Bug 232502

Application: kwrite (4.4.1 (KDE 4.4.1))
KDE Platform Version: 4.4.1 (KDE 4.4.1)
Qt Version: 4.6.1
Operating System: Linux 2.6.31.12-server-3mnb i686
Distribution: "Mandriva Linux 2010.0"

-- Information about the crash:
1) Open KWrite (first window)
2) Copy and paste any text into kwrite
3) Click on the 'open'
4) Select any text file, and click OK (second window kwrite)
5) Try colose first window, do not save!
6) Crash


The crash can be reproduced every time.

 -- Backtrace:
Application: KWrite (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb54b46d0 (LWP 28678))]

Thread 2 (Thread 0xb0239b70 (LWP 28679)):
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb6a5d9e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i686/libpthread.so.0
#2  0xb0433127 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0xb050f1a0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2304
#3  0xb043316f in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0xb050f1a0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1438
#4  0xb6a59885 in start_thread () from /lib/i686/libpthread.so.0
#5  0xb5e4e57e in clone () from /lib/i686/libc.so.6

Thread 1 (Thread 0xb54b46d0 (LWP 28678)):
[KCrash Handler]
#6  0xb6505b14 in QAbstractButton::isChecked (this=0x640069) at widgets/qabstractbutton.cpp:770
#7  0xaf2b3ba7 in ~KFileAudioPreview (this=0x9a51590) at /usr/src/debug/kdelibs-4.4.1/interfaces/kmediaplayer/kfileaudiopreview/kfileaudiopreview.cpp:105
#8  0xb6be6aac in QObjectPrivate::deleteChildren (this=0x99cf0f8) at kernel/qobject.cpp:1978
#9  0xb6153bd0 in ~QWidget (this=0x9928740) at kernel/qwidget.cpp:1460
#10 0xb6558cdf in ~QFrame (this=0x9928740) at widgets/qframe.cpp:242
#11 0xb65c6be5 in ~QStackedWidget (this=0x9928740) at widgets/qstackedwidget.cpp:151
#12 0xb6be6aac in QObjectPrivate::deleteChildren (this=0x998d0d0) at kernel/qobject.cpp:1978
#13 0xb6153bd0 in ~QWidget (this=0x999c770) at kernel/qwidget.cpp:1460
#14 0xb72f1dc7 in ~KPreviewWidgetBase (this=0x999c770) at /usr/src/debug/kdelibs-4.4.1/kio/kfile/kpreviewwidgetbase.cpp:25
#15 0xb72dee88 in ~KFileMetaPreview (this=0x999c770) at /usr/src/debug/kdelibs-4.4.1/kio/kfile/kfilemetapreview.cpp:36
#16 0xb1f0ddde in ~Private (this=0x9927668) at /usr/src/debug/kdelibs-4.4.1/kfile/kdiroperator.cpp:346
#17 0xb1f0dfb4 in ~KDirOperator (this=0x9910208) at /usr/src/debug/kdelibs-4.4.1/kfile/kdiroperator.cpp:423
#18 0xb1f29795 in ~KFileWidget (this=0x98f77a8) at /usr/src/debug/kdelibs-4.4.1/kfile/kfilewidget.cpp:107
#19 0xb6be6aac in QObjectPrivate::deleteChildren (this=0x98e2008) at kernel/qobject.cpp:1978
#20 0xb6153bd0 in ~QWidget (this=0xbfeac2a0) at kernel/qwidget.cpp:1460
#21 0xb6640494 in ~QDialog (this=0xbfeac2a0) at dialogs/qdialog.cpp:312
#22 0xb6e1f4f4 in ~KDialog (this=0xbfeac2a0) at /usr/src/debug/kdelibs-4.4.1/kdeui/dialogs/kdialog.cpp:198
#23 0xb72d52e6 in ~KFileDialog (this=0xbfeac2a0) at /usr/src/debug/kdelibs-4.4.1/kio/kfile/kfiledialog.cpp:326
#24 0xb72d2160 in ~KEncodingFileDialog (this=0xbfeac2a0) at /usr/src/debug/kdelibs-4.4.1/kio/kfile/kencodingfiledialog.cpp:89
#25 0xb6be6aac in QObjectPrivate::deleteChildren (this=0x95dd700) at kernel/qobject.cpp:1978
#26 0xb6153bd0 in ~QWidget (this=0x95ddc68) at kernel/qwidget.cpp:1460
#27 0xb6576bff in ~QMainWindow (this=0x95ddc68) at widgets/qmainwindow.cpp:343
#28 0xb6fbdcc4 in ~KMainWindow (this=0x95ddc68) at /usr/src/debug/kdelibs-4.4.1/kdeui/widgets/kmainwindow.cpp:476
#29 0xb700454a in ~KXmlGuiWindow (this=0x95ddc68, __vtt_parm=0xb519ba28) at /usr/src/debug/kdelibs-4.4.1/kdeui/xmlgui/kxmlguiwindow.cpp:127
#30 0xb74fe75b in ~MainWindow (this=0x95ddc68, __vtt_parm=0xb519ba24) at /usr/src/debug/kdelibs-4.4.1/kparts/mainwindow.cpp:77
#31 0xb519084a in ~KWrite (this=0x95ddc68) at /usr/src/debug/kdebase-4.4.1/apps/kwrite/kwritemain.cpp:146
#32 0xb6be6693 in qDeleteInEventHandler (o=0x640069) at kernel/qobject.cpp:3972
#33 0xb6be7e18 in QObject::event (this=0x95ddc68, e=0xffffffb8) at kernel/qobject.cpp:1223
#34 0xb614b8f0 in QWidget::event (this=0x95ddc68, event=0x99e2ab8) at kernel/qwidget.cpp:8435
#35 0xb6577b14 in QMainWindow::event (this=0x95ddc68, event=0x99e2ab8) at widgets/qmainwindow.cpp:1435
#36 0xb6fbb8b4 in KMainWindow::event (this=0x95ddc68, ev=0x99e2ab8) at /usr/src/debug/kdelibs-4.4.1/kdeui/widgets/kmainwindow.cpp:1103
#37 0xb7004e32 in KXmlGuiWindow::event (this=0x95ddc68, ev=0x99e2ab8) at /usr/src/debug/kdelibs-4.4.1/kdeui/xmlgui/kxmlguiwindow.cpp:131
#38 0xb60eb72c in QApplicationPrivate::notify_helper (this=0x9512c88, receiver=0x95ddc68, e=0x99e2ab8) at kernel/qapplication.cpp:4298
#39 0xb60f2608 in QApplication::notify (this=0x95ddc68, receiver=0x95ddc68, e=0x99e2ab8) at kernel/qapplication.cpp:4263
#40 0xb6ec3081 in KApplication::notify (this=0xbfead428, receiver=0x95ddc68, event=0x99e2ab8) at /usr/src/debug/kdelibs-4.4.1/kdeui/kernel/kapplication.cpp:302
#41 0xb6bd6f7e in QCoreApplication::notifyInternal (this=0xbfead428, receiver=0x95ddc68, event=0x99e2ab8) at kernel/qcoreapplication.cpp:704
#42 0xb6bd9983 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x9491e58) at kernel/qcoreapplication.h:215
#43 0xb6bd9adc in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1238
#44 0xb6c03fdd in postEventSourceDispatch (s=0x9515938) at kernel/qcoreapplication.h:220
#45 0xb5874b92 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#46 0xb5878468 in ?? () from /usr/lib/libglib-2.0.so.0
#47 0xb587858e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#48 0xb6c03ac1 in QEventDispatcherGlib::processEvents (this=0x9512c68, flags={i = 36}) at kernel/qeventdispatcher_glib.cpp:412
#49 0xb61abdba in QGuiEventDispatcherGlib::processEvents (this=0x9512c68, flags={i = 36}) at kernel/qguieventdispatcher_glib.cpp:204
#50 0xb6bd55ed in QEventLoop::processEvents (this=0x9a18658, flags=) at kernel/qeventloop.cpp:149
#51 0xb6bd5a39 in QEventLoop::exec (this=0x9a18658, flags={i = 0}) at kernel/qeventloop.cpp:201
#52 0xb3f41ff0 in PulseSupport (this=0x9a9af98) at /usr/src/debug/phonon-4.3.80/phonon/pulsesupport.cpp:667
#53 0xb3f42068 in Phonon::PulseSupport::getInstance () at /usr/src/debug/phonon-4.3.80/phonon/pulsesupport.cpp:618
#54 0xaf288d0b in Backend (this=0x9884930, parent=0x0) at /usr/src/debug/phonon-4.3.80/gstreamer/backend.cpp:55
#55 0xaf28928b in qt_plugin_instance () at /usr/src/debug/phonon-4.3.80/gstreamer/backend.cpp:38
#56 0xb6bbacf4 in QPluginLoader::instance (this=0xbfeaa9d4) at plugin/qpluginloader.cpp:204
#57 0xaf4db5f4 in Phonon::KdePlatformPlugin::createBackend (this=0x96524a0, newService={d = 0x9a80f08}) at /usr/src/debug/kdebase-runtime-4.4.1/phonon/platform_kde/kdeplatformplugin.cpp:155
#58 0xaf4dc940 in Phonon::KdePlatformPlugin::createBackend (this=0x96524a0) at /usr/src/debug/kdebase-runtime-4.4.1/phonon/platform_kde/kdeplatformplugin.cpp:204
#59 0xb3f31a0a in Phonon::FactoryPrivate::createBackend (this=0x9aa13b0) at /usr/src/debug/phonon-4.3.80/phonon/factory.cpp:118
#60 0xb3f33613 in Phonon::Factory::backend (createWhenNull=true) at /usr/src/debug/phonon-4.3.80/phonon/factory.cpp:417
#61 0xb3f2b106 in Phonon::BackendCapabilities::availableMimeTypes () at /usr/src/debug/phonon-4.3.80/phonon/backendcapabilities.cpp:51
#62 0xaf2b405c in KFileAudioPreview (this=0x9a51590, parent=0x9928740) at /usr/src/debug/kdelibs-4.4.1/interfaces/kmediaplayer/kfileaudiopreview/kfileaudiopreview.cpp:79
#63 0xaf2b516f in KPluginFactory::createInstance<KFileAudioPreview, QWidget> (parentWidget=0x9928740, parent=0x9928740, args=@0xbfeaadd8)
    at /usr/src/debug/kdelibs-4.4.1/kdecore/util/kpluginfactory.h:461
#64 0xb7724ea9 in KPluginFactory::create (this=0x9a6b028, iface=0xb7361400 "KPreviewWidgetBase", parentWidget=0x9928740, parent=0x9928740, args=@0xbfeaadd8, keyword=@0xbfeaadd0)
    at /usr/src/debug/kdelibs-4.4.1/kdecore/util/kpluginfactory.cpp:191
#65 0xb72df094 in KFileMetaPreview::createAudioPreview (parent=0x9928740) at /usr/src/debug/kdelibs-4.4.1/kdecore/util/kpluginfactory.h:491
#66 0xb72dff6b in KFileMetaPreview::previewProviderFor (this=0x999c770, mimeType=@0xbfeaaea8) at /usr/src/debug/kdelibs-4.4.1/kio/kfile/kfilemetapreview.cpp:109
#67 0xb72df257 in KFileMetaPreview::showPreview (this=0x999c770, url=@0x99276dc) at /usr/src/debug/kdelibs-4.4.1/kio/kfile/kfilemetapreview.cpp:140
#68 0xb1f0aa70 in KDirOperator::Private::_k_showPreview (this=0x9927668) at /usr/src/debug/kdelibs-4.4.1/kfile/kdiroperator.cpp:2444
#69 0xb1f0b1c7 in KDirOperator::Private::_k_triggerPreview (this=0x9927668, index=@0x9a47f68) at /usr/src/debug/kdelibs-4.4.1/kfile/kdiroperator.cpp:2434
#70 0xb1f17f46 in KDirOperator::qt_metacall (this=0x9910208, _c=QMetaObject::InvokeMetaMethod, _id=63, _a=0xbfeab048) at /usr/src/debug/kdelibs-4.4.1/build/kfile/kdiroperator.moc:255
#71 0xb6bdc2ed in QMetaObject::metacall (object=0x9910208, cl=3052233600, idx=90, argv=0xbfeab048) at kernel/qmetaobject.cpp:237
#72 0xb6beb11a in QMetaObject::activate (sender=0x9990358, m=0xb6a42204, local_signal_index=4, argv=0xbfeab048) at kernel/qobject.cpp:3267
#73 0xb669d045 in QAbstractItemView::entered (this=0x9990358, _t1=@0x9a47f68) at .moc/release-shared/moc_qabstractitemview.cpp:352
#74 0xb66a1ea0 in QAbstractItemViewPrivate::checkMouseMove (this=0x98ee5d0, index=@0xbfeab178) at itemviews/qabstractitemview.cpp:163
#75 0xb66a9856 in QAbstractItemView::mouseMoveEvent (this=0x9990358, event=0xbfeaba80) at itemviews/qabstractitemview.cpp:1703
#76 0xb66c370f in QListView::mouseMoveEvent (this=0x9990358, e=0xbfeaba80) at itemviews/qlistview.cpp:778
#77 0xb614bf88 in QWidget::event (this=0x9990358, event=0xbfeaba80) at kernel/qwidget.cpp:7963
#78 0xb6558985 in QFrame::event (this=0x9990358, e=0xbfeaba80) at widgets/qframe.cpp:557
#79 0xb65f5721 in QAbstractScrollArea::viewportEvent (this=0xb5ed6380, e=0xffffffb8) at widgets/qabstractscrollarea.cpp:1036
#80 0xb66ae25c in QAbstractItemView::viewportEvent (this=0x9990358, event=0xbfeaba80) at itemviews/qabstractitemview.cpp:1603
#81 0xb65f8016 in QAbstractScrollAreaFilter::eventFilter (this=0x99d1cd8, o=0x98f7700, e=0xbfeaba80) at widgets/qabstractscrollarea_p.h:100
#82 0xb6bd624e in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x9512c88, receiver=0x98f7700, event=0xbfeaba80) at kernel/qcoreapplication.cpp:819
#83 0xb60eb6fd in QApplicationPrivate::notify_helper (this=0x9512c88, receiver=0x98f7700, e=0xbfeaba80) at kernel/qapplication.cpp:4294
#84 0xb60f2f3e in QApplication::notify (this=0xbfeab7b4, receiver=0x98f7700, e=0xbfeaba80) at kernel/qapplication.cpp:3863
#85 0xb6ec3081 in KApplication::notify (this=0xbfead428, receiver=0x98f7700, event=0xbfeaba80) at /usr/src/debug/kdelibs-4.4.1/kdeui/kernel/kapplication.cpp:302
#86 0xb6bd6f7e in QCoreApplication::notifyInternal (this=0xbfead428, receiver=0x98f7700, event=0xbfeaba80) at kernel/qcoreapplication.cpp:704
#87 0xb60f1e84 in QApplicationPrivate::sendMouseEvent (receiver=0x98f7700, event=0xbfeaba80, alienWidget=0x98f7700, nativeWidget=0xbfeac2a0, buttonDown=0xb6a51018, lastMouseReceiver=@0xb6a5101c, 
    spontaneous=true) at ../../src/corelib/kernel/qcoreapplication.h:218
#88 0xb617f5aa in QETWidget::translateMouseEvent (this=0xbfeac2a0, event=0xbfeabf8c) at kernel/qapplication_x11.cpp:4368
#89 0xb617eb54 in QApplication::x11ProcessEvent (this=0xbfead428, event=0xbfeabf8c) at kernel/qapplication_x11.cpp:3379
#90 0xb61ac268 in x11EventSourceDispatch (s=0x9515e40, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#91 0xb5874b92 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#92 0xb5878468 in ?? () from /usr/lib/libglib-2.0.so.0
#93 0xb587858e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#94 0xb6c03ac1 in QEventDispatcherGlib::processEvents (this=0x9512c68, flags={i = 100}) at kernel/qeventdispatcher_glib.cpp:412
#95 0xb61abdba in QGuiEventDispatcherGlib::processEvents (this=0x9512c68, flags={i = 100}) at kernel/qguieventdispatcher_glib.cpp:204
#96 0xb6bd55ed in QEventLoop::processEvents (this=0xbfeac240, flags=) at kernel/qeventloop.cpp:149
#97 0xb6bd5a39 in QEventLoop::exec (this=0xbfeac240, flags={i = 64}) at kernel/qeventloop.cpp:201
#98 0xb6641271 in QDialog::exec (this=0xbfeac2a0) at dialogs/qdialog.cpp:530
#99 0xb72d2e3c in KEncodingFileDialog::getOpenUrlsAndEncoding (encoding=@0x964f9ac, startDir=@0xbfeac34c, filter=@0xbfeac348, parent=0x95ddc68, caption=@0xbfeac344)
    at /usr/src/debug/kdelibs-4.4.1/kio/kfile/kencodingfiledialog.cpp:162
#100 0xb51968be in KWrite::slotOpen (this=0x95ddc68) at /usr/src/debug/kdebase-4.4.1/apps/kwrite/kwritemain.cpp:268
#101 0xb5196b29 in KWrite::qt_metacall (this=0x95ddc68, _c=QMetaObject::InvokeMetaMethod, _id=52, _a=0xbfeac488) at /usr/src/debug/kdebase-4.4.1/build/apps/kwrite/kwritemain.moc:110
#102 0xb6bdc2ed in QMetaObject::metacall (object=0x95ddc68, cl=3052233600, idx=52, argv=0xbfeac488) at kernel/qmetaobject.cpp:237
#103 0xb6beb11a in QMetaObject::activate (sender=0x989adb0, m=0xb6a36038, local_signal_index=1, argv=0xbfeac488) at kernel/qobject.cpp:3267
#104 0xb60e4c8d in QAction::triggered (this=0x989adb0, _t1=false) at .moc/release-shared/moc_qaction.cpp:263
#105 0xb60e6f9c in QAction::activate (this=0x989adb0, event=QAction::Trigger) at kernel/qaction.cpp:1251
#106 0xb65eecc0 in QToolButton::nextCheckState (this=0xffffffb8) at ../../src/gui/kernel/qaction.h:218
#107 0xb6507797 in QAbstractButtonPrivate::click (this=0x98bdfb0) at widgets/qabstractbutton.cpp:528
#108 0xb6507a96 in QAbstractButton::mouseReleaseEvent (this=0x98c7548, e=0xbfeacbc0) at widgets/qabstractbutton.cpp:1121
#109 0xb65ef19d in QToolButton::mouseReleaseEvent (this=0x98c7548, e=0xbfeacbc0) at widgets/qtoolbutton.cpp:721
#110 0xb614c39b in QWidget::event (this=0x98c7548, event=0xbfeacbc0) at kernel/qwidget.cpp:7978
#111 0xb6506720 in QAbstractButton::event (this=0x98c7548, e=0xffffffb8) at widgets/qabstractbutton.cpp:1080
#112 0xb65f1cfc in QToolButton::event (this=0x98c7548, event=0xbfeacbc0) at widgets/qtoolbutton.cpp:1163
#113 0xb60eb72c in QApplicationPrivate::notify_helper (this=0x9512c88, receiver=0x98c7548, e=0xbfeacbc0) at kernel/qapplication.cpp:4298
#114 0xb60f2f3e in QApplication::notify (this=0xbfeac8f4, receiver=0x98c7548, e=0xbfeacbc0) at kernel/qapplication.cpp:3863
#115 0xb6ec3081 in KApplication::notify (this=0xbfead428, receiver=0x98c7548, event=0xbfeacbc0) at /usr/src/debug/kdelibs-4.4.1/kdeui/kernel/kapplication.cpp:302
#116 0xb6bd6f7e in QCoreApplication::notifyInternal (this=0xbfead428, receiver=0x98c7548, event=0xbfeacbc0) at kernel/qcoreapplication.cpp:704
#117 0xb60f1e84 in QApplicationPrivate::sendMouseEvent (receiver=0x98c7548, event=0xbfeacbc0, alienWidget=0x98c7548, nativeWidget=0x98bed90, buttonDown=0xb6a51018, lastMouseReceiver=@0xb6a5101c, 
    spontaneous=true) at ../../src/corelib/kernel/qcoreapplication.h:218
#118 0xb617f5aa in QETWidget::translateMouseEvent (this=0x98bed90, event=0xbfead0cc) at kernel/qapplication_x11.cpp:4368
#119 0xb617eb54 in QApplication::x11ProcessEvent (this=0xbfead428, event=0xbfead0cc) at kernel/qapplication_x11.cpp:3379
#120 0xb61ac268 in x11EventSourceDispatch (s=0x9515e40, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#121 0xb5874b92 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#122 0xb5878468 in ?? () from /usr/lib/libglib-2.0.so.0
#123 0xb587858e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#124 0xb6c03ac1 in QEventDispatcherGlib::processEvents (this=0x9512c68, flags={i = 36}) at kernel/qeventdispatcher_glib.cpp:412
#125 0xb61abdba in QGuiEventDispatcherGlib::processEvents (this=0x9512c68, flags={i = 36}) at kernel/qguieventdispatcher_glib.cpp:204
#126 0xb6bd55ed in QEventLoop::processEvents (this=0xbfead384, flags=) at kernel/qeventloop.cpp:149
#127 0xb6bd5a39 in QEventLoop::exec (this=0xbfead384, flags={i = 0}) at kernel/qeventloop.cpp:201
#128 0xb6bd9bb0 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#129 0xb60eb7d4 in QApplication::exec () at kernel/qapplication.cpp:3577
#130 0xb5192f37 in kdemain (argc=1, argv=0x94d2870) at /usr/src/debug/kdebase-4.4.1/apps/kwrite/kwritemain.cpp:691
#131 0x0804dc3f in launch (argc=156103044, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=1, envs=0x94df178 "DISPLAY=:0.0", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x94df189 "szylserver;1269800230;226901;5367_TIME38432652") at /usr/src/debug/kdelibs-4.4.1/kinit/kinit.cpp:717
#132 0x0804e8d7 in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at /usr/src/debug/kdelibs-4.4.1/kinit/kinit.cpp:1209
#133 0x0804ed24 in handle_requests (waitForPid=<value optimized out>) at /usr/src/debug/kdelibs-4.4.1/kinit/kinit.cpp:1402
#134 0x0804fabf in main (argc=4, argv=0xbfeae024, envp=0xbfeae038) at /usr/src/debug/kdelibs-4.4.1/kinit/kinit.cpp:1841

Possible duplicates by query: bug 230147, bug 221851, bug 213008.

Reported using DrKonqi