Application: kmix (4.6)

Qt Version: 5.6.1
Frameworks Version: 5.26.0
Operating System: Linux 4.4.62-18.6-default x86_64
Distribution: "openSUSE Leap 42.2"

-- Information about the crash:
Some times when I start working with Multimedia (e.g. playing a CD), KMix crashes. After restarting  KMix works in most cases.

The crash can be reproduced sometimes.

-- Backtrace:
Application: KMix (kmix), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fe8aa73f940 (LWP 2470))]

Thread 3 (Thread 0x7fe88f32f700 (LWP 2474)):
#0  0x00007fe8a9ffd49d in poll () from /lib64/libc.so.6
#1  0x00007fe8a00ee3e2 in ?? () from /usr/lib64/libxcb.so.1
#2  0x00007fe8a00effcf in xcb_wait_for_event () from /usr/lib64/libxcb.so.1
#3  0x00007fe895a94839 in ?? () from /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007fe8a59a29e9 in QThreadPrivate::start (arg=0x2445830) at thread/qthread_unix.cpp:341
#5  0x00007fe8a1ebc744 in start_thread () from /lib64/libpthread.so.0
#6  0x00007fe8aa005d3d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7fe896773700 (LWP 2471)):
#0  0x00007fe8a9ffd49d in poll () from /lib64/libc.so.6
#1  0x00007fe8a1318314 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fe8a131842c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fe8a5bb532b in QEventDispatcherGlib::processEvents (this=0x7fe8900008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#4  0x00007fe8a5b62fdb in QEventLoop::exec (this=this@entry=0x7fe896772c60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fe8a599df1a in QThread::exec (this=this@entry=0x7fe8a71f9ce0 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:500
#6  0x00007fe8a6f911d5 in QDBusConnectionManager::run (this=0x7fe8a71f9ce0 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:189
#7  0x00007fe8a59a29e9 in QThreadPrivate::start (arg=0x7fe8a71f9ce0 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:341
#8  0x00007fe8a1ebc744 in start_thread () from /lib64/libpthread.so.0
#9  0x00007fe8aa005d3d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7fe8aa73f940 (LWP 2470)):
[KCrash Handler]
#6  0x00007fe8a598c4b7 in std::__atomic_base<int>::load (__m=std::memory_order_relaxed, this=0x1b) at /usr/include/c++/4.8/bits/atomic_base.h:496
#7  QAtomicOps<int>::load<int> (_q_value=...) at ../../src/corelib/arch/qatomic_cxx11.h:96
#8  QBasicAtomicInteger<int>::load (this=0x1b) at ../../src/corelib/thread/qbasicatomic.h:116
#9  QtPrivate::RefCount::deref (this=0x1b) at ../../src/corelib/tools/qrefcount.h:60
#10 QString::~QString (this=0x7fe89000e198, __in_chrg=<optimized out>) at ../../src/corelib/tools/qstring.h:1065
#11 QList<QString>::node_destruct (this=<optimized out>, to=0x7fe89000e198, from=0x7fe89000e278) at ../../src/corelib/tools/qlist.h:486
#12 QList<QString>::dealloc (this=<optimized out>, data=0x7fe89000e190) at ../../src/corelib/tools/qlist.h:855
#13 QList<QString>::~QList (this=<optimized out>, __in_chrg=<optimized out>) at ../../src/corelib/tools/qlist.h:817
#14 0x00007fe8a5baa7e5 in QStringList::~QStringList (this=0x7fe8900008c0, __in_chrg=<optimized out>) at ../../src/corelib/tools/qstringlist.h:93
#15 v_clear<QStringList> (d=0x7fe8900008c0) at ../../src/corelib/kernel/qvariant_p.h:169
#16 QVariantDestructor<(anonymous namespace)::CoreTypesFilter>::FilteredDestructor<QStringList, true>::FilteredDestructor (d=0x7fe8900008c0, this=<synthetic pointer>) at ../../src/corelib/kernel/qvariant_p.h:413
#17 QVariantDestructor<(anonymous namespace)::CoreTypesFilter>::delegate<QStringList> (this=<synthetic pointer>) at ../../src/corelib/kernel/qvariant_p.h:439
#18 QMetaTypeSwitcher::switcher<void, QVariantDestructor<(anonymous namespace)::CoreTypesFilter> > (data=0x0, type=<optimized out>, logic=<synthetic pointer>) at ../../src/corelib/kernel/qmetatypeswitcher_p.h:68
#19 (anonymous namespace)::clear (d=0x7fe8900008c0) at kernel/qvariant.cpp:123
#20 0x00007fe8a6f957bc in QList<QVariant>::node_destruct (this=<optimized out>, to=0x7fe890019170, from=0x7fe890019170) at ../../src/corelib/tools/qlist.h:484
#21 QList<QVariant>::dealloc (data=0x7fe890019160, this=<optimized out>) at ../../src/corelib/tools/qlist.h:855
#22 0x00007fe8a6fa942b in QDBusMessage::~QDBusMessage (this=<optimized out>, __in_chrg=<optimized out>) at qdbusmessage.cpp:564
#23 0x00007fe8a6f9b6bc in QDBusActivateObjectEvent::~QDBusActivateObjectEvent (this=0x7fe89000f750, __in_chrg=<optimized out>) at qdbusintegrator.cpp:1572
#24 0x00007fe8a6f9b729 in QDBusActivateObjectEvent::~QDBusActivateObjectEvent (this=0x7fe89000f750, __in_chrg=<optimized out>) at qdbusintegrator.cpp:1582
#25 0x00007fe8a5b66db3 in QScopedPointerDeleter<QEvent>::cleanup (pointer=0x7fe89000f750) at ../../src/corelib/tools/qscopedpointer.h:54
#26 QScopedPointer<QEvent, QScopedPointerDeleter<QEvent> >::~QScopedPointer (this=<synthetic pointer>, __in_chrg=<optimized out>) at ../../src/corelib/tools/qscopedpointer.h:101
#27 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x2403340) at kernel/qcoreapplication.cpp:1647
#28 0x00007fe8a5b67358 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1508
#29 0x00007fe8a5bb5c83 in postEventSourceDispatch (s=0x247ec20) at kernel/qeventdispatcher_glib.cpp:270
#30 0x00007fe8a1318134 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#31 0x00007fe8a1318388 in ?? () from /usr/lib64/libglib-2.0.so.0
#32 0x00007fe8a131842c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#33 0x00007fe8a5bb530c in QEventDispatcherGlib::processEvents (this=0x247c000, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#34 0x00007fe8a5b62fdb in QEventLoop::exec (this=this@entry=0x7fff3fca93b0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#35 0x00007fe8a5b6aec6 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1285
#36 0x00007fe8aa309510 in kdemain (argc=2, argv=0x7fff3fca9618) at /usr/src/debug/kmix-16.08.2/apps/main.cpp:91
#37 0x00007fe8a9f3c6e5 in __libc_start_main () from /lib64/libc.so.6
#38 0x0000000000400779 in _start () at ../sysdeps/x86_64/start.S:118

Possible duplicates by query: bug 372712, bug 371804.

Reported using DrKonqi