Bug 361532

Summary: Deleting a track causes crash
Product: [Applications] kdenlive Reporter: Ovidiu-Florin BOGDAN <kde.kfoar>
Component: User Interface & MiscellaneousAssignee: Jean-Baptiste Mardelle <jb>
Status: RESOLVED FIXED    
Severity: crash Keywords: drkonqi
Priority: HI    
Version: unspecified   
Target Milestone: ---   
Platform: unspecified   
OS: Linux   
Latest Commit: http://commits.kde.org/kdenlive/f30eb161e2482b355ad72810703bba7eb07e7de8 Version Fixed In:
Sentry Crash Report:
Attachments: Project file that I used
project file that causes a crash if first track is deleted

Description Ovidiu-Florin BOGDAN 2016-04-08 20:19:16 UTC 
Application: kdenlive (16.07.70)

Qt Version: 5.5.1
Operating System: Linux 4.2.0-35-generic x86_64
Distribution: Ubuntu 15.10

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

* Opened a project;
* File -> Save as... -> choose other existing project file -> overwrite
* check to see that I have the new project file open
* delete first track

I'm using the master kdenlive ppa for Kubuntu.

The crash can be reproduced every time.

-- Backtrace:
Application: Kdenlive (kdenlive), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fc002a09800 (LWP 10284))]

Thread 47 (Thread 0x7fc000192700 (LWP 10285)):
#0  0x00007fc00dfc588d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fc008ee9bd2 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fc008eeb74f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fc0024df7e9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fc00e9c3a6e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fc00cbae6aa in start_thread (arg=0x7fc000192700) at pthread_create.c:333
#6  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 46 (Thread 0x7fbfde5fc700 (LWP 10286)):
#0  0x00007fc00dfc588d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fbfe652b12c in ?? () from /lib/x86_64-linux-gnu/libusb-1.0.so.0
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbfde5fc700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 45 (Thread 0x7fbfd9ce3700 (LWP 10287)):
#0  0x00007fc00ebfa884 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007fc00b1a577d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc00b1a611b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc00b1a62fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc00ebfb50b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fc00eba250a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fc00e9beac4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fc00f772c35 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fc00e9c3a6e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fc00cbae6aa in start_thread (arg=0x7fbfd9ce3700) at pthread_create.c:333
#10 0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 44 (Thread 0x7fbfd8ce2700 (LWP 10288)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007fc00e9c4c46 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fc00e9c06f3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007fc00e9c3a6e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fc00cbae6aa in start_thread (arg=0x7fbfd8ce2700) at pthread_create.c:333
#5  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 43 (Thread 0x7fbfd3fff700 (LWP 10289)):
#0  0x00007fc00dfc588d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fc00b1a61ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc00b1a62fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc00ebfb50b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fc00eba250a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fc00e9beac4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fc00f772c35 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fc00e9c3a6e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fc00cbae6aa in start_thread (arg=0x7fbfd3fff700) at pthread_create.c:333
#9  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 42 (Thread 0x7fbfd155f700 (LWP 10293)):
#0  0x00007fc00dfc588d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fc00b1a61ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc00b1a62fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc00ebfb50b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fc00eba250a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fc00e9beac4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fc00e9c3a6e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fc00cbae6aa in start_thread (arg=0x7fbfd155f700) at pthread_create.c:333
#8  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 41 (Thread 0x7fbfbbfff700 (LWP 10295)):
#0  0x00007fc00dfc144d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fc00b1e94e0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc00b1a5cd4 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc00b1a6190 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc00b1a62fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fc00ebfb50b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fc00eba250a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fc00e9beac4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fc00e9c3a6e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fc00cbae6aa in start_thread (arg=0x7fbfbbfff700) at pthread_create.c:333
#10 0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 40 (Thread 0x7fbfd2665700 (LWP 10300)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff166aa1b in ?? () from /usr/lib/x86_64-linux-gnu/libavfilter-ffmpeg.so.5
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbfd2665700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 39 (Thread 0x7fbfb3fff700 (LWP 10301)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff166aa1b in ?? () from /usr/lib/x86_64-linux-gnu/libavfilter-ffmpeg.so.5
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbfb3fff700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 38 (Thread 0x7fbfb37fe700 (LWP 10302)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff166aa1b in ?? () from /usr/lib/x86_64-linux-gnu/libavfilter-ffmpeg.so.5
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbfb37fe700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 37 (Thread 0x7fbfb2ffd700 (LWP 10303)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff166aa1b in ?? () from /usr/lib/x86_64-linux-gnu/libavfilter-ffmpeg.so.5
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbfb2ffd700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 36 (Thread 0x7fbfb27fc700 (LWP 10304)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff166aa1b in ?? () from /usr/lib/x86_64-linux-gnu/libavfilter-ffmpeg.so.5
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbfb27fc700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 35 (Thread 0x7fbfb1ffb700 (LWP 10305)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff166aa1b in ?? () from /usr/lib/x86_64-linux-gnu/libavfilter-ffmpeg.so.5
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbfb1ffb700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 34 (Thread 0x7fbfb17fa700 (LWP 10306)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff166aa1b in ?? () from /usr/lib/x86_64-linux-gnu/libavfilter-ffmpeg.so.5
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbfb17fa700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 33 (Thread 0x7fbfb0ff9700 (LWP 10307)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff166aa1b in ?? () from /usr/lib/x86_64-linux-gnu/libavfilter-ffmpeg.so.5
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbfb0ff9700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 32 (Thread 0x7fbf9ffff700 (LWP 10308)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff166aa1b in ?? () from /usr/lib/x86_64-linux-gnu/libavfilter-ffmpeg.so.5
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbf9ffff700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 31 (Thread 0x7fbf9f7fe700 (LWP 10309)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff293105e in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbf9f7fe700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 30 (Thread 0x7fbf9effd700 (LWP 10310)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff293105e in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbf9effd700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 29 (Thread 0x7fbf9e7fc700 (LWP 10311)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff293105e in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbf9e7fc700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 28 (Thread 0x7fbf9dffb700 (LWP 10312)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff293105e in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbf9dffb700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 27 (Thread 0x7fbf9d7fa700 (LWP 10313)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff293105e in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbf9d7fa700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 26 (Thread 0x7fbf9cff9700 (LWP 10314)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff293105e in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbf9cff9700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 25 (Thread 0x7fbf9c7f8700 (LWP 10315)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff293105e in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbf9c7f8700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 24 (Thread 0x7fbf9bff7700 (LWP 10316)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff293105e in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbf9bff7700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 23 (Thread 0x7fbf9b7f6700 (LWP 10317)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff293105e in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbf9b7f6700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 22 (Thread 0x7fbf9aff5700 (LWP 10336)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbfdd9f166f in ?? () from /usr/lib/x86_64-linux-gnu/mlt/libmltsdl.so
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbf9aff5700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 21 (Thread 0x7fbfd0d5e700 (LWP 10337)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fc013b64c63 in ?? () from /usr/lib/x86_64-linux-gnu/libmlt.so.6
#2  0x00000000007a292d in RenderThread::run (this=0x7fbfa2e28280) at ../../src/monitor/glwidget.cpp:1236
#3  0x00007fc00e9c3a6e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fc00cbae6aa in start_thread (arg=0x7fbfd0d5e700) at pthread_create.c:333
#5  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 20 (Thread 0x7fbfbb7fe700 (LWP 10338)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff293105e in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbfbb7fe700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 19 (Thread 0x7fbf6a6ba700 (LWP 10339)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff293105e in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbf6a6ba700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7fbf992b0700 (LWP 10340)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff293105e in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbf992b0700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7fbf73fff700 (LWP 10341)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff293105e in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbf73fff700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7fbf737fe700 (LWP 10342)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff293105e in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbf737fe700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7fbf72ffd700 (LWP 10343)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff293105e in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbf72ffd700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7fbf727fc700 (LWP 10344)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff293105e in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbf727fc700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7fbf71ffb700 (LWP 10345)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff293105e in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbf71ffb700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7fbf717fa700 (LWP 10346)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff293105e in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbf717fa700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7fbf70ff9700 (LWP 10347)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff293105e in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbf70ff9700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7fbf6b732700 (LWP 10348)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff293105e in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbf6b732700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7fbf69eb9700 (LWP 10349)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff293105e in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbf69eb9700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7fbf694ab700 (LWP 10350)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff293105e in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbf694ab700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7fbf68caa700 (LWP 10351)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff293105e in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbf68caa700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7fbf63fff700 (LWP 10352)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff293105e in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbf63fff700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7fbf637fe700 (LWP 10353)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff293105e in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbf637fe700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fbf62ffd700 (LWP 10354)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff293105e in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbf62ffd700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fbf627fc700 (LWP 10355)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbff293105e in ?? () from /usr/lib/x86_64-linux-gnu/libavcodec-ffmpeg.so.56
#2  0x00007fc00cbae6aa in start_thread (arg=0x7fbf627fc700) at pthread_create.c:333
#3  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fbf61ffb700 (LWP 10356)):
#0  0x00007fc00dfc5951 in __GI_ppoll (fds=0x7fbfac4de5f0, nfds=2, timeout=<optimized out>, sigmask=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:56
#1  0x00007fc00932ac8d in pa_mainloop_poll () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#2  0x00007fc00932b27e in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007fbfec393dfb in ?? () from /usr/lib/x86_64-linux-gnu/libSDL-1.2.so.0
#4  0x00007fbfec367910 in ?? () from /usr/lib/x86_64-linux-gnu/libSDL-1.2.so.0
#5  0x00007fbfec36ff48 in ?? () from /usr/lib/x86_64-linux-gnu/libSDL-1.2.so.0
#6  0x00007fbfec3afd79 in ?? () from /usr/lib/x86_64-linux-gnu/libSDL-1.2.so.0
#7  0x00007fc00cbae6aa in start_thread (arg=0x7fbf61ffb700) at pthread_create.c:333
#8  0x00007fc00dfd0e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fc002a09800 (LWP 10284)):
[KCrash Handler]
#6  HeaderTrack::setSelectedIndex (this=0x200000001, ix=6) at ../../src/timeline/headertrack.cpp:217
#7  0x0000000000646900 in Timeline::updatePalette (this=this@entry=0x4bf7e10) at ../../src/timeline/timeline.cpp:857
#8  0x00000000006471e5 in Timeline::getTracks (this=0x4bf7e10) at ../../src/timeline/timeline.cpp:298
#9  0x0000000000608189 in CustomTrackView::reloadTimeline (this=this@entry=0x4f59f50) at ../../src/timeline/customtrackview.cpp:3283
#10 0x00000000006132bc in CustomTrackView::removeTrack (this=<optimized out>, ix=6) at ../../src/timeline/customtrackview.cpp:3349
#11 0x00007fc0104e7e9e in QUndoCommand::redo() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007fc0104e9ad8 in QUndoStack::push(QUndoCommand*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#13 0x00000000006188d9 in CustomTrackView::deleteTimelineTrack (this=0x4f59f50, ix=<optimized out>, trackinfo=...) at ../../src/timeline/customtrackview.cpp:6811
#14 0x0000000000618e26 in CustomTrackView::slotDeleteTrack (this=0x4f59f50, ix=ix@entry=6) at ../../src/timeline/customtrackview.cpp:6713
#15 0x000000000089257d in MainWindow::slotDeleteTrack (this=0x29f2d90) at ../../src/mainwindow.cpp:2143
#16 0x00007fc00ebd3777 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007fc010153d92 in QAction::triggered(bool) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007fc010156218 in QAction::activate(QAction::ActionEvent) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x00007fc0102d8ba2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x00007fc0102dee6c in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007fc0102e2d70 in QMenu::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007fc0101a09f8 in QWidget::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#23 0x00007fc0102e37b3 in QMenu::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#24 0x00007fc01015d9dc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007fc0101635a9 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007fc00eba4d7b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007fc0101624b2 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#28 0x00007fc0101bb2cd in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#29 0x00007fc0101bd52b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#30 0x00007fc01015d9dc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#31 0x00007fc010162ea6 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#32 0x00007fc00eba4d7b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#33 0x00007fc00eee75f1 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#34 0x00007fc00eee92b5 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#35 0x00007fc00eecd228 in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#36 0x00007fc0025110b0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#37 0x00007fc00b1a5ff7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007fc00b1a6250 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#39 0x00007fc00b1a62fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#40 0x00007fc00ebfb4ef in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#41 0x00007fc00eba250a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#42 0x00007fc0102ddbb0 in QMenu::exec(QPoint const&, QAction*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#43 0x00007fc0102ddd21 in QMenu::exec(QList<QAction*>, QPoint const&, QAction*, QWidget*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#44 0x00007fc0101a13d0 in QWidget::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#45 0x00007fc01015d9dc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#46 0x00007fc01016395c in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#47 0x00007fc00eba4d7b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#48 0x00007fc0101bb0a2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#49 0x00007fc0101bd52b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#50 0x00007fc01015d9dc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#51 0x00007fc010162ea6 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#52 0x00007fc00eba4d7b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#53 0x00007fc00eee75f1 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#54 0x00007fc00eee92b5 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#55 0x00007fc00eecd228 in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#56 0x00007fc0025110b0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#57 0x00007fc00b1a5ff7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#58 0x00007fc00b1a6250 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#59 0x00007fc00b1a62fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#60 0x00007fc00ebfb4ef in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#61 0x00007fc00eba250a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#62 0x00007fc00ebaa5ec in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#63 0x000000000053949a in main (argc=1, argv=<optimized out>) at ../../src/main.cpp:130

Reported using DrKonqi
Comment 1 Ovidiu-Florin BOGDAN 2016-04-08 20:24:23 UTC 
Created attachment 98296 [details]
Project file that I used
Comment 2 Ovidiu-Florin BOGDAN 2016-04-08 20:28:33 UTC 
Created attachment 98297 [details]
project file that causes a crash if first track is deleted
Comment 3 Jean-Baptiste Mardelle 2016-04-08 20:41:45 UTC 
Git commit f30eb161e2482b355ad72810703bba7eb07e7de8 by Jean-Baptiste Mardelle.
Committed on 08/04/2016 at 20:41.
Pushed by mardelle into branch 'Applications/16.04'.

Fix crash on track deletion

M  +3    -2    src/timeline/customtrackview.cpp
M  +3    -1    src/timeline/timeline.cpp

http://commits.kde.org/kdenlive/f30eb161e2482b355ad72810703bba7eb07e7de8
Comment 4 Jean-Baptiste Mardelle 2016-04-08 20:58:51 UTC 
Git commit 07ba26d6ce812ead4e04c18a7a1bd099e3385db9 by Jean-Baptiste Mardelle.
Committed on 08/04/2016 at 20:58.
Pushed by mardelle into branch 'Applications/16.04'.

Fix crash on undo add track

M  +4    -4    src/timeline/customtrackview.cpp

http://commits.kde.org/kdenlive/07ba26d6ce812ead4e04c18a7a1bd099e3385db9