Bug 340277

Application: kontact (4.14.2)
KDE Platform Version: 4.14.2
Qt Version: 4.8.6
Operating System: Linux 3.16.0-23-generic x86_64
Distribution: Ubuntu 14.10

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

Kontact crashed with SIGSEGV on startup (when restoring KDE session).

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fc5a449f8c0 (LWP 3026))]

Thread 3 (Thread 0x7fc583fda700 (LWP 3079)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fc59f19981d in WTF::TCMalloc_PageHeap::scavengerThread() () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007fc59f199859 in WTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007fc59b8b30a5 in start_thread (arg=0x7fc583fda700) at pthread_create.c:309
#4  0x00007fc5a19c484d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7fc5436d7700 (LWP 3110)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fc59eeda20d in JSC::BlockAllocator::blockFreeingThreadMain() () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007fc59f1c8fd6 in WTF::wtfThreadEntryPoint(void*) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007fc59b8b30a5 in start_thread (arg=0x7fc5436d7700) at pthread_create.c:309
#4  0x00007fc5a19c484d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7fc5a449f8c0 (LWP 3026)):
[KCrash Handler]
#6  0x00007fc59b8bc838 in _xend () at ../nptl/sysdeps/unix/sysv/linux/x86/elision-unlock.c:33
#7  __lll_unlock_elision (lock=0x7fc5881fb008, private=128) at ../nptl/sysdeps/unix/sysv/linux/x86/elision-unlock.c:29
#8  0x00007fc5a26b35b2 in unlock (this=0xc67f80) at ../../kdecore/util/kshareddatacache.cpp:1245
#9  ~CacheLocker (this=<synthetic pointer>, __in_chrg=<optimized out>) at ../../kdecore/util/kshareddatacache.cpp:1317
#10 KSharedDataCache::find (this=0xc4b120, key=..., destination=destination@entry=0x7fff3ac05d90) at ../../kdecore/util/kshareddatacache.cpp:1608
#11 0x00007fc5a37fd826 in KIconLoaderPrivate::findCachedPixmapWithPath (this=0xc4b5d0, key=..., data=..., path=...) at ../../kdeui/icons/kiconloader.cpp:854
#12 0x00007fc5a37fdbec in KIconLoader::loadIcon (this=0xc27b80, _name=..., group=KIconLoader::Small, size=16, state=0, overlays=..., path_store=0x0, canReturnNull=false) at ../../kdeui/icons/kiconloader.cpp:1149
#13 0x00007fc5a37fefff in SmallIcon (name=..., force_size=force_size@entry=0, state=state@entry=0, overlays=...) at ../../kdeui/icons/kiconloader.cpp:1556
#14 0x00007fc53a9df42d in MessageList::Core::Manager::Manager (this=this@entry=0x1482c40) at ../../messagelist/core/manager.cpp:87
#15 0x00007fc53a9e0384 in MessageList::Core::Manager::registerWidget (pWidget=pWidget@entry=0xd75c50) at ../../messagelist/core/manager.cpp:150
#16 0x00007fc53aa1d3fa in MessageList::Core::Widget::Widget (this=0xd75c50, pParent=<optimized out>) at ../../messagelist/core/widgetbase.cpp:127
#17 0x00007fc53aa3fb6c in MessageList::Widget::Widget (this=0xd75c50, parent=<optimized out>) at ../../messagelist/widget.cpp:85
#18 0x00007fc53aa36cf9 in MessageList::Pane::createNewTab (this=this@entry=0x158b0c0) at ../../messagelist/pane.cpp:720
#19 0x00007fc53aa393a8 in MessageList::Pane::readConfig (this=this@entry=0x158b0c0, restoreSession=restoreSession@entry=false) at ../../messagelist/pane.cpp:1087
#20 0x00007fc53aa3a0c1 in MessageList::Pane::Pane (this=0x158b0c0, restoreSession=<optimized out>, model=<optimized out>, selectionModel=<optimized out>, parent=<optimized out>) at ../../messagelist/pane.cpp:170
#21 0x00007fc53b68604d in CollectionPane::CollectionPane (this=0x158b0c0, restoreSession=<optimized out>, model=<optimized out>, selectionModel=<optimized out>, parent=<optimized out>) at ../../kmail/widgets/collectionpane.cpp:32
#22 0x00007fc53b64b079 in KMMainWidget::createWidgets (this=this@entry=0x144eee0) at ../../kmail/kmmainwidget.cpp:993
#23 0x00007fc53b65abf1 in KMMainWidget::KMMainWidget (this=0x144eee0, parent=<optimized out>, aGUIClient=0x100ac00, actionCollection=<optimized out>, config=...) at ../../kmail/kmmainwidget.cpp:267
#24 0x00007fc53b9e3ed1 in KMailPart::KMailPart (this=this@entry=0x100abd0, parentWidget=parentWidget@entry=0xc8b6b0, parent=parent@entry=0xc8b6b0, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at ../../kmail/kmail_part.cpp:94
#25 0x00007fc53b9e53e1 in KPluginFactory::createPartInstance<KMailPart> (parentWidget=0xc8b6b0, parent=0xc8b6b0, args=...) at /usr/include/kpluginfactory.h:483
#26 0x00007fc5a2695d43 in KPluginFactory::create (this=0x1017b20, iface=0x7fc5a16b71c0 <qt_meta_stringdata_KParts__ReadOnlyPart> "KParts::ReadOnlyPart", parentWidget=0xc8b6b0, parent=0xc8b6b0, args=..., keyword=...) at ../../kdecore/util/kpluginfactory.cpp:203
#27 0x00007fc5a40e2585 in create<KParts::ReadOnlyPart> (args=..., parent=0xc8b6b0, this=<optimized out>) at /usr/include/kpluginfactory.h:507
#28 KontactInterface::Core::createPart (this=0xc8b6b0, libname=0xde21f8 "kmailpart") at ../../kontactinterface/core.cpp:87
#29 0x00007fc5a40e36ae in KontactInterface::Plugin::loadPart (this=this@entry=0xdf8f10) at ../../kontactinterface/plugin.cpp:154
#30 0x00007fc5401c49a2 in KMailPlugin::createPart (this=0xdf8f10) at ../../../../kontact/plugins/kmail/kmail_plugin.cpp:197
#31 0x00007fc5a40e526c in KontactInterface::Plugin::part (this=0xdf8f10) at ../../kontactinterface/plugin.cpp:193
#32 0x00007fc5a3caa8ee in Kontact::MainWindow::selectPlugin (this=0xc8b6b0, plugin=0xdf8f10) at ../../../kontact/src/mainwindow.cpp:810
#33 0x00007fc5a3ca7b3c in Kontact::MainWindow::loadSettings (this=this@entry=0xc8b6b0) at ../../../kontact/src/mainwindow.cpp:981
#34 0x00007fc5a3cae192 in Kontact::MainWindow::initObject (this=this@entry=0xc8b6b0) at ../../../kontact/src/mainwindow.cpp:247
#35 0x00007fc5a3cae89c in Kontact::MainWindow::MainWindow (this=0xc8b6b0, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at ../../../kontact/src/mainwindow.cpp:154
#36 0x0000000000403f64 in KontactApp::newInstance (this=0x7fff3ac07dc0) at ../../../kontact/src/main.cpp:135
#37 0x00007fc5a38529ba in KUniqueApplicationAdaptor::newInstance (this=0xcb6100, asn_id=..., args=...) at ../../kdeui/kernel/kuniqueapplication.cpp:442
#38 0x00007fc5a3852a9d in KUniqueApplicationAdaptor::qt_static_metacall (_o=_o@entry=0xcb6100, _id=_id@entry=0, _a=_a@entry=0x7fff3ac07480, _c=QMetaObject::InvokeMetaMethod) at ./kuniqueapplication_p.moc:57
#39 0x00007fc5a3852ca3 in qt_static_metacall (_a=0x7fff3ac07480, _id=0, _c=QMetaObject::InvokeMetaMethod, _o=0xcb6100) at ./kuniqueapplication_p.moc:100
#40 KUniqueApplicationAdaptor::qt_metacall (this=0xcb6100, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x7fff3ac07480) at ./kuniqueapplication_p.moc:101
#41 0x00007fc5a0d12bf6 in QDBusConnectionPrivate::deliverCall (this=this@entry=0xb52f40, object=object@entry=0xcb6100, msg=..., metaTypes=..., slotIdx=4) at qdbusintegrator.cpp:951
#42 0x00007fc5a0d13d29 in QDBusConnectionPrivate::activateCall (this=this@entry=0xb52f40, object=0xcb6100, flags=flags@entry=337, msg=...) at qdbusintegrator.cpp:856
#43 0x00007fc5a0d14798 in QDBusConnectionPrivate::activateObject (this=0xb52f40, node=..., msg=..., pathStartPos=<optimized out>) at qdbusintegrator.cpp:1427
#44 0x00007fc5a0d1491b in QDBusActivateObjectEvent::placeMetaCall (this=0xcbe6a0) at qdbusintegrator.cpp:1541
#45 0x00007fc5a2131f41 in QObject::event (this=this@entry=0x7fff3ac07dc0, e=e@entry=0xcbe6a0) at kernel/qobject.cpp:1222
#46 0x00007fc5a211debc in QCoreApplication::event (this=this@entry=0x7fff3ac07dc0, e=e@entry=0xcbe6a0) at kernel/qcoreapplication.cpp:1765
#47 0x00007fc5a2b28203 in QApplication::event (this=0x7fff3ac07dc0, e=0xcbe6a0) at kernel/qapplication.cpp:2549
#48 0x00007fc5a2b2311c in QApplicationPrivate::notify_helper (this=this@entry=0xb79b10, receiver=receiver@entry=0x7fff3ac07dc0, e=e@entry=0xcbe6a0) at kernel/qapplication.cpp:4570
#49 0x00007fc5a2b29870 in QApplication::notify (this=this@entry=0x7fff3ac07dc0, receiver=receiver@entry=0x7fff3ac07dc0, e=e@entry=0xcbe6a0) at kernel/qapplication.cpp:4356
#50 0x00007fc5a384b4da in KApplication::notify (this=0x7fff3ac07dc0, receiver=0x7fff3ac07dc0, event=0xcbe6a0) at ../../kdeui/kernel/kapplication.cpp:311
#51 0x00007fc5a211986d in QCoreApplication::notifyInternal (this=0x7fff3ac07dc0, receiver=receiver@entry=0x7fff3ac07dc0, event=event@entry=0xcbe6a0) at kernel/qcoreapplication.cpp:953
#52 0x00007fc5a211cf41 in sendEvent (event=0xcbe6a0, receiver=0x7fff3ac07dc0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#53 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0xb31140) at kernel/qcoreapplication.cpp:1577
#54 0x00007fc5a211d3d3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1470
#55 0x00007fc5a2146ed3 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#56 postEventSourceDispatch (s=0xb6d610) at kernel/qeventdispatcher_glib.cpp:287
#57 0x00007fc59b3cdc5d in g_main_dispatch (context=0xb79fa0) at /build/buildd/glib2.0-2.42.0/./glib/gmain.c:3111
#58 g_main_context_dispatch (context=context@entry=0xb79fa0) at /build/buildd/glib2.0-2.42.0/./glib/gmain.c:3710
#59 0x00007fc59b3cdf48 in g_main_context_iterate (context=context@entry=0xb79fa0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.42.0/./glib/gmain.c:3781
#60 0x00007fc59b3cdffc in g_main_context_iteration (context=0xb79fa0, may_block=1) at /build/buildd/glib2.0-2.42.0/./glib/gmain.c:3842
#61 0x00007fc5a2147031 in QEventDispatcherGlib::processEvents (this=0xb32a40, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#62 0x00007fc5a2bc64e6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#63 0x00007fc5a21184f1 in QEventLoop::processEvents (this=this@entry=0x7fff3ac07cf0, flags=...) at kernel/qeventloop.cpp:149
#64 0x00007fc5a2118805 in QEventLoop::exec (this=this@entry=0x7fff3ac07cf0, flags=...) at kernel/qeventloop.cpp:204
#65 0x00007fc5a211df67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#66 0x00007fc5a2b214dc in QApplication::exec () at kernel/qapplication.cpp:3828
#67 0x0000000000403509 in main (argc=1, argv=0x7fff3ac07f18) at ../../../kontact/src/main.cpp:219

Possible duplicates by query: bug 336882, bug 334846, bug 334674.


Reproducible: Sometimes