Bug 278366 - crash enabling show menu from the tool menu
Summary: crash enabling show menu from the tool menu
Status: RESOLVED FIXED
Alias: None
Product: dolphin
Classification: Applications
Component: general (show other bugs)
Version: 16.12.2
Platform: Compiled Sources Linux
: NOR crash
Target Milestone: ---
Assignee: Peter Penz
URL:
Keywords:
: 283274 287230 287296 287566 287605 287612 287634 287675 287676 288742 (view as bug list)
Depends on:
Blocks:
 
Reported: 2011-07-23 23:19 UTC by Jaime Torres
Modified: 2012-09-05 02:42 UTC (History)
13 users (show)

See Also:
Latest Commit:
Version Fixed In:


Attachments
New crash information added by DrKonqi (8.45 KB, text/plain)
2011-11-02 16:53 UTC, Fisiu
Details
New crash information added by DrKonqi (5.95 KB, text/plain)
2012-09-05 02:42 UTC, Anish T
Details

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Description Jaime Torres 2011-07-23 23:19:20 UTC
Application: dolphin (1.6.9)
KDE Platform Version: 4.7.40 (4.7.40 (KDE 4.8 >= 200110623) (Compiled from sources)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-2-desktop x86_64
Distribution: "openSUSE 12.1 Milestone 2 (x86_64)"

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

The menu  can be in the old or in the new form.
If I change the menu with Ctrl+M, no crash.
If I change the menu with the entry Show menu bar, then crash.

The crash can be reproduced every time.

-- Backtrace:
Application: Dolphin (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f1e6fce1760 (LWP 16034))]

Thread 2 (Thread 0x7f1e5977a700 (LWP 16035)):
#0  0x00007f1e6c595813 in poll () from /lib64/libc.so.6
#1  0x00007f1e68de1db8 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f1e68de2279 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f1e6e62e630 in QEventDispatcherGlib::processEvents (this=0x9c7740, flags=...) at /g/kdegit/qt/src/corelib/kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f1e6e5f38fc in QEventLoop::processEvents (this=0x7f1e59779d90, flags=...) at /g/kdegit/qt/src/corelib/kernel/qeventloop.cpp:149
#5  0x00007f1e6e5f3a4f in QEventLoop::exec (this=0x7f1e59779d90, flags=...) at /g/kdegit/qt/src/corelib/kernel/qeventloop.cpp:201
#6  0x00007f1e6e4e42c5 in QThread::exec (this=0x944400) at /g/kdegit/qt/src/corelib/thread/qthread.cpp:498
#7  0x00007f1e6e5d2a69 in QInotifyFileSystemWatcherEngine::run (this=0x944400) at /g/kdegit/qt/src/corelib/io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f1e6e4e6ae3 in QThreadPrivate::start (arg=0x944400) at /g/kdegit/qt/src/corelib/thread/qthread_unix.cpp:331
#9  0x00007f1e6e22ee55 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f1e6c59e86d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f1e6fce1760 (LWP 16034)):
[KCrash Handler]
#6  0x00007f1e6e4c2106 in QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::data (this=0x454545454545454d) at ../../include/QtCore/../../../../kdegit/qt/src/corelib/tools/qscopedpointer.h:135
#7  0x00007f1e6e4dae2a in qGetPtrHelper<QScopedPointer<QObjectData> > (p=...) at ../../include/QtCore/../../../../kdegit/qt/src/corelib/global/qglobal.h:2341
#8  0x00007f1e6e4daec0 in QObject::d_func (this=0x4545454545454545) at ../../include/QtCore/../../../../kdegit/qt/src/corelib/kernel/qobject.h:125
#9  0x00007f1e6e4daef8 in QObjectPrivate::get (o=0x4545454545454545) at ../../include/QtCore/private/../../../../../kdegit/qt/src/corelib/kernel/qobject_p.h:170
#10 0x00007f1e6e60ce3d in QMetaObject::changeGuard (ptr=0xb1c928, o=0x0) at /g/kdegit/qt/src/corelib/kernel/qobject.cpp:471
#11 0x00007f1e6d49b9fc in QPointer<QAction>::operator= (this=0xb1c928, p=0x0) at ../../include/QtCore/../../../../kdegit/qt/src/corelib/kernel/qpointer.h:68
#12 0x00007f1e6da0d8f7 in QMenuPrivate::activateAction (this=0xb1c660, action=0x956560, action_e=QAction::Trigger, self=true) at /g/kdegit/qt/src/gui/widgets/qmenu.cpp:1110
#13 0x00007f1e6da119c6 in QMenu::mouseReleaseEvent (this=0x9d3510, e=0x7fff4a52f6c0) at /g/kdegit/qt/src/gui/widgets/qmenu.cpp:2296
#14 0x00007f1e6f752e61 in KMenu::mouseReleaseEvent (this=0x9d3510, e=0x7fff4a52f6c0) at /g/kdegit/kdelibs/kdeui/widgets/kmenu.cpp:458
#15 0x00007f1e6d50d5c6 in QWidget::event (this=0x9d3510, event=0x7fff4a52f6c0) at /g/kdegit/qt/src/gui/kernel/qwidget.cpp:8295
#16 0x00007f1e6da12080 in QMenu::event (this=0x9d3510, e=0x7fff4a52f6c0) at /g/kdegit/qt/src/gui/widgets/qmenu.cpp:2405
#17 0x00007f1e6d4a7cae in QApplicationPrivate::notify_helper (this=0x6b5960, receiver=0x9d3510, e=0x7fff4a52f6c0) at /g/kdegit/qt/src/gui/kernel/qapplication.cpp:4481
#18 0x00007f1e6d4a5c57 in QApplication::notify (this=0x7fff4a5324f0, receiver=0x9d3510, e=0x7fff4a52f6c0) at /g/kdegit/qt/src/gui/kernel/qapplication.cpp:4042
#19 0x00007f1e6f69851e in KApplication::notify (this=0x7fff4a5324f0, receiver=0x9d3510, event=0x7fff4a52f6c0) at /g/kdegit/kdelibs/kdeui/kernel/kapplication.cpp:311
#20 0x00007f1e6e5f5d2a in QCoreApplication::notifyInternal (this=0x7fff4a5324f0, receiver=0x9d3510, event=0x7fff4a52f6c0) at /g/kdegit/qt/src/corelib/kernel/qcoreapplication.cpp:775
#21 0x00007f1e6d4aa43d in QCoreApplication::sendSpontaneousEvent (receiver=0x9d3510, event=0x7fff4a52f6c0) at ../../include/QtCore/../../../../kdegit/qt/src/corelib/kernel/qcoreapplication.h:218
#22 0x00007f1e6d4a4202 in QApplicationPrivate::sendMouseEvent (receiver=0x9d3510, event=0x7fff4a52f6c0, alienWidget=0x0, nativeWidget=0x9d3510, buttonDown=0x7f1e6e224048, lastMouseReceiver=..., spontaneous=true) at /g/kdegit/qt/src/gui/kernel/qapplication.cpp:3139
#23 0x00007f1e6d547d13 in QETWidget::translateMouseEvent (this=0x9d3510, event=0x7fff4a5300a0) at /g/kdegit/qt/src/gui/kernel/qapplication_x11.cpp:4395
#24 0x00007f1e6d544aed in QApplication::x11ProcessEvent (this=0x7fff4a5324f0, event=0x7fff4a5300a0) at /g/kdegit/qt/src/gui/kernel/qapplication_x11.cpp:3465
#25 0x00007f1e6d57e1c8 in x11EventSourceDispatch (s=0x6b9380, callback=0, user_data=0x0) at /g/kdegit/qt/src/gui/kernel/qguieventdispatcher_glib.cpp:146
#26 0x00007f1e68de18ad in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#27 0x00007f1e68de20a8 in ?? () from /usr/lib64/libglib-2.0.so.0
#28 0x00007f1e68de2279 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#29 0x00007f1e6e62e60d in QEventDispatcherGlib::processEvents (this=0x681900, flags=...) at /g/kdegit/qt/src/corelib/kernel/qeventdispatcher_glib.cpp:422
#30 0x00007f1e6d57e568 in QGuiEventDispatcherGlib::processEvents (this=0x681900, flags=...) at /g/kdegit/qt/src/gui/kernel/qguieventdispatcher_glib.cpp:204
#31 0x00007f1e6e5f38fc in QEventLoop::processEvents (this=0x7fff4a530460, flags=...) at /g/kdegit/qt/src/corelib/kernel/qeventloop.cpp:149
#32 0x00007f1e6e5f3a4f in QEventLoop::exec (this=0x7fff4a530460, flags=...) at /g/kdegit/qt/src/corelib/kernel/qeventloop.cpp:201
#33 0x00007f1e6da1061b in QMenu::exec (this=0x9d3510, p=..., action=0x0) at /g/kdegit/qt/src/gui/widgets/qmenu.cpp:2049
#34 0x00007f1e6da5f85d in QToolButtonPrivate::popupTimerDone (this=0xb1c180) at /g/kdegit/qt/src/gui/widgets/qtoolbutton.cpp:955
#35 0x00007f1e6da5eced in QToolButton::showMenu (this=0x9a04b0) at /g/kdegit/qt/src/gui/widgets/qtoolbutton.cpp:866
#36 0x00007f1e6da5edc9 in QToolButtonPrivate::_q_buttonPressed (this=0xb1c180) at /g/kdegit/qt/src/gui/widgets/qtoolbutton.cpp:879
#37 0x00007f1e6da602f5 in QToolButton::qt_metacall (this=0x9a04b0, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0x7fff4a530810) at .moc/debug-shared/moc_qtoolbutton.cpp:114
#38 0x00007f1e6e5fdda4 in QMetaObject::metacall (object=0x9a04b0, cl=QMetaObject::InvokeMetaMethod, idx=43, argv=0x7fff4a530810) at /g/kdegit/qt/src/corelib/kernel/qmetaobject.cpp:237
#39 0x00007f1e6e612aca in QMetaObject::activate (sender=0x9a04b0, m=0x7f1e6e201620, local_signal_index=0, argv=0x0) at /g/kdegit/qt/src/corelib/kernel/qobject.cpp:3278
#40 0x00007f1e6dcd04bd in QAbstractButton::pressed (this=0x9a04b0) at .moc/debug-shared/moc_qabstractbutton.cpp:193
#41 0x00007f1e6d960d54 in QAbstractButtonPrivate::emitPressed (this=0xb1c180) at /g/kdegit/qt/src/gui/widgets/qabstractbutton.cpp:560
#42 0x00007f1e6d961f99 in QAbstractButton::mousePressEvent (this=0x9a04b0, e=0x7fff4a531700) at /g/kdegit/qt/src/gui/widgets/qabstractbutton.cpp:1096
#43 0x00007f1e6da5e96d in QToolButton::mousePressEvent (this=0x9a04b0, e=0x7fff4a531700) at /g/kdegit/qt/src/gui/widgets/qtoolbutton.cpp:712
#44 0x00007f1e6d50d598 in QWidget::event (this=0x9a04b0, event=0x7fff4a531700) at /g/kdegit/qt/src/gui/kernel/qwidget.cpp:8291
#45 0x00007f1e6d961ed9 in QAbstractButton::event (this=0x9a04b0, e=0x7fff4a531700) at /g/kdegit/qt/src/gui/widgets/qabstractbutton.cpp:1080
#46 0x00007f1e6da600c7 in QToolButton::event (this=0x9a04b0, event=0x7fff4a531700) at /g/kdegit/qt/src/gui/widgets/qtoolbutton.cpp:1163
#47 0x00007f1e6d4a7cae in QApplicationPrivate::notify_helper (this=0x6b5960, receiver=0x9a04b0, e=0x7fff4a531700) at /g/kdegit/qt/src/gui/kernel/qapplication.cpp:4481
#48 0x00007f1e6d4a5c57 in QApplication::notify (this=0x7fff4a5324f0, receiver=0x9a04b0, e=0x7fff4a531700) at /g/kdegit/qt/src/gui/kernel/qapplication.cpp:4042
#49 0x00007f1e6f69851e in KApplication::notify (this=0x7fff4a5324f0, receiver=0x9a04b0, event=0x7fff4a531700) at /g/kdegit/kdelibs/kdeui/kernel/kapplication.cpp:311
#50 0x00007f1e6e5f5d2a in QCoreApplication::notifyInternal (this=0x7fff4a5324f0, receiver=0x9a04b0, event=0x7fff4a531700) at /g/kdegit/qt/src/corelib/kernel/qcoreapplication.cpp:775
#51 0x00007f1e6d4aa43d in QCoreApplication::sendSpontaneousEvent (receiver=0x9a04b0, event=0x7fff4a531700) at ../../include/QtCore/../../../../kdegit/qt/src/corelib/kernel/qcoreapplication.h:218
#52 0x00007f1e6d4a4202 in QApplicationPrivate::sendMouseEvent (receiver=0x9a04b0, event=0x7fff4a531700, alienWidget=0x9a04b0, nativeWidget=0x8e5ae0, buttonDown=0x7f1e6e224048, lastMouseReceiver=..., spontaneous=true) at /g/kdegit/qt/src/gui/kernel/qapplication.cpp:3139
#53 0x00007f1e6d547fcb in QETWidget::translateMouseEvent (this=0x8e5ae0, event=0x7fff4a5320e0) at /g/kdegit/qt/src/gui/kernel/qapplication_x11.cpp:4461
#54 0x00007f1e6d544aed in QApplication::x11ProcessEvent (this=0x7fff4a5324f0, event=0x7fff4a5320e0) at /g/kdegit/qt/src/gui/kernel/qapplication_x11.cpp:3465
#55 0x00007f1e6d57e1c8 in x11EventSourceDispatch (s=0x6b9380, callback=0, user_data=0x0) at /g/kdegit/qt/src/gui/kernel/qguieventdispatcher_glib.cpp:146
#56 0x00007f1e68de18ad in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#57 0x00007f1e68de20a8 in ?? () from /usr/lib64/libglib-2.0.so.0
#58 0x00007f1e68de2279 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#59 0x00007f1e6e62e60d in QEventDispatcherGlib::processEvents (this=0x681900, flags=...) at /g/kdegit/qt/src/corelib/kernel/qeventdispatcher_glib.cpp:422
#60 0x00007f1e6d57e568 in QGuiEventDispatcherGlib::processEvents (this=0x681900, flags=...) at /g/kdegit/qt/src/gui/kernel/qguieventdispatcher_glib.cpp:204
#61 0x00007f1e6e5f38fc in QEventLoop::processEvents (this=0x7fff4a532470, flags=...) at /g/kdegit/qt/src/corelib/kernel/qeventloop.cpp:149
#62 0x00007f1e6e5f3a4f in QEventLoop::exec (this=0x7fff4a532470, flags=...) at /g/kdegit/qt/src/corelib/kernel/qeventloop.cpp:201
#63 0x00007f1e6e5f6416 in QCoreApplication::exec () at /g/kdegit/qt/src/corelib/kernel/qcoreapplication.cpp:1064
#64 0x00007f1e6d4a4e6c in QApplication::exec () at /g/kdegit/qt/src/gui/kernel/qapplication.cpp:3755
#65 0x00007f1e5fdb1fa6 in kdemain (argc=6, argv=0x66ffe0) at /g/kdegit/kde-baseapps/dolphin/src/main.cpp:85
#66 0x00000000004083ea in launch (argc=6, _name=0x6786d8 "/opt/kde4/bin/dolphin", args=<optimized out>, cwd=0x0, envc=<optimized out>, envs=<optimized out>, reset_env=false, tty=0x0, avoid_loops=false, startup_id_str=0x67874f "filemon;1311462502;791495;14785_TIME44092745") at /g/kdegit/kdelibs/kinit/kinit.cpp:734
#67 0x0000000000408cdc in handle_launcher_request (sock=8, who=<optimized out>) at /g/kdegit/kdelibs/kinit/kinit.cpp:1226
#68 0x0000000000409364 in handle_requests (waitForPid=0) at /g/kdegit/kdelibs/kinit/kinit.cpp:1419
#69 0x0000000000405544 in main (argc=4, argv=0x7fff4a533368, envp=0x7fff4a533390) at /g/kdegit/kdelibs/kinit/kinit.cpp:1907

Reported using DrKonqi
Comment 1 Jaime Torres 2011-09-08 15:43:33 UTC
More information...
This only happens in 64 bits (or at least not in a VBox 32 bits).
When run under valgrind there are 2 write errors and several read errors.
Comment 2 Jaime Torres 2011-09-09 16:09:27 UTC
I think it's a Qt bug..
I've fixed it locally with
diff --git a/src/gui/widgets/qmenu.cpp b/src/gui/widgets/qmenu.cpp
index 118c073..72cf7da 100644
--- a/src/gui/widgets/qmenu.cpp
+++ b/src/gui/widgets/qmenu.cpp
@@ -1107,7 +1107,7 @@ void QMenuPrivate::activateAction(QAction *action, QAction::ActionEvent action_e
 #endif
         action->showStatusText(topCausedWidget());
     } else {
-        actionAboutToTrigger = 0;
+        // actionAboutToTrigger = 0;
     }
 }
diff --git a/src/gui/painting/qregion.cpp b/src/gui/painting/qregion.cpp
index 821705c..2573492 100644
--- a/src/gui/painting/qregion.cpp
+++ b/src/gui/painting/qregion.cpp
@@ -3649,6 +3649,7 @@ static QRegionPrivate *PolygonRegion(const QPoint *Pts, int Count, int rule)
                     if (iPts == NUMPTSTOBUFFER) {
                         tmpPtBlock = (POINTBLOCK *)malloc(sizeof(POINTBLOCK));
                         Q_CHECK_PTR(tmpPtBlock);
+                        memset(tmpPtBlock, 0 , sizeof(POINTBLOCK));
                         tmpPtBlock->pts = reinterpret_cast<QPoint *>(tmpPtBlock->data);
                         curPtBlock->next = tmpPtBlock;
                         curPtBlock = tmpPtBlock;
Comment 3 Dario Andres 2011-10-10 18:38:26 UTC
*** Bug 283274 has been marked as a duplicate of this bug. ***
Comment 4 Dario Andres 2011-10-10 18:39:33 UTC
[Comment from a bug report cleaner]
- Was the issue reported to Qt devs ? Is there any upstream bug report reference ? Thanks
Comment 5 Stas 2011-10-10 20:46:43 UTC
What to write in the bugtracker qt ?
What is the reason the bug?
Comment 6 Dario Andres 2011-10-10 20:58:49 UTC
Stas: My question was for Jaime, who marked this report to be caused by a bug on Qt libraries. Thanks anyways
Comment 7 Jaime Torres 2011-10-11 06:57:45 UTC
Thanks Darío, I forgot.
https://bugreports.qt.nokia.com/browse/QTBUG-21952
Comment 8 Fisiu 2011-11-02 16:53:54 UTC
Created attachment 65165 [details]
New crash information added by DrKonqi

dolphin (1.7) on KDE Platform 4.7.2 (4.7.2) using Qt 4.7.4

Still exists on openSUSE 12.1 RC1 x86_64.

-- Backtrace (Reduced):
#7  0x00007febf7fc3436 in operator= (p=0x0, this=0xaf3898) at ../../src/corelib/kernel/qpointer.h:68
#8  QMenuPrivate::activateAction (this=0xaf35d0, action=0x8f2ef0, action_e=QAction::Trigger, self=true) at widgets/qmenu.cpp:1110
#9  0x00007febf982fd40 in KMenu::mouseReleaseEvent (this=0xe4f8f0, e=0x7fff6431f5f0) at /usr/src/debug/kdelibs-4.7.2/kdeui/widgets/kmenu.cpp:464
#10 0x00007febf7bde236 in QWidget::event (this=0xe4f8f0, event=0x7fff6431f5f0) at kernel/qwidget.cpp:8295
#11 0x00007febf7fc497b in QMenu::event (this=0xe4f8f0, e=0x7fff6431f5f0) at widgets/qmenu.cpp:2405
Comment 9 Peter Penz 2011-11-19 05:51:16 UTC
Git commit 4425d906427bf5138d6f26f9ca7d3deabd0659ee by Peter Penz.
Committed on 19/11/2011 at 06:49.
Pushed by ppenz into branch 'KDE/4.7'.

Fix crash when toggling the menu-bar visibility

Use a queued connection to prevent that the menu
gets hidden during it is still open. Thanks to
Christoph Feck for the hint!

Frank and I could not reproduce the issue in our
environments even when following the steps from
bug 278366, however Christoph's hint sounds sane
and let's hope it works (leaves a bad gut feeling
to "fix" bugs without being able to verify them).

BUG: 286822
CCBUG: 278366
FIXED-IN: 4.7.4

M  +3    -1    dolphin/src/dolphinmainwindow.cpp

http://commits.kde.org/kde-baseapps/4425d906427bf5138d6f26f9ca7d3deabd0659ee
Comment 10 Peter Penz 2011-11-19 05:52:04 UTC
Git commit 4f94ca5d90bd346e72878fc44c89f89f06419ed1 by Peter Penz.
Committed on 19/11/2011 at 06:49.
Pushed by ppenz into branch 'master'.

Fix crash when toggling the menu-bar visibility

Use a queued connection to prevent that the menu
gets hidden during it is still open. Thanks to
Christoph Feck for the hint!

Frank and I could not reproduce the issue in our
environments even when following the steps from
bug 278366, however Christoph's hint sounds sane
and let's hope it works (leaves a bad gut feeling
to "fix" bugs without being able to verify them).

CCBUG: 286822
CCBUG: 278366
FIXED-IN: 4.7.4

M  +3    -1    dolphin/src/dolphinmainwindow.cpp

http://commits.kde.org/kde-baseapps/4f94ca5d90bd346e72878fc44c89f89f06419ed1
Comment 11 Jaime Torres 2011-11-20 10:06:31 UTC
I can confirm that your patch fixes the bug for me.
I've reverted my changes to Qt, applied your patch. And it works.
Very good work.
Comment 12 Jekyll Wu 2011-11-22 21:54:27 UTC
*** Bug 287230 has been marked as a duplicate of this bug. ***
Comment 13 Jekyll Wu 2011-11-22 21:55:21 UTC
*** Bug 287296 has been marked as a duplicate of this bug. ***
Comment 14 Jekyll Wu 2011-11-25 18:14:07 UTC
*** Bug 287566 has been marked as a duplicate of this bug. ***
Comment 15 Jekyll Wu 2011-11-26 14:10:17 UTC
*** Bug 287605 has been marked as a duplicate of this bug. ***
Comment 16 Jekyll Wu 2011-11-26 21:19:12 UTC
*** Bug 287612 has been marked as a duplicate of this bug. ***
Comment 17 Jekyll Wu 2011-11-26 21:20:45 UTC
*** Bug 287634 has been marked as a duplicate of this bug. ***
Comment 18 Peter Penz 2011-11-27 13:04:36 UTC
*** Bug 287675 has been marked as a duplicate of this bug. ***
Comment 19 Peter Penz 2011-11-27 13:16:01 UTC
*** Bug 287676 has been marked as a duplicate of this bug. ***
Comment 20 Raul Malea 2011-12-08 19:23:30 UTC
Good!
Comment 21 Thijs 2011-12-12 13:36:04 UTC
*** Bug 288742 has been marked as a duplicate of this bug. ***
Comment 22 Anish T 2012-09-05 02:42:32 UTC
Created attachment 73660 [details]
New crash information added by DrKonqi

dolphin (1.7) on KDE Platform 4.7.2 (4.7.2) "release 5" using Qt 4.7.4

- What I was doing when the application crashed:
I clicked on the configure button  and selected the show menu bar option.

- Custom settings of the application:

-- Backtrace (Reduced):
#8  0xb6768565 in QMenu::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/libQtGui.so.4
#9  0xb75c40ec in KMenu::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/libkdeui.so.5
#10 0xb63172ef in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#11 0xb6766fec in QMenu::event(QEvent*) () from /usr/lib/libQtGui.so.4
#12 0xb62bcee4 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4