I can reproduce the same problem in totem-gstreamer (although I ran the gauntlet of bug #527572 when trying to do so) although it might not be quite as easy. I used an MP3 file that was over half an hour long. I also managed to get totem-gstreamer to hang (and stop repainting) just after seeking to the end. When attaching to it with gdb the backtrace looked somewhat recursive: #0 0xb7f92410 in __kernel_vsyscall () #1 0xb70f1589 in __lll_lock_wait () from /lib/tls/i686/cmov/libpthread.so.0 #2 0xb70ecba6 in _L_lock_95 () from /lib/tls/i686/cmov/libpthread.so.0 #3 0xb70ec58a in pthread_mutex_lock () from /lib/tls/i686/cmov/libpthread.so.0 #4 0xb730b580 in g_static_rec_mutex_lock () from /usr/lib/libglib-2.0.so.0 #5 0xb7c04a91 in gst_pad_send_event () from /usr/lib/libgstreamer-0.10.so.0 #6 0xb7c05086 in gst_pad_push_event () from /usr/lib/libgstreamer-0.10.so.0 #7 0xb5624551 in ?? () from /usr/lib/gstreamer-0.10/libgstcoreelements.so #8 0xb7c04956 in gst_pad_send_event () from /usr/lib/libgstreamer-0.10.so.0 #9 0xb7c05086 in gst_pad_push_event () from /usr/lib/libgstreamer-0.10.so.0 #10 0xb565a322 in gst_selector_pad_event (pad=0x830b7c8, event=0x8699ef0) at gststreamselector.c:313 #11 0xb7c04956 in gst_pad_send_event () from /usr/lib/libgstreamer-0.10.so.0 #12 0xb7c05086 in gst_pad_push_event () from /usr/lib/libgstreamer-0.10.so.0 #13 0xb7bf9d5a in ?? () from /usr/lib/libgstreamer-0.10.so.0 #14 0xb7c04956 in gst_pad_send_event () from /usr/lib/libgstreamer-0.10.so.0 #15 0xb7c05086 in gst_pad_push_event () from /usr/lib/libgstreamer-0.10.so.0 #16 0xb7c062d9 in gst_pad_event_default () from /usr/lib/libgstreamer-0.10.so.0 #17 0xb45111bd in gst_mad_sink_event (pad=0x8626f10, event=0x8699ef0) at gstmad.c:991 #18 0xb7c04956 in gst_pad_send_event () from /usr/lib/libgstreamer-0.10.so.0 #19 0xb7c05086 in gst_pad_push_event () from /usr/lib/libgstreamer-0.10.so.0 #20 0xb452369a in gst_mp3parse_sink_event (pad=0x86cf4c8, event=0x8699ef0) at gstmpegaudioparse.c:494 #21 0xb7c04956 in gst_pad_send_event () from /usr/lib/libgstreamer-0.10.so.0 #22 0xb7c05086 in gst_pad_push_event () from /usr/lib/libgstreamer-0.10.so.0 #23 0xb7c062d9 in gst_pad_event_default () from /usr/lib/libgstreamer-0.10.so.0 #24 0xb5629341 in ?? () from /usr/lib/gstreamer-0.10/libgstcoreelements.so #25 0xb7c04956 in gst_pad_send_event () from /usr/lib/libgstreamer-0.10.so.0 #26 0xb7c05086 in gst_pad_push_event () from /usr/lib/libgstreamer-0.10.so.0 #27 0xb7bf9d5a in ?? () from /usr/lib/libgstreamer-0.10.so.0 #28 0xb7c04956 in gst_pad_send_event () from /usr/lib/libgstreamer-0.10.so.0 #29 0xb7c05086 in gst_pad_push_event () from /usr/lib/libgstreamer-0.10.so.0 #30 0xb7c783b7 in ?? () from /usr/lib/libgstbase-0.10.so.0 #31 0xb7c77284 in ?? () from /usr/lib/libgstbase-0.10.so.0 #32 0xb7c04956 in gst_pad_send_event () from /usr/lib/libgstreamer-0.10.so.0 #33 0xb7c05086 in gst_pad_push_event () from /usr/lib/libgstreamer-0.10.so.0 #34 0xb7bf9d5a in ?? () from /usr/lib/libgstreamer-0.10.so.0 #35 0xb7c04956 in gst_pad_send_event () from /usr/lib/libgstreamer-0.10.so.0 #36 0xb7c05086 in gst_pad_push_event () from /usr/lib/libgstreamer-0.10.so.0 #37 0xb7c06373 in gst_pad_event_default () from /usr/lib/libgstreamer-0.10.so.0 #38 0xb5628d12 in ?? () from /usr/lib/gstreamer-0.10/libgstcoreelements.so #39 0xb7c04956 in gst_pad_send_event () from /usr/lib/libgstreamer-0.10.so.0 #40 0xb7c05086 in gst_pad_push_event () from /usr/lib/libgstreamer-0.10.so.0 #41 0xb45243f4 in mp3parse_src_event (pad=0x86cf048, event=0x81b2850) at gstmpegaudioparse.c:1675 #42 0xb7c04956 in gst_pad_send_event () from /usr/lib/libgstreamer-0.10.so.0 #43 0xb7c05086 in gst_pad_push_event () from /usr/lib/libgstreamer-0.10.so.0 #44 0xb7c06373 in gst_pad_event_default () from /usr/lib/libgstreamer-0.10.so.0 #45 0xb4510832 in gst_mad_src_event (pad=0x8677040, event=0x81b2850) at gstmad.c:792 #46 0xb7c04956 in gst_pad_send_event () from /usr/lib/libgstreamer-0.10.so.0 #47 0xb7c05086 in gst_pad_push_event () from /usr/lib/libgstreamer-0.10.so.0 #48 0xb7bf9d5a in ?? () from /usr/lib/libgstreamer-0.10.so.0 #49 0xb7c04956 in gst_pad_send_event () from /usr/lib/libgstreamer-0.10.so.0 #50 0xb7c05086 in gst_pad_push_event () from /usr/lib/libgstreamer-0.10.so.0 #51 0xb7c06373 in gst_pad_event_default () from /usr/lib/libgstreamer-0.10.so.0 #52 0xb7c04956 in gst_pad_send_event () from /usr/lib/libgstreamer-0.10.so.0 #53 0xb7c05086 in gst_pad_push_event () from /usr/lib/libgstreamer-0.10.so.0 #54 0xb56220b3 in ?? () from /usr/lib/gstreamer-0.10/libgstcoreelements.so #55 0xb7c04956 in gst_pad_send_event () from /usr/lib/libgstreamer-0.10.so.0 #56 0xb7c05086 in gst_pad_push_event () from /usr/lib/libgstreamer-0.10.so.0 #57 0xb7bf9d5a in ?? () from /usr/lib/libgstreamer-0.10.so.0 #58 0xb7c04956 in gst_pad_send_event () from /usr/lib/libgstreamer-0.10.so.0 #59 0xb7c05086 in gst_pad_push_event () from /usr/lib/libgstreamer-0.10.so.0 #60 0xb7c7fc43 in ?? () from /usr/lib/libgstbase-0.10.so.0 #61 0xb7c7c1e7 in ?? () from /usr/lib/libgstbase-0.10.so.0 #62 0xb7c04956 in gst_pad_send_event () from /usr/lib/libgstreamer-0.10.so.0 #63 0xb7c05086 in gst_pad_push_event () from /usr/lib/libgstreamer-0.10.so.0 #64 0xb7c7fc43 in ?? () from /usr/lib/libgstbase-0.10.so.0 #65 0xb7c7c1e7 in ?? () from /usr/lib/libgstbase-0.10.so.0 #66 0xb7c04956 in gst_pad_send_event () from /usr/lib/libgstreamer-0.10.so.0 #67 0xb7c05086 in gst_pad_push_event () from /usr/lib/libgstreamer-0.10.so.0 #68 0xb7c7fc43 in ?? () from /usr/lib/libgstbase-0.10.so.0 #69 0xb7c7c1e7 in ?? () from /usr/lib/libgstbase-0.10.so.0 #70 0xb7c04956 in gst_pad_send_event () from /usr/lib/libgstreamer-0.10.so.0 #71 0xb7c05086 in gst_pad_push_event () from /usr/lib/libgstreamer-0.10.so.0 #72 0xb7bf9d5a in ?? () from /usr/lib/libgstreamer-0.10.so.0 #73 0xb7c04956 in gst_pad_send_event () from /usr/lib/libgstreamer-0.10.so.0 #74 0xb7c05086 in gst_pad_push_event () from /usr/lib/libgstreamer-0.10.so.0 #75 0xb7c7fc43 in ?? () from /usr/lib/libgstbase-0.10.so.0 #76 0xb7c7c1e7 in ?? () from /usr/lib/libgstbase-0.10.so.0 #77 0xb7c04956 in gst_pad_send_event () from /usr/lib/libgstreamer-0.10.so.0 #78 0xb7c05086 in gst_pad_push_event () from /usr/lib/libgstreamer-0.10.so.0 #79 0xb7bf9d5a in ?? () from /usr/lib/libgstreamer-0.10.so.0 #80 0xb7c04956 in gst_pad_send_event () from /usr/lib/libgstreamer-0.10.so.0 #81 0xb7c05086 in gst_pad_push_event () from /usr/lib/libgstreamer-0.10.so.0 #82 0xb7bf9d5a in ?? () from /usr/lib/libgstreamer-0.10.so.0 #83 0xb7c04956 in gst_pad_send_event () from /usr/lib/libgstreamer-0.10.so.0 #84 0xb7c05086 in gst_pad_push_event () from /usr/lib/libgstreamer-0.10.so.0 #85 0xb7bf9d5a in ?? () from /usr/lib/libgstreamer-0.10.so.0 #86 0xb7c04956 in gst_pad_send_event () from /usr/lib/libgstreamer-0.10.so.0 #87 0xb7c05086 in gst_pad_push_event () from /usr/lib/libgstreamer-0.10.so.0 #88 0xb7c73144 in ?? () from /usr/lib/libgstbase-0.10.so.0 #89 0xb7bf0e88 in gst_element_send_event () from /usr/lib/libgstreamer-0.10.so.0 #90 0xb7be02e2 in ?? () from /usr/lib/libgstreamer-0.10.so.0 #91 0xb7bf0e88 in gst_element_send_event () from /usr/lib/libgstreamer-0.10.so.0 #92 0xb7be02e2 in ?? () from /usr/lib/libgstreamer-0.10.so.0 #93 0xb7bf0e88 in gst_element_send_event () from /usr/lib/libgstreamer-0.10.so.0 #94 0xb7be02e2 in ?? () from /usr/lib/libgstreamer-0.10.so.0 #95 0xb7bf0e88 in gst_element_send_event () from /usr/lib/libgstreamer-0.10.so.0 #96 0xb7be02e2 in ?? () from /usr/lib/libgstreamer-0.10.so.0 #97 0xb7bf0e88 in gst_element_send_event () from /usr/lib/libgstreamer-0.10.so.0 #98 0xb7be02e2 in ?? () from /usr/lib/libgstreamer-0.10.so.0 #99 0xb7bf0e88 in gst_element_send_event () from /usr/lib/libgstreamer-0.10.so.0 ---Type to continue, or q to quit--- #100 0xb5646fa9 in gst_play_bin_send_event (element=0x839b038, event=0x81b2850) at gstplaybin.c:1668 #101 0xb7bf0e88 in gst_element_send_event () from /usr/lib/libgstreamer-0.10.so.0 #102 0xb7bf102c in gst_element_seek () from /usr/lib/libgstreamer-0.10.so.0 #103 0x0808522a in bacon_video_widget_seek_time () #104 0x0808557e in bacon_video_widget_seek () #105 0x0806338d in ?? () #106 0xb7377aff in g_cclosure_marshal_VOID__VOID () from /usr/lib/libgobject-2.0.so.0 #107 0xb736a759 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0 #108 0xb737ef8b in ?? () from /usr/lib/libgobject-2.0.so.0 #109 0xb7380c1f in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0 #110 0xb7380f69 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0 #111 0xb75cc2ba in gtk_adjustment_value_changed () from /usr/lib/libgtk-x11-2.0.so.0 #112 0xb76f67a0 in ?? () from /usr/lib/libgtk-x11-2.0.so.0 #113 0xb76b75ac in ?? () from /usr/lib/libgtk-x11-2.0.so.0 #114 0xb7369079 in ?? () from /usr/lib/libgobject-2.0.so.0 #115 0xb736a759 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0 #116 0xb737f11a in ?? () from /usr/lib/libgobject-2.0.so.0 #117 0xb7380947 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0 #118 0xb7380f69 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0 #119 0xb76f4b65 in ?? () from /usr/lib/libgtk-x11-2.0.so.0 #120 0xb76f6d8e in ?? () from /usr/lib/libgtk-x11-2.0.so.0 #121 0xb76b78d4 in ?? () from /usr/lib/libgtk-x11-2.0.so.0 #122 0xb7369079 in ?? () from /usr/lib/libgobject-2.0.so.0 #123 0xb736a759 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0 #124 0xb737f11a in ?? () from /usr/lib/libgobject-2.0.so.0 #125 0xb7380947 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0 #126 0xb7380f69 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0 #127 0xb77d6667 in ?? () from /usr/lib/libgtk-x11-2.0.so.0 #128 0xb76b0b21 in gtk_propagate_event () from /usr/lib/libgtk-x11-2.0.so.0 #129 0xb76b1d88 in gtk_main_do_event () from /usr/lib/libgtk-x11-2.0.so.0 #130 0xb752aa9a in ?? () from /usr/lib/libgdk-x11-2.0.so.0 #131 0xb72e2dd6 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0 #132 0xb72e6193 in ?? () from /usr/lib/libglib-2.0.so.0 #133 0xb72e6577 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0 #134 0xb76b2264 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0 #135 0x08065d39 in main () HTH.