Kdenlive SIGSEGV on startup

[Johannes Bauer]

Hi list,

I've just installed kdenlive on a separate machine, also Ubuntu Artful
x86_64. Clean install from sources:

eigen: 3.2.4.tar.gz (MD5 4d0d77e06f)
FFmpeg: git n3.5-dev-2729-g53937c4371
frei0r: git v1.6.1-9-g2479e75560
kdenlive: git v17.12.3
lame: lame-3.99.5.tar.gz (MD5 84835b313d)
libepoxy: git 1.5.0-12-g74dbb7bac9
liboil: liboil-0.3.17.tar.gz (MD5 47dc734f82)
libvpx: git v1.7.0-234-g4127799a91
mlt: git v6.6.0
movit: git 1.6.2
swfdec: git de1eef41a1
vid.stab: git v1.1.0-3-gafc8ea9fb0
x264: git 7d0ff22e8c
x265: x265_2.7.tar.gz (MD5 b0d7d20da2)

On starting kdenlive, it instantly segfaults:

$ kdenlive
org.kde.multimedia.kdenlive: // TRACTOR PROBLEM colour
org.kde.multimedia.kdenlive: // TRACTOR PROBLEM
Segmentation fault (core dumped)

Stacktrace in gdb:

(gdb) bt
#0  0x000055555579ca58 in Timeline::getTracks() ()
#1  0x000055555579f7fe in Timeline::parseDocument(QDomDocument const&) ()
#2  0x000055555579b509 in Timeline::loadTimeline() ()
#3  0x00005555556de910 in ProjectManager::newFile(bool, bool) ()
#4  0x00005555556dce65 in ProjectManager::slotLoadOnOpen() ()
#5  0x00005555556e60fc in
QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>,
void, void (ProjectManager::*)()>::call(void (ProjectManager::*)(),
ProjectManager*, void**) ()
#6  0x00005555556e5dd1 in void QtPrivate::FunctionPointer<void
(ProjectManager::*)()>::call<QtPrivate::List<>, void>(void
(ProjectManager::*)(), ProjectManager*, void**) ()
#7  0x00005555556e578d in QtPrivate::QSlotObject<void
(ProjectManager::*)(), QtPrivate::List<>, void>::impl(int,
QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) ()
#8  0x00007ffff1173464 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007ffff116740b in QObject::event(QEvent*) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007ffff31f446c in QApplicationPrivate::notify_helper(QObject*,
QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007ffff31fbd34 in QApplication::notify(QObject*, QEvent*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007ffff1137de8 in QCoreApplication::notifyInternal2(QObject*,
QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007ffff118f91e in QTimerInfoList::activateTimers() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007ffff11900e1 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007fffeb978fb7 in g_main_context_dispatch () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007fffeb9791f0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007fffeb97927c in g_main_context_iteration () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007ffff119047f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007ffff1135e3a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007ffff113eda4 in QCoreApplication::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x0000555555b0095e in main ()


Does anyone know why this happens? Thanks so much.

Best regards,
Johannes