| Summary: | Going back to icon view from "Global Keyboard Shortcuts" crashes [QWidget::ensurePolished, QWidgetPrivate::activateChildLayoutsRecursively, QWidgetPrivate::activateChildLayoutsRecursively] | ||
|---|---|---|---|
| Product: | [Plasma] Oxygen | Reporter: | Christoph Feck <cfeck> |
| Component: | style | Assignee: | Camilla Boemann <cbo> |
| Status: | RESOLVED FIXED | ||
| Severity: | crash | CC: | aevar.gudmundsson, andresbajotierra, bcooksley, benpro82, biasquez, bugs.kde.org.id324, hugo.pereira.da.costa, javier.conti, marokanski.kazak, mirza.dervisevic, ophir.geffen, pprzemal, simon, sourtooth+ssbugs |
| Priority: | NOR | ||
| Version: | unspecified | ||
| Target Milestone: | --- | ||
| Platform: | Compiled Sources | ||
| OS: | Linux | ||
| Latest Commit: | Version Fixed In: | ||
| Sentry Crash Report: | |||
| Attachments: |
New crash information added by DrKonqi
New crash information added by DrKonqi New crash information added by DrKonqi New crash information added by DrKonqi New crash information added by DrKonqi |
||
Looks like the Oxygen style is at fault, and I can't reproduce locally. It crashes for me here using:
Qt: 4.6.0 (kde-qt master commit cd8595efe9aace2afdaa5db37af7cfe82b87e4aa
Date: Wed Nov 18 01:33:21 2009 +0100)
KDE: 4.3.77 (KDE 4.3.77 (KDE 4.4 >= 20091123))
kdelibs svn rev. 1053388 / kdebase svn rev. 1053388
on ArchLinux i686 - Kernel 2.6.31.6
In fact, it seems to be Oxygen related...
I couldn't get it to crash with "systemsettings -style plastique"
Regards
*** Bug 216314 has been marked as a duplicate of this bug. *** Yep. Oxygen related. More precisely, animation related. Could you check whether or not the crash still happens if you uncheck the "animate tab transitions" checkbox in the oxygen style configuration dialog ? systemsettings->Appearance->style->configure (right of the style selection combobox)->animations (last tab) ? thanks in advance Here using:
Qt: 4.6.0 (kde-qt master commit cd8595efe9aace2afdaa5db37af7cfe82b87e4aa
Date: Wed Nov 18 01:33:21 2009 +0100)
KDE: 4.3.80 (KDE 4.3.80 (KDE 4.4 Beta1))
kdelibs svn rev. 1056270 / kdebase svn rev. 1056271
on ArchLinux i686 - Kernel 2.6.31.6
I can confirm that disabling the Oxygen tab animation, and restarting SystemSettings, "fixes" the crash.
Thanks for the info. What is surprising though is that the crash occurs in QWidget::render. while the widget to which it is called is valid (non NULL) In that sense that might actually be a Qt bug. How can I know whether I am allowed to call QWidget::render or not otherwise ? *** Bug 217179 has been marked as a duplicate of this bug. *** *** Bug 218472 has been marked as a duplicate of this bug. *** *** Bug 218917 has been marked as a duplicate of this bug. *** There is a backtrace related to this at https://bugs.kde.org/attachment.cgi?id=39091 , it is a bit different (it includes more Oxygen calls), but may be the same. @Hugo: can you check it ? Thanks Looking into this one too. @Dario thanks for the backtrace. What anoys me here like in the other oxygen related bugs is that - the crash really happens in Qt (which is not to say that Oxygen don't trigger it). - none of these crash happen when using Qt4.5 (against which oxygen-style compiles just fine). Which is more suspicious to me. But I'm still looking. Anyway, I guess if it can't be fixed for kde4.4 release, One might need to disable "transitions" as a whole (tabwidgets, lineEditors, ComboBoxes and QLabel), since all of them crash Qt one way or the other (all of them by either calling QWidget::render, or QPixmap::grab). 2009/12/16 Hugo Pereira Da Costa <hugo.pereira@free.fr>: > https://bugs.kde.org/show_bug.cgi?id=216215 > > > > > > --- Comment #11 from Hugo Pereira Da Costa <hugo pereira free fr> 2009-12-16 16:41:43 --- > Looking into this one too. @Dario thanks for the backtrace. > What anoys me here like in the other oxygen related bugs is that > - the crash really happens in Qt (which is not to say that Oxygen don't trigger > it). > - none of these crash happen when using Qt4.5 (against which oxygen-style > compiles just fine). Which is more suspicious to me. Hi Hugo, just to mention, I'm experiencing (probably) the same problem, but with QT 4.6. Ciao, Javier > > But I'm still looking. > > Anyway, I guess if it can't be fixed for kde4.4 release, One might need to > disable "transitions" as a whole (tabwidgets, lineEditors, ComboBoxes and > QLabel), since all of them crash Qt one way or the other (all of them by either > calling QWidget::render, or QPixmap::grab). > > -- > Configure bugmail: https://bugs.kde.org/userprefs.cgi?tab=email > ------- You are receiving this mail because: ------- > You are on the CC list for the bug. > So I looked into the backtrace in a bit more detail. Interesting things are: #6 QWidget::ensurePolished (this=0x9daee48) while earlier in the loop: #51 0xb6552257 in QWidget::~QWidget (this=0x9daee48, __in_chrg=<value optimized out>) at /local/git/Qt/qt/src/gui/kernel/qwidget.cpp:1459 #52 0xb691f191 in QFrame::~QFrame (this=0x9daee48, __in_chrg=<value optimized out>) at /local/git/Qt/qt/src/gui/widgets/qframe.cpp:242 (note that this is the same widget address). So clearly: QWidget::render tries (recursively) to access a pointer that already has been deleted. Bad. The same scenario is true for but 217179, bug 218472, and in the backtrace of comment #10. I am not sure about what can be done about this: either it is a QWidget::render bug, or the call to QWidget::render done by oxygen (and triggered by a signal/slot connection) is done too early in the event loop. May be this should be forwarded to the Qt bugtracker ? may be the Qt team can give you some hints @dario: yes. I plan to do this today. Just submitted a qt bug report at: http://bugreports.qt.nokia.com/browse/QTBUG-6896 Waiting for suggestions/advice. Created attachment 41509 [details]
New crash information added by DrKonqi
Crash happend after exiting Global Keyboard Shortcuts.
Created attachment 41510 [details]
New crash information added by DrKonqi
Crash happend after exiting Global Keyboard Shortcuts.
Created attachment 41511 [details]
New crash information added by DrKonqi
Crash happend after exiting Global Keyboard Shortcuts.
*** Bug 230710 has been marked as a duplicate of this bug. *** Bug 231410 looks like a similar backtrace with a different way to reproduce... it may be useful... *** Bug 231547 has been marked as a duplicate of this bug. *** SVN commit 1106745 by hpereiradacosta: Added protection to disable animation when target is destroyed. CCBUG: 216215 231410 M +8 -0 oxygencomboboxdata.cpp M +3 -0 oxygencomboboxdata.h M +10 -0 oxygenlabeldata.cpp M +3 -0 oxygenlabeldata.h M +18 -3 oxygenlineeditdata.cpp M +4 -5 oxygenlineeditdata.h M +8 -0 oxygenstackedwidgetdata.cpp M +3 -0 oxygenstackedwidgetdata.h WebSVN link: http://websvn.kde.org/?view=rev&revision=1106745 I can no longer reproduce the crash using the steps provided in comment #1 even with Tab transitions enabled. Seems to be fixed now, please reopen if you can reproduce. awesome :) *** Bug 233308 has been marked as a duplicate of this bug. *** Created attachment 43361 [details]
New crash information added by DrKonqi
Crash step:
* Run systemsettings
* Click Mouse/Keyboard
* Click Global Keyboard Shortcuts
* Click "Back" in Toolbar
*** Bug 237253 has been marked as a duplicate of this bug. *** SVN commit 1125643 by hpereiradacosta: Backport r1106745 Added protection to disable animation when target is destroyed. CCBUG: 216215 M +9 -1 oxygencomboboxdata.cpp M +3 -0 oxygencomboboxdata.h M +10 -0 oxygenlabeldata.cpp M +3 -0 oxygenlabeldata.h M +17 -2 oxygenlineeditdata.cpp M +4 -5 oxygenlineeditdata.h M +8 -0 oxygenstackedwidgetdata.cpp M +3 -0 oxygenstackedwidgetdata.h WebSVN link: http://websvn.kde.org/?view=rev&revision=1125643 see comment #30. I just backported to the 4.4 branch the changes of commen #23, which apparently fixed it. Hopefully this will make it into kde4.4.4, if there is such a thing. Hugo Created attachment 60119 [details] New crash information added by DrKonqi systemsettings (1.0) on KDE Platform 4.6.2 (4.6.2) using Qt 4.7.2 - What I was doing when the application crashed: Navigated to "global keyboard shortcuts", I then clicked "standard keyboard shortcuts" and BOOM. Everytime. Crash. Comment #4 is indeed a valid work around for me. I am on KDE 4.6.2. -- Backtrace (Reduced): #6 isWidgetType (this=0x12c42d0) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:156 #7 QWidget::ensurePolished (this=0x12c42d0) at kernel/qwidget.cpp:9602 #8 0x00007f7c15393867 in QWidgetPrivate::activateChildLayoutsRecursively (this=0xe87720) at kernel/qwidget.cpp:7354 #9 0x00007f7c1539388f in QWidgetPrivate::activateChildLayoutsRecursively (this=0xe873d0) at kernel/qwidget.cpp:7367 #10 0x00007f7c1539388f in QWidgetPrivate::activateChildLayoutsRecursively (this=0xe86e80) at kernel/qwidget.cpp:7367 |
Application: systemsettings (1.0) KDE Platform Version: 4.3.77 (KDE 4.3.77 (KDE 4.4 >= 20091123)) (Compiled from sources) Qt Version: 4.6.0 Operating System: Linux 2.6.31.5-0.1-desktop i686 -- Information about the crash: To reproduce: * Run systemsettings * Click Mouse/Keyboard * Click Global Keyboard Shortcuts * Click "Back" in Toolbar The crash can be reproduced everytime. -- Backtrace: Application: System Settings (systemsettings), signal: Segmentation fault [KCrash Handler] #6 QWidget::ensurePolished (this=0x9daee48) at /local/git/Qt/qt/src/gui/kernel/qwidget.cpp:9311 #7 0xb6549774 in QWidgetPrivate::activateChildLayoutsRecursively (this=0x8213308) at /local/git/Qt/qt/src/gui/kernel/qwidget.cpp:7089 #8 0xb654979d in QWidgetPrivate::activateChildLayoutsRecursively (this=0x82130f8) at /local/git/Qt/qt/src/gui/kernel/qwidget.cpp:7102 #9 0xb654979d in QWidgetPrivate::activateChildLayoutsRecursively (this=0x8212fc8) at /local/git/Qt/qt/src/gui/kernel/qwidget.cpp:7102 #10 0xb654979d in QWidgetPrivate::activateChildLayoutsRecursively (this=0x8212e68) at /local/git/Qt/qt/src/gui/kernel/qwidget.cpp:7102 #11 0xb654979d in QWidgetPrivate::activateChildLayoutsRecursively (this=0x80ef640) at /local/git/Qt/qt/src/gui/kernel/qwidget.cpp:7102 #12 0xb654979d in QWidgetPrivate::activateChildLayoutsRecursively (this=0x80eccb8) at /local/git/Qt/qt/src/gui/kernel/qwidget.cpp:7102 #13 0xb654f575 in QWidgetPrivate::prepareToRender (this=0xad7ab48, region=..., renderFlags=...) at /local/git/Qt/qt/src/gui/kernel/qwidget.cpp:5138 #14 0xb655474d in QWidget::render (this=0xacc59b8, target=0xbfa0d630, targetOffset=..., sourceRegion=..., renderFlags=...) at /local/git/Qt/qt/src/gui/kernel/qwidget.cpp:4852 #15 0xb501ec2c in Oxygen::TransitionWidget::grabWidget (this=0x9e63c08, pixmap=..., widget=0xacc59b8, rect=...) at /local/svn/kde/trunk/KDE/kdebase/runtime/kstyles/oxygen/transitions/oxygentransitionwidget.cpp:218 #16 0xb501e28e in Oxygen::TransitionWidget::grab (this=0x9e63c08, widget=0xacc59b8, rect=...) at /local/svn/kde/trunk/KDE/kdebase/runtime/kstyles/oxygen/transitions/oxygentransitionwidget.cpp:91 #17 0xb501b262 in Oxygen::StackedWidgetData::initializeAnimation (this=0x9e64cc0) at /local/svn/kde/trunk/KDE/kdebase/runtime/kstyles/oxygen/transitions/oxygenstackedwidgetdata.cpp:66 #18 0xb501ae14 in Oxygen::StackedWidgetData::qt_metacall (this=0x9e64cc0, _c=InvokeMetaMethod, _id=0, _a=0xbfa0d7e8) at /local/build/KDE/kdebase/runtime/kstyles/oxygen/oxygenstackedwidgetdata.moc:76 #19 0xb5f4f33a in QMetaObject::metacall (object=0x9e64cc0, cl=InvokeMetaMethod, idx=7, argv=0xbfa0d7e8) at /local/git/Qt/qt/src/corelib/kernel/qmetaobject.cpp:237 #20 0xb5f5d91b in QMetaObject::activate (sender=0x9db5748, m=0xb6df88d8, local_signal_index=0, argv=0xbfa0d7e8) at /local/git/Qt/qt/src/corelib/kernel/qobject.cpp:3286 #21 0xb6bf2833 in QStackedWidget::currentChanged (this=0x9db5748, _t1=0) at .moc/release-shared/moc_qstackedwidget.cpp:131 #22 0xb6bf29af in QStackedWidget::qt_metacall (this=0x9db5748, _c=InvokeMetaMethod, _id=0, _a=0xbfa0d908) at .moc/release-shared/moc_qstackedwidget.cpp:88 #23 0xb5f4f33a in QMetaObject::metacall (object=0x9db5748, cl=InvokeMetaMethod, idx=27, argv=0xbfa0d908) at /local/git/Qt/qt/src/corelib/kernel/qmetaobject.cpp:237 #24 0xb5f5d91b in QMetaObject::activate (sender=0x9da1e10, m=0xb6df5258, local_signal_index=1, argv=0xbfa0d908) at /local/git/Qt/qt/src/corelib/kernel/qobject.cpp:3286 #25 0xb6be7603 in QStackedLayout::currentChanged (this=0x9da1e10, _t1=0) at .moc/release-shared/moc_qstackedlayout.cpp:147 #26 0xb65324cd in QStackedLayout::setCurrentIndex (this=0x9da1e10, index=0) at /local/git/Qt/qt/src/gui/kernel/qstackedlayout.cpp:340 #27 0xb65327ed in QStackedLayout::takeAt (this=0x9da1e10, index=0) at /local/git/Qt/qt/src/gui/kernel/qstackedlayout.cpp:265 #28 0xb65220e7 in removeWidgetRecursively (li=<value optimized out>, w=<value optimized out>) at /local/git/Qt/qt/src/gui/kernel/qlayout.cpp:661 #29 0xb64ec696 in QApplicationPrivate::notify_helper (this=0x8087108, receiver=0x9db5748, e=0xbfa0dddc) at /local/git/Qt/qt/src/gui/kernel/qapplication.cpp:4243 #30 0xb64f33b7 in QApplication::notify (this=0xbfa0f494, receiver=0x9db5748, e=0xbfa0dddc) at /local/git/Qt/qt/src/gui/kernel/qapplication.cpp:4217 #31 0xb703783c in KApplication::notify (this=0xbfa0f494, receiver=0x9db5748, event=0xbfa0dddc) at /local/svn/kde/trunk/KDE/kdelibs/kdeui/kernel/kapplication.cpp:302 #32 0xb5f4a12b in QCoreApplication::notifyInternal (this=0xbfa0f494, receiver=0x9db5748, event=0xbfa0dddc) at /local/git/Qt/qt/src/corelib/kernel/qcoreapplication.cpp:704 #33 0xb5f5e856 in sendEvent (event=<value optimized out>, receiver=<value optimized out>) at ../../include/QtCore/../../../../git/Qt/qt/src/corelib/kernel/qcoreapplication.h:215 #34 QObjectPrivate::setParent_helper (event=<value optimized out>, receiver=<value optimized out>) at /local/git/Qt/qt/src/corelib/kernel/qobject.cpp:2016 #35 0xb5f6089c in QObject::~QObject (this=0xad36e00, __in_chrg=<value optimized out>) at /local/git/Qt/qt/src/corelib/kernel/qobject.cpp:994 #36 0xb65522fa in QWidget::~QWidget (this=0xad36e00, __in_chrg=<value optimized out>) at /local/git/Qt/qt/src/gui/kernel/qwidget.cpp:1475 #37 0xb6fc9fbd in KShortcutsEditor::~KShortcutsEditor (this=0xad36e00, __in_chrg=<value optimized out>) at /local/svn/kde/trunk/KDE/kdelibs/kdeui/dialogs/kshortcutseditor.cpp:77 #38 0xaf67810c in ComponentData::~ComponentData (this=0xacc2f80, __in_chrg=<value optimized out>) at /local/svn/kde/trunk/KDE/kdebase/workspace/kcontrol/keys/kglobalshortcutseditor.cpp:97 #39 0xaf67f56f in qDeleteAll<QList<ComponentData*>::const_iterator> (begin=..., end=...) at /local/qt4/include/QtCore/qalgorithms.h:322 #40 0xaf67dccb in qDeleteAll<QList<ComponentData*> > (c=...) at /local/qt4/include/QtCore/qalgorithms.h:330 #41 0xaf678816 in KGlobalShortcutsEditor::~KGlobalShortcutsEditor (this=0x9db6280, __in_chrg=<value optimized out>) at /local/svn/kde/trunk/KDE/kdebase/workspace/kcontrol/keys/kglobalshortcutseditor.cpp:189 #42 0xb5f5972f in QObjectPrivate::deleteChildren (this=0x9db7138) at /local/git/Qt/qt/src/corelib/kernel/qobject.cpp:1990 #43 0xb6552257 in QWidget::~QWidget (this=0x9db40a0, __in_chrg=<value optimized out>) at /local/git/Qt/qt/src/gui/kernel/qwidget.cpp:1459 #44 0xb70fe62f in KCModule::~KCModule (this=0x9db40a0, __in_chrg=<value optimized out>) at /local/svn/kde/trunk/KDE/kdelibs/kdeui/widgets/kcmodule.cpp:188 #45 0xaf68250c in GlobalShortcutsModule::~GlobalShortcutsModule (this=0x9db40a0, __in_chrg=<value optimized out>) at /local/svn/kde/trunk/KDE/kdebase/workspace/kcontrol/keys/globalshortcuts.cpp:54 #46 0xb7457362 in KCModuleProxy::deleteClient (this=0x9db2440) at /local/svn/kde/trunk/KDE/kdelibs/kutils/kcmoduleproxy.cpp:219 #47 0xb74572ab in KCModuleProxy::~KCModuleProxy (this=0x9db2440, __in_chrg=<value optimized out>) at /local/svn/kde/trunk/KDE/kdelibs/kutils/kcmoduleproxy.cpp:210 #48 0xb5f5972f in QObjectPrivate::deleteChildren (this=0x9daf108) at /local/git/Qt/qt/src/corelib/kernel/qobject.cpp:1990 #49 0xb65517b7 in QWidget::~QWidget (this=0x9daf0b8, __in_chrg=<value optimized out>) at /local/git/Qt/qt/src/gui/kernel/qwidget.cpp:1459 #50 0xb5f5972f in QObjectPrivate::deleteChildren (this=0x9daeea8) at /local/git/Qt/qt/src/corelib/kernel/qobject.cpp:1990 #51 0xb6552257 in QWidget::~QWidget (this=0x9daee48, __in_chrg=<value optimized out>) at /local/git/Qt/qt/src/gui/kernel/qwidget.cpp:1459 #52 0xb691f191 in QFrame::~QFrame (this=0x9daee48, __in_chrg=<value optimized out>) at /local/git/Qt/qt/src/gui/widgets/qframe.cpp:242 #53 0xb69ba984 in QAbstractScrollArea::~QAbstractScrollArea (this=0x9daee48, __in_chrg=<value optimized out>) at /local/git/Qt/qt/src/gui/widgets/qabstractscrollarea.cpp:522 #54 0xb69befa5 in QScrollArea::~QScrollArea (this=0x9daee48, __in_chrg=<value optimized out>) at /local/git/Qt/qt/src/gui/widgets/qscrollarea.cpp:176 #55 0xb7086dca in KPageWidgetItem::Private::~Private (this=0x9db2cc8, __in_chrg=<value optimized out>) at /local/svn/kde/trunk/KDE/kdelibs/kdeui/paged/kpagewidgetmodel.cpp:40 #56 0xb7085024 in KPageWidgetItem::~KPageWidgetItem (this=0x9db2ab8, __in_chrg=<value optimized out>) at /local/svn/kde/trunk/KDE/kdelibs/kdeui/paged/kpagewidgetmodel.cpp:84 #57 0xb70853c7 in PageItem::~PageItem (this=0x9da2870, __in_chrg=<value optimized out>) at /local/svn/kde/trunk/KDE/kdelibs/kdeui/paged/kpagewidgetmodel.cpp:174 #58 0xb708638a in KPageWidgetModel::removePage (this=0x82166a8, item=0x9db2ab8) at /local/svn/kde/trunk/KDE/kdelibs/kdeui/paged/kpagewidgetmodel.cpp:481 #59 0xb70847c0 in KPageWidget::removePage (this=0x82122e8, item=0x9db2ab8) at /local/svn/kde/trunk/KDE/kdelibs/kdeui/paged/kpagewidget.cpp:113 #60 0xb74296aa in ModuleView::closeModules (this=0x80f4f20) at /local/svn/kde/trunk/KDE/kdebase/workspace/systemsettings/core/ModuleView.cpp:252 #61 0xb2f7e6be in IconMode::backToOverview (this=0x8210230) at /local/svn/kde/trunk/KDE/kdebase/workspace/systemsettings/icons/IconMode.cpp:152 #62 0xb2f7ec99 in IconMode::qt_metacall (this=0x8210230, _c=InvokeMetaMethod, _id=3, _a=0xbfa0e4e8) at /local/build/KDE/kdebase/workspace/systemsettings/icons/IconMode.moc:82 #63 0xb5f4f33a in QMetaObject::metacall (object=0x8210230, cl=InvokeMetaMethod, idx=14, argv=0xbfa0e4e8) at /local/git/Qt/qt/src/corelib/kernel/qmetaobject.cpp:237 #64 0xb5f5d91b in QMetaObject::activate (sender=0x820fd98, m=0xb6de42b8, local_signal_index=1, argv=0xbfa0e4e8) at /local/git/Qt/qt/src/corelib/kernel/qobject.cpp:3286 #65 0xb64e5f29 in QAction::triggered (this=0x820fd98, _t1=false) at .moc/release-shared/moc_qaction.cpp:263 #66 0xb64e813c in QAction::activate (this=0x820fd98, event=Trigger) at /local/git/Qt/qt/src/gui/kernel/qaction.cpp:1251 #67 0xb69b2402 in trigger (this=<value optimized out>) at ../../include/QtGui/../../../../git/Qt/qt/src/gui/kernel/qaction.h:218 #68 QToolButton::nextCheckState (this=<value optimized out>) at /local/git/Qt/qt/src/gui/widgets/qtoolbutton.cpp:1147 #69 0xb68cfba3 in QAbstractButtonPrivate::click (this=0x827d108) at /local/git/Qt/qt/src/gui/widgets/qabstractbutton.cpp:528 #70 0xb68cfe91 in QAbstractButton::mouseReleaseEvent (this=0x8102920, e=0xbfa0ed04) at /local/git/Qt/qt/src/gui/widgets/qabstractbutton.cpp:1118 #71 0xb69b28cc in QToolButton::mouseReleaseEvent (this=0x8102920, e=0xbfa0ed04) at /local/git/Qt/qt/src/gui/widgets/qtoolbutton.cpp:721 #72 0xb654a36e in QWidget::event (this=0x8102920, event=0xbfa0ed04) at /local/git/Qt/qt/src/gui/kernel/qwidget.cpp:7976 #73 0xb68cec3e in QAbstractButton::event (this=0x8102920, e=0x9db2e18) at /local/git/Qt/qt/src/gui/widgets/qabstractbutton.cpp:1080 #74 0xb69b53fa in QToolButton::event (this=0x8102920, event=0xbfa0ed04) at /local/git/Qt/qt/src/gui/widgets/qtoolbutton.cpp:1163 #75 0xb64ec6cc in QApplicationPrivate::notify_helper (this=0x8087108, receiver=0x8102920, e=0xbfa0ed04) at /local/git/Qt/qt/src/gui/kernel/qapplication.cpp:4252 #76 0xb64f3c6b in QApplication::notify (this=0xbfa0f494, receiver=0x8102920, e=0xbfa0ed04) at /local/git/Qt/qt/src/gui/kernel/qapplication.cpp:3823 #77 0xb703783c in KApplication::notify (this=0xbfa0f494, receiver=0x8102920, event=0xbfa0ed04) at /local/svn/kde/trunk/KDE/kdelibs/kdeui/kernel/kapplication.cpp:302 #78 0xb5f4a12b in QCoreApplication::notifyInternal (this=0xbfa0f494, receiver=0x8102920, event=0xbfa0ed04) at /local/git/Qt/qt/src/corelib/kernel/qcoreapplication.cpp:704 #79 0xb64f2c1f in sendEvent (event=<value optimized out>, receiver=0x8102920) at ../../include/QtCore/../../../../git/Qt/qt/src/corelib/kernel/qcoreapplication.h:215 #80 QApplicationPrivate::sendMouseEvent (event=<value optimized out>, receiver=0x8102920) at /local/git/Qt/qt/src/gui/kernel/qapplication.cpp:2957 #81 0xb657c9f4 in QETWidget::translateMouseEvent (this=0x81401d0, event=0xbfa0f150) at /local/git/Qt/qt/src/gui/kernel/qapplication_x11.cpp:4368 #82 0xb657bf5b in QApplication::x11ProcessEvent (this=0xbfa0f494, event=0xbfa0f150) at /local/git/Qt/qt/src/gui/kernel/qapplication_x11.cpp:3379 #83 0xb65a8a72 in x11EventSourceDispatch (s=0x8089f40, callback=0, user_data=0x0) at /local/git/Qt/qt/src/gui/kernel/qguieventdispatcher_glib.cpp:146 #84 0xb561f4c2 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0 #85 0xb5622d98 in ?? () from /usr/lib/libglib-2.0.so.0 #86 0xb5622ebe in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0 #87 0xb5f75c95 in QEventDispatcherGlib::processEvents (this=0x8086d28, flags=...) at /local/git/Qt/qt/src/corelib/kernel/qeventdispatcher_glib.cpp:407 #88 0xb65a85d5 in QGuiEventDispatcherGlib::processEvents (this=0x8086d28, flags=...) at /local/git/Qt/qt/src/gui/kernel/qguieventdispatcher_glib.cpp:202 #89 0xb5f48759 in QEventLoop::processEvents (this=0xbfa0f414, flags=) at /local/git/Qt/qt/src/corelib/kernel/qeventloop.cpp:149 #90 0xb5f48baa in QEventLoop::exec (this=0xbfa0f414, flags=...) at /local/git/Qt/qt/src/corelib/kernel/qeventloop.cpp:201 #91 0xb5f4cd2f in QCoreApplication::exec () at /local/git/Qt/qt/src/corelib/kernel/qcoreapplication.cpp:981 #92 0xb64ec767 in QApplication::exec () at /local/git/Qt/qt/src/gui/kernel/qapplication.cpp:3571 #93 0x08059a8d in main (argc=5, argv=0xbfa0f5c4) at /local/svn/kde/trunk/KDE/kdebase/workspace/systemsettings/app/main.cpp:49 Reported using DrKonqi