[Kdenlive-devel] a few backtraces

Wed Aug 11 20:16:37 UTC 2010

On Mon, Aug 09, 2010 at 05:06:52PM +0300, Mikko Rapeli wrote:
> Just hit some buttons while kdenlive svn4684 was opening up and got this.
> Don't know how to reproduce but maybe the backtrace is usefull to you.

Here's a second one after closing a big project.

Btw, should I just click that "Report bug" button in the KDE crash handler?
Do you check and read those backtraces?

Application: Kdenlive (kdenlive), signal: Segmentation fault
[Current thread is 1 (Thread 0xb4c2dae0 (LWP 1925))]

Thread 3 (Thread 0xae7bab70 (LWP 3650)):
#0  0xb776d424 in __kernel_vsyscall ()
#1  0xb5a00f15 in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:122
#2  0xb5aed0fd in __pthread_cond_wait (cond=0x9e40570, mutex=0x9e405a0) at forward.c:139
#3  0xb21f3b1f in consumer_thread (arg=0x9e40458) at consumer_sdl_preview.c:428
#4  0xb59fc955 in start_thread (arg=0xae7bab70) at pthread_create.c:300
#5  0xb5ae014e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 2 (Thread 0xaefbbb70 (LWP 4101)):
#0  0xb776d424 in __kernel_vsyscall ()
#1  0xb5a01242 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_timedwait.S:179
#2  0xb5aed154 in __pthread_cond_timedwait (cond=0x9e4f2c0, mutex=0x9e4f2a8, abstime=0xaefbb1cc) at forward.c:152
#3  0xb773e3b9 in mlt_consumer_get_frame (this=0x9e4f210) at mlt_consumer.c:502
#4  0xb773e500 in mlt_consumer_rt_frame (this=0x9e4f210) at mlt_consumer.c:900
#5  0xb21f42b4 in consumer_thread (arg=0x9e4f210) at consumer_sdl_still.c:560
#6  0xb59fc955 in start_thread (arg=0xaefbbb70) at pthread_create.c:300
#7  0xb5ae014e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb4c2dae0 (LWP 1925)):
[KCrash Handler]
#6  0x080c9112 in ~Monitor (this=0x9d32798, __in_chrg=<value optimized out>) at /home/mcfrisk/src/kdenlive-git/src/monitor.cpp:185
#7  0xb690beaf in QObjectPrivate::deleteChildren (this=0x9c65228) at kernel/qobject.cpp:1986
#8  0xb5e52a63 in ~QWidget (this=0x9c781b8, __in_chrg=<value optimized out>) at kernel/qwidget.cpp:1469
#9  0xb622b285 in ~QDockWidget (this=0x9c781b8, __in_chrg=<value optimized out>) at widgets/qdockwidget.cpp:1181
#10 0xb690beaf in QObjectPrivate::deleteChildren (this=0x9b8c110) at kernel/qobject.cpp:1986
#11 0xb5e52a63 in ~QWidget (this=0x9b8d298, __in_chrg=<value optimized out>) at kernel/qwidget.cpp:1469
#12 0xb6261631 in ~QMainWindow (this=0x9b8d298, __in_chrg=<value optimized out>) at widgets/qmainwindow.cpp:341
#13 0xb75a29f4 in ~KMainWindow (this=0x9b8d298, __in_chrg=<value optimized out>) at ../../kdeui/widgets/kmainwindow.cpp:476
#14 0xb75e7fc8 in ~KXmlGuiWindow (this=0x9b8d298, __vtt_parm=0x83343f4, __in_chrg=<value optimized out>) at ../../kdeui/xmlgui/kxmlguiwindow.cpp:127
#15 0x080ae301 in ~MainWindow (this=0x9b8d298, __in_chrg=<value optimized out>, __vtt_parm=<value optimized out>) at /home/mcfrisk/src/kdenlive-git/src/mainwindow.h:71
#16 0xb690ba85 in qDeleteInEventHandler (o=0x9d32870) at kernel/qobject.cpp:3998
#17 0xb690d148 in QObject::event (this=0x9b8d298, e=0x0) at kernel/qobject.cpp:1231
#18 0xb5e4a9a6 in QWidget::event (this=0x9b8d298, event=0x214a5f50) at kernel/qwidget.cpp:8455
#19 0xb62621b7 in QMainWindow::event (this=0x9b8d298, event=0x214a5f50) at widgets/qmainwindow.cpp:1433
#20 0xb75a0a74 in KMainWindow::event (this=0x9b8d298, ev=0x214a5f50) at ../../kdeui/widgets/kmainwindow.cpp:1103
#21 0xb75e885f in KXmlGuiWindow::event (this=0x9b8d298, ev=0x214a5f50) at ../../kdeui/xmlgui/kxmlguiwindow.cpp:131
#22 0xb5decbec in QApplicationPrivate::notify_helper (this=0x9b13aa0, receiver=0x9b8d298, e=0x214a5f50) at kernel/qapplication.cpp:4300
#23 0xb5df37f9 in QApplication::notify (this=0xbfb7fb4c, receiver=0x9b8d298, e=0x214a5f50) at kernel/qapplication.cpp:4265
#24 0xb74afb4a in KApplication::notify (this=0xbfb7fb4c, receiver=0x9b8d298, event=0x214a5f50) at ../../kdeui/kernel/kapplication.cpp:302
#25 0xb68fc92b in QCoreApplication::notifyInternal (this=0xbfb7fb4c, receiver=0x9b8d298, event=0x214a5f50) at kernel/qcoreapplication.cpp:704
#26 0xb68ff303 in QCoreApplication::sendEvent (receiver=0x0, event_type=0, data=0x9afdf48) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#27 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x9afdf48) at kernel/qcoreapplication.cpp:1345
#28 0xb68ff46d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1238
#29 0xb692883f in QCoreApplication::sendPostedEvents (s=0x9b15f10) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#30 postEventSourceDispatch (s=0x9b15f10) at kernel/qeventdispatcher_glib.cpp:276
#31 0xb54d72f5 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#32 0xb54dafd8 in ?? () from /lib/libglib-2.0.so.0
#33 0xb54db1b8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#34 0xb6928335 in QEventDispatcherGlib::processEvents (this=0x9afdc08, flags=...) at kernel/qeventdispatcher_glib.cpp:412
#35 0xb5eab255 in QGuiEventDispatcherGlib::processEvents (this=0x9afdc08, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#36 0xb68faf49 in QEventLoop::processEvents (this=0xbfb7faa4, flags=) at kernel/qeventloop.cpp:149
#37 0xb68fb39a in QEventLoop::exec (this=0xbfb7faa4, flags=...) at kernel/qeventloop.cpp:201
#38 0xb68ff52f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#39 0xb5decc87 in QApplication::exec () at kernel/qapplication.cpp:3579
#40 0x08087a7d in main (argc=2, argv=0xbfb7fd54) at /home/mcfrisk/src/kdenlive-git/src/main.cpp:87