Bug 386223

Application: k3b (17.04.0)

Qt Version: 5.7.1
Frameworks Version: 5.31.0
Operating System: Linux 4.10.0-37-generic x86_64
Distribution: Ubuntu 17.04

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

I created a new audio CD project, added some mp3s and then clicked close on the project

The crash can be reproduced every time.

-- Backtrace:
Application: K3b (k3b), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fcfea5642c0 (LWP 24316))]

Thread 5 (Thread 0x7fcf89dee700 (LWP 24400)):
#0  0x00007fcfe47319f9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fcfdd81415a in g_cond_wait_until () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcfdd7a28d9 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcfdd7a2efc in g_async_queue_timeout_pop () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcfdd7f6a2d in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fcfdd7f5f65 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fcfdf2f56da in start_thread (arg=0x7fcf89dee700) at pthread_create.c:456
#7  0x00007fcfe4737d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 4 (Thread 0x7fcfbcdd7700 (LWP 24343)):
#0  0x00007fcfe46fc2ed in nanosleep () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fcfe4ecfc9d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fcfe4e29f7b in QThread::sleep(unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007fcfea0fed6d in K3b::MediaCache::PollThread::run() () at /usr/lib/x86_64-linux-gnu/libk3blib.so.7
#4  0x00007fcfe4e2ac38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fcfdf2f56da in start_thread (arg=0x7fcfbcdd7700) at pthread_create.c:456
#6  0x00007fcfe4737d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 3 (Thread 0x7fcfc74af700 (LWP 24318)):
#0  0x00007fcfe472bd8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fcfdd7ce576 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcfdd7ce68c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcfe504e0bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fcfe4ff7bea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fcfe4e25f83 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fcfe54605d5 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007fcfe4e2ac38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fcfdf2f56da in start_thread (arg=0x7fcfc74af700) at pthread_create.c:456
#9  0x00007fcfe4737d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 2 (Thread 0x7fcfd1750700 (LWP 24317)):
#0  0x00007fcfe472bd8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fcfdbf97c62 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fcfdbf998d7 in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fcfd42daef9 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fcfe4e2ac38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fcfdf2f56da in start_thread (arg=0x7fcfd1750700) at pthread_create.c:456
#6  0x00007fcfe4737d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 1 (Thread 0x7fcfea5642c0 (LWP 24316)):
[KCrash Handler]
#6  0x000000000000004c in  ()
#7  0x00007fcfe4417d14 in KFileMetaData::Extractor::~Extractor() () at /usr/lib/x86_64-linux-gnu/libKF5FileMetaData.so.3
#8  0x00007fcfe4417d39 in KFileMetaData::Extractor::~Extractor() () at /usr/lib/x86_64-linux-gnu/libKF5FileMetaData.so.3
#9  0x00007fcfe4419387 in KFileMetaData::ExtractorCollection::~ExtractorCollection() () at /usr/lib/x86_64-linux-gnu/libKF5FileMetaData.so.3
#10 0x00007fcfea1100ae in K3b::AudioDecoder::~AudioDecoder() () at /usr/lib/x86_64-linux-gnu/libk3blib.so.7
#11 0x00007fcfbeff9039 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/k3bmaddecoder.so
#12 0x00007fcfea174032 in K3b::AudioFile::~AudioFile() () at /usr/lib/x86_64-linux-gnu/libk3blib.so.7
#13 0x00007fcfea174059 in K3b::AudioFile::~AudioFile() () at /usr/lib/x86_64-linux-gnu/libk3blib.so.7
#14 0x00007fcfea165216 in K3b::AudioTrack::~AudioTrack() () at /usr/lib/x86_64-linux-gnu/libk3blib.so.7
#15 0x00007fcfea165359 in K3b::AudioTrack::~AudioTrack() () at /usr/lib/x86_64-linux-gnu/libk3blib.so.7
#16 0x00007fcfea16bc84 in K3b::AudioDoc::~AudioDoc() () at /usr/lib/x86_64-linux-gnu/libk3blib.so.7
#17 0x00007fcfea16bed9 in K3b::AudioDoc::~AudioDoc() () at /usr/lib/x86_64-linux-gnu/libk3blib.so.7
#18 0x0000557e7e0afd04 in  ()
#19 0x00007fcfe88363e5 in KMainWindow::closeEvent(QCloseEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#20 0x00007fcfe5fa2918 in QWidget::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007fcfe60a1abb in QMainWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007fcfe8836637 in KMainWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#23 0x00007fcfe887bdd5 in KXmlGuiWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#24 0x00007fcfe5f5b35c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007fcfe5f62b21 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007fcfe4ff9c00 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007fcfe5f9df31 in QWidgetPrivate::close_helper(QWidgetPrivate::CloseMode) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#28 0x00007fcfe5fbc676 in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#29 0x00007fcfe5fbf723 in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#30 0x00007fcfe5f5b35c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#31 0x00007fcfe5f62b21 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#32 0x00007fcfe4ff9c00 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#33 0x00007fcfe57c57ec in QGuiApplicationPrivate::processCloseEvent(QWindowSystemInterfacePrivate::CloseEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#34 0x00007fcfe57ca2c5 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#35 0x00007fcfe57a822b in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#36 0x00007fcfd43116d0 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#37 0x00007fcfdd7ce377 in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007fcfdd7ce5e0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#39 0x00007fcfdd7ce68c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#40 0x00007fcfe504e09f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#41 0x00007fcfe4ff7bea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#42 0x00007fcfe500033c in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#43 0x0000557e7e08ee5c in  ()
#44 0x00007fcfe464f3f1 in __libc_start_main (main=0x557e7e08d900, argc=1, argv=0x7ffeafa9e028, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffeafa9e018) at ../csu/libc-start.c:291
#45 0x0000557e7e08f04a in _start ()

Reported using DrKonqi