Bug 467707

Application: dolphin (22.12.3)

Qt Version: 5.15.8
Frameworks Version: 5.104.0
Operating System: Linux 6.1.0-1009-tuxedo x86_64
Windowing System: X11
Distribution: TUXEDO OS 2
DrKonqi: 5.27.2 [KCrashBackend]

-- Information about the crash:
I believe this problem can be easily reproduce:

1. Get a movie file in MKV format (my case is an anime file with duration around 24 minutes, 1.3GiB)
2. Select the file
3. Play it on the preview panel
4. Use the video track to skip to any moment in the video (after the third attempt, this step is optional)
5. Pause or Not and click outside the Preview panel
6. Get a coffee and enjoy the crash.

I have tried with 5 difference videos
- first 3 difference videos is same format, duration and size → got crash 
- 1 video with very short duration (18s) and using youtube format (upload video to youtube then redownload) → work normally
- 1 video with short durartion (4min) → work normally
 
OS Distro: Tuxedo OS 2 (Ubuntu based)

The reporter is unsure if this crash is reproducible.

-- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault

[KCrash Handler]
#4  ___pthread_mutex_lock (mutex=0xffffffffffffff64) at ./nptl/pthread_mutex_lock.c:80
#5  0x00007f28801415b1 in  () at /lib/x86_64-linux-gnu/libvlccore.so.9
#6  0x00007f283c76c92a in  () at /usr/lib/x86_64-linux-gnu/vlc/plugins/codec/liblibass_plugin.so
#7  0x00007f283c76ce12 in  () at /usr/lib/x86_64-linux-gnu/vlc/plugins/codec/liblibass_plugin.so
#8  0x00007f288014ba9c in subpicture_Delete () at /lib/x86_64-linux-gnu/libvlccore.so.9
#9  0x00007f2880113966 in spu_Destroy () at /lib/x86_64-linux-gnu/libvlccore.so.9
#10 0x00007f28801191e2 in vout_Close () at /lib/x86_64-linux-gnu/libvlccore.so.9
#11 0x00007f28800f94df in input_resource_TerminateVout () at /lib/x86_64-linux-gnu/libvlccore.so.9
#12 0x00007f288008422b in libvlc_media_player_stop () at /lib/x86_64-linux-gnu/libvlc.so.5
#13 0x00007f28801dee51 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/phonon4qt5_backend/phonon_vlc.so
#14 0x000055ad8a4ac046 in  ()
#15 0x00007f28cf3af97e in QWidget::event(QEvent*) () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007f28cf36c793 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007f28ce6bc07a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f28cf3aa855 in QWidgetPrivate::hide_helper() () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x00007f28cf3af678 in QWidgetPrivate::setVisible(bool) () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x000055ad8a4b2051 in  ()
#21 0x000055ad8a4b25ff in  ()
#22 0x00007f28ce6f40d4 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f28cfbafd30 in KJob::result(KJob*, KJob::QPrivateSignal) () at /lib/x86_64-linux-gnu/libKF5CoreAddons.so.5
#24 0x00007f28cfbb5c1b in KJob::finishJob(bool) () at /lib/x86_64-linux-gnu/libKF5CoreAddons.so.5
#25 0x00007f28ce6f40d4 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007f28d03b3f13 in KIO::SlaveInterface::dispatch(int, QByteArray const&) () at /lib/x86_64-linux-gnu/libKF5KIOCore.so.5
#27 0x00007f28d03b255d in KIO::SlaveInterface::dispatch() () at /lib/x86_64-linux-gnu/libKF5KIOCore.so.5
#28 0x00007f28d03b6912 in KIO::Slave::gotInput() () at /lib/x86_64-linux-gnu/libKF5KIOCore.so.5
#29 0x00007f28ce6f40d4 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007f28ce6e9ade in QObject::event(QEvent*) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007f28cf36c793 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#32 0x00007f28ce6bc07a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#33 0x00007f28ce6bf167 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#34 0x00007f28ce716487 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#35 0x00007f28cc451d3b in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f28cc4a66c8 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007f28cc44f3e3 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007f28ce715ad8 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#39 0x00007f28ce6ba99b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#40 0x00007f28ce6c2f34 in QCoreApplication::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#41 0x000055ad8a463acd in  ()
#42 0x00007f28cdc29d90 in __libc_start_call_main (main=main@entry=0x55ad8a45dc50, argc=argc@entry=1, argv=argv@entry=0x7ffd21b7ed58) at ../sysdeps/nptl/libc_start_call_main.h:58
#43 0x00007f28cdc29e40 in __libc_start_main_impl (main=0x55ad8a45dc50, argc=1, argv=0x7ffd21b7ed58, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffd21b7ed48) at ../csu/libc-start.c:392
#44 0x000055ad8a4642c5 in  ()
[Inferior 1 (process 309069) detached]

Reported using DrKonqi