1- I opened kdenlive with a default project of 1080p 24fps. 2- Created a color clip and added it to the timeline. 3- Added a video (with a different profile). 4- Crash Kdenlive 17.03.70 KDE Frameworks 5.33.0 Qt 5.8.0 (built against 5.8.0) MLT 6.5.0 Here is the backtrace: Thread 21 "Thread (pooled)" received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7fff50ffa700 (LWP 5204)] 0x00007fff38002a00 in ?? () (gdb) thread apply all bt Thread 25 (Thread 0x7fff977ff700 (LWP 5209)): #0 0x00007fffefdf676b in ppoll () at /usr/lib/libc.so.6 #1 0x00007fffe78c979d in pa_mainloop_poll () at /usr/lib/libpulse.so.0 #2 0x00007fffe78c9d8e in pa_mainloop_iterate () at /usr/lib/libpulse.so.0 #3 0x00007fffb5c2655d in () at /usr/lib/libSDL-1.2.so.0 #4 0x00007fffb5bfa76b in () at /usr/lib/libSDL-1.2.so.0 #5 0x00007fffb5c02e18 in () at /usr/lib/libSDL-1.2.so.0 #6 0x00007fffb5c43d39 in () at /usr/lib/libSDL-1.2.so.0 #7 0x00007fffede2d2e7 in start_thread () at /usr/lib/libpthread.so.0 #8 0x00007fffefe0054f in clone () at /usr/lib/libc.so.6 Thread 24 (Thread 0x7fff527fc700 (LWP 5208)): #0 0x00007fffede33756 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007ffff6fea86b in () at /usr/lib/libmlt.so.6 #2 0x000000000075abfd in RenderThread::run() (this=0x7fff4c2091e0) at /tmp/yaourt-tmp-frd/aur-kdenlive-git/src/kdenlive/src/monitor/glwidget.cpp:1291 #3 0x00007ffff08006d8 in () at /usr/lib/libQt5Core.so.5 #4 0x00007fffede2d2e7 in start_thread () at /usr/lib/libpthread.so.0 #5 0x00007fffefe0054f in clone () at /usr/lib/libc.so.6 Thread 23 (Thread 0x7fff53fff700 (LWP 5207)): #0 0x00007fffede33756 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007fffb5e900c0 in () at /usr/lib/mlt/libmltsdl.so #2 0x00007fffede2d2e7 in start_thread () at /usr/lib/libpthread.so.0 #3 0x00007fffefe0054f in clone () at /usr/lib/libc.so.6 Thread 21 (Thread 0x7fff50ffa700 (LWP 5204)): #0 0x00007fff38002a00 in () #1 0x00007ffff6dc216c in Mlt::Service::profile() () at /usr/lib/libmlt++.so.3 #2 0x000000000084414d in ProjectClip::slotCreateAudioThumbs() (this=this@entry=0x7ebb3b0) at /tmp/yaourt-tmp-frd/aur-kdenlive-git/src/kdenlive/src/bin/projectclip.cpp:1219 #3 0x000000000081bd2c in Bin::slotCreateAudioThumbs() (this=0x16579b0) at /tmp/yaourt-tmp-frd/aur-kdenlive-git/src/kdenlive/src/bin/bin.cpp:614 #4 0x00000000004d447d in QtConcurrent::RunFunctionTask<void>::run() (this=0x7fff38038c00) at /usr/include/qt/QtConcurrent/qtconcurrentrunbase.h:136 #5 0x00007ffff07fc96f in () at /usr/lib/libQt5Core.so.5 ---Type <return> to continue, or q <return> to quit--- #6 0x00007ffff08006d8 in () at /usr/lib/libQt5Core.so.5 #7 0x00007fffede2d2e7 in start_thread () at /usr/lib/libpthread.so.0 #8 0x00007fffefe0054f in clone () at /usr/lib/libc.so.6 Thread 20 (Thread 0x7fff517fb700 (LWP 5203)): #0 0x00007fffede33b63 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007ffff08014c6 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5 #2 0x00007ffff07fcbc4 in () at /usr/lib/libQt5Core.so.5 #3 0x00007ffff08006d8 in () at /usr/lib/libQt5Core.so.5 #4 0x00007fffede2d2e7 in start_thread () at /usr/lib/libpthread.so.0 #5 0x00007fffefe0054f in clone () at /usr/lib/libc.so.6 Thread 15 (Thread 0x7fff71266700 (LWP 5185)): #0 0x00007fffefdf667d in poll () at /usr/lib/libc.so.6 #1 0x00007fffe7b3f9b6 in () at /usr/lib/libglib-2.0.so.0 #2 0x00007fffe7b3facc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0 #3 0x00007ffff0a3007f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #4 0x00007ffff09d98ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #5 0x00007ffff07fba73 in QThread::exec() () at /usr/lib/libQt5Core.so.5 #6 0x00007ffff08006d8 in () at /usr/lib/libQt5Core.so.5 #7 0x00007fffede2d2e7 in start_thread () at /usr/lib/libpthread.so.0 #8 0x00007fffefe0054f in clone () at /usr/lib/libc.so.6 Thread 14 (Thread 0x7fff71a67700 (LWP 5184)): #0 0x00007fffede33756 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007ffff080158b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5 #2 0x00007ffff6241665 in () at /usr/lib/libQt5Quick.so.5 #3 0x00007ffff6241f72 in () at /usr/lib/libQt5Quick.so.5 #4 0x00007ffff08006d8 in () at /usr/lib/libQt5Core.so.5 #5 0x00007fffede2d2e7 in start_thread () at /usr/lib/libpthread.so.0 #6 0x00007fffefe0054f in clone () at /usr/lib/libc.so.6 Thread 13 (Thread 0x7fff728c9700 (LWP 5182)): #0 0x00007fffefdf667d in poll () at /usr/lib/libc.so.6 #1 0x00007fffe7b3f9b6 in () at /usr/lib/libglib-2.0.so.0 ---Type <return> to continue, or q <return> to quit--- #2 0x00007fffe7b3facc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0 #3 0x00007ffff0a3007f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #4 0x00007ffff09d98ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #5 0x00007ffff07fba73 in QThread::exec() () at /usr/lib/libQt5Core.so.5 #6 0x00007ffff08006d8 in () at /usr/lib/libQt5Core.so.5 #7 0x00007fffede2d2e7 in start_thread () at /usr/lib/libpthread.so.0 #8 0x00007fffefe0054f in clone () at /usr/lib/libc.so.6 Thread 12 (Thread 0x7fff730ca700 (LWP 5181)): #0 0x00007fffede33756 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007ffff080158b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5 #2 0x00007ffff6241665 in () at /usr/lib/libQt5Quick.so.5 #3 0x00007ffff6241f72 in () at /usr/lib/libQt5Quick.so.5 #4 0x00007ffff08006d8 in () at /usr/lib/libQt5Core.so.5 #5 0x00007fffede2d2e7 in start_thread () at /usr/lib/libpthread.so.0 #6 0x00007fffefe0054f in clone () at /usr/lib/libc.so.6 Thread 11 (Thread 0x7fff95693700 (LWP 5175)): #0 0x00007fffefdf667d in poll () at /usr/lib/libc.so.6 #1 0x00007fffe78d7ee1 in () at /usr/lib/libpulse.so.0 #2 0x00007fffe78c96f1 in pa_mainloop_poll () at /usr/lib/libpulse.so.0 #3 0x00007fffe78c9d8e in pa_mainloop_iterate () at /usr/lib/libpulse.so.0 #4 0x00007fffe78c9e40 in pa_mainloop_run () at /usr/lib/libpulse.so.0 #5 0x00007fffe78d7e29 in () at /usr/lib/libpulse.so.0 #6 0x00007fffde6ccfe8 in () at /usr/lib/pulseaudio/libpulsecommon-10.0.so #7 0x00007fffede2d2e7 in start_thread () at /usr/lib/libpthread.so.0 #8 0x00007fffefe0054f in clone () at /usr/lib/libc.so.6 Thread 9 (Thread 0x7fff96d1f700 (LWP 5173)): #0 0x00007fffefdf667d in poll () at /usr/lib/libc.so.6 #1 0x00007fffe7b3f9b6 in () at /usr/lib/libglib-2.0.so.0 #2 0x00007fffe7b3facc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0 #3 0x00007ffff0a3007f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #4 0x00007ffff09d98ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () ---Type <return> to continue, or q <return> to quit--- at /usr/lib/libQt5Core.so.5 #5 0x00007ffff07fba73 in QThread::exec() () at /usr/lib/libQt5Core.so.5 #6 0x00007ffff242c025 in () at /usr/lib/libQt5Qml.so.5 #7 0x00007ffff08006d8 in () at /usr/lib/libQt5Core.so.5 #8 0x00007fffede2d2e7 in start_thread () at /usr/lib/libpthread.so.0 #9 0x00007fffefe0054f in clone () at /usr/lib/libc.so.6 Thread 7 (Thread 0x7fff9ca17700 (LWP 5170)): #0 0x00007fffefdf667d in poll () at /usr/lib/libc.so.6 #1 0x00007fffe7b3f9b6 in () at /usr/lib/libglib-2.0.so.0 #2 0x00007fffe7b3facc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0 #3 0x00007ffff0a3007f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #4 0x00007ffff09d98ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #5 0x00007ffff07fba73 in QThread::exec() () at /usr/lib/libQt5Core.so.5 #6 0x00007ffff242c025 in () at /usr/lib/libQt5Qml.so.5 #7 0x00007ffff08006d8 in () at /usr/lib/libQt5Core.so.5 #8 0x00007fffede2d2e7 in start_thread () at /usr/lib/libpthread.so.0 #9 0x00007fffefe0054f in clone () at /usr/lib/libc.so.6 Thread 6 (Thread 0x7fffa930b700 (LWP 5160)): #0 0x00007fffefdf667d in poll () at /usr/lib/libc.so.6 #1 0x00007fffaf6b3d51 in () at /usr/lib/libusb-1.0.so.0 #2 0x00007fffede2d2e7 in start_thread () at /usr/lib/libpthread.so.0 #3 0x00007fffefe0054f in clone () at /usr/lib/libc.so.6 Thread 5 (Thread 0x7fffccf4f700 (LWP 5159)): #0 0x00007fffefdf667d in poll () at /usr/lib/libc.so.6 #1 0x00007fffe7b3f9b6 in () at /usr/lib/libglib-2.0.so.0 #2 0x00007fffe7b3facc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0 #3 0x00007ffff0a3007f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #4 0x00007ffff09d98ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #5 0x00007ffff07fba73 in QThread::exec() () at /usr/lib/libQt5Core.so.5 #6 0x00007ffff2ebc125 in () at /usr/lib/libQt5DBus.so.5 ---Type <return> to continue, or q <return> to quit--- #7 0x00007ffff08006d8 in () at /usr/lib/libQt5Core.so.5 #8 0x00007fffede2d2e7 in start_thread () at /usr/lib/libpthread.so.0 #9 0x00007fffefe0054f in clone () at /usr/lib/libc.so.6 Thread 4 (Thread 0x7fffceff7700 (LWP 5158)): #0 0x00007fffefdf667d in poll () at /usr/lib/libc.so.6 #1 0x00007fffe7b3f9b6 in () at /usr/lib/libglib-2.0.so.0 #2 0x00007fffe7b3fd42 in g_main_loop_run () at /usr/lib/libglib-2.0.so.0 #3 0x00007fffd1e74ff6 in () at /usr/lib/libgio-2.0.so.0 #4 0x00007fffe7b67295 in () at /usr/lib/libglib-2.0.so.0 #5 0x00007fffede2d2e7 in start_thread () at /usr/lib/libpthread.so.0 #6 0x00007fffefe0054f in clone () at /usr/lib/libc.so.6 Thread 3 (Thread 0x7fffcf7f8700 (LWP 5157)): #0 0x00007fffefdf667d in poll () at /usr/lib/libc.so.6 #1 0x00007fffe7b3f9b6 in () at /usr/lib/libglib-2.0.so.0 #2 0x00007fffe7b3facc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0 #3 0x00007fffe7b3fb11 in () at /usr/lib/libglib-2.0.so.0 #4 0x00007fffe7b67295 in () at /usr/lib/libglib-2.0.so.0 #5 0x00007fffede2d2e7 in start_thread () at /usr/lib/libpthread.so.0 #6 0x00007fffefe0054f in clone () at /usr/lib/libc.so.6 Thread 2 (Thread 0x7fffd9568700 (LWP 5156)): #0 0x00007fffefdf667d in poll () at /usr/lib/libc.so.6 #1 0x00007fffe74828e0 in () at /usr/lib/libxcb.so.1 #2 0x00007fffe7484679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1 #3 0x00007fffdbeee239 in () at /usr/lib/libQt5XcbQpa.so.5 #4 0x00007ffff08006d8 in () at /usr/lib/libQt5Core.so.5 #5 0x00007fffede2d2e7 in start_thread () at /usr/lib/libpthread.so.0 #6 0x00007fffefe0054f in clone () at /usr/lib/libc.so.6 Thread 1 (Thread 0x7ffff7eb3840 (LWP 5152)): #0 0x00007fffefdf667d in poll () at /usr/lib/libc.so.6 #1 0x00007fffe7b3f9b6 in () at /usr/lib/libglib-2.0.so.0 #2 0x00007fffe7b3facc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0 #3 0x00007ffff0a3007f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 ---Type <return> to continue, or q <return> to quit--- #4 0x00007ffff09d98ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #5 0x00007ffff09e1e14 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5 #6 0x000000000048fc66 in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at /tmp/yaourt-tmp-frd/aur-kdenlive-git/src/kdenlive/src/main.cpp:160
Here is another one but with a different versaion of Kdenlive. I still can't reproduce them though. Kdenlive 17.07.70 KDE Frameworks 5.34.0 Qt 5.9.0 (built against 5.8.0) MLT 6.5 (gdb) thread apply all bt Thread 1 "kdenlive" received signal SIGSEGV, Segmentation fault. 0x00007ffff0dd07c9 in QPersistentModelIndex::parent() const () from /usr/lib/libQt5Core.so.5 Thread 39 (Thread 0x7fff8ffff700 (LWP 9785)): #0 0x00007ffff0dd07c9 in QPersistentModelIndex::parent() const () at /usr/lib/libQt5Core.so.5 #1 0x00007ffff0de3288 in QItemSelection::indexes() const () at /usr/lib/libQt5Core.so.5 #2 0x00007ffff0de5621 in QItemSelectionModel::selectedIndexes() const () at /usr/lib/libQt5Core.so.5 #3 0x0000000000839d2b in Bin::slotProducerReady(requestClipInfo const&, ClipController*) (this=0x1936600, info=..., controller=<optimized out>) at /tmp/yaourt-tmp-frd/aur-kdenlive-git/src/kdenlive/src/bin/bin.cpp:2190 #4 0x00000000008ddd29 in Bin::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) (_o=0x1936600, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at /tmp/yaourt-tmp-frd/aur-kdenlive-git/src/build/src/kdenlive_autogen/NNRPYQ7WAA/moc_bin.cpp:1223 #5 0x00007ffff0e62465 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5 #6 0x00000000008c2af4 in ProducerQueue::gotFileProperties(requestClipInfo, ClipController*) (this=this@entry=0x19d01b0, _t1=..., _t2=<optimized out>) at /tmp/yaourt-tmp-frd/aur-kdenlive-git/src/build/src/kdenlive_autogen/EHEF7UJZKY/moc_producerqueue.cpp:309 #7 0x0000000000825aa3 in ProducerQueue::processFileProperties() (this=<optimized out>) at /tmp/yaourt-tmp-frd/aur-kdenlive-git/src/kdenlive/src/mltcontroller/producerqueue.cpp:841 #8 0x00000000004d748d in QtConcurrent::RunFunctionTask<void>::run() (this=0xc156850) at /usr/include/qt/QtConcurrent/qtconcurrentrunbase.h:136 #9 0x00007ffff0c55171 in () at /usr/lib/libQt5Core.so.5 #10 0x00007ffff0c58cbd in () at /usr/lib/libQt5Core.so.5 #11 0x00007fffee281297 in start_thread () at /usr/lib/libpthread.so.0 #12 0x00007ffff025b25f in clone () at /usr/lib/libc.so.6 Thread 38 (Thread 0x7fff6cc23700 (LWP 9779)): #0 0x00007fffee28739d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007fffb6ba36dd in () at /usr/lib/mlt/libmltsdl.so #2 0x00007fffee281297 in start_thread () at /usr/lib/libpthread.so.0 #3 0x00007ffff025b25f in clone () at /usr/lib/libc.so.6 Thread 37 (Thread 0x7fff99e36700 (LWP 9778)): #0 0x00007ffff0251396 in ppoll () at /usr/lib/libc.so.6 #1 0x00007fffe79c079d in pa_mainloop_poll () at /usr/lib/libpulse.so.0 #2 0x00007fffe79c0d8e in pa_mainloop_iterate () at /usr/lib/libpulse.so.0 ---Type <return> to continue, or q <return> to quit--- #3 0x00007fffb693a55d in () at /usr/lib/libSDL-1.2.so.0 #4 0x00007fffb690e76b in () at /usr/lib/libSDL-1.2.so.0 #5 0x00007fffb6916e18 in () at /usr/lib/libSDL-1.2.so.0 #6 0x00007fffb6957d39 in () at /usr/lib/libSDL-1.2.so.0 #7 0x00007fffee281297 in start_thread () at /usr/lib/libpthread.so.0 #8 0x00007ffff025b25f in clone () at /usr/lib/libc.so.6 Thread 36 (Thread 0x7fff6e025700 (LWP 9777)): #0 0x00007fffee28739d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007ffff6fea86b in () at /usr/lib/libmlt.so.6 #2 0x00000000007624fd in RenderThread::run() (this=0x7fff84183ea0) at /tmp/yaourt-tmp-frd/aur-kdenlive-git/src/kdenlive/src/monitor/glwidget.cpp:1282 #3 0x00007ffff0c58cbd in () at /usr/lib/libQt5Core.so.5 #4 0x00007fffee281297 in start_thread () at /usr/lib/libpthread.so.0 #5 0x00007ffff025b25f in clone () at /usr/lib/libc.so.6 Thread 35 (Thread 0x7fffa113c700 (LWP 9776)): #0 0x00007fffee28739d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007fffb6ba40c0 in () at /usr/lib/mlt/libmltsdl.so #2 0x00007fffee281297 in start_thread () at /usr/lib/libpthread.so.0 #3 0x00007ffff025b25f in clone () at /usr/lib/libc.so.6 Thread 30 (Thread 0x7fff7affd700 (LWP 9768)): #0 0x00007fffee28739d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007ffff6ff2a43 in () at /usr/lib/libmlt.so.6 #2 0x00007fffee281297 in start_thread () at /usr/lib/libpthread.so.0 #3 0x00007ffff025b25f in clone () at /usr/lib/libc.so.6 Thread 29 (Thread 0x7fff7b7fe700 (LWP 9767)): #0 0x00007fffee28739d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007ffff6ff2a43 in () at /usr/lib/libmlt.so.6 #2 0x00007fffee281297 in start_thread () at /usr/lib/libpthread.so.0 #3 0x00007ffff025b25f in clone () at /usr/lib/libc.so.6 Thread 28 (Thread 0x7fff7bfff700 (LWP 9766)): #0 0x00007fffee28739d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 ---Type <return> to continue, or q <return> to quit--- #1 0x00007ffff6ff2a43 in () at /usr/lib/libmlt.so.6 #2 0x00007fffee281297 in start_thread () at /usr/lib/libpthread.so.0 #3 0x00007ffff025b25f in clone () at /usr/lib/libc.so.6 Thread 27 (Thread 0x7fff8e7fc700 (LWP 9765)): #0 0x00007fffee28739d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007ffff6ff2a43 in () at /usr/lib/libmlt.so.6 #2 0x00007fffee281297 in start_thread () at /usr/lib/libpthread.so.0 #3 0x00007ffff025b25f in clone () at /usr/lib/libc.so.6 Thread 17 (Thread 0x7fff8cefa700 (LWP 9716)): #0 0x00007ffff02512bd in poll () at /usr/lib/libc.so.6 #1 0x00007fffe7c369b6 in () at /usr/lib/libglib-2.0.so.0 #2 0x00007fffe7c36acc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0 #3 0x00007ffff0e8be7f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #4 0x00007ffff0e3221a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #5 0x00007ffff0c5440a in QThread::exec() () at /usr/lib/libQt5Core.so.5 #6 0x00007ffff0c58cbd in () at /usr/lib/libQt5Core.so.5 #7 0x00007fffee281297 in start_thread () at /usr/lib/libpthread.so.0 #8 0x00007ffff025b25f in clone () at /usr/lib/libc.so.6 Thread 16 (Thread 0x7fff8dffb700 (LWP 9715)): #0 0x00007fffee28739d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007ffff0c5a0eb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5 #2 0x00007ffff66df8d8 in () at /usr/lib/libQt5Quick.so.5 #3 0x00007ffff66dfd3a in () at /usr/lib/libQt5Quick.so.5 #4 0x00007ffff0c58cbd in () at /usr/lib/libQt5Core.so.5 #5 0x00007fffee281297 in start_thread () at /usr/lib/libpthread.so.0 #6 0x00007ffff025b25f in clone () at /usr/lib/libc.so.6 Thread 13 (Thread 0x7fff98957700 (LWP 9712)): #0 0x00007ffff02512bd in poll () at /usr/lib/libc.so.6 #1 0x00007fffe7c369b6 in () at /usr/lib/libglib-2.0.so.0 #2 0x00007fffe7c36acc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0 ---Type <return> to continue, or q <return> to quit--- #3 0x00007ffff0e8be7f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #4 0x00007ffff0e3221a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #5 0x00007ffff0c5440a in QThread::exec() () at /usr/lib/libQt5Core.so.5 #6 0x00007ffff0c58cbd in () at /usr/lib/libQt5Core.so.5 #7 0x00007fffee281297 in start_thread () at /usr/lib/libpthread.so.0 #8 0x00007ffff025b25f in clone () at /usr/lib/libc.so.6 Thread 12 (Thread 0x7fff99158700 (LWP 9711)): #0 0x00007fffee28739d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007ffff0c5a0eb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5 #2 0x00007ffff66df8d8 in () at /usr/lib/libQt5Quick.so.5 #3 0x00007ffff66dfd3a in () at /usr/lib/libQt5Quick.so.5 #4 0x00007ffff0c58cbd in () at /usr/lib/libQt5Core.so.5 #5 0x00007fffee281297 in start_thread () at /usr/lib/libpthread.so.0 #6 0x00007ffff025b25f in clone () at /usr/lib/libc.so.6 Thread 9 (Thread 0x7fff9bfff700 (LWP 9700)): #0 0x00007ffff02512bd in poll () at /usr/lib/libc.so.6 #1 0x00007fffe7c369b6 in () at /usr/lib/libglib-2.0.so.0 #2 0x00007fffe7c36acc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0 #3 0x00007ffff0e8be7f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #4 0x00007ffff0e3221a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #5 0x00007ffff0c5440a in QThread::exec() () at /usr/lib/libQt5Core.so.5 #6 0x00007ffff28b8645 in () at /usr/lib/libQt5Qml.so.5 #7 0x00007ffff0c58cbd in () at /usr/lib/libQt5Core.so.5 #8 0x00007fffee281297 in start_thread () at /usr/lib/libpthread.so.0 #9 0x00007ffff025b25f in clone () at /usr/lib/libc.so.6 Thread 7 (Thread 0x7fffa253d700 (LWP 9698)): #0 0x00007ffff02512bd in poll () at /usr/lib/libc.so.6 #1 0x00007fffe7c369b6 in () at /usr/lib/libglib-2.0.so.0 #2 0x00007fffe7c36acc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0 ---Type <return> to continue, or q <return> to quit--- #3 0x00007ffff0e8be7f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #4 0x00007ffff0e3221a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #5 0x00007ffff0c5440a in QThread::exec() () at /usr/lib/libQt5Core.so.5 #6 0x00007ffff28b8645 in () at /usr/lib/libQt5Qml.so.5 #7 0x00007ffff0c58cbd in () at /usr/lib/libQt5Core.so.5 #8 0x00007fffee281297 in start_thread () at /usr/lib/libpthread.so.0 #9 0x00007ffff025b25f in clone () at /usr/lib/libc.so.6 Thread 6 (Thread 0x7fffaa001700 (LWP 9697)): #0 0x00007ffff02512bd in poll () at /usr/lib/libc.so.6 #1 0x00007fffb03a7d51 in () at /usr/lib/libusb-1.0.so.0 #2 0x00007fffee281297 in start_thread () at /usr/lib/libpthread.so.0 #3 0x00007ffff025b25f in clone () at /usr/lib/libc.so.6 Thread 5 (Thread 0x7fffccff5700 (LWP 9696)): #0 0x00007ffff02512bd in poll () at /usr/lib/libc.so.6 #1 0x00007fffe7c369b6 in () at /usr/lib/libglib-2.0.so.0 #2 0x00007fffe7c36acc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0 #3 0x00007ffff0e8be7f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #4 0x00007ffff0e3221a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #5 0x00007ffff0c5440a in QThread::exec() () at /usr/lib/libQt5Core.so.5 #6 0x00007ffff3340d45 in () at /usr/lib/libQt5DBus.so.5 #7 0x00007ffff0c58cbd in () at /usr/lib/libQt5Core.so.5 #8 0x00007fffee281297 in start_thread () at /usr/lib/libpthread.so.0 #9 0x00007ffff025b25f in clone () at /usr/lib/libc.so.6 Thread 4 (Thread 0x7fffcf09d700 (LWP 9695)): #0 0x00007ffff02512bd in poll () at /usr/lib/libc.so.6 #1 0x00007fffe7c369b6 in () at /usr/lib/libglib-2.0.so.0 #2 0x00007fffe7c36d42 in g_main_loop_run () at /usr/lib/libglib-2.0.so.0 #3 0x00007fffd1f1af86 in () at /usr/lib/libgio-2.0.so.0 #4 0x00007fffe7c5e295 in () at /usr/lib/libglib-2.0.so.0 ---Type <return> to continue, or q <return> to quit--- #5 0x00007fffee281297 in start_thread () at /usr/lib/libpthread.so.0 #6 0x00007ffff025b25f in clone () at /usr/lib/libc.so.6 Thread 3 (Thread 0x7fffcf89e700 (LWP 9694)): #0 0x00007ffff02512bd in poll () at /usr/lib/libc.so.6 #1 0x00007fffe7c369b6 in () at /usr/lib/libglib-2.0.so.0 #2 0x00007fffe7c36acc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0 #3 0x00007fffe7c36b11 in () at /usr/lib/libglib-2.0.so.0 #4 0x00007fffe7c5e295 in () at /usr/lib/libglib-2.0.so.0 #5 0x00007fffee281297 in start_thread () at /usr/lib/libpthread.so.0 #6 0x00007ffff025b25f in clone () at /usr/lib/libc.so.6 Thread 2 (Thread 0x7fffd9637700 (LWP 9693)): #0 0x00007ffff02512bd in poll () at /usr/lib/libc.so.6 #1 0x00007fffe75798e0 in () at /usr/lib/libxcb.so.1 #2 0x00007fffe757b679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1 #3 0x00007fffdbfbcd49 in () at /usr/lib/libQt5XcbQpa.so.5 #4 0x00007ffff0c58cbd in () at /usr/lib/libQt5Core.so.5 #5 0x00007fffee281297 in start_thread () at /usr/lib/libpthread.so.0 #6 0x00007ffff025b25f in clone () at /usr/lib/libc.so.6 Thread 1 (Thread 0x7ffff7eb2840 (LWP 9689)): #0 0x00007ffff0dd07c9 in QPersistentModelIndex::parent() const () at /usr/lib/libQt5Core.so.5 #1 0x00007ffff0de33fc in () at /usr/lib/libQt5Core.so.5 #2 0x00007ffff0de3cf5 in () at /usr/lib/libQt5Core.so.5 #3 0x00007ffff0de8c83 in () at /usr/lib/libQt5Core.so.5 #4 0x00007ffff0e62465 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5 #5 0x00007ffff0edbdd6 in QAbstractItemModel::layoutAboutToBeChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint) () at /usr/lib/libQt5Core.so.5 #6 0x00007ffff0dfccb4 in () at /usr/lib/libQt5Core.so.5 #7 0x00007ffff0dfde88 in () at /usr/lib/libQt5Core.so.5 #8 0x00007ffff0e62465 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5 #9 0x00007ffff0edbc8c in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) () at /usr/lib/libQt5Core.so.5 ---Type <return> to continue, or q <return> to quit--- #10 0x00000000008475f8 in ProjectItemModel::onItemUpdated(AbstractProjectItem*) (this=0x198a670, item=<optimized out>) at /tmp/yaourt-tmp-frd/aur-kdenlive-git/src/kdenlive/src/bin/projectitemmodel.cpp:341 #11 0x00007ffff0e6257f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5 #12 0x00000000008be54f in Bin::itemUpdated(AbstractProjectItem*) (this=<optimized out>, _t1=<optimized out>, _t1@entry=0xc48b9e0) at /tmp/yaourt-tmp-frd/aur-kdenlive-git/src/build/src/kdenlive_autogen/NNRPYQ7WAA/moc_bin.cpp:1500 #13 0x000000000082e035 in Bin::emitItemUpdated(AbstractProjectItem*) (this=<optimized out>, item=item@entry=0xc48b9e0) at /tmp/yaourt-tmp-frd/aur-kdenlive-git/src/kdenlive/src/bin/bin.cpp:2255 #14 0x0000000000850c94 in ProjectClip::setThumbnail(QImage const&) (this=this@entry=0xc48b9e0, img=...) at /tmp/yaourt-tmp-frd/aur-kdenlive-git/src/kdenlive/src/bin/projectclip.cpp:335 #15 0x000000000082dcd7 in Bin::slotThumbnailReady(QString const&, QImage const&, bool) (this=0x1936600, id=..., img=..., fromFile=<optimized out>) at /tmp/yaourt-tmp-frd/aur-kdenlive-git/src/kdenlive/src/bin/bin.cpp:2104 #16 0x00007ffff0e62e72 in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5 #17 0x00007ffff1f27473 in QWidget::event(QEvent*) () at /usr/lib/libQt5Widgets.so.5 #18 0x00007ffff1ee646c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5 #19 0x00007ffff1eedcf4 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5 #20 0x00007ffff0e33b98 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5 #21 0x00007ffff0e3602d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/libQt5Core.so.5 #22 0x00007ffff0e8ba63 in () at /usr/lib/libQt5Core.so.5 #23 0x00007fffe7c367b7 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0 #24 0x00007fffe7c36a20 in () at /usr/lib/libglib-2.0.so.0 #25 0x00007fffe7c36acc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0 #26 0x00007ffff0e8be7f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #27 0x00007ffff0e3221a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #28 0x00007ffff0e3aa74 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5 #29 0x0000000000490c39 in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at /tmp/yaourt-tmp-frd/aur-kdenlive-git/src/kdenlive/src/main.cpp:158
*** Bug 379043 has been marked as a duplicate of this bug. ***
Hi Farid. Do you get this crash with the AppImage?
This is a random crash, but I will close it since the refactoring has a different codebase.