Bug 201824

Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.2.98 (KDE 4.2.98 (KDE 4.3 RC3))
Qt Version: 4.5.0
Operating System: Linux 2.6.28-14-generic i686
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
I was giving a normal use to the system, i tried to see a date in the calendar, so i clicked the clock in the system tray, and suddenly plasma-desktop crashed and restarted... i clicked in the clock again when plasma was back, and the calendar opened fine and i had no crash...

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 0 (LWP 4491)]

Thread 2 (Thread 0xa7fd1b90 (LWP 4496)):
#0  0xb8099430 in __kernel_vsyscall ()
#1  0xb65510e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb67312ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb7e879b2 in QWaitCondition::wait (this=0x8b7a3e8, mutex=0x8b7a3e4, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  0xb77c0152 in QHostInfoAgent::run (this=0x8b7a3d8) at kernel/qhostinfo.cpp:260
#5  0xb7e8696e in QThreadPrivate::start (arg=0x8b7a3d8) at thread/qthread_unix.cpp:189
#6  0xb654d4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb672249e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb605ba10 (LWP 4491)):
[KCrash Handler]
#6  0xb7035a9a in QGraphicsItem::isWidget (this=0xaa38240) at graphicsview/qgraphicsitem.cpp:1145
#7  0xb706bb27 in QGraphicsScene::event (this=0x85c0660, event=0xbf8b5770) at graphicsview/qgraphicsscene.cpp:3703
#8  0xb6a07e9c in QApplicationPrivate::notify_helper (this=0x85473c8, receiver=0x85c0660, e=0xbf8b5770) at kernel/qapplication.cpp:4084
#9  0xb6a1019e in QApplication::notify (this=0x8541740, receiver=0x85c0660, e=0xbf8b5770) at kernel/qapplication.cpp:3631
#10 0xb75425cd in KApplication::notify (this=0x8541740, receiver=0x85c0660, event=0xbf8b5770) at /build/buildd/kde4libs-4.2.98a/kdeui/kernel/kapplication.cpp:302
#11 0xb7f7aa3b in QCoreApplication::notifyInternal (this=0x8541740, receiver=0x85c0660, event=0xbf8b5770) at kernel/qcoreapplication.cpp:602
#12 0xb707c1c5 in QGraphicsView::viewportEvent (this=0x8d1d808, event=0xbf8b5770) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#13 0xb6edaf55 in QAbstractScrollAreaFilter::eventFilter (this=0x8d69400, o=0x8d68a38, e=0xbf8b5770) at widgets/qabstractscrollarea_p.h:100
#14 0xb7f79c5a in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x85473c8, receiver=0x8d68a38, event=0xbf8b5770) at kernel/qcoreapplication.cpp:718
#15 0xb6a07e7a in QApplicationPrivate::notify_helper (this=0x85473c8, receiver=0x8d68a38, e=0xbf8b5770) at kernel/qapplication.cpp:4080
#16 0xb6a10282 in QApplication::notify (this=0x8541740, receiver=0x8d68a38, e=0xbf8b5770) at kernel/qapplication.cpp:4049
#17 0xb75425cd in KApplication::notify (this=0x8541740, receiver=0x8d68a38, event=0xbf8b5770) at /build/buildd/kde4libs-4.2.98a/kdeui/kernel/kapplication.cpp:302
#18 0xb7f7aa3b in QCoreApplication::notifyInternal (this=0x8541740, receiver=0x8d68a38, event=0xbf8b5770) at kernel/qcoreapplication.cpp:602
#19 0xb6a5e61d in QWidget::event (this=0x8d1d808, event=0xbf8b5770) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#20 0xb6e38993 in QFrame::event (this=0x8d1d808, e=0xbf8b5770) at widgets/qframe.cpp:559
#21 0xb6ed944d in QAbstractScrollArea::event (this=0x8d1d808, e=0xbf8b5770) at widgets/qabstractscrollarea.cpp:918
#22 0xb707bff6 in QGraphicsView::event (this=0x8d1d808, event=0xbf8b5770) at graphicsview/qgraphicsview.cpp:2854
#23 0xb6a07e9c in QApplicationPrivate::notify_helper (this=0x85473c8, receiver=0x8d1d808, e=0xbf8b5770) at kernel/qapplication.cpp:4084
#24 0xb6a10282 in QApplication::notify (this=0x8541740, receiver=0x8d1d808, e=0xbf8b5770) at kernel/qapplication.cpp:4049
#25 0xb75425cd in KApplication::notify (this=0x8541740, receiver=0x8d1d808, event=0xbf8b5770) at /build/buildd/kde4libs-4.2.98a/kdeui/kernel/kapplication.cpp:302
#26 0xb7f7aa3b in QCoreApplication::notifyInternal (this=0x8541740, receiver=0x8d1d808, event=0xbf8b5770) at kernel/qcoreapplication.cpp:602
#27 0xb6a5e61d in QWidget::event (this=0x8d1cc00, event=0xbf8b5770) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#28 0xb5ced056 in Plasma::Dialog::event (this=0x8d1cc00, event=0xbf8b5770) at /build/buildd/kde4libs-4.2.98a/plasma/dialog.cpp:397
#29 0xb6a07e9c in QApplicationPrivate::notify_helper (this=0x85473c8, receiver=0x8d1cc00, e=0xbf8b5770) at kernel/qapplication.cpp:4084
#30 0xb6a10282 in QApplication::notify (this=0x8541740, receiver=0x8d1cc00, e=0xbf8b5770) at kernel/qapplication.cpp:4049
#31 0xb75425cd in KApplication::notify (this=0x8541740, receiver=0x8d1cc00, event=0xbf8b5770) at /build/buildd/kde4libs-4.2.98a/kdeui/kernel/kapplication.cpp:302
#32 0xb7f7aa3b in QCoreApplication::notifyInternal (this=0x8541740, receiver=0x8d1cc00, event=0xbf8b5770) at kernel/qcoreapplication.cpp:602
#33 0xb6a0ed9e in QApplication::setActiveWindow (act=0x8d1cc00) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#34 0xb6a7e56c in QApplication::x11ProcessEvent (this=0x8541740, event=0xbf8b5c6c) at kernel/qapplication_x11.cpp:3462
#35 0xb6aa9c6a in x11EventSourceDispatch (s=0x854a200, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#36 0xb659ab88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#37 0xb659e0eb in ?? () from /usr/lib/libglib-2.0.so.0
#38 0xb659e268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#39 0xb7fa6438 in QEventDispatcherGlib::processEvents (this=0x85470e0, flags={i = -1081385432}) at kernel/qeventdispatcher_glib.cpp:323
#40 0xb6aa9365 in QGuiEventDispatcherGlib::processEvents (this=0x85470e0, flags={i = -1081385384}) at kernel/qguieventdispatcher_glib.cpp:202
#41 0xb7f7906a in QEventLoop::processEvents (this=0xbf8b5ed0, flags={i = -1081385320}) at kernel/qeventloop.cpp:149
#42 0xb7f794aa in QEventLoop::exec (this=0xbf8b5ed0, flags={i = -1081385256}) at kernel/qeventloop.cpp:200
#43 0xb7f7b959 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:880
#44 0xb6a07d17 in QApplication::exec () at kernel/qapplication.cpp:3553
#45 0xb3b4c5d0 in kdemain (argc=1, argv=0x852cd70) at /build/buildd/kdebase-workspace-4.2.98/plasma/shells/desktop/main.cpp:50
#46 0x0804e27d in launch (argc=1, _name=0x84c957c "/usr/bin/plasma-desktop", args=0x84c9594 "", cwd=0x0, envc=0, envs=0x84c9598 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x8051391 "0") at /build/buildd/kde4libs-4.2.98a/kinit/kinit.cpp:676
#47 0x0804ea5d in handle_launcher_request (sock=7, who=<value optimized out>) at /build/buildd/kde4libs-4.2.98a/kinit/kinit.cpp:1168
#48 0x0804efe5 in handle_requests (waitForPid=0) at /build/buildd/kde4libs-4.2.98a/kinit/kinit.cpp:1361
#49 0x0804fbca in main (argc=2, argv=0xbf8b66c4, envp=0xbf8b66d0) at /build/buildd/kde4libs-4.2.98a/kinit/kinit.cpp:1788

Reported using DrKonqi