x86_64-linux-gnu/libffi.so.6
Reading symbols from /lib/x86_64-linux-gnu/libpcre.so.3...(no debugging symbols found)...done.
Loaded symbols for /lib/x86_64-linux-gnu/libpcre.so.3
Reading symbols from /lib64/ld-linux-x86-64.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/ld-linux-x86-64.so.2
Reading symbols from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstplayback.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstplayback.so
Reading symbols from /usr/lib/x86_64-linux-gnu/libgstpbutils-1.0.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/x86_64-linux-gnu/libgstpbutils-1.0.so.0
Reading symbols from /usr/lib/x86_64-linux-gnu/libgstaudio-1.0.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/x86_64-linux-gnu/libgstaudio-1.0.so.0
Reading symbols from /usr/lib/x86_64-linux-gnu/libgstvideo-1.0.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/x86_64-linux-gnu/libgstvideo-1.0.so.0
Reading symbols from /usr/lib/x86_64-linux-gnu/libgsttag-1.0.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/x86_64-linux-gnu/libgsttag-1.0.so.0
Reading symbols from /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0...Reading symbols from /usr/lib/debug/.build-id/a1/99418d2d24e3273d4977f38732da3486185b78.debug...done.
done.
Loaded symbols for /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
Reading symbols from /usr/lib/x86_64-linux-gnu/liborc-0.4.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/x86_64-linux-gnu/liborc-0.4.so.0
Reading symbols from /lib/x86_64-linux-gnu/libz.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib/x86_64-linux-gnu/libz.so.1
Reading symbols from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcoreelements.so...Reading symbols from /usr/lib/debug/.build-id/78/520e9c086c927b4529783a9c141d1475078860.debug...done.
done.
Loaded symbols for /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcoreelements.so
Reading symbols from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgsttypefindfunctions.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgsttypefindfunctions.so
Reading symbols from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstavi.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstavi.so
Reading symbols from /usr/lib/x86_64-linux-gnu/libgstriff-1.0.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/x86_64-linux-gnu/libgstriff-1.0.so.0
Reading symbols from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstxvimagesink.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstxvimagesink.so
Reading symbols from /usr/lib/x86_64-linux-gnu/libX11.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/x86_64-linux-gnu/libX11.so.6
Reading symbols from /usr/lib/x86_64-linux-gnu/libXv.so.1...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/x86_64-linux-gnu/libXv.so.1
Reading symbols from /usr/lib/x86_64-linux-gnu/libXext.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/x86_64-linux-gnu/libXext.so.6
Reading symbols from /usr/lib/x86_64-linux-gnu/libxcb.so.1...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/x86_64-linux-gnu/libxcb.so.1
Reading symbols from /usr/lib/x86_64-linux-gnu/libXau.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/x86_64-linux-gnu/libXau.so.6
Reading symbols from /usr/lib/x86_64-linux-gnu/libXdmcp.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/x86_64-linux-gnu/libXdmcp.so.6
Reading symbols from /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstjpeg.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstjpeg.so
Reading symbols from /usr/lib/x86_64-linux-gnu/libjpeg.so.8...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/x86_64-linux-gnu/libjpeg.so.8
0x00007fb45dbf10ed in poll () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) bt
#0  0x00007fb45dbf10ed in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fb45e123154 in g_main_context_poll (priority=2147483647, n_fds=2, fds=0x1075fe0, timeout=-1, context=0x1078ee0)
    at /build/glib2.0-tWPgvS/glib2.0-2.40.0/./glib/gmain.c:4028
#2  g_main_context_iterate (context=0x1078ee0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>)
    at /build/glib2.0-tWPgvS/glib2.0-2.40.0/./glib/gmain.c:3729
#3  0x00007fb45e1234e2 in g_main_loop_run (loop=0x1075a50) at /build/glib2.0-tWPgvS/glib2.0-2.40.0/./glib/gmain.c:3928
#4  0x00007fb45e67373a in gst_bus_poll (bus=0x1045430, events=49, timeout=18446744073709551615) at gstbus.c:1091
#5  0x00000000004046e8 in event_loop (pipeline=0x105c150, blocking=blocking@entry=1, do_progress=do_progress@entry=1, 
    target_state=target_state@entry=GST_STATE_PAUSED) at gst-launch.c:512
#6  0x0000000000403726 in main (argc=3, argv=0x7fffff68adb8) at gst-launch.c:1049
