Bug 279530

Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.00 (4.7.0) (Compiled from sources)
Qt Version: 4.7.2
Operating System: Linux 2.6.39-gentoo-r3 x86_64
Distribution: "Gentoo Base System release 2.0.3"

-- Information about the crash:
- What I was doing when the application crashed:
→ Tried to quit an application using the x icon in the window decoration
→ Application didn't respond immediately
→ Clicked right on the entry of the application in the tasklist (grouped entry)
→ Application quitted while the context menu should have appeared
→ plasma-desktop crashed

-- Backtrace:
Application: Plasma-Desktop-Umgebung (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fe84c201760 (LWP 3152))]

Thread 3 (Thread 0x7fe828a0b700 (LWP 3154)):
#0  0x00007fe8498f0be7 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fe84695a053 in g_main_context_poll (context=0x225ac60, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>) at gmain.c:3405
#2  g_main_context_iterate (context=0x225ac60, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>) at gmain.c:3087
#3  0x00007fe84695a35e in g_main_context_iteration (context=0x225ac60, may_block=1) at gmain.c:3155
#4  0x00007fe84ae73f8a in QEventDispatcherGlib::processEvents (this=0x225ab70, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007fe84ae4aee2 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#6  0x00007fe84ae4b241 in QEventLoop::exec (this=0x7fe828a0ade0, flags=) at kernel/qeventloop.cpp:201
#7  0x00007fe84ad6b402 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#8  0x00007fe84ae2d42a in QInotifyFileSystemWatcherEngine::run (this=0x22321f0) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007fe84ad6deed in QThreadPrivate::start (arg=0x22321f0) at thread/qthread_unix.cpp:320
#10 0x00007fe84aadfa6d in start_thread (arg=<value optimized out>) at pthread_create.c:301
#11 0x00007fe8498f8d7d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 2 (Thread 0x7fe821dd4700 (LWP 3164)):
#0  pthread_cond_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fe83f0d21d8 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7fe83f3d5160) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007fe83f0d2207 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0x7fe83f3e3234) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007fe84aadfa6d in start_thread (arg=<value optimized out>) at pthread_create.c:301
#4  0x00007fe8498f8d7d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7fe84c201760 (LWP 3152)):
[KCrash Handler]
#6  TaskManager::Task::classClass (this=0x0) at /var/tmp/portage/kde-base/libtaskmanager-4.7.0/work/libtaskmanager-4.7.0/libs/taskmanager/task_x11.cpp:74
#7  0x00007fe83116e614 in TaskManager::ToggleLauncherActionImpl::ToggleLauncherActionImpl (this=0x38ead60, parent=<value optimized out>, item=0x2d91360, strategy=<value optimized out>) at /var/tmp/portage/kde-base/libtaskmanager-4.7.0/work/libtaskmanager-4.7.0/libs/taskmanager/taskactions.cpp:351
#8  0x00007fe83116ed0c in TaskManager::AdvancedMenu::AdvancedMenu (this=0x33515d0, parent=<value optimized out>, item=0x2d91360, strategy=0x2fa06b0) at /var/tmp/portage/kde-base/libtaskmanager-4.7.0/work/libtaskmanager-4.7.0/libs/taskmanager/taskactions.cpp:295
#9  0x00007fe83116f020 in TaskManager::BasicMenu::BasicMenu (this=0x3f42c50, parent=<value optimized out>, item=0x2d91360, strategy=0x2fa06b0, visualizationActions=...) at /var/tmp/portage/kde-base/libtaskmanager-4.7.0/work/libtaskmanager-4.7.0/libs/taskmanager/taskactions.cpp:440
#10 0x00007fe83116f584 in TaskManager::BasicMenu::BasicMenu (this=0x7ffffdef1810, parent=<value optimized out>, group=0x35a8310, strategy=0x2fa06b0, visualizationActions=<value optimized out>) at /var/tmp/portage/kde-base/libtaskmanager-4.7.0/work/libtaskmanager-4.7.0/libs/taskmanager/taskactions.cpp:462
#11 0x00007fe82f7e4635 in TaskGroupItem::contextMenuEvent (this=0x3d9d390, e=<value optimized out>) at /var/tmp/portage/kde-base/plasma-workspace-4.7.0/work/plasma-workspace-4.7.0/plasma/desktop/applets/tasks/taskgroupitem.cpp:435
#12 0x00007fe84a5ed70e in QGraphicsItem::sceneEvent (this=0x3d9d3a0, event=0x0) at graphicsview/qgraphicsitem.cpp:6691
#13 0x00007fe84a6076ac in QGraphicsScene::contextMenuEvent (this=<value optimized out>, contextMenuEvent=0x7ffffdef2090) at graphicsview/qgraphicsscene.cpp:3596
#14 0x00007fe84a619f1e in QGraphicsScene::event (this=0x865c90, event=0x7ffffdef2090) at graphicsview/qgraphicsscene.cpp:3394
#15 0x00007fe84a057b85 in QApplicationPrivate::notify_helper (this=0x717350, receiver=0x865c90, e=0x7ffffdef2090) at kernel/qapplication.cpp:4462
#16 0x00007fe84a05c7a2 in QApplication::notify (this=0x6f3990, receiver=0x865c90, e=0x7ffffdef2090) at kernel/qapplication.cpp:4341
#17 0x00007fe84bbffcc2 in KApplication::notify (this=0x6f3990, receiver=0x865c90, event=0x7ffffdef2090) at /var/tmp/portage/kde-base/kdelibs-4.7.0/work/kdelibs-4.7.0/kdeui/kernel/kapplication.cpp:311
#18 0x00007fe84ae4beae in QCoreApplication::notifyInternal (this=0x6f3990, receiver=0x865c90, event=0x7ffffdef2090) at kernel/qcoreapplication.cpp:731
#19 0x00007fe84a6346c2 in sendEvent (this=0x295ace0, event=0x7ffffdef2b00) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#20 QGraphicsView::contextMenuEvent (this=0x295ace0, event=0x7ffffdef2b00) at graphicsview/qgraphicsview.cpp:2890
#21 0x00007fe84a0a43c7 in QWidget::event (this=0x295ace0, event=0x7ffffdef2b00) at kernel/qwidget.cpp:8426
#22 0x00007fe84a417488 in QFrame::event (this=0x295ace0, e=0x7ffffdef2b00) at widgets/qframe.cpp:557
#23 0x00007fe84a633dc1 in QGraphicsView::viewportEvent (this=0x295ace0, event=0x7ffffdef2b00) at graphicsview/qgraphicsview.cpp:2864
#24 0x00007fe84ae4b849 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x10ef3e0, event=0x7ffffdef2b00) at kernel/qcoreapplication.cpp:846
#25 0x00007fe84a057b65 in QApplicationPrivate::notify_helper (this=0x717350, receiver=0x10ef3e0, e=0x7ffffdef2b00) at kernel/qapplication.cpp:4458
#26 0x00007fe84a05c979 in QApplication::notify (this=0x6f3990, receiver=0x10ef3e0, e=0x7ffffdef2b00) at kernel/qapplication.cpp:4102
#27 0x00007fe84bbffcc2 in KApplication::notify (this=0x6f3990, receiver=0x10ef3e0, event=0x7ffffdef2b00) at /var/tmp/portage/kde-base/kdelibs-4.7.0/work/kdelibs-4.7.0/kdeui/kernel/kapplication.cpp:311
#28 0x00007fe84ae4beae in QCoreApplication::notifyInternal (this=0x6f3990, receiver=0x10ef3e0, event=0x7ffffdef2b00) at kernel/qcoreapplication.cpp:731
#29 0x00007fe84a0d498d in QETWidget::translateMouseEvent (this=<value optimized out>, event=<value optimized out>) at kernel/qapplication_x11.cpp:4466
#30 0x00007fe84a0d36d5 in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7ffffdef32b0) at kernel/qapplication_x11.cpp:3587
#31 0x00007fe84a0fae79 in x11EventSourceDispatch (s=0x71abb0, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#32 0x00007fe8469564cc in g_main_dispatch (context=0x7199b0) at gmain.c:2441
#33 g_main_context_dispatch (context=0x7199b0) at gmain.c:3014
#34 0x00007fe84695a1a1 in g_main_context_iterate (context=0x7199b0, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>) at gmain.c:3092
#35 0x00007fe84695a35e in g_main_context_iteration (context=0x7199b0, may_block=1) at gmain.c:3155
#36 0x00007fe84ae73f52 in QEventDispatcherGlib::processEvents (this=0x6ebc30, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#37 0x00007fe84a0fa8d2 in QGuiEventDispatcherGlib::processEvents (this=0x7ffffdef1580, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#38 0x00007fe84ae4aee2 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#39 0x00007fe84ae4b241 in QEventLoop::exec (this=0x7ffffdef35d0, flags=) at kernel/qeventloop.cpp:201
#40 0x00007fe84ae4ecb7 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#41 0x00007fe83965487e in kdemain (argc=<value optimized out>, argv=<value optimized out>) at /var/tmp/portage/kde-base/plasma-workspace-4.7.0/work/plasma-workspace-4.7.0/plasma/desktop/shell/main.cpp:120
#42 0x0000000000407992 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=0x40accb "0") at /var/tmp/portage/kde-base/kdelibs-4.7.0/work/kdelibs-4.7.0/kinit/kinit.cpp:734
#43 0x00000000004083c8 in handle_launcher_request (sock=7, who=<value optimized out>) at /var/tmp/portage/kde-base/kdelibs-4.7.0/work/kdelibs-4.7.0/kinit/kinit.cpp:1226
#44 0x0000000000408b65 in handle_requests (waitForPid=0) at /var/tmp/portage/kde-base/kdelibs-4.7.0/work/kdelibs-4.7.0/kinit/kinit.cpp:1419
#45 0x0000000000409747 in main (argc=2, argv=<value optimized out>, envp=<value optimized out>) at /var/tmp/portage/kde-base/kdelibs-4.7.0/work/kdelibs-4.7.0/kinit/kinit.cpp:1907

Possible duplicates by query: bug 277033.

Reported using DrKonqi