(gdb) bt full
#0  0x00002b36c8c925e6 in raise () from /lib/libc.so.6
No symbol table info available.
#1  0x00002b36c8c936e0 in abort () from /lib/libc.so.6
No symbol table info available.
#2  0x00002b36c8c8c29a in __assert_fail () from /lib/libc.so.6
No symbol table info available.
#3  0x00002aaaadfba921 in ?? () from /usr/lib/libasound.so.2
No symbol table info available.
#4  0x00002aaaadfad836 in snd_pcm_close () from /usr/lib/libasound.so.2
No symbol table info available.
#5  0x00002aaaade34cf3 in ?? () from /usr/lib64/gstreamer-0.10/libgstalsa.so
No symbol table info available.
#6  0x00002aaaad40e47c in ?? () from /usr/lib/libgstaudio-0.10.so.0
No symbol table info available.
#7  0x00002aaaad418b2a in gst_ring_buffer_close_device ()
   from /usr/lib/libgstaudio-0.10.so.0
No symbol table info available.
#8  0x00002aaaad413ac2 in ?? () from /usr/lib/libgstaudio-0.10.so.0
No symbol table info available.
#9  0x00002b36c65e163a in gst_element_change_state ()
   from /usr/lib/libgstreamer-0.10.so.0
No symbol table info available.
#10 0x00002b36c65e1a4d in ?? () from /usr/lib/libgstreamer-0.10.so.0
---Type <return> to continue, or q <return> to quit---
No symbol table info available.
#11 0x00002b36c65d6ad5 in ?? () from /usr/lib/libgstreamer-0.10.so.0
No symbol table info available.
#12 0x00002aaaadd280d9 in ?? ()
   from /usr/lib64/gstreamer-0.10/libgstautodetect.so
No symbol table info available.
#13 0x00002b36c65e163a in gst_element_change_state ()
   from /usr/lib/libgstreamer-0.10.so.0
No symbol table info available.
#14 0x00002b36c65e1a4d in ?? () from /usr/lib/libgstreamer-0.10.so.0
No symbol table info available.
#15 0x00002b36c65d6ad5 in ?? () from /usr/lib/libgstreamer-0.10.so.0
No symbol table info available.
#16 0x00002b36c65e163a in gst_element_change_state ()
   from /usr/lib/libgstreamer-0.10.so.0
No symbol table info available.
#17 0x00002b36c65e1a4d in ?? () from /usr/lib/libgstreamer-0.10.so.0
No symbol table info available.
#18 0x00002b36c65d6ad5 in ?? () from /usr/lib/libgstreamer-0.10.so.0
No symbol table info available.
#19 0x00002aaaac72cacf in ?? ()
   from /usr/lib64/gstreamer-0.10/libgstgconfelements.so
No symbol table info available.
---Type <return> to continue, or q <return> to quit---
#20 0x00002aaaac72a55a in ?? ()
   from /usr/lib64/gstreamer-0.10/libgstgconfelements.so
No symbol table info available.
#21 0x00002b36c65e163a in gst_element_change_state ()
   from /usr/lib/libgstreamer-0.10.so.0
No symbol table info available.
#22 0x00002b36c65e1a4d in ?? () from /usr/lib/libgstreamer-0.10.so.0
No symbol table info available.
#23 0x00002b36c65d6ad5 in ?? () from /usr/lib/libgstreamer-0.10.so.0
No symbol table info available.
#24 0x00002b36c65e163a in gst_element_change_state ()
   from /usr/lib/libgstreamer-0.10.so.0
No symbol table info available.
#25 0x00002b36c65e1a4d in ?? () from /usr/lib/libgstreamer-0.10.so.0
No symbol table info available.
#26 0x00002aaaacd74ad4 in ?? () from /usr/lib64/gstreamer-0.10/libgstplaybin.so
No symbol table info available.
#27 0x00002aaaacd773a6 in ?? () from /usr/lib64/gstreamer-0.10/libgstplaybin.so
No symbol table info available.
#28 0x00002b36c65e163a in gst_element_change_state ()
   from /usr/lib/libgstreamer-0.10.so.0
No symbol table info available.
#29 0x00002b36c65e1a4d in ?? () from /usr/lib/libgstreamer-0.10.so.0
---Type <return> to continue, or q <return> to quit---
No symbol table info available.
#30 0x0000000000485e44 in ?? ()
No symbol table info available.
#31 0x00002b36c65d9453 in ?? () from /usr/lib/libgstreamer-0.10.so.0
No symbol table info available.
#32 0x00002b36c85d9f3a in g_main_context_dispatch ()
   from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#33 0x00002b36c85dca87 in ?? () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#34 0x00002b36c85dcddc in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#35 0x00002b36c76153b0 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
No symbol table info available.
#36 0x000000000046d31f in main ()
No symbol table info available.