Bug 357448

Summary: Amarok crashes when searching for tags on MusicBrainz
Product: [Applications] amarok Reporter: Janne Mareike Koschinski <janne>
Component: generalAssignee: Amarok Developers <amarok-bugs-dist>
Status: RESOLVED DUPLICATE    
Severity: crash CC: dog.mixer, janne
Priority: NOR Keywords: drkonqi
Version: 2.8.0   
Target Milestone: 2.9   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: New crash information added by DrKonqi
New crash information added by DrKonqi

Description Janne Mareike Koschinski 2016-01-02 21:46:01 UTC 
Application: amarok (2.8.0)
KDE Platform Version: 4.14.15
Qt Version: 4.8.7
Operating System: Linux 4.2.5-1-ARCH x86_64
Distribution: "Arch Linux"

-- Information about the crash:
How to reproduce:

- Right-click on album "Edit Properties"
- Go to tab "Tags"
- Click "Search for Tags on MusicBrainz"
- It will search for a while
- It displays them


What should happen:

- You can select a found tag to apply


What happens:

- The program crashes


Additional Information:

- It happens every time
- It always ends up in this very same backtrace
- I am on ARCH Linux with the latest updates

The crash can be reproduced every time.

-- Backtrace:
Application: Amarok (amarok), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fcdbe7bc900 (LWP 9947))]

Thread 17 (Thread 0x7fcd92765700 (LWP 9949)):
#0  0x00007fcda781d28a in  () at /usr/lib/pulseaudio/libpulsecommon-7.1.so
#1  0x00007fcda781dc9e in pa_fdsem_before_poll () at /usr/lib/pulseaudio/libpulsecommon-7.1.so
#2  0x00007fcda78346a7 in  () at /usr/lib/pulseaudio/libpulsecommon-7.1.so
#3  0x00007fcdb2aa7817 in pa_mainloop_dispatch () at /usr/lib/libpulse.so.0
#4  0x00007fcdb2aa7c1c in pa_mainloop_iterate () at /usr/lib/libpulse.so.0
#5  0x00007fcdb2aa7cc0 in pa_mainloop_run () at /usr/lib/libpulse.so.0
#6  0x00007fcdb2ab5ee6 in  () at /usr/lib/libpulse.so.0
#7  0x00007fcda78445f8 in  () at /usr/lib/pulseaudio/libpulsecommon-7.1.so
#8  0x00007fcdb9eea4a4 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fcdbb37613d in clone () at /usr/lib/libc.so.6

Thread 16 (Thread 0x7fcd78805700 (LWP 9950)):
#0  0x00007fcdb9ef0428 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fcd82e76bf2 in  () at /usr/lib/libmysqld.so.18
#2  0x00007fcd82e6eb78 in  () at /usr/lib/libmysqld.so.18
#3  0x00007fcdb9eea4a4 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fcdbb37613d in clone () at /usr/lib/libc.so.6

Thread 15 (Thread 0x7fcd73fff700 (LWP 9951)):
#0  0x00007fcdbb341f3b in __getdents64 () at /usr/lib/libc.so.6
#1  0x00007fcdbb341cae in readdir_r () at /usr/lib/libc.so.6
#2  0x00007fcdbbb2c3d3 in  () at /usr/lib/libQtCore.so.4
#3  0x00007fcdbbacb58e in  () at /usr/lib/libQtCore.so.4
#4  0x00007fcdbbacbdc8 in  () at /usr/lib/libQtCore.so.4
#5  0x00007fcdbbacc789 in QDirIterator::QDirIterator(QString const&, QStringList const&, QFlags<QDir::Filter>, QFlags<QDirIterator::IteratorFlag>) () at /usr/lib/libQtCore.so.4
#6  0x00007fcdbbac5fba in QDir::entryInfoList(QStringList const&, QFlags<QDir::Filter>, QFlags<QDir::SortFlag>) const () at /usr/lib/libQtCore.so.4
#7  0x00007fcdbbac6637 in QDir::entryInfoList(QFlags<QDir::Filter>, QFlags<QDir::SortFlag>) const () at /usr/lib/libQtCore.so.4
#8  0x00007fcdbcd10eb4 in  () at /usr/lib/libkdecore.so.5
#9  0x00007fcdbcd10f15 in  () at /usr/lib/libkdecore.so.5
#10 0x00007fcdbcd1391b in KDirWatch::addDir(QString const&, QFlags<KDirWatch::WatchMode>) () at /usr/lib/libkdecore.so.5
#11 0x00007fcdbe125c42 in AbstractDirectoryWatcher::run() () at /usr/lib/libamaroklib.so.1
#12 0x00007fcdb72ea9b2 in  () at /usr/lib/libthreadweaver.so.4
#13 0x00007fcdb72eabbe in ThreadWeaver::Job::execute(ThreadWeaver::Thread*) () at /usr/lib/libthreadweaver.so.4
#14 0x00007fcdb72ea28b in ThreadWeaver::Thread::run() () at /usr/lib/libthreadweaver.so.4
#15 0x00007fcdbba3f14c in  () at /usr/lib/libQtCore.so.4
#16 0x00007fcdb9eea4a4 in start_thread () at /usr/lib/libpthread.so.0
#17 0x00007fcdbb37613d in clone () at /usr/lib/libc.so.6

Thread 14 (Thread 0x7fcd737fe700 (LWP 9952)):
#0  0x00007fcdb3aea644 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007fcdb3aa5e6d in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fcdb3aa60cc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fcdbbb7f8be in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQtCore.so.4
#4  0x00007fcdbbb4ddc1 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQtCore.so.4
#5  0x00007fcdbbb4e135 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQtCore.so.4
#6  0x00007fcdbba3c859 in QThread::exec() () at /usr/lib/libQtCore.so.4
#7  0x00007fcdbbb2df13 in  () at /usr/lib/libQtCore.so.4
#8  0x00007fcdbba3f14c in  () at /usr/lib/libQtCore.so.4
#9  0x00007fcdb9eea4a4 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007fcdbb37613d in clone () at /usr/lib/libc.so.6

Thread 13 (Thread 0x7fcd72f47700 (LWP 9953)):
#0  0x00007fcdb9ef007f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fcdbba3f6b6 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQtCore.so.4
#2  0x00007fcdb72e898c in  () at /usr/lib/libthreadweaver.so.4
#3  0x00007fcdb72eb693 in  () at /usr/lib/libthreadweaver.so.4
#4  0x00007fcdb72ea1ef in ThreadWeaver::Thread::run() () at /usr/lib/libthreadweaver.so.4
#5  0x00007fcdbba3f14c in  () at /usr/lib/libQtCore.so.4
#6  0x00007fcdb9eea4a4 in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007fcdbb37613d in clone () at /usr/lib/libc.so.6

Thread 12 (Thread 0x7fcd72746700 (LWP 9954)):
#0  0x00007fcdb9ef007f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fcdbba3f6b6 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQtCore.so.4
#2  0x00007fcdb72e898c in  () at /usr/lib/libthreadweaver.so.4
#3  0x00007fcdb72eb693 in  () at /usr/lib/libthreadweaver.so.4
#4  0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#5  0x00007fcdb72ea1ef in ThreadWeaver::Thread::run() () at /usr/lib/libthreadweaver.so.4
#6  0x00007fcdbba3f14c in  () at /usr/lib/libQtCore.so.4
#7  0x00007fcdb9eea4a4 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007fcdbb37613d in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7fcd71f45700 (LWP 9955)):
#0  0x00007fcdb9ef007f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fcdbba3f6b6 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQtCore.so.4
#2  0x00007fcdb72e898c in  () at /usr/lib/libthreadweaver.so.4
#3  0x00007fcdb72eb693 in  () at /usr/lib/libthreadweaver.so.4
#4  0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#5  0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#6  0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#7  0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#8  0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#9  0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#10 0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#11 0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#12 0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#13 0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#14 0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#15 0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#16 0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#17 0x00007fcdb72ea1ef in ThreadWeaver::Thread::run() () at /usr/lib/libthreadweaver.so.4
#18 0x00007fcdbba3f14c in  () at /usr/lib/libQtCore.so.4
#19 0x00007fcdb9eea4a4 in start_thread () at /usr/lib/libpthread.so.0
#20 0x00007fcdbb37613d in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7fcd71744700 (LWP 9956)):
#0  0x00007fcdb9ef007f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fcdbba3f6b6 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQtCore.so.4
#2  0x00007fcdb72e898c in  () at /usr/lib/libthreadweaver.so.4
#3  0x00007fcdb72eb693 in  () at /usr/lib/libthreadweaver.so.4
#4  0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#5  0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#6  0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#7  0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#8  0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#9  0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#10 0x00007fcdb72ea1ef in ThreadWeaver::Thread::run() () at /usr/lib/libthreadweaver.so.4
#11 0x00007fcdbba3f14c in  () at /usr/lib/libQtCore.so.4
#12 0x00007fcdb9eea4a4 in start_thread () at /usr/lib/libpthread.so.0
#13 0x00007fcdbb37613d in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7fcd70f43700 (LWP 9957)):
#0  0x00007fcdb9ef007f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fcdbba3f6b6 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQtCore.so.4
#2  0x00007fcdb72e898c in  () at /usr/lib/libthreadweaver.so.4
#3  0x00007fcdb72eb693 in  () at /usr/lib/libthreadweaver.so.4
#4  0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#5  0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#6  0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#7  0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#8  0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#9  0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#10 0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#11 0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#12 0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#13 0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#14 0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#15 0x00007fcdb72ea1ef in ThreadWeaver::Thread::run() () at /usr/lib/libthreadweaver.so.4
#16 0x00007fcdbba3f14c in  () at /usr/lib/libQtCore.so.4
#17 0x00007fcdb9eea4a4 in start_thread () at /usr/lib/libpthread.so.0
#18 0x00007fcdbb37613d in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7fcd5bfff700 (LWP 9958)):
#0  0x00007fcdb9ef007f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fcdbba3f6b6 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQtCore.so.4
#2  0x00007fcdb72e898c in  () at /usr/lib/libthreadweaver.so.4
#3  0x00007fcdb72eb693 in  () at /usr/lib/libthreadweaver.so.4
#4  0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#5  0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#6  0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#7  0x00007fcdb72ea1ef in ThreadWeaver::Thread::run() () at /usr/lib/libthreadweaver.so.4
#8  0x00007fcdbba3f14c in  () at /usr/lib/libQtCore.so.4
#9  0x00007fcdb9eea4a4 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007fcdbb37613d in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7fcd5b7fe700 (LWP 9959)):
#0  0x00007fcdb9ef007f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fcdbba3f6b6 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQtCore.so.4
#2  0x00007fcdb72e898c in  () at /usr/lib/libthreadweaver.so.4
#3  0x00007fcdb72eb693 in  () at /usr/lib/libthreadweaver.so.4
#4  0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#5  0x00007fcdb72eb6ac in  () at /usr/lib/libthreadweaver.so.4
#6  0x00007fcdb72ea1ef in ThreadWeaver::Thread::run() () at /usr/lib/libthreadweaver.so.4
#7  0x00007fcdbba3f14c in  () at /usr/lib/libQtCore.so.4
#8  0x00007fcdb9eea4a4 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fcdbb37613d in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7fcd5ada8700 (LWP 9960)):
#0  0x00007fcdb3aea644 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007fcdb3aa60d6 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#2  0x00007fcdbbb7f8be in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQtCore.so.4
#3  0x00007fcdbbb4ddc1 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQtCore.so.4
#4  0x00007fcdbbb4e135 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQtCore.so.4
#5  0x00007fcdbba3c859 in QThread::exec() () at /usr/lib/libQtCore.so.4
#6  0x00007fcdbbb2df13 in  () at /usr/lib/libQtCore.so.4
#7  0x00007fcdbba3f14c in  () at /usr/lib/libQtCore.so.4
#8  0x00007fcdb9eea4a4 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fcdbb37613d in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7fcd59d46700 (LWP 9962)):
#0  0x00007fcdb9ef007f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fcdb1bb21dd in  () at /usr/lib/libQtWebKit.so.4
#2  0x00007fcdb1bb2239 in  () at /usr/lib/libQtWebKit.so.4
#3  0x00007fcdb9eea4a4 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fcdbb37613d in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7fcd4f7fe700 (LWP 9965)):
#0  0x00007fcdb3aea644 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007fcdb3aa5829 in g_main_context_query () at /usr/lib/libglib-2.0.so.0
#2  0x00007fcdb3aa5f37 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007fcdb3aa60cc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007fcdbbb7f8be in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQtCore.so.4
#5  0x00007fcdbbb4ddc1 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQtCore.so.4
#6  0x00007fcdbbb4e135 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQtCore.so.4
#7  0x00007fcdbba3c859 in QThread::exec() () at /usr/lib/libQtCore.so.4
#8  0x00007fcdbba3f14c in  () at /usr/lib/libQtCore.so.4
#9  0x00007fcdb9eea4a4 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007fcdbb37613d in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7fcd4effd700 (LWP 9966)):
#0  0x00007fcdb9ef007f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fcdba4e1cca in  () at /usr/lib/libQtScript.so.4
#2  0x00007fcdba4e1cf9 in  () at /usr/lib/libQtScript.so.4
#3  0x00007fcdb9eea4a4 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fcdbb37613d in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7fcd4ffff700 (LWP 10403)):
#0  0x00007fcdbb36d18d in poll () at /usr/lib/libc.so.6
#1  0x00007fcdb3aa5fbc in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fcdb3aa60cc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fcdbbb7f8be in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQtCore.so.4
#4  0x00007fcdbbb4ddc1 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQtCore.so.4
#5  0x00007fcdbbb4e135 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQtCore.so.4
#6  0x00007fcdbba3c859 in QThread::exec() () at /usr/lib/libQtCore.so.4
#7  0x00007fcdbbb2df13 in  () at /usr/lib/libQtCore.so.4
#8  0x00007fcdbba3f14c in  () at /usr/lib/libQtCore.so.4
#9  0x00007fcdb9eea4a4 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007fcdbb37613d in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7fcdbe7bc900 (LWP 9947)):
[KCrash Handler]
#6  0x00007fcdbba3a971 in QReadWriteLock::lockForRead() () at /usr/lib/libQtCore.so.4
#7  0x00007fcdbe2c02a0 in  () at /usr/lib/libamaroklib.so.1
#8  0x00007fcdbe2c7fec in  () at /usr/lib/libamaroklib.so.1
#9  0x00007fcdbc67b84b in QSortFilterProxyModel::flags(QModelIndex const&) const () at /usr/lib/libQtGui.so.4
#10 0x00007fcdbc635bcb in QTreeView::drawRow(QPainter*, QStyleOptionViewItem const&, QModelIndex const&) const () at /usr/lib/libQtGui.so.4
#11 0x00007fcdbc639278 in QTreeView::drawTree(QPainter*, QRegion const&) const () at /usr/lib/libQtGui.so.4
#12 0x00007fcdbc63cf16 in QTreeView::paintEvent(QPaintEvent*) () at /usr/lib/libQtGui.so.4
#13 0x00007fcdbc113c10 in QWidget::event(QEvent*) () at /usr/lib/libQtGui.so.4
#14 0x00007fcdbc4d980e in QFrame::event(QEvent*) () at /usr/lib/libQtGui.so.4
#15 0x00007fcdbc5ff283 in QAbstractItemView::viewportEvent(QEvent*) () at /usr/lib/libQtGui.so.4
#16 0x00007fcdbc640c9c in QTreeView::viewportEvent(QEvent*) () at /usr/lib/libQtGui.so.4
#17 0x00007fcdbbb4f6b6 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () at /usr/lib/libQtCore.so.4
#18 0x00007fcdbc0bd37c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQtGui.so.4
#19 0x00007fcdbc0c41f6 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQtGui.so.4
#20 0x00007fcdbd33b8aa in KApplication::notify(QObject*, QEvent*) () at /usr/lib/libkdeui.so.5
#21 0x00007fcdbbb4f54d in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib/libQtCore.so.4
#22 0x00007fcdbc10e267 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /usr/lib/libQtGui.so.4
#23 0x00007fcdbc10ec7f in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /usr/lib/libQtGui.so.4
#24 0x00007fcdbc10eb83 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /usr/lib/libQtGui.so.4
#25 0x00007fcdbc10eb83 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /usr/lib/libQtGui.so.4
#26 0x00007fcdbc10eb83 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /usr/lib/libQtGui.so.4
#27 0x00007fcdbc10eb83 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /usr/lib/libQtGui.so.4
#28 0x00007fcdbc10eb83 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /usr/lib/libQtGui.so.4
#29 0x00007fcdbc10ddf6 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /usr/lib/libQtGui.so.4
#30 0x00007fcdbc10ec7f in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /usr/lib/libQtGui.so.4
#31 0x00007fcdbc10eb83 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /usr/lib/libQtGui.so.4
#32 0x00007fcdbc10eb83 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /usr/lib/libQtGui.so.4
#33 0x00007fcdbc10ddf6 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /usr/lib/libQtGui.so.4
#34 0x00007fcdbc10ec7f in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /usr/lib/libQtGui.so.4
#35 0x00007fcdbc10ddf6 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () at /usr/lib/libQtGui.so.4
#36 0x00007fcdbc2deaa2 in  () at /usr/lib/libQtGui.so.4
#37 0x00007fcdbc100f80 in QWidgetPrivate::syncBackingStore() () at /usr/lib/libQtGui.so.4
#38 0x00007fcdbc113cf8 in QWidget::event(QEvent*) () at /usr/lib/libQtGui.so.4
#39 0x00007fcdbc0bd39c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQtGui.so.4
#40 0x00007fcdbc0c41f6 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQtGui.so.4
#41 0x00007fcdbd33b8aa in KApplication::notify(QObject*, QEvent*) () at /usr/lib/libkdeui.so.5
#42 0x00007fcdbbb4f54d in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib/libQtCore.so.4
#43 0x00007fcdbbb529d6 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/libQtCore.so.4
#44 0x00007fcdbbb7f72e in  () at /usr/lib/libQtCore.so.4
#45 0x00007fcdb3aa5dc7 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#46 0x00007fcdb3aa6020 in  () at /usr/lib/libglib-2.0.so.0
#47 0x00007fcdb3aa60cc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#48 0x00007fcdbbb7f89e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQtCore.so.4
#49 0x00007fcdbc166416 in  () at /usr/lib/libQtGui.so.4
#50 0x00007fcdbbb4ddc1 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQtCore.so.4
#51 0x00007fcdbbb4e135 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQtCore.so.4
#52 0x00007fcdbbb53ad9 in QCoreApplication::exec() () at /usr/lib/libQtCore.so.4
#53 0x000000000040868d in  ()
#54 0x00007fcdbb2ad610 in __libc_start_main () at /usr/lib/libc.so.6
#55 0x000000000040a2b9 in _start ()

Reported using DrKonqi
Comment 1 Max 2016-01-03 19:02:43 UTC 
Created attachment 96430 [details]
New crash information added by DrKonqi

amarok (2.8.0) on KDE Platform 4.14.9 using Qt 4.8.6

- What I was doing when the application crashed:
Search tags wim Music Brantz
1st - normal
2 trying - crash

-- Backtrace (Reduced):
#5  0x00007f73d498f611 in QReadWriteLock::lockForRead() () from /usr/lib64/libQtCore.so.4
[...]
#8  0x00007f73d554a5fb in QSortFilterProxyModel::flags(QModelIndex const&) const () from /usr/lib64/libQtGui.so.4
#9  0x00007f73d550a471 in QTreeView::drawRow(QPainter*, QStyleOptionViewItem const&, QModelIndex const&) const () from /usr/lib64/libQtGui.so.4
#10 0x00007f73d550d562 in QTreeView::drawTree(QPainter*, QRegion const&) const () from /usr/lib64/libQtGui.so.4
#11 0x00007f73d5510d0c in QTreeView::paintEvent(QPaintEvent*) () from /usr/lib64/libQtGui.so.4
Comment 2 Max 2016-01-03 19:02:43 UTC 
Created attachment 96432 [details]
New crash information added by DrKonqi

amarok (2.8.0) on KDE Platform 4.14.9 using Qt 4.8.6

- What I was doing when the application crashed:
Search tags wim Music Brantz
1st - normal
2 trying - crash

-- Backtrace (Reduced):
#5  0x00007f73d498f611 in QReadWriteLock::lockForRead() () from /usr/lib64/libQtCore.so.4
[...]
#8  0x00007f73d554a5fb in QSortFilterProxyModel::flags(QModelIndex const&) const () from /usr/lib64/libQtGui.so.4
#9  0x00007f73d550a471 in QTreeView::drawRow(QPainter*, QStyleOptionViewItem const&, QModelIndex const&) const () from /usr/lib64/libQtGui.so.4
#10 0x00007f73d550d562 in QTreeView::drawTree(QPainter*, QRegion const&) const () from /usr/lib64/libQtGui.so.4
#11 0x00007f73d5510d0c in QTreeView::paintEvent(QPaintEvent*) () from /usr/lib64/libQtGui.so.4
Comment 3 Janne Mareike Koschinski 2016-01-04 00:05:31 UTC 
Here’s a screen recording on how to reproduce: https://dl.kuschku.de/videos/2016-01-04%2001-03-06.mp4

And this is the last message on stdout before crash:

"Object::connect: No such slot MusicBrainzFinder::gotAuthenticationRequest(QNetworkReply*,QAuthenticator*)"
Comment 4 Myriam Schweingruber 2016-01-04 10:02:33 UTC 
Sorry, but all those backtraces have no debugging symbols, so they are rather useless.
Please install debugging symbols and provide a new backtrace. See also https://techbase.kde.org/Development/Tutorials/Debugging/How_to_create_useful_crash_reports

FWIW: this is a known bug, already reported quite a few times

*** This bug has been marked as a duplicate of bug 328359 ***