Application: kate (3.8.1)
KDE Platform Version: 4.8.1 (4.8.1) (Compiled from sources)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-20-generic x86_64
Distribution: Ubuntu precise (development branch)

-- Information about the crash:
- What I was doing when the application crashed:
I was editing a fortran 90 file and switching among many files.

The crash can be reproduced some of the time.

-- 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 0x7fc748a93780 (LWP 26018))]

Thread 4 (Thread 0x7fc736636700 (LWP 26021)):
#0  0x00007fc7483c60bd in read () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007fc74552a89f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc7454efabd in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc7454eff96 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc7454f045a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fc73663b98b in ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
#6  0x00007fc7455119b5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fc7459bce9a in start_thread (arg=0x7fc736636700) at pthread_create.c:308
#8  0x00007fc7483d34bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#9  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fc735e35700 (LWP 26022)):
#0  0x00007fc7459bef69 in __pthread_mutex_lock (mutex=0x7fc73000ef20) at pthread_mutex_lock.c:92
#1  0x00007fc74552b571 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc7454efef5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc7454f045a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc73b2b6326 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007fc7455119b5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fc7459bce9a in start_thread (arg=0x7fc735e35700) at pthread_create.c:308
#7  0x00007fc7483d34bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#8  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fc722df6700 (LWP 26024)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fc72385a222 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007fc72385a259 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007fc7459bce9a in start_thread (arg=0x7fc722df6700) at pthread_create.c:308
#4  0x00007fc7483d34bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fc748a93780 (LWP 26018)):
[KCrash Handler]
#6  0x00007fc7461f3f23 in HB_HeuristicSetGlyphAttributes (item=0x7fff60da0da0) at ../3rdparty/harfbuzz/src/harfbuzz-shaper.cpp:475
#7  0x00007fc7461f8f18 in HB_BasicShape (shaper_item=0x7fff60da0da0) at ../3rdparty/harfbuzz/src/harfbuzz-shaper.cpp:615
#8  0x00007fc7461f9fe4 in HB_ShapeItem (shaper_item=0x7fff60da0da0) at ../3rdparty/harfbuzz/src/harfbuzz-shaper.cpp:1419
#9  0x00007fc747a39d13 in QTextEngine::shapeTextWithHarfbuzz (this=0x25a9cb0, item=<optimized out>) at text/qtextengine.cpp:1342
#10 0x00007fc747a3a5fb in QTextEngine::shapeText (this=0x25a9cb0, item=0) at text/qtextengine.cpp:935
#11 0x00007fc747a3a94e in QTextEngine::shape (this=0x25a9cb0, item=0) at text/qtextengine.cpp:1450
#12 0x00007fc747a409be in QTextEngine::shapeLine (this=0x25a9cb0, line=...) at text/qtextengine.cpp:875
#13 0x00007fc747a40d1e in QTextLineItemIterator::QTextLineItemIterator (this=0x7fff60da1b90, _eng=<optimized out>, _lineNum=<optimized out>, pos=..., _selection=<optimized out>) at text/qtextengine.cpp:3201
#14 0x00007fc747a4373b in QTextLine::draw (this=0x7fff60da2400, p=0x7fff60da3010, pos=..., selection=0x0) at text/qtextlayout.cpp:2305
#15 0x00007fc747a4894e in QTextLayout::draw (this=0x28ef580, p=0x7fff60da3010, pos=..., selections=..., clip=...) at text/qtextlayout.cpp:1183
#16 0x00007fc723c99c91 in KateRenderer::paintTextLine (this=0x2517480, paint=..., range=..., xStart=0, xEnd=1603, cursor=0x7fff60da2f90) at ../../part/render/katerenderer.cpp:520
#17 0x00007fc723cef8b2 in KateViewInternal::paintEvent (this=0x1f94fe0, e=0x7fff60da3860) at ../../part/view/kateviewinternal.cpp:2932
#18 0x00007fc74782f0f6 in QWidget::event (this=0x1f94fe0, event=0x7fff60da3860) at kernel/qwidget.cpp:8508
#19 0x00007fc7477de894 in notify_helper (e=0x7fff60da3860, receiver=0x1f94fe0, this=0x181ba30) at kernel/qapplication.cpp:4559
#20 QApplicationPrivate::notify_helper (this=0x181ba30, receiver=0x1f94fe0, e=0x7fff60da3860) at kernel/qapplication.cpp:4531
#21 0x00007fc7477e3713 in QApplication::notify (this=0x7fff60da49b0, receiver=0x1f94fe0, e=0x7fff60da3860) at kernel/qapplication.cpp:4420
#22 0x00007fc746a8d906 in KApplication::notify (this=0x7fff60da49b0, receiver=0x1f94fe0, event=0x7fff60da3860) at ../../kdeui/kernel/kapplication.cpp:311
#23 0x00007fc746282e9c in QCoreApplication::notifyInternal (this=0x7fff60da49b0, receiver=0x1f94fe0, event=0x7fff60da3860) at kernel/qcoreapplication.cpp:876
#24 0x00007fc74782ad96 in sendSpontaneousEvent (event=0x7fff60da3860, receiver=0x1f94fe0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#25 QWidgetPrivate::drawWidget (this=0x2537b70, pdev=0x1c23630, rgn=..., offset=..., flags=68, sharedPainter=0x0, backingStore=0x2158e30) at kernel/qwidget.cpp:5585
#26 0x00007fc7479fbb0c in QWidgetBackingStore::sync (this=0x2158e30) at painting/qbackingstore.cpp:1365
#27 0x00007fc747821ac0 in QWidgetPrivate::syncBackingStore (this=0x1c19580) at kernel/qwidget.cpp:1891
#28 0x00007fc74782f60c in QWidget::event (this=0x1ba8d20, event=0x27aa480) at kernel/qwidget.cpp:8655
#29 0x00007fc747c08c4b in QMainWindow::event (this=0x1ba8d20, event=0x27aa480) at widgets/qmainwindow.cpp:1478
#30 0x00007fc746b88e18 in KXmlGuiWindow::event (this=0x1ba8d20, ev=0x27aa480) at ../../kdeui/xmlgui/kxmlguiwindow.cpp:126
#31 0x00007fc7477de894 in notify_helper (e=0x27aa480, receiver=0x1ba8d20, this=0x181ba30) at kernel/qapplication.cpp:4559
#32 QApplicationPrivate::notify_helper (this=0x181ba30, receiver=0x1ba8d20, e=0x27aa480) at kernel/qapplication.cpp:4531
#33 0x00007fc7477e3713 in QApplication::notify (this=0x7fff60da49b0, receiver=0x1ba8d20, e=0x27aa480) at kernel/qapplication.cpp:4420
#34 0x00007fc746a8d906 in KApplication::notify (this=0x7fff60da49b0, receiver=0x1ba8d20, event=0x27aa480) at ../../kdeui/kernel/kapplication.cpp:311
#35 0x00007fc746282e9c in QCoreApplication::notifyInternal (this=0x7fff60da49b0, receiver=0x1ba8d20, event=0x27aa480) at kernel/qcoreapplication.cpp:876
#36 0x00007fc746286c6a in sendEvent (event=0x27aa480, receiver=0x1ba8d20) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#37 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x17e4670) at kernel/qcoreapplication.cpp:1500
#38 0x00007fc7462b1f93 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#39 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#40 0x00007fc7454efc9a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#41 0x00007fc7454f0060 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#42 0x00007fc7454f0124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#43 0x00007fc7462b23bf in QEventDispatcherGlib::processEvents (this=0x17e5b30, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#44 0x00007fc747886d6e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#45 0x00007fc746281c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#46 0x00007fc746281ed7 in QEventLoop::exec (this=0x7fff60da48f0, flags=...) at kernel/qeventloop.cpp:204
#47 0x00007fc746286f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#48 0x00007fc7486a40d5 in kdemain (argc=<optimized out>, argv=<optimized out>) at ../../../kate/app/katemain.cpp:377
#49 0x00007fc74830276d in __libc_start_main (main=0x400630 <main(int, char**)>, argc=2, ubp_av=0x7fff60da5ee8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff60da5ed8) at libc-start.c:226
#50 0x0000000000400661 in _start ()

Reported using DrKonqi