https://bugs.kde.org/show_bug.cgi?id=376759
--- Comment #1 from Richard Fairthorne <richard.fairtho...@gmail.com> --- Here is a backtrace from running: ddd kdenlive (gdb) run Starting program: /usr/bin/kdenlive [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [New Thread 0x7fffe359c700 (LWP 27094)] [New Thread 0x7fffbda4c700 (LWP 27096)] [New Thread 0x7fffb9424700 (LWP 27121)] [New Thread 0x7fffb3fff700 (LWP 27122)] [New Thread 0x7fffb37fe700 (LWP 27125)] WARNING: bool Phonon::FactoryPrivate::createBackend() phonon backend plugin could not be loaded WARNING: bool Phonon::FactoryPrivate::createBackend() phonon backend plugin could not be loaded WARNING: bool Phonon::FactoryPrivate::createBackend() phonon backend plugin could not be loaded org.kde.knotifications: Audio notification requested, but sound file from notifyrc file was not found, aborting audio notification Removing cache at "/home/richard/.cache/kdenlive-thumbs.kcache" [New Thread 0x7fffb183d700 (LWP 27132)] [New Thread 0x7fffb183d700 (LWP 27133)] [Thread 0x7fffb183d700 (LWP 27132) exited] [New Thread 0x7fffb103c700 (LWP 27134)] [New Thread 0x7fffb083b700 (LWP 27135)] [New Thread 0x7fff9fffe700 (LWP 27136)] QXcbConnection: XCB error: 8 (BadMatch), sequence: 589, resource id: 58720271, major code: 155 (Unknown), minor code: 11 [New Thread 0x7fff9f7fd700 (LWP 27137)] Removing cache at "/home/richard/.cache/kdenlive-thumbs.kcache" [Thread 0x7fffb183d700 (LWP 27133) exited] [Thread 0x7fff9f7fd700 (LWP 27137) exited] [Thread 0x7fffb083b700 (LWP 27135) exited] [New Thread 0x7fffb083b700 (LWP 27150)] [New Thread 0x7fffb083b700 (LWP 27151)] [Thread 0x7fffb083b700 (LWP 27150) exited] [New Thread 0x7fff9f7fd700 (LWP 27152)] [New Thread 0x7fffb183d700 (LWP 27153)] [New Thread 0x7fff8f44c700 (LWP 27154)] [New Thread 0x7fff8ec4b700 (LWP 27155)] [New Thread 0x7fff8e44a700 (LWP 27156)] [New Thread 0x7fff8dc49700 (LWP 27157)] [New Thread 0x7fff8d448700 (LWP 27158)] [Thread 0x7fffb083b700 (LWP 27151) exited] [Thread 0x7fff8d448700 (LWP 27158) exited] [Thread 0x7fff9f7fd700 (LWP 27152) exited] [New Thread 0x7fff9f7fd700 (LWP 27159)] [New Thread 0x7fff9f7fd700 (LWP 27160)] [Thread 0x7fff9f7fd700 (LWP 27159) exited] [New Thread 0x7fff8d448700 (LWP 27161)] [New Thread 0x7fffb083b700 (LWP 27162)] [New Thread 0x7fff8cc47700 (LWP 27163)] Thread 24 "RenderThread" received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7fff8d448700 (LWP 27161)] __GI___pthread_mutex_lock (mutex=0x656d6977a7) at ../nptl/pthread_mutex_lock.c:67 (gdb) Specified start and end are in different files. (gdb) thread apply all bt Thread 26 (Thread 0x7fff8cc47700 (LWP 27163)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x00007fffbcad7cdd in video_thread (arg=0x2dd8ee0) at consumer_sdl_audio.c:423 #2 0x00007ffff003b6ba in start_thread (arg=0x7fff8cc47700) at pthread_create.c:333 #3 0x00007ffff171982d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 25 (Thread 0x7fffb083b700 (LWP 27162)): #0 0x00007ffff170dc21 in __GI_ppoll (fds=0x7fff800cf860, nfds=3, timeout=<optimized out>, sigmask=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:50 #1 0x00007fffec7daebd in pa_mainloop_poll () from /usr/lib/x86_64-linux-gnu/libpulse.so.0 #2 0x00007fffec7db4ae in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0 #3 0x00007fffc9ddafeb in ?? () from /usr/lib/x86_64-linux-gnu/libSDL-1.2.so.0 #4 0x00007fffc9dad920 in ?? () from /usr/lib/x86_64-linux-gnu/libSDL-1.2.so.0 #5 0x00007fffc9db70b8 in ?? () from /usr/lib/x86_64-linux-gnu/libSDL-1.2.so.0 #6 0x00007fffc9df6f59 in ?? () from /usr/lib/x86_64-linux-gnu/libSDL-1.2.so.0 #7 0x00007ffff003b6ba in start_thread (arg=0x7fffb083b700) at pthread_create.c:333 #8 0x00007ffff171982d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 24 (Thread 0x7fff8d448700 (LWP 27161)): #0 __GI___pthread_mutex_lock (mutex=0x656d6977a7) at ../nptl/pthread_mutex_lock.c:67 #1 0x00007ffff6fda0ce in mlt_properties_find (name=0x7fffd215e3bf "meta.media.nb_streams", name@entry=0x656d69745f <error: Cannot access memory at address 0x656d69745f>, self=0x7fff900034f0, self@entry=0xa99b9236) at mlt_properties.c:513 #2 mlt_properties_fetch (self=self@entry=0x7fff900034f0, name=name@entry=0x7fffd215e3bf "meta.media.nb_streams") at mlt_properties.c:584 #3 0x00007ffff6fdd2b6 in mlt_properties_set_int (self=self@entry=0x7fff900034f0, name=name@entry=0x7fffd215e3bf "meta.media.nb_streams", value=2) at mlt_properties.c:950 #4 0x00007fffd2153adb in find_default_streams (self=0x7fff6ff2c930) at producer_avformat.c:364 #5 producer_open (self=self@entry=0x7fff6ff2c930, profile=0x2245020, URL=URL@entry=0x7fff91c19e60 "/media/richard/New Volume/sessions/camera/Danielle/100EOS5D/MVI_0412.MOV", take_lock=take_lock@entry=0, test_open=test_open@entry=0) at producer_avformat.c:794 #6 0x00007fffd21552ff in producer_set_up_video (frame=0x7fff74401d30, self=0x7fff6ff2c930) at producer_avformat.c:2223 #7 producer_get_frame (producer=0x2e8bd50, frame=0x7fff8d447bc8, index=<optimized out>) at producer_avformat.c:2957 #8 0x00007ffff6fe169e in producer_get_frame (service=0x2e8bd50, frame=0x7fff8d447bc8, index=0) at mlt_producer.c:643 #9 0x00007ffff6fdf86c in mlt_service_get_frame (self=0x2e8bd50, frame=0x7fff8d447bc8, index=0) at mlt_service.c:563 #10 0x00007ffff6fdf86c in mlt_service_get_frame (self=self@entry=0x2dd8ee0, frame=frame@entry=0x7fff8d447bc8, index=index@entry=0) at mlt_service.c:563 #11 0x00007ffff6fe6968 in mlt_consumer_get_frame (self=self@entry=0x2dd8ee0) at mlt_consumer.c:700 #12 0x00007ffff6fe6e36 in consumer_read_ahead_thread (arg=0x2dd8ee0) at mlt_consumer.c:856 #13 0x00000000008468ff in RenderThread::run() () #14 0x00007ffff210c7be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #15 0x00007ffff003b6ba in start_thread (arg=0x7fff8d448700) at pthread_create.c:333 #16 0x00007ffff171982d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 23 (Thread 0x7fff9f7fd700 (LWP 27160)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x00007fffbcad868f in consumer_thread (arg=0x2dd8ee0) at consumer_sdl_audio.c:595 #2 0x00007ffff003b6ba in start_thread (arg=0x7fff9f7fd700) at pthread_create.c:333 #3 0x00007ffff171982d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 20 (Thread 0x7fff8dc49700 (LWP 27157)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x00007ffff6feef43 in mlt_slices_worker (p=0x7fff8021ace0) at mlt_slices.c:95 #2 0x00007ffff003b6ba in start_thread (arg=0x7fff8dc49700) at pthread_create.c:333 #3 0x00007ffff171982d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 19 (Thread 0x7fff8e44a700 (LWP 27156)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x00007ffff6feef43 in mlt_slices_worker (p=0x7fff8021ace0) at mlt_slices.c:95 #2 0x00007ffff003b6ba in start_thread (arg=0x7fff8e44a700) at pthread_create.c:333 #3 0x00007ffff171982d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 18 (Thread 0x7fff8ec4b700 (LWP 27155)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x00007fffd12178ae in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56 #2 0x00007ffff003b6ba in start_thread (arg=0x7fff8ec4b700) at pthread_create.c:333 #3 0x00007ffff171982d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 17 (Thread 0x7fff8f44c700 (LWP 27154)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x00007fffd12178ae in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56 #2 0x00007ffff003b6ba in start_thread (arg=0x7fff8f44c700) at pthread_create.c:333 #3 0x00007ffff171982d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 16 (Thread 0x7fffb183d700 (LWP 27153)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x00007fffd12178ae in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56 #2 0x00007ffff003b6ba in start_thread (arg=0x7fffb183d700) at pthread_create.c:333 #3 0x00007ffff171982d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 11 (Thread 0x7fff9fffe700 (LWP 27136)): #0 0x00007ffff170db5d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007fffee63338c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007fffee63349c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007ffff23437eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007ffff22eab4a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007ffff2107834 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007ffff210c7be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #7 0x00007ffff003b6ba in start_thread (arg=0x7fff9fffe700) at pthread_create.c:333 #8 0x00007ffff171982d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 9 (Thread 0x7fffb103c700 (LWP 27134)): #0 0x00007ffff170db5d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007fffee63338c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007fffee63349c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007ffff23437cf in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007ffff22eab4a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007ffff2107834 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007ffff210c7be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #7 0x00007ffff003b6ba in start_thread (arg=0x7fffb103c700) at pthread_create.c:333 #8 0x00007ffff171982d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 6 (Thread 0x7fffb37fe700 (LWP 27125)): #0 0x00007ffff170db5d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007fffee63338c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007fffee63349c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007ffff23437cf in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007ffff22eab4a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007ffff2107834 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007ffff2eb83c5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5 #7 0x00007ffff210c7be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007ffff003b6ba in start_thread (arg=0x7fffb37fe700) at pthread_create.c:333 #9 0x00007ffff171982d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 5 (Thread 0x7fffb3fff700 (LWP 27122)): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225 #1 0x00007ffff210d996 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #2 0x00007ffff2109463 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #3 0x00007ffff210c7be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007ffff003b6ba in start_thread (arg=0x7fffb3fff700) at pthread_create.c:333 #5 0x00007ffff171982d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 4 (Thread 0x7fffb9424700 (LWP 27121)): #0 0x00007ffff170db5d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007fffee63338c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007fffee63349c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007ffff23437cf in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007ffff22eab4a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007ffff2107834 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007ffff2eb83c5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5 #7 0x00007ffff210c7be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007ffff003b6ba in start_thread (arg=0x7fffb9424700) at pthread_create.c:333 #9 0x00007ffff171982d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 3 (Thread 0x7fffbda4c700 (LWP 27096)): #0 0x00007ffff170db5d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007fffc3d3564c in ?? () from /lib/x86_64-linux-gnu/libusb-1.0.so.0 #2 0x00007ffff003b6ba in start_thread (arg=0x7fffbda4c700) at pthread_create.c:333 #3 0x00007ffff171982d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 2 (Thread 0x7fffe359c700 (LWP 27094)): #0 0x00007ffff170db5d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007fffec399c62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1 #2 0x00007fffec39b8d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1 #3 0x00007fffe58ee629 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 #4 0x00007ffff210c7be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007ffff003b6ba in start_thread (arg=0x7fffe359c700) at pthread_create.c:333 #6 0x00007ffff171982d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 1 (Thread 0x7fffe5ca08c0 (LWP 27090)): #0 0x00007ffff170db5d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007fffee63338c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007fffee63349c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007ffff23437cf in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007ffff22eab4a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007ffff22f2bec in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x000000000097d471 in main () (gdb) -- You are receiving this mail because: You are watching all bug changes.