Application: kate (3.4.2)
KDE Platform Version: 4.4.2 (KDE 4.4.2)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-23-generic x86_64
Distribution: Ubuntu 10.04 LTS

-- Information about the crash:
The title says it all.  I'm running Ubuntu 10.04 and used Synaptic to install Kate and the necessary KDE libraries.

The crash can be reproduced some of the time.

 -- Backtrace:
Application: Kate (kdeinit4), signal: Segmentation fault
[KCrash Handler]
#5  0x00007f2c4bac50db in KateViewDocumentProxyModel::sort (this=0x29438b0) at ../../../kate/app/kateviewdocumentproxymodel.cpp:649
#6  0x00007f2c4bac60e8 in KateViewDocumentProxyModel::opened (this=0x29438b0, index=...) at ../../../kate/app/kateviewdocumentproxymodel.cpp:216
#7  0x00007f2c4ba99c8f in KateMainWindow::slotWindowActivated (this=0x28b8bf0) at ../../../kate/app/katemainwindow.cpp:566
#8  0x00007f2c4ba9e613 in KateMainWindow::qt_metacall (this=0x28b8bf0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffe2b40840) at ./katemainwindow.moc:181
#9  0x00007f2c5313de3f in QMetaObject::activate (sender=0x29d7c10, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x12) at kernel/qobject.cpp:3293
#10 0x00007f2c4baa364c in KateViewManager::activateView (this=0x29d7c10, view=0x30f53f0) at ../../../kate/app/kateviewmanager.cpp:469
#11 0x00007f2c4baa49db in KateViewManager::activateView (this=0x29d7c10, d=0x30daeb0) at ../../../kate/app/kateviewmanager.cpp:482
#12 0x00007f2c4baa50ce in KateViewManager::activateDocument (this=0x29d7c10, index=<value optimized out>) at ../../../kate/app/kateviewmanager.cpp:103
#13 0x00007f2c4baa57ea in KateViewManager::qt_metacall (this=0x29d7c10, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffe2b40a70) at ./kateviewmanager.moc:127
#14 0x00007f2c5313de3f in QMetaObject::activate (sender=0x2939560, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x12) at kernel/qobject.cpp:3293
#15 0x00007f2c527e38e5 in QAbstractItemView::activated (this=0x7f2c51df0e40, _t1=<value optimized out>) at .moc/release-shared/moc_qabstractitemview.cpp:345
#16 0x00007f2c527f09ed in QAbstractItemView::mouseReleaseEvent (this=0x2939560, event=0x7fffe2b41880) at itemviews/qabstractitemview.cpp:1784
#17 0x00007f2c5280692e in QListView::mouseReleaseEvent (this=0x7f2c51df0e40, e=0x0) at itemviews/qlistview.cpp:796
#18 0x00007f2c4ba9328f in KateFileList::mouseReleaseEvent (this=0x2939560, event=0x7fffe2b41880) at ../../../kate/app/katefilelist.cpp:92
#19 0x00007f2c5231d582 in QWidget::event (this=0x2939560, event=0x7fffe2b41880) at kernel/qwidget.cpp:7998
#20 0x00007f2c526c44e6 in QFrame::event (this=0x2939560, e=0x7fffe2b41880) at widgets/qframe.cpp:557
#21 0x00007f2c527f326b in QAbstractItemView::viewportEvent (this=0x2939560, event=0x7fffe2b41880) at itemviews/qabstractitemview.cpp:1610
#22 0x00007f2c5312a487 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x2938470, event=0x7fffe2b41880) at kernel/qcoreapplication.cpp:819
#23 0x00007f2c522c71fc in QApplicationPrivate::notify_helper (this=0x2501430, receiver=0x2938470, e=0x7fffe2b41880) at kernel/qapplication.cpp:4296
#24 0x00007f2c522cdecb in QApplication::notify (this=0x7fffe2b42610, receiver=0x2938470, e=0x7fffe2b41880) at kernel/qapplication.cpp:3865
#25 0x00007f2c53672526 in KApplication::notify (this=0x7fffe2b42610, receiver=0x2938470, event=0x7fffe2b41880) at ../../kdeui/kernel/kapplication.cpp:302
#26 0x00007f2c5312b06c in QCoreApplication::notifyInternal (this=0x7fffe2b42610, receiver=0x2938470, event=0x7fffe2b41880) at kernel/qcoreapplication.cpp:704
#27 0x00007f2c522cd0ae in QCoreApplication::sendEvent (receiver=0x2938470, event=0x7fffe2b41880, alienWidget=0x2938470, nativeWidget=0x2ad67a0, buttonDown=<value optimized out>, 
    lastMouseReceiver=<value optimized out>, spontaneous=true) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#28 QApplicationPrivate::sendMouseEvent (receiver=0x2938470, event=0x7fffe2b41880, alienWidget=0x2938470, nativeWidget=0x2ad67a0, buttonDown=<value optimized out>, 
    lastMouseReceiver=<value optimized out>, spontaneous=true) at kernel/qapplication.cpp:2965
#29 0x00007f2c5234cf65 in QETWidget::translateMouseEvent (this=0x2ad67a0, event=<value optimized out>) at kernel/qapplication_x11.cpp:4368
#30 0x00007f2c5234b8ac in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fffe2b421a0) at kernel/qapplication_x11.cpp:3501
#31 0x00007f2c52377882 in x11EventSourceDispatch (s=0x2504a30, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#32 0x00007f2c4e50c8c2 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#33 0x00007f2c4e510748 in ?? () from /lib/libglib-2.0.so.0
#34 0x00007f2c4e5108fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#35 0x00007f2c53154513 in QEventDispatcherGlib::processEvents (this=0x248c140, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#36 0x00007f2c5237746e in QGuiEventDispatcherGlib::processEvents (this=0x7f2c51df0e40, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#37 0x00007f2c53129992 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#38 0x00007f2c53129d6c in QEventLoop::exec (this=0x7fffe2b424d0, flags=) at kernel/qeventloop.cpp:201
#39 0x00007f2c5312daab in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#40 0x00007f2c4bcedeed in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../../kate/app/katemain.cpp:377
#41 0x00000000004070f3 in launch (argc=1, _name=<value optimized out>, args=<value optimized out>, cwd=<value optimized out>, envc=1, 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=7, 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=2, argv=<value optimized out>, envp=<value optimized out>) at ../../kinit/kinit.cpp:1845

Possible duplicates by query: bug 244452, bug 243981, bug 243931, bug 243772, bug 242355.

Reported using DrKonqi