This happen with the KDE4 git kate. I failed to reproduce it. It only happened once. I was cutting text in a long lua file. Here is the backtrace: Application: Kate (kate), signal: Segmentation fault Using host libthread_db library "/lib64/libthread_db.so.1". [Current thread is 1 (Thread 0x7fc7a18b2800 (LWP 25930))] Thread 3 (Thread 0x7fc77d865700 (LWP 26531)): #0 0x00007fc79d8a6df3 in pthread_mutex_lock () from /lib64/libpthread.so.0 #1 0x00007fc797e441e7 in g_mutex_lock (mutex=mutex@entry=0x7fc7780009c0) at /var/tmp/portage/dev-libs/glib-2.40.0-r1/work/glib-2.40.0/glib/gthread-posix.c:209 #2 0x00007fc797df5860 in g_main_context_acquire (context=0x7fc7780009c0) at /var/tmp/portage/dev-libs/glib-2.40.0-r1/work/glib-2.40.0/glib/gmain.c:3124 #3 0x00007fc797df67c5 in g_main_context_iterate (context=context@entry=0x7fc7780009c0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.40.0-r1/work/glib-2.40.0/glib/gmain.c:3684 #4 0x00007fc797df6a0c in g_main_context_iteration (context=0x7fc7780009c0, may_block=1) at /var/tmp/portage/dev-libs/glib-2.40.0-r1/work/glib-2.40.0/glib/gmain.c:3795 #5 0x00007fc79dc8de36 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4 #6 0x00007fc79dc57270 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4 #7 0x00007fc79dc57577 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4 #8 0x00007fc79db36ba6 in QThread::exec() () from /usr/lib64/qt4/libQtCore.so.4 #9 0x00007fc79dc35033 in QInotifyFileSystemWatcherEngine::run() () from /usr/lib64/qt4/libQtCore.so.4 #10 0x00007fc79db39a14 in QThreadPrivate::start(void*) () from /usr/lib64/qt4/libQtCore.so.4 #11 0x00007fc79d8a4e03 in start_thread () from /lib64/libpthread.so.0 #12 0x00007fc79cbb3dbd in clone () from /lib64/libc.so.6 Thread 2 (Thread 0x7fc77cf64700 (LWP 26601)): #0 0x00007fc79d8a89ac in pthread_cond_wait () from /lib64/libpthread.so.0 #1 0x00007fc78391427f in QTWTF::TCMalloc_PageHeap::scavengerThread() () from /usr/lib64/qt4/libQtScript.so.4 #2 0x00007fc7839142b9 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /usr/lib64/qt4/libQtScript.so.4 #3 0x00007fc79d8a4e03 in start_thread () from /lib64/libpthread.so.0 #4 0x00007fc79cbb3dbd in clone () from /lib64/libc.so.6 Thread 1 (Thread 0x7fc7a18b2800 (LWP 25930)): [KCrash Handler] #6 KateBuffer::computeFoldingRangeForStartLine (this=0x2023a60, startLine=startLine@entry=1048) at /home/kde-devel/kde/src/kate/part/document/katebuffer.cpp:545 #7 0x00007fc77fe49e56 in KateIconBorder::showBlock (this=0x40e9ef0) at /home/kde-devel/kde/src/kate/part/view/kateviewhelpers.cpp:1892 #8 0x00007fc79dc731ae in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib64/qt4/libQtCore.so.4 #9 0x00007fc79dc770e2 in QObject::event(QEvent*) () from /usr/lib64/qt4/libQtCore.so.4 #10 0x00007fc79ee655cc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4 #11 0x00007fc79ee6d159 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4 #12 0x00007fc79fc5bdca in KApplication::notify (this=0x7fff99050700, receiver=0x40e9f88, event=0x7fff99050230) at /home/kde-devel/kde/src/kdelibs/kdeui/kernel/kapplication.cpp:311 #13 0x00007fc79dc5939d in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/qt4/libQtCore.so.4 #14 0x00007fc79dc916b4 in QTimerInfoList::activateTimers() () from /usr/lib64/qt4/libQtCore.so.4 #15 0x00007fc79dc8dc21 in timerSourceDispatch(_GSource*, int (*)(void*), void*) () from /usr/lib64/qt4/libQtCore.so.4 #16 0x00007fc797df6704 in g_main_dispatch (context=0x1ace530) at /var/tmp/portage/dev-libs/glib-2.40.0-r1/work/glib-2.40.0/glib/gmain.c:3064 #17 g_main_context_dispatch (context=context@entry=0x1ace530) at /var/tmp/portage/dev-libs/glib-2.40.0-r1/work/glib-2.40.0/glib/gmain.c:3663 #18 0x00007fc797df6968 in g_main_context_iterate (context=context@entry=0x1ace530, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.40.0-r1/work/glib-2.40.0/glib/gmain.c:3734 #19 0x00007fc797df6a0c in g_main_context_iteration (context=0x1ace530, may_block=1) at /var/tmp/portage/dev-libs/glib-2.40.0-r1/work/glib-2.40.0/glib/gmain.c:3795 #20 0x00007fc79dc8de15 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4 #21 0x00007fc79ef13e46 in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtGui.so.4 #22 0x00007fc79dc57270 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4 #23 0x00007fc79dc57577 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4 #24 0x00007fc79dc5ee6b in QCoreApplication::exec() () from /usr/lib64/qt4/libQtCore.so.4 #25 0x00007fc7a14f0145 in kdemain (argc=<optimized out>, argv=<optimized out>) at /home/kde-devel/kde/src/kate/kate/app/katemain.cpp:381 #26 0x00007fc79caed975 in __libc_start_main () from /lib64/libc.so.6 #27 0x0000000000400941 in _start ()
The code for this is: 522:KTextEditor::Range KateBuffer::computeFoldingRangeForStartLine (int startLine) ... 539: ensureHighlighted (startLine); 540: Kate::TextLine startTextLine = plainLine (startLine); 541: 542: /** 543: * return if no folding start! 544: */ 545: if (!startTextLine->markedAsFoldingStart ()) 546: return KTextEditor::Range::invalid(); Maybe startTextLine is invalid? startLine is 1048 in the trace above, so that number looks good. Probably very hard to reproduce and fix.
Created attachment 91498 [details] New crash information added by DrKonqi kate (3.14.4) on KDE Platform 4.14.4 using Qt 4.8.6 This happened for me when I attempted to cut a large chunk of bash code using ctrl-x (fedora 21, kate-4.14.3-3.fc21.x86_64) -- Backtrace (Reduced): #6 0x00007f2232208404 in KateBuffer::computeFoldingRangeForStartLine(int) () at /lib64/libkatepartinterfaces.so.4 #7 0x00007f2232299aae in KateIconBorder::showBlock() () at /lib64/libkatepartinterfaces.so.4 [...] #9 0x00007f224b9642a3 in QObject::event(QEvent*) (this=0x3153fd8, e=<optimized out>) at kernel/qobject.cpp:1253 #10 0x00007f224c83eefc in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x23bb540, receiver=receiver@entry=0x3153fd8, e=e@entry=0x7fff23831dc0) at kernel/qapplication.cpp:4565 #11 0x00007f224c845958 in QApplication::notify(QObject*, QEvent*) (this=this@entry=0x7fff238322c0, receiver=receiver@entry=0x3153fd8, e=e@entry=0x7fff23831dc0) at kernel/qapplication.cpp:4351
I was deleting in a fast way some parts of not so long HTML5 document and got the same crash. Unfortunately backtrace was incomplete. Editing the same file once more went just fine. A timing issue? kate: 3.14.6 KDE SC: 4.14.6 Gentoo ~AMD64
Git commit 4e08d37ee449a77d068e74cb135b90c84860b460 by Christoph Cullmann. Committed on 04/10/2015 at 11:38. Pushed by cullmann into branch 'master'. validate line before calling folding stuff M +1 -1 src/printing/kateprinter.h M +2 -2 src/view/kateview.cpp M +5 -4 src/view/kateviewhelpers.cpp http://commits.kde.org/ktexteditor/4e08d37ee449a77d068e74cb135b90c84860b460
*** Bug 352585 has been marked as a duplicate of this bug. ***
*** Bug 362858 has been marked as a duplicate of this bug. ***
*** Bug 381275 has been marked as a duplicate of this bug. ***