Bug 286257

Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.3 (4.7.3) (Compiled from sources)
Qt Version: 4.8.0
Operating System: Linux 3.1.0-2-desktop i686
Distribution: "openSUSE 12.1 RC 1 (i586)"

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

Had two Konqueror windows open, closed one of them, then this crash.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
82	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0xafe5c990 (LWP 28038))]

Thread 4 (Thread 0xad673b70 (LWP 28039)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S:170
#1  0xb3b92d4c in WTF::TCMalloc_PageHeap::scavengerThread() () from /local/qt4/lib/libQtWebKit.so.4
#2  0xb3b92447 in WTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /local/qt4/lib/libQtWebKit.so.4
#3  0xb5791a7d in start_thread (arg=0xad673b70) at pthread_create.c:301
#4  0xb492286e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:133

Thread 3 (Thread 0xacd07b70 (LWP 28040)):
#0  0xb4917964 in __GI___poll (fds=0x82f4260, nfds=1, timeout=1727) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0xb1361f7b in g_poll (fds=0x82f4260, nfds=1, timeout=1727) at gpoll.c:132
#2  0xb1353466 in g_main_context_poll (n_fds=1, fds=0x82f4260, timeout=<optimized out>, context=0x833c180, priority=<optimized out>) at gmain.c:3386
#3  g_main_context_iterate (context=0x833c180, block=-1321853104, dispatch=1, self=<optimized out>) at gmain.c:3068
#4  0xb13537fa in g_main_context_iteration (context=0x833c180, may_block=1) at gmain.c:3136
#5  0xb59740a4 in QEventDispatcherGlib::processEvents (this=0x8303cc8, flags=...) at /local/git/Qt/frameworks/qt/src/corelib/kernel/qeventdispatcher_glib.cpp:426
#6  0xb593abc5 in QEventLoop::processEvents (this=0xacd07278, flags=...) at /local/git/Qt/frameworks/qt/src/corelib/kernel/qeventloop.cpp:149
#7  0xb593ad33 in QEventLoop::exec (this=0xacd07278, flags=...) at /local/git/Qt/frameworks/qt/src/corelib/kernel/qeventloop.cpp:204
#8  0xb581da01 in QThread::exec (this=0x82c62c8) at /local/git/Qt/frameworks/qt/src/corelib/thread/qthread.cpp:501
#9  0xb581db81 in QThread::run (this=0x82c62c8) at /local/git/Qt/frameworks/qt/src/corelib/thread/qthread.cpp:568
#10 0xb58201b9 in QThreadPrivate::start (arg=0x82c62c8) at /local/git/Qt/frameworks/qt/src/corelib/thread/qthread_unix.cpp:298
#11 0xb5791a7d in start_thread (arg=0xacd07b70) at pthread_create.c:301
#12 0xb492286e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:133

Thread 2 (Thread 0xa5e01b70 (LWP 28080)):
#0  0xb4917964 in __GI___poll (fds=0x8171e60, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0xb1361f7b in g_poll (fds=0x8171e60, nfds=1, timeout=-1) at gpoll.c:132
#2  0xb1353466 in g_main_context_poll (n_fds=1, fds=0x8171e60, timeout=<optimized out>, context=0x80b39d8, priority=<optimized out>) at gmain.c:3386
#3  g_main_context_iterate (context=0x80b39d8, block=-1321853104, dispatch=1, self=<optimized out>) at gmain.c:3068
#4  0xb13537fa in g_main_context_iteration (context=0x80b39d8, may_block=1) at gmain.c:3136
#5  0xb59740a4 in QEventDispatcherGlib::processEvents (this=0x8690d30, flags=...) at /local/git/Qt/frameworks/qt/src/corelib/kernel/qeventdispatcher_glib.cpp:426
#6  0xb593abc5 in QEventLoop::processEvents (this=0xa5e01248, flags=...) at /local/git/Qt/frameworks/qt/src/corelib/kernel/qeventloop.cpp:149
#7  0xb593ad33 in QEventLoop::exec (this=0xa5e01248, flags=...) at /local/git/Qt/frameworks/qt/src/corelib/kernel/qeventloop.cpp:204
#8  0xb581da01 in QThread::exec (this=0x8734b40) at /local/git/Qt/frameworks/qt/src/corelib/thread/qthread.cpp:501
#9  0xb5918bfe in QInotifyFileSystemWatcherEngine::run (this=0x8734b40) at /local/git/Qt/frameworks/qt/src/corelib/io/qfilesystemwatcher_inotify.cpp:248
#10 0xb58201b9 in QThreadPrivate::start (arg=0x8734b40) at /local/git/Qt/frameworks/qt/src/corelib/thread/qthread_unix.cpp:298
#11 0xb5791a7d in start_thread (arg=0xa5e01b70) at pthread_create.c:301
#12 0xb492286e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:133

Thread 1 (Thread 0xafe5c990 (LWP 28038)):
[KCrash Handler]
#6  0xad80d50f in QWeakPointer<TaskManager::Task>::data (this=0x45454545) at /local/qt4/include/QtCore/qsharedpointer_impl.h:587
#7  0xad812d54 in TaskManager::TaskItem::task (this=0x8a095b8) at /local/git/KDE/base/kde-workspace/libs/taskmanager/taskitem.cpp:135
#8  0xad859272 in WindowTaskItem::publishIconGeometry (this=0x896f440) at /local/git/KDE/base/kde-workspace/plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#9  0xad8665d8 in AbstractTaskItem::timerEvent (this=0x896f440, event=0xbfacd964) at /local/git/KDE/base/kde-workspace/plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#10 0xb5953b7a in QObject::event (this=0x896f440, e=0xbfacd964) at /local/git/Qt/frameworks/qt/src/corelib/kernel/qobject.cpp:1157
#11 0xb53cfd67 in QGraphicsWidget::event (this=0x896f440, event=0xbfacd964) at /local/git/Qt/frameworks/qt/src/gui/graphicsview/qgraphicswidget.cpp:1461
#12 0xb4c7280e in QApplicationPrivate::notify_helper (this=0x80c37e8, receiver=0x896f440, e=0xbfacd964) at /local/git/Qt/frameworks/qt/src/gui/kernel/qapplication.cpp:4550
#13 0xb4c7011e in QApplication::notify (this=0x80c7a48, receiver=0x896f440, e=0xbfacd964) at /local/git/Qt/frameworks/qt/src/gui/kernel/qapplication.cpp:3932
#14 0xb610664a in KApplication::notify (this=0x80c7a48, receiver=0x896f440, event=0xbfacd964) at /local/git/KDE/libs/kdelibs/kdeui/kernel/kapplication.cpp:311
#15 0xb593d102 in QCoreApplication::notifyInternal (this=0x80c7a48, receiver=0x896f440, event=0xbfacd964) at /local/git/Qt/frameworks/qt/src/corelib/kernel/qcoreapplication.cpp:876
#16 0xb59407b7 in QCoreApplication::sendEvent (receiver=0x896f440, event=0xbfacd964) at ../../include/QtCore/../../../../git/Qt/frameworks/qt/src/corelib/kernel/qcoreapplication.h:231
#17 0xb5976aff in QTimerInfoList::activateTimers (this=0x80cccac) at /local/git/Qt/frameworks/qt/src/corelib/kernel/qeventdispatcher_unix.cpp:611
#18 0xb5973733 in timerSourceDispatch (source=0x80ccc78) at /local/git/Qt/frameworks/qt/src/corelib/kernel/qeventdispatcher_glib.cpp:186
#19 0xb59737eb in idleTimerSourceDispatch (source=0x80cc400) at /local/git/Qt/frameworks/qt/src/corelib/kernel/qeventdispatcher_glib.cpp:233
#20 0xb1352e2f in g_main_dispatch (context=0x80cbb58) at gmain.c:2425
#21 g_main_context_dispatch (context=0x80cbb58) at gmain.c:2995
#22 0xb1353560 in g_main_context_iterate (context=0x80cbb58, block=-1321853104, dispatch=1, self=<optimized out>) at gmain.c:3073
#23 0xb13537fa in g_main_context_iteration (context=0x80cbb58, may_block=1) at gmain.c:3136
#24 0xb5974084 in QEventDispatcherGlib::processEvents (this=0x80bc248, flags=...) at /local/git/Qt/frameworks/qt/src/corelib/kernel/qeventdispatcher_glib.cpp:424
#25 0xb4d3a69a in QGuiEventDispatcherGlib::processEvents (this=0x80bc248, flags=...) at /local/git/Qt/frameworks/qt/src/gui/kernel/qguieventdispatcher_glib.cpp:204
#26 0xb593abc5 in QEventLoop::processEvents (this=0xbfacdbfc, flags=...) at /local/git/Qt/frameworks/qt/src/corelib/kernel/qeventloop.cpp:149
#27 0xb593ad33 in QEventLoop::exec (this=0xbfacdbfc, flags=...) at /local/git/Qt/frameworks/qt/src/corelib/kernel/qeventloop.cpp:204
#28 0xb593d77e in QCoreApplication::exec () at /local/git/Qt/frameworks/qt/src/corelib/kernel/qcoreapplication.cpp:1148
#29 0xb4c6fdb0 in QApplication::exec () at /local/git/Qt/frameworks/qt/src/gui/kernel/qapplication.cpp:3811
#30 0xb7731a96 in kdemain (argc=1, argv=0xbfacde04) at /local/git/KDE/base/kde-workspace/plasma/desktop/shell/main.cpp:120
#31 0x08048859 in main (argc=1, argv=0xbfacde04) at /local/build/KDE/base/kde-workspace/plasma/desktop/shell/plasma-desktop_dummy.cpp:3

Reported using DrKonqi