Application: kate (3.12.3)
KDE Platform Version: 4.12.3
Qt Version: 4.8.2
Operating System: Linux 3.2.0-61-generic x86_64
Distribution: Ubuntu 12.04.4 LTS

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

I tried to save and kate crashed. It happens from time to time, but not always during save. I use kate project plugin and multiple tab was open.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Kate (kate), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fb9fd457780 (LWP 9903))]

Thread 6 (Thread 0x7fb9e05dc700 (LWP 9904)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fb9ea8fb022 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007fb9ea8fb059 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007fb9fa37de9a in start_thread (arg=0x7fb9e05dc700) at pthread_create.c:308
#4  0x00007fb9fcda43fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7fb95cfa2700 (LWP 9906)):
#0  0x00007fb9fcd98a43 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fb9f9eb0ff6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb9f9eb1124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb9fac73926 in QEventDispatcherGlib::processEvents (this=0x7fb9580008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fb9fac42e62 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fb9fac430b7 in QEventLoop::exec (this=0x7fb95cfa1dd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fb9fab42077 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007fb9fac22b6f in QInotifyFileSystemWatcherEngine::run (this=0x2b1bdd0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fb9fab4509b in QThreadPrivate::start (arg=0x2b1bdd0) at thread/qthread_unix.cpp:307
#9  0x00007fb9fa37de9a in start_thread (arg=0x7fb95cfa2700) at pthread_create.c:308
#10 0x00007fb9fcda43fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fb957fff700 (LWP 9911)):
#0  0x00007fb9fcd96ffd in read () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007fb9f9eeb8df in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb9f9eb0b64 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb9f9eb0f96 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb9f9eb1124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fb9fac73926 in QEventDispatcherGlib::processEvents (this=0x7fb9500008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fb9fac42e62 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fb9fac430b7 in QEventLoop::exec (this=0x7fb957ffedd0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fb9fab42077 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007fb9fac22b6f in QInotifyFileSystemWatcherEngine::run (this=0x2bc3790) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007fb9fab4509b in QThreadPrivate::start (arg=0x2bc3790) at thread/qthread_unix.cpp:307
#11 0x00007fb9fa37de9a in start_thread (arg=0x7fb957fff700) at pthread_create.c:308
#12 0x00007fb9fcda43fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fb956a4d700 (LWP 9940)):
#0  __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:49
#1  __pthread_mutex_unlock (mutex=0x7fb94800b3d0) at pthread_mutex_unlock.c:290
#2  0x00007fb9f9eec5e1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb9f9eb07fb in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb9f9eb0f1b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fb9f9eb1124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fb9fac73926 in QEventDispatcherGlib::processEvents (this=0x7fb948001130, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#7  0x00007fb9fac42e62 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#8  0x00007fb9fac430b7 in QEventLoop::exec (this=0x7fb956a4cdf0, flags=...) at kernel/qeventloop.cpp:204
#9  0x00007fb9fab42077 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#10 0x00007fb9e988b5e9 in ?? () from /usr/lib/kde4/kateprojectplugin.so
#11 0x0000000002563568 in ?? ()
#12 0x00007fb9fab4509b in QThreadPrivate::start (arg=0x2563568) at thread/qthread_unix.cpp:307
#13 0x00007fb9fa37de9a in start_thread (arg=0x7fb956a4d700) at pthread_create.c:308
#14 0x00007fb9fcda43fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#15 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fb95624c700 (LWP 9941)):
#0  0x00007fb9f9eec335 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb9f9eec5d9 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb9f9eb07fb in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb9f9eb0f1b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb9f9eb1124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fb9fac73926 in QEventDispatcherGlib::processEvents (this=0x7fb94c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fb9fac42e62 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fb9fac430b7 in QEventLoop::exec (this=0x7fb95624bdd0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fb9fab42077 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007fb9fac22b6f in QInotifyFileSystemWatcherEngine::run (this=0x1b418d0) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007fb9fab4509b in QThreadPrivate::start (arg=0x1b418d0) at thread/qthread_unix.cpp:307
#11 0x00007fb9fa37de9a in start_thread (arg=0x7fb95624c700) at pthread_create.c:308
#12 0x00007fb9fcda43fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fb9fd457780 (LWP 9903)):
[KCrash Handler]
#6  QModelIndex (other=..., this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qabstractitemmodel.h:65
#7  QSortFilterProxyModelPrivate::filter_changed (this=0x2da5000, source_parent=...) at itemviews/qsortfilterproxymodel.cpp:1042
#8  0x00007fb9fc7610aa in QSortFilterProxyModelPrivate::filter_changed (this=0x2da5000, source_parent=...) at itemviews/qsortfilterproxymodel.cpp:1047
#9  0x00007fb9fc761285 in QSortFilterProxyModel::setFilterFixedString (this=<optimized out>, pattern=...) at itemviews/qsortfilterproxymodel.cpp:2227
#10 0x00007fb9e9891768 in node_destruct (to=0x7fffb553f440, from=0x1, this=<optimized out>) at /usr/include/qt4/QtCore/qlist.h:755
#11 QList<QModelIndex>::free (data=0x0, this=<optimized out>) at /usr/include/qt4/QtCore/qlist.h:757
#12 0x0000000002dbad10 in ?? ()
#13 0x0000000000000001 in ?? ()
#14 0x00007fb9fac58781 in QMetaObject::activate (sender=0x2ad3740, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffb553f580) at kernel/qobject.cpp:3547
#15 0x00007fb9fc5cd142 in QLineEdit::textChanged (this=<optimized out>, _t1=...) at .moc/release-shared/moc_qlineedit.cpp:264
#16 0x00007fb9fc5cd3e9 in QLineEdit::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at .moc/release-shared/moc_qlineedit.cpp:140
#17 0x00007fb9fac58781 in QMetaObject::activate (sender=0x2c9e770, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffb553f6f0) at kernel/qobject.cpp:3547
#18 0x00007fb9fc8402f5 in QLineControl::textChanged (this=<optimized out>, _t1=...) at .moc/release-shared/moc_qlinecontrol_p.cpp:148
#19 0x00007fb9fc5d200b in QLineControl::finishChange (this=0x2c9e770, validateFromState=157, update=<optimized out>, edited=true) at widgets/qlinecontrol.cpp:660
#20 0x00007fb9fc5d43dd in QLineControl::processKeyEvent (this=0x2c9e770, event=0x7fffb55404c0) at widgets/qlinecontrol.cpp:1879
#21 0x00007fb9fc5c91d9 in QLineEdit::keyPressEvent (this=0x2ad3740, event=0x7fffb55404c0) at widgets/qlineedit.cpp:1707
#22 0x00007fb9fb508138 in KLineEdit::keyPressEvent (this=0x2ad3740, e=0x7fffb55404c0) at ../../kdeui/widgets/klineedit.cpp:965
#23 0x00007fb9fc1fd038 in QWidget::event (this=0x2ad3740, event=0x7fffb55404c0) at kernel/qwidget.cpp:8406
#24 0x00007fb9fc5cb777 in QLineEdit::event (this=0x2ad3740, e=0x7fffb55404c0) at widgets/qlineedit.cpp:1524
#25 0x00007fb9fb5067dd in KLineEdit::event (this=0x2ad3740, ev=0x7fffb55404c0) at ../../kdeui/widgets/klineedit.cpp:1402
#26 0x00007fb9fc1ac7b4 in notify_helper (e=0x7fffb55404c0, receiver=0x2ad3740, this=0x177a390) at kernel/qapplication.cpp:4556
#27 QApplicationPrivate::notify_helper (this=0x177a390, receiver=0x2ad3740, e=0x7fffb55404c0) at kernel/qapplication.cpp:4528
#28 0x00007fb9fc1b1c45 in QApplication::notify (this=<optimized out>, receiver=<optimized out>, e=0x7fffb55404c0) at kernel/qapplication.cpp:3997
#29 0x00007fb9fb44e1d6 in KApplication::notify (this=0x7fffb5541400, receiver=0x2ad3740, event=0x7fffb55404c0) at ../../kdeui/kernel/kapplication.cpp:311
#30 0x00007fb9fac4432c in QCoreApplication::notifyInternal (this=0x7fffb5541400, receiver=0x2ad3740, event=0x7fffb55404c0) at kernel/qcoreapplication.cpp:915
#31 0x00007fb9fc250bc9 in QKeyMapper::sendKeyEvent (keyWidget=0x2ad3740, grab=<optimized out>, type=QEvent::KeyPress, code=68, modifiers=..., text=..., autorepeat=false, count=1, nativeScanCode=40, nativeVirtualKey=68, nativeModifiers=1) at kernel/qkeymapper_x11.cpp:1866
#32 0x00007fb9fc25103b in QKeyMapperPrivate::translateKeyEvent (this=0x17bc2f0, keyWidget=0x2ad3740, event=0x7fffb5540fb0, grab=false) at kernel/qkeymapper_x11.cpp:1836
#33 0x00007fb9fc22b557 in QApplication::x11ProcessEvent (this=0x7fffb5541400, event=0x7fffb5540fb0) at kernel/qapplication_x11.cpp:3625
#34 0x00007fb9fc255052 in x11EventSourceDispatch (s=0x177ce00, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#35 0x00007fb9f9eb0d13 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007fb9f9eb1060 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007fb9f9eb1124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007fb9fac73926 in QEventDispatcherGlib::processEvents (this=0x1741b30, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#39 0x00007fb9fc254cde in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#40 0x00007fb9fac42e62 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#41 0x00007fb9fac430b7 in QEventLoop::exec (this=0x7fffb5541350, flags=...) at kernel/qeventloop.cpp:204
#42 0x00007fb9fac48407 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#43 0x00007fb9fd07627d in detach_helper (this=0x7fffb55422f0) at /usr/include/qt4/QtCore/qlist.h:725
#44 detach (this=0x7fffb55422f0) at /usr/include/qt4/QtCore/qlist.h:139
#45 detach (this=0x7fffb55422f0) at ./katemain.moc:97
#46 operator[] (i=0, this=0x7fffb55422f0) at /usr/include/qt4/QtCore/qlist.h:478
#47 kdemain (argc=<optimized out>, argv=<optimized out>) at ../../../kate/app/katemain.cpp:217
#48 0x00007fffb55429b0 in ?? ()
#49 0x0000000000000000 in ?? ()

Reported using DrKonqi