Bug 721060 – Pitivi crashes when creating a new project after loading a project

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Bug 721060 - Pitivi crashes when creating a new project after loading a project


Summary:	Pitivi crashes when creating a new project after loading a project


Status:	RESOLVED INCOMPLETE

Product:	GStreamer
Classification:	Platform
Component:	gst-editing-services
Version:	1.2.1
Hardware:	Other Linux

Importance:	Normal major
Target Milestone:	git master
Assigned To:	GStreamer Maintainers
QA Contact:	GStreamer Maintainers

URL:
Whiteboard:

Depends on:
Blocks:

Reported:	2013-12-25 23:42 UTC by Jean-François Fortin Tam
Modified:	2014-10-07 01:08 UTC

See Also:
GNOME target:	---
GNOME version:	---

Description Jean-François Fortin Tam 2013-12-25 23:42:24 UTC

Load an existing xges project, then create a new blank project.
Wait (it may take a lot longer in gdb), and eventually segfaults like this:

(gdb) bt full

+ Trace 232955

#0 check_iter_access
at gsequence.c line 186
#1 g_sequence_remove
at gsequence.c line 538
#2 stop_tracking_track_element
at ges-timeline.c line 958
#3 track_element_removed_cb
at ges-timeline.c line 2267
#4 g_cclosure_marshal_VOID__OBJECTv
at gmarshal.c line 1312
#5 _g_closure_invoke_va
at gclosure.c line 840
#6 g_signal_emit_valist
at gsignal.c line 3238
#7 g_signal_emit
at gsignal.c line 3386
#8 remove_object_internal
at ges-track.c line 355
#9 ges_track_remove_element
at ges-track.c line 903
#10 ffi_call_unix64
from /lib64/libffi.so.6
#11 ffi_call
from /lib64/libffi.so.6
#12 g_cclosure_marshal_generic
at gclosure.c line 1454
#13 g_closure_invoke
at gclosure.c line 777
#14 signal_emit_unlocked_R
at gsignal.c line 3586
#15 g_signal_emit_valist
at gsignal.c line 3330
#16 g_signal_emit
at gsignal.c line 3386
#17 ges_container_remove
at ges-container.c line 600
#18 layer_object_removed_cb
at ges-timeline.c line 2120
#19 ges_timeline_remove_layer
at ges-timeline.c line 2603
#20 ges_timeline_dispose
at ges-timeline.c line 325
#21 g_object_unref
at gobject.c line 3160
#22 g_object_remove_toggle_ref
at gobject.c line 3038
#23 pygobject_clear
at pygobject.c line 1188
#24 pygobject_dealloc
at pygobject.c line 1102
#25 subtype_dealloc
#26 dict_dealloc
at /usr/src/debug/Python-2.7.5/Objects/dictobject.c line 1019
#27 pygobject_clear
at pygobject.c line 1197
#28 delete_garbage
at /usr/src/debug/Python-2.7.5/Modules/gcmodule.c line 894
#29 collect
at /usr/src/debug/Python-2.7.5/Modules/gcmodule.c line 1058
#30 PyGC_Collect
at /usr/src/debug/Python-2.7.5/Modules/gcmodule.c line 1514
#31 Py_Finalize
at /usr/src/debug/Python-2.7.5/Python/pythonrun.c line 444
#32 Py_Exit
at /usr/src/debug/Python-2.7.5/Python/pythonrun.c line 1780
#33 handle_system_exit
at /usr/src/debug/Python-2.7.5/Python/pythonrun.c line 1154
#34 handle_system_exit
at /usr/src/debug/Python-2.7.5/Python/pythonrun.c line 1176
#35 PyErr_PrintEx
at /usr/src/debug/Python-2.7.5/Python/pythonrun.c line 1164
#36 PyErr_Print
at /usr/src/debug/Python-2.7.5/Python/pythonrun.c line 1067
#37 PyRun_SimpleFileExFlags
at /usr/src/debug/Python-2.7.5/Python/pythonrun.c line 955
#38 PyRun_AnyFileExFlags
at /usr/src/debug/Python-2.7.5/Python/pythonrun.c line 755
#39 Py_Main
at /usr/src/debug/Python-2.7.5/Modules/main.c line 640
#40 __libc_start_main
at libc-start.c line 285
#41 _start

Comment 1 Thibault Saunier 2013-12-27 09:22:28 UTC

I could not reproduce, and I have already seen such issues with GSequence. Can you reproduce 100%? What GLib version are you using?

Comment 2 Jean-François Fortin Tam 2013-12-27 16:38:19 UTC

For me, it happens with more complex projects such as my 0.91 motivational video project (which is 1 minute long)... and this morning when trying to reproduce the issue, I did not get the segfault directly on creating a new project after having loaded that project; I got the segfault by trying to exit the app after doing all that!

This time the trace is:

(gdb) bt full

+ Trace 232962

#0 node_get_last
at gsequence.c line 1606
#1 get_sequence
at gsequence.c line 180
#2 check_iter_access
at gsequence.c line 186
#3 g_sequence_remove
at gsequence.c line 538
#4 stop_tracking_track_element
at ges-timeline.c line 958
#5 track_element_removed_cb
at ges-timeline.c line 2267
#6 g_cclosure_marshal_VOID__OBJECTv
at gmarshal.c line 1312
#7 _g_closure_invoke_va
at gclosure.c line 840
#8 g_signal_emit_valist
at gsignal.c line 3238
#9 g_signal_emit
at gsignal.c line 3386
#10 remove_object_internal
at ges-track.c line 355
#11 ges_track_remove_element
at ges-track.c line 903
#12 ffi_call_unix64
from /lib64/libffi.so.6
#13 ffi_call
from /lib64/libffi.so.6
#14 g_cclosure_marshal_generic
at gclosure.c line 1454
#15 g_closure_invoke
at gclosure.c line 777
#16 signal_emit_unlocked_R
at gsignal.c line 3586
#17 g_signal_emit_valist
at gsignal.c line 3330
#18 g_signal_emit
at gsignal.c line 3386
#19 ges_container_remove
at ges-container.c line 600
#20 layer_object_removed_cb
at ges-timeline.c line 2120
#21 ges_timeline_remove_layer
at ges-timeline.c line 2603
#22 ges_timeline_dispose
at ges-timeline.c line 325
#23 g_object_unref
at gobject.c line 3160
#24 g_object_remove_toggle_ref
at gobject.c line 3038
#25 pygobject_clear
at pygobject.c line 1188
#26 pygobject_dealloc
at pygobject.c line 1102
#27 subtype_dealloc
#28 dict_dealloc
at /usr/src/debug/Python-2.7.5/Objects/dictobject.c line 1019
#29 pygobject_clear
at pygobject.c line 1197
#30 delete_garbage
at /usr/src/debug/Python-2.7.5/Modules/gcmodule.c line 894
#31 collect
at /usr/src/debug/Python-2.7.5/Modules/gcmodule.c line 1058
#32 collect_generations
at /usr/src/debug/Python-2.7.5/Modules/gcmodule.c line 1124
#33 _PyObject_GC_Malloc
at /usr/src/debug/Python-2.7.5/Modules/gcmodule.c line 1585
#34 _PyObject_GC_New
at /usr/src/debug/Python-2.7.5/Modules/gcmodule.c line 1595
#35 PyGen_New
#36 PyEval_EvalCodeEx
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 3327
#37 fast_function
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 4194
#38 call_function
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 4119
#39 PyEval_EvalFrameEx
#40 PyEval_EvalCodeEx
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 3330
#41 fast_function
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 4194
#42 call_function
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 4119
#43 PyEval_EvalFrameEx
#44 PyEval_EvalCodeEx
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 3330
#45 function_call
#46 PyObject_Call
#47 ext_do_call
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 4411
#48 PyEval_EvalFrameEx
#49 PyEval_EvalCodeEx
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 3330
#50 function_call
#51 PyObject_Call
#52 ext_do_call
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 4411
#53 PyEval_EvalFrameEx
#54 PyEval_EvalCodeEx
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 3330
#55 fast_function
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 4194
#56 call_function
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 4119
#57 PyEval_EvalFrameEx
#58 fast_function
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 4184
#59 call_function
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 4119
#60 PyEval_EvalFrameEx
#61 PyEval_EvalCodeEx
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 3330
#62 function_call
#63 PyObject_Call
#64 instancemethod_call
#65 PyObject_Call
#66 do_call
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 4316
#67 call_function
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 4121
#68 PyEval_EvalFrameEx
#69 fast_function
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 4184
#70 call_function
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 4119
#71 PyEval_EvalFrameEx
#72 PyEval_EvalCodeEx
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 3330
#73 function_call
#74 PyObject_Call
#75 instancemethod_call
#76 PyObject_Call
#77 PyEval_CallObjectWithKeywords
#78 PyObject_CallObject
#79 pygi_signal_closure_marshal
at pygi-signal-closure.c line 149
#80 g_closure_invoke
at gclosure.c line 777
#81 signal_emit_unlocked_R
at gsignal.c line 3586
#82 g_signal_emit_valist
at gsignal.c line 3340
#83 g_signal_emit
at gsignal.c line 3386
#84 gtk_widget_event_internal
at gtkwidget.c line 7168
#85 gtk_widget_event
at gtkwidget.c line 6830
#86 gtk_main_do_event
at gtkmain.c line 1596
#87 send_delete_event
at gtkwindow.c line 1250
#88 gdk_threads_dispatch
at gdk.c line 804
#89 g_main_dispatch
at gmain.c line 3066
#90 g_main_context_dispatch
at gmain.c line 3642
#91 g_main_context_iterate
at gmain.c line 3713
#92 g_main_loop_run
at gmain.c line 3907
#93 ffi_call_unix64
from /lib64/libffi.so.6
#94 ffi_call
from /lib64/libffi.so.6
#95 g_callable_info_invoke
at girepository/gicallableinfo.c line 680
#96 g_function_info_invoke
at girepository/gifunctioninfo.c line 274
#97 _invoke_callable
at pygi-invoke.c line 64
#98 pygi_callable_info_invoke
at remote 0x1aa0c18>,), kwargs=<optimized out>, cache=<optimized out>, function_ptr=function_ptr@entry=0x0, user_data=user_data@entry=0x0) at pygi-invoke.c line 652
#99 _wrap_g_callable_info_invoke
at remote 0x1aa0c18>,), kwargs=kwargs@entry=0x0) at pygi-invoke.c line 675
#100 _callable_info_call
#101 PyObject_Call
#102 do_call
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 4316
#103 call_function
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 4121
#104 PyEval_EvalFrameEx
at remote 0x1aa0c18>), throwflag=throwflag@entry=0) at /usr/src/debug/Python-2.7.5/Python/ceval.c line 2740
#105 fast_function
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 4184
#106 call_function
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 4119
#107 PyEval_EvalFrameEx
#108 fast_function
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 4184
#109 call_function
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 4119
#110 PyEval_EvalFrameEx
#111 fast_function
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 4184
#112 call_function
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 4119
#113 PyEval_EvalFrameEx
#114 fast_function
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 4184
#115 call_function
at /usr/src/debug/Python-2.7.5/Python/ceval.c line 4119
#116 PyEval_EvalFrameEx
#117 PyEval_EvalCodeEx
#118 PyEval_EvalCode
#119 run_mod
#120 PyRun_FileExFlags
#121 PyRun_SimpleFileExFlags
at /usr/src/debug/Python-2.7.5/Python/pythonrun.c line 951
#122 PyRun_AnyFileExFlags
at /usr/src/debug/Python-2.7.5/Python/pythonrun.c line 755
#123 Py_Main
at /usr/src/debug/Python-2.7.5/Modules/main.c line 640
#124 __libc_start_main
at libc-start.c line 285
#125 _start

Comment 3 Jean-François Fortin Tam 2013-12-27 16:45:11 UTC

And the version of glib2 provided by Fedora 20 is 2.38.2.

Comment 4 Jean-François Fortin Tam 2013-12-27 17:00:12 UTC

And yet another segfault, again on "load a project, create a new project, then try quitting the app" like the previous one, but the trace seems different again...


(gdb) bt full

+ Trace 232963

#0 __GI_raise
at ../nptl/sysdeps/unix/sysv/linux/raise.c line 56
#1 __GI_abort
at abort.c line 89
#2 _g_log_abort
at gmessages.c line 255
#3 g_assertion_message
#4 g_assertion_message_expr
at gtestutils.c line 2293
#5 node_rotate
at gsequence.c line 1837
#6 rotate_down
at gsequence.c line 1920
#7 node_unlink
at gsequence.c line 1982
#8 g_sequence_remove
at gsequence.c line 542
#9 stop_tracking_track_element
at ges-timeline.c line 952
#10 track_element_removed_cb
at ges-timeline.c line 2261
#11 g_cclosure_marshal_VOID__OBJECTv
at gmarshal.c line 1312
#12 _g_closure_invoke_va
at gclosure.c line 840
#13 g_signal_emit_valist
at gsignal.c line 3238
#14 g_signal_emit
at gsignal.c line 3386
#15 remove_object_internal
at ges-track.c line 355
#16 ges_track_remove_element
at ges-track.c line 899
#17 ffi_call_unix64
from /lib64/libffi.so.6
#18 ffi_call
from /lib64/libffi.so.6
#19 g_cclosure_marshal_generic
at gclosure.c line 1454
#20 g_closure_invoke
at gclosure.c line 777
#21 signal_emit_unlocked_R
at gsignal.c line 3586
#22 g_signal_emit_valist
at gsignal.c line 3330
#23 g_signal_emit
at gsignal.c line 3386
#24 ges_container_remove
at ges-container.c line 600
#25 layer_object_removed_cb
at ges-timeline.c line 2114
#26 ges_timeline_remove_layer
at ges-timeline.c line 2597
#27 ges_timeline_dispose
at ges-timeline.c line 325
#28 g_object_unref
at gobject.c line 3160
#29 g_object_remove_toggle_ref
at gobject.c line 3038
#30 pygobject_clear
at pygobject.c line 1188
#31 pygobject_dealloc
at pygobject.c line 1102
#32 subtype_dealloc
#33 dict_dealloc
at /usr/src/debug/Python-2.7.5/Objects/dictobject.c line 1019
#34 pygobject_clear
at pygobject.c line 1197
#35 delete_garbage
at /usr/src/debug/Python-2.7.5/Modules/gcmodule.c line 894
#36 collect
at /usr/src/debug/Python-2.7.5/Modules/gcmodule.c line 1058
#37 PyGC_Collect
at /usr/src/debug/Python-2.7.5/Modules/gcmodule.c line 1514
#38 Py_Finalize
at /usr/src/debug/Python-2.7.5/Python/pythonrun.c line 444
#39 Py_Exit
at /usr/src/debug/Python-2.7.5/Python/pythonrun.c line 1780
#40 handle_system_exit
at /usr/src/debug/Python-2.7.5/Python/pythonrun.c line 1154
#41 handle_system_exit
at /usr/src/debug/Python-2.7.5/Python/pythonrun.c line 1176
#42 PyErr_PrintEx
at /usr/src/debug/Python-2.7.5/Python/pythonrun.c line 1164
#43 PyErr_Print
at /usr/src/debug/Python-2.7.5/Python/pythonrun.c line 1067
#44 PyRun_SimpleFileExFlags
at /usr/src/debug/Python-2.7.5/Python/pythonrun.c line 955
#45 PyRun_AnyFileExFlags
at /usr/src/debug/Python-2.7.5/Python/pythonrun.c line 755
#46 Py_Main
at /usr/src/debug/Python-2.7.5/Modules/main.c line 640
#47 __libc_start_main
at libc-start.c line 285
#48 _start

Comment 5 Luis de Bethencourt 2014-10-06 15:34:58 UTC

This bug hasn't had activity in a while, and being a severity:major issue, I am just wondering. Does it still happen?

Comment 6 Jean-François Fortin Tam 2014-10-07 01:08:29 UTC

(un)fortunately I can't reproduce this on "git master of everything" today.
 ...NEXT TIME, MR. FOX!