Bug 250447

Application: plasma-desktop (0.3)
KDE Platform Version: 4.4.2 (KDE 4.4.2)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-24-generic x86_64
Distribution: Ubuntu 10.04.1 LTS

-- Information about the crash:
I was attempting to add a CPU load widget.  The widget list refused to scroll, so I tried to locate the widget I needed by searching.  After typing a few characters, the desktop crashed.

The crash can be reproduced some of the time.

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f5389eee760 (LWP 17275))]

Thread 2 (Thread 0x7f5367b51710 (LWP 17276)):
#0  0x00007f5386ed5f83 in *__GI___poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f538389a4a9 in ?? () from /lib/libglib-2.0.so.0
#2  0x00007f538389a8fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#3  0x00007f53884de566 in QEventDispatcherGlib::processEvents (this=0x1c39e00, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:414
#4  0x00007f53884b3992 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#5  0x00007f53884b3d6c in QEventLoop::exec (this=0x7f5367b50db0, flags=) at kernel/qeventloop.cpp:201
#6  0x00007f53883bdd59 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:487
#7  0x00007f5388494178 in QInotifyFileSystemWatcherEngine::run (this=0x1c88c40) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f53883c0775 in QThreadPrivate::start (arg=0x1c88c40) at thread/qthread_unix.cpp:248
#9  0x00007f53881309ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#10 0x00007f5386ee26fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f5389eee760 (LWP 17275)):
[KCrash Handler]
#5  QGraphicsItem::pos (this=0x74006600000016) at graphicsview/qgraphicsitem.cpp:3419
#6  0x00007f537cc3935b in AppletsListWidget::itemPosition (this=<value optimized out>, i=31) at ../../../libs/plasmagenericshell/widgetsexplorer/appletslist.cpp:693
#7  0x00007f537cc39717 in AppletsListWidget::manageArrows (this=0x2a0d9e0) at ../../../libs/plasmagenericshell/widgetsexplorer/appletslist.cpp:636
#8  0x00007f537cc3a768 in AppletsListWidget::eventFilter (this=0x2a0d9e0, obj=0x29c53e0, event=0x7fff8b07b860) at ../../../libs/plasmagenericshell/widgetsexplorer/appletslist.cpp:172
#9  0x00007f53884b4487 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x29c53e0, event=0x7fff8b07b860) at kernel/qcoreapplication.cpp:819
#10 0x00007f53876511fc in QApplicationPrivate::notify_helper (this=0x17bcbb0, receiver=0x29c53e0, e=0x7fff8b07b860) at kernel/qapplication.cpp:4296
#11 0x00007f53876576fb in QApplication::notify (this=0x17b32c0, receiver=0x29c53e0, e=0x7fff8b07b860) at kernel/qapplication.cpp:4183
#12 0x00007f53889fc526 in KApplication::notify (this=0x17b32c0, receiver=0x29c53e0, event=0x7fff8b07b860) at ../../kdeui/kernel/kapplication.cpp:302
#13 0x00007f53884b506c in QCoreApplication::notifyInternal (this=0x17b32c0, receiver=0x29c53e0, event=0x7fff8b07b860) at kernel/qcoreapplication.cpp:704
#14 0x00007f5387c9a271 in QCoreApplication::sendEvent (this=0x29c53e0, rect=...) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#15 QGraphicsWidget::setGeometry (this=0x29c53e0, rect=...) at graphicsview/qgraphicswidget.cpp:394
#16 0x00007f5387c972b8 in QGraphicsWidget::resize (this=0x29c53e0, size=...) at graphicsview/qgraphicswidget.cpp:309
#17 0x00007f5387c976c0 in QGraphicsWidget::adjustSize (this=0x29c53e0) at graphicsview/qgraphicswidget.cpp:807
#18 0x00007f537cc3ae4e in AppletsListWidget::updateList (this=0x2a0d9e0) at ../../../libs/plasmagenericshell/widgetsexplorer/appletslist.cpp:461
#19 0x00007f537cc1d4bc in AppletsListWidget::qt_metacall (this=0x2a0d9e0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff8b07bc70) at moc_appletslist.cpp:109
#20 0x00007f53884c7e3f in QMetaObject::activate (sender=0x29cc340, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0xffffffffffafa4a8) at kernel/qobject.cpp:3293
#21 0x00007f537cc1c5c2 in KCategorizedItemsViewModels::DefaultItemFilterProxyModel::searchTermChanged (this=0x74006600000016, _t1=<value optimized out>) at moc_kcategorizeditemsviewmodels_p.cpp:88
#22 0x00007f537cc3cc3f in AppletsListWidget::timerEvent (this=0x2a0d9e0, event=0x7fff8b07c480) at ../../../libs/plasmagenericshell/widgetsexplorer/appletslist.cpp:265
#23 0x00007f53884c4a63 in QObject::event (this=0x2a0d9e0, e=0x7fff8b07c480) at kernel/qobject.cpp:1212
#24 0x00007f5387c96edb in QGraphicsWidget::event (this=0x2a0d9e0, event=0x7fff8b07c480) at graphicsview/qgraphicswidget.cpp:1361
#25 0x00007f538765122c in QApplicationPrivate::notify_helper (this=0x17bcbb0, receiver=0x2a0d9e0, e=0x7fff8b07c480) at kernel/qapplication.cpp:4300
#26 0x00007f53876576fb in QApplication::notify (this=0x17b32c0, receiver=0x2a0d9e0, e=0x7fff8b07c480) at kernel/qapplication.cpp:4183
#27 0x00007f53889fc526 in KApplication::notify (this=0x17b32c0, receiver=0x2a0d9e0, event=0x7fff8b07c480) at ../../kdeui/kernel/kapplication.cpp:302
#28 0x00007f53884b506c in QCoreApplication::notifyInternal (this=0x17b32c0, receiver=0x2a0d9e0, event=0x7fff8b07c480) at kernel/qcoreapplication.cpp:704
#29 0x00007f53884e1d42 in QCoreApplication::sendEvent (this=0x17c0140) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#30 QTimerInfoList::activateTimers (this=0x17c0140) at kernel/qeventdispatcher_unix.cpp:603
#31 0x00007f53884de824 in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#32 0x00007f53838968c2 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#33 0x00007f538389a748 in ?? () from /lib/libglib-2.0.so.0
#34 0x00007f538389a8fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#35 0x00007f53884de513 in QEventDispatcherGlib::processEvents (this=0x17bc450, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#36 0x00007f538770146e in QGuiEventDispatcherGlib::processEvents (this=0x74006600000016, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#37 0x00007f53884b3992 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#38 0x00007f53884b3d6c in QEventLoop::exec (this=0x7fff8b07c720, flags=) at kernel/qeventloop.cpp:201
#39 0x00007f53884b7aab in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#40 0x00007f537d4f2fb2 in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../../../plasma/desktop/shell/main.cpp:112
#41 0x00000000004070f3 in launch (argc=1, _name=<value optimized out>, args=<value optimized out>, cwd=<value optimized out>, envc=0, envs=<value optimized out>, reset_env=false, tty=0x0, 
    avoid_loops=false, startup_id_str=0x40a4f9 "0") at ../../kinit/kinit.cpp:717
#42 0x0000000000407cb0 in handle_launcher_request (sock=8, who=<value optimized out>) at ../../kinit/kinit.cpp:1209
#43 0x000000000040823a in handle_requests (waitForPid=0) at ../../kinit/kinit.cpp:1402
#44 0x0000000000408e22 in main (argc=4, argv=<value optimized out>, envp=<value optimized out>) at ../../kinit/kinit.cpp:1845

This bug may be a duplicate of or related to bug 224593.

Possible duplicates by query: bug 249646, bug 248969, bug 248914, bug 247472, bug 246953.

Reported using DrKonqi