https://bugs.kde.org/show_bug.cgi?id=402514

            Bug ID: 402514
           Summary: Kdenlive crashes when adding a new video to the
                    timeline
           Product: kdenlive
           Version: 18.12.0
          Platform: Archlinux Packages
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: Video Display & Export
          Assignee: j...@kdenlive.org
          Reporter: etnguyen03+kdeb...@gmail.com
  Target Milestone: ---

Application: kdenlive (18.12.0)

Qt Version: 5.12.0
Frameworks Version: 5.53.0
Operating System: Linux 4.19.12-arch1-1-ARCH x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
- What I was doing when the application crashed:

I was adding a video (mp4, with more than one audio track if that matters) to
the timeline; Kdenlive suddenly crashed.

I was able to reproduce this bug every time I added such a file to the
timeline.

-- Backtrace:
Application: Kdenlive (kdenlive), signal: Aborted
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f869d553000 (LWP 32132))]

Thread 47 (Thread 0x7f8630ff9700 (LWP 866)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 46 (Thread 0x7f86317fa700 (LWP 865)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 45 (Thread 0x7f8631ffb700 (LWP 864)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 44 (Thread 0x7f86327fc700 (LWP 863)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 43 (Thread 0x7f8632ffd700 (LWP 862)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 42 (Thread 0x7f86337fe700 (LWP 861)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 41 (Thread 0x7f8633fff700 (LWP 860)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 40 (Thread 0x7f8638ff9700 (LWP 859)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 39 (Thread 0x7f86397fa700 (LWP 858)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 38 (Thread 0x7f8639ffb700 (LWP 857)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 37 (Thread 0x7f863a7fc700 (LWP 855)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 36 (Thread 0x7f863affd700 (LWP 853)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 35 (Thread 0x7f863b7fe700 (LWP 850)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 34 (Thread 0x7f863bfff700 (LWP 849)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 33 (Thread 0x7f8613fe7700 (LWP 848)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 32 (Thread 0x7f86137e6700 (LWP 847)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 31 (Thread 0x7f8627fff700 (LWP 846)):
[KCrash Handler]
#6  0x00007f86a6d55d7f in raise () at /usr/lib/libc.so.6
#7  0x00007f86a6d40672 in abort () at /usr/lib/libc.so.6
#8  0x00007f86a6d40548 in _nl_load_domain.cold.0 () at /usr/lib/libc.so.6
#9  0x00007f86a6d4e396 in  () at /usr/lib/libc.so.6
#10 0x00007f8683704881 in movit::EffectChain::render(unsigned int,
std::vector<movit::EffectChain::DestinationTexture,
std::allocator<movit::EffectChain::DestinationTexture> > const&, unsigned int,
unsigned int, unsigned int, unsigned int) () at /usr/lib/libmovit.so.8
#11 0x00007f8683704b76 in movit::EffectChain::render_to_fbo(unsigned int,
unsigned int, unsigned int) () at /usr/lib/libmovit.so.8
#12 0x00007f8689126aab in
GlslManager::render_frame_texture(movit::EffectChain*, mlt_frame_s*, int, int,
unsigned char**) () at /usr/lib/mlt/libmltopengl.so
#13 0x00007f868912a26b in  () at /usr/lib/mlt/libmltopengl.so
#14 0x00007f86a9a2aac3 in mlt_frame_get_image () at /usr/lib/libmlt.so.6
#15 0x00007f86a9a40cab in  () at /usr/lib/libmlt.so.6
#16 0x00007f86a9a2aa62 in mlt_frame_get_image () at /usr/lib/libmlt.so.6
#17 0x00007f86a9a3e122 in  () at /usr/lib/libmlt.so.6
#18 0x0000563a6d33948e in  ()
#19 0x00007f86a72b49cc in  () at /usr/lib/libQt5Core.so.5
#20 0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#21 0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 30 (Thread 0x7f866d3f0700 (LWP 830)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86a9a3e40c in mlt_consumer_rt_frame () at /usr/lib/libmlt.so.6
#2  0x00007f86984e299c in  () at /usr/lib/mlt/libmltsdl2.so
#3  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 29 (Thread 0x7f867c04e700 (LWP 829)):
#0  0x00007f86a6e0a7a4 in read () at /usr/lib/libc.so.6
#1  0x00007f869e572782 in pa_read () at
/usr/lib/pulseaudio/libpulsecommon-12.2.so
#2  0x00007f86a222b55f in pa_mainloop_prepare () at /usr/lib/libpulse.so.0
#3  0x00007f86a222bfd1 in pa_mainloop_iterate () at /usr/lib/libpulse.so.0
#4  0x00007f86a222c091 in pa_mainloop_run () at /usr/lib/libpulse.so.0
#5  0x00007f868aa3c9b0 in  () at /usr/lib/libSDL2-2.0.so.0
#6  0x00007f868a9daf9f in  () at /usr/lib/libSDL2-2.0.so.0
#7  0x00007f868aa5e6ea in  () at /usr/lib/libSDL2-2.0.so.0
#8  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 28 (Thread 0x7f866ee69700 (LWP 828)):
#0  0x00007f86a681eef6 in pthread_cond_timedwait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86a72baa59 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f86a72bab97 in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#3  0x00007f86a72b8bb4 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f86a72b49cc in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 27 (Thread 0x7f8612fe5700 (LWP 757)):
#0  0x00007f8692d2d1ef in  () at /usr/lib/libavcodec.so.58
#1  0x00007f869881103f in  () at /usr/lib/mlt/libmltavformat.so
#2  0x00007f86a9a299eb in mlt_frame_get_audio () at /usr/lib/libmlt.so.6
#3  0x00007f86993a3301 in  () at /usr/lib/mlt/libmltcore.so
#4  0x00007f86a9a299eb in mlt_frame_get_audio () at /usr/lib/libmlt.so.6
#5  0x00007f86993932ab in  () at /usr/lib/mlt/libmltnormalize.so
#6  0x00007f86a9a299eb in mlt_frame_get_audio () at /usr/lib/libmlt.so.6
#7  0x00007f86a9a0c93f in Mlt::Frame::get_audio(mlt_audio_format&, int&, int&,
int&) () at /usr/lib/libmlt++.so.3
#8  0x0000563a6d41ba3c in  ()
#9  0x0000563a6d3feb54 in  ()
#10 0x0000563a6d0cc693 in  ()
#11 0x00007f86a72b89a1 in  () at /usr/lib/libQt5Core.so.5
#12 0x00007f86a72b49cc in  () at /usr/lib/libQt5Core.so.5
#13 0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#14 0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 26 (Thread 0x7f861aff5700 (LWP 739)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 25 (Thread 0x7f861b7f6700 (LWP 738)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 24 (Thread 0x7f861bff7700 (LWP 736)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 23 (Thread 0x7f861c7f8700 (LWP 735)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 22 (Thread 0x7f861cff9700 (LWP 733)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 21 (Thread 0x7f861d7fa700 (LWP 732)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 20 (Thread 0x7f861dffb700 (LWP 731)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 19 (Thread 0x7f861e7fc700 (LWP 730)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 18 (Thread 0x7f861effd700 (LWP 729)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 17 (Thread 0x7f861f7fe700 (LWP 728)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 16 (Thread 0x7f861ffff700 (LWP 727)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 15 (Thread 0x7f8624852700 (LWP 726)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 14 (Thread 0x7f8625053700 (LWP 725)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 13 (Thread 0x7f8625854700 (LWP 724)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 12 (Thread 0x7f8626055700 (LWP 723)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7f8626856700 (LWP 722)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86930b85ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7f8677fff700 (LWP 721)):
#0  0x00007f86a6e144ed in syscall () at /usr/lib/libc.so.6
#1  0x00007f86a72b4c66 in QBasicMutex::lockInternal() () at
/usr/lib/libQt5Core.so.5
#2  0x0000563a6d418b45 in  ()
#3  0x0000563a6d41a14c in  ()
#4  0x0000563a6d0cc693 in  ()
#5  0x00007f86a72b89a1 in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f86a72b49cc in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7f8641ffb700 (LWP 32147)):
#0  0x00007f86a2494427 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f86a24e5dfd in g_main_context_prepare () at
/usr/lib/libglib-2.0.so.0
#2  0x00007f86a24e6466 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f86a24e662e in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#4  0x00007f86a74c65c4 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#5  0x00007f86a746f58c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#6  0x00007f86a72b35c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f86a72b49cc in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7f8643fff700 (LWP 32146)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86a72baadc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f86a72babca in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#3  0x00007f86a84f34cd in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f86a84f373c in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007f86a72b49cc in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f866de67700 (LWP 32144)):
#0  0x00007f86a6e0ec21 in poll () at /usr/lib/libc.so.6
#1  0x00007f86a24e6540 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f86a24e662e in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007f86a74c65c4 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4  0x00007f86a746f58c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5  0x00007f86a72b35c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f86a72b49cc in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f866e668700 (LWP 32143)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86a72baadc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f86a72babca in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#3  0x00007f86a84f34cd in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f86a84f373c in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007f86a72b49cc in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f86777fe700 (LWP 32138)):
#0  0x00007f86a6e0ec21 in poll () at /usr/lib/libc.so.6
#1  0x00007f86a24e6540 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f86a24e662e in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007f86a74c65c4 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4  0x00007f86a746f58c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5  0x00007f86a72b35c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f86a81a7b89 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f86a72b49cc in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f867d83d700 (LWP 32136)):
#0  0x00007f86a6e0ec21 in poll () at /usr/lib/libc.so.6
#1  0x00007f86a24e6540 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f86a24e662e in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007f86a74c65c4 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4  0x00007f86a746f58c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5  0x00007f86a72b35c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f86a81a7b89 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f86a72b49cc in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f869a345700 (LWP 32135)):
#0  0x00007f86a6e0ec21 in poll () at /usr/lib/libc.so.6
#1  0x00007f86a24e6540 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f86a24e662e in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007f86a74c65c4 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4  0x00007f86a746f58c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5  0x00007f86a72b35c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f86a8eb9ba6 in  () at /usr/lib/libQt5DBus.so.5
#7  0x00007f86a72b49cc in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f869d54c700 (LWP 32133)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86a711ccd1 in __gthread_cond_wait (__mutex=<optimized out>,
__cond=<optimized out>) at
/build/gcc/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:864
#2  0x00007f86a711ccd1 in
std::condition_variable::wait(std::unique_lock<std::mutex>&) (this=<optimized
out>, __lock=...) at
/build/gcc/src/gcc/libstdc++-v3/src/c++11/condition_variable.cc:53
#3  0x00007f86a5b87f54 in  () at /usr/lib/libQt5WebKit.so.5
#4  0x00007f86a5b88079 in  () at /usr/lib/libQt5WebKit.so.5
#5  0x00007f86a7123063 in std::execute_native_thread_routine(void*)
(__p=0x563a6ef67f10) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#6  0x00007f86a6818a9d in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f86a6e19b23 in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f869d553000 (LWP 32132)):
#0  0x00007f86a681eafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f86a72baadc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f86a72babca in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#3  0x00007f86a72b71db in QThreadPoolPrivate::waitForDone(int) () at
/usr/lib/libQt5Core.so.5
#4  0x00007f86a72b76c2 in QThreadPool::waitForDone(int) () at
/usr/lib/libQt5Core.so.5
#5  0x00007f86a72b770d in QThreadPool::~QThreadPool() () at
/usr/lib/libQt5Core.so.5
#6  0x00007f86a72b774a in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f86a6d5845c in __run_exit_handlers () at /usr/lib/libc.so.6
#8  0x00007f86a6d5858e in  () at /usr/lib/libc.so.6
#9  0x00007f869c5d3226 in  () at /usr/lib/libQt5XcbQpa.so.5
#10 0x00007f869c607994 in  () at /usr/lib/libQt5XcbQpa.so.5
#11 0x00007f86a24e4a2f in g_main_context_dispatch () at
/usr/lib/libglib-2.0.so.0
#12 0x00007f86a24e65e9 in  () at /usr/lib/libglib-2.0.so.0
#13 0x00007f86a24e662e in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#14 0x00007f86a74c65a9 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#15 0x00007f86a746f58c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#16 0x00007f86a7477896 in QCoreApplication::exec() () at
/usr/lib/libQt5Core.so.5
#17 0x0000563a6d08b338 in  ()
#18 0x00007f86a6d42223 in __libc_start_main () at /usr/lib/libc.so.6
#19 0x0000563a6d08bbce in _start ()
[Inferior 1 (process 32132) detached]

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