as additional information this crash is repeatable, it does repeat when i edit the same lines in the source code editor ....
Application: rkward (0.5.2) KDE Platform Version: 4.4.2 (KDE 4.4.2) Qt Version: 4.6.2 Operating System: Linux 2.6.32-20-generic x86_64 Distribution: Ubuntu lucid (development branch) -- Information about the crash: <In detail, tell us what you were doing when the application crashed.> The crash can be reproduced every time. -- Backtrace: Application: RKWard (rkward.bin), signal: Segmentation fault [Current thread is 1 (Thread 0x7f45584ac760 (LWP 15944))] Thread 3 (Thread 0x7f4544dde710 (LWP 15950)): #0 0xffffffffff60017b in ?? () #1 0x00007f4544dddaa0 in ?? () #2 0x00007fff979fc852 in ?? () Backtrace stopped: previous frame identical to this frame (corrupt stack?) Thread 2 (Thread 0x7f453ffff710 (LWP 15951)): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:211 #1 0x00007f4552f4e0e5 in thread_sleep (ti=0x7f453fffede0) at thread/qthread_unix.cpp:398 #2 0x00007f4552f4e250 in QThread::msleep (msecs=<value optimized out>) at thread/qthread_unix.cpp:424 #3 0x00000000004fcaba in RThread::run (this=0x131e130) at /home/bernd/R/Rkward/rkward-0.5.2/rkward/rbackend/rthread.cpp:152 #4 0x00007f4552f4e775 in QThreadPrivate::start (arg=0x131e130) at thread/qthread_unix.cpp:248 #5 0x00007f4552cbe9ca in start_thread (arg=<value optimized out>) at pthread_create.c:300 #6 0x00007f455226e6dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #7 0x0000000000000000 in ?? () Thread 1 (Thread 0x7f45584ac760 (LWP 15944)): [KCrash Handler] #5 QVector<KateCodeFoldingNode*>::size (this=0xaf8bbf0, node=0xab63bf0, line=368) at /usr/include/qt4/QtCore/qvector.h:124 #6 KateCodeFoldingNode::findChild (this=0xaf8bbf0, node=0xab63bf0, line=368) at ../../kate/syntax/katecodefolding.h:85 #7 KateCodeFoldingTree::removeOpening (this=0xaf8bbf0, node=0xab63bf0, line=368) at ../../kate/syntax/katecodefolding.cpp:554 #8 0x00007f453f4f709e in KateCodeFoldingTree::cleanupUnneededNodes (this=0xaf8bbf0, line=368) at ../../kate/syntax/katecodefolding.cpp:1321 #9 0x00007f453f4f782c in KateCodeFoldingTree::updateLine (this=0xaf8bbf0, line=<value optimized out>, regionChanges=0x7fff97831860, updated=<value optimized out>, changed=<value optimized out>, colsChanged=<value optimized out>) at ../../kate/syntax/katecodefolding.cpp:530 #10 0x00007f453f4891f3 in KateBuffer::doHighlight (this=0xaf8bba0, startLine=<value optimized out>, endLine=<value optimized out>, invalidate=<value optimized out>) at ../../kate/document/katebuffer.cpp:1332 #11 0x00007f453f48b441 in KateBuffer::editEnd (this=0xaf8bba0) at ../../kate/document/katebuffer.cpp:538 #12 0x00007f453f46fc9c in KateDocument::editEnd (this=0xaf8aa50) at ../../kate/document/katedocument.cpp:971 #13 0x00007f453f471fb0 in KateDocument::typeChars (this=0xaf8aa50, view=0xaf8e7d0, chars=...) at ../../kate/document/katedocument.cpp:2756 #14 0x00007f453f515a76 in KateViewInternal::keyPressEvent (this=0xaf910c0, e=0x7fff97832440) at ../../kate/view/kateviewinternal.cpp:2458 #15 0x00007f453f514c92 in KateViewInternal::eventFilter (this=0xaf910c0, obj=0xaf910c0, e=0x7fff97832440) at ../../kate/view/kateviewinternal.cpp:2261 #16 0x00007f4553042487 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0xaf910c0, event=0x7fff97832440) at kernel/qcoreapplication.cpp:819 #17 0x00007f455378f1fc in QApplicationPrivate::notify_helper (this=0x1157d30, receiver=0xaf910c0, e=0x7fff97832440) at kernel/qapplication.cpp:4296 #18 0x00007f4553796ec5 in QApplication::notify (this=<value optimized out>, receiver=0xaf910c0, e=0x7fff97832440) at kernel/qapplication.cpp:3763 #19 0x00007f45568db526 in KApplication::notify (this=0x7fff97833410, receiver=0xaf910c0, event=0x7fff97832440) at ../../kdeui/kernel/kapplication.cpp:302 #20 0x00007f455304306c in QCoreApplication::notifyInternal (this=0x7fff97833410, receiver=0xaf910c0, event=0x7fff97832440) at kernel/qcoreapplication.cpp:704 #21 0x00007f455383a16a in QKeyMapper::sendKeyEvent (keyWidget=0xaf910c0, grab=<value optimized out>, type=QEvent::KeyPress, code=39, modifiers=<value optimized out>, text=..., autorepeat=false, count=1, nativeScanCode=48, nativeVirtualKey=39, nativeModifiers=0) at kernel/qkeymapper_x11.cpp:1861 #22 0x00007f455383c6f0 in QKeyMapperPrivate::translateKeyEvent (this=0x119dba0, keyWidget=0xaf910c0, event=<value optimized out>, grab=false) at kernel/qkeymapper_x11.cpp:1831 #23 0x00007f4553813904 in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fff97833010) at kernel/qapplication_x11.cpp:3394 #24 0x00007f455383f882 in x11EventSourceDispatch (s=0x115bb30, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146 #25 0x00007f454eb968c2 in g_main_context_dispatch () from /lib/libglib-2.0.so.0 #26 0x00007f454eb9a748 in ?? () from /lib/libglib-2.0.so.0 #27 0x00007f454eb9a8fc in g_main_context_iteration () from /lib/libglib-2.0.so.0 #28 0x00007f455306c513 in QEventDispatcherGlib::processEvents (this=0x1157cf0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412 #29 0x00007f455383f46e in QGuiEventDispatcherGlib::processEvents (this=0xaf8bbf0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204 #30 0x00007f4553041992 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149 #31 0x00007f4553041d6c in QEventLoop::exec (this=0x7fff97833340, flags=) at kernel/qeventloop.cpp:201 #32 0x00007f4553045aab in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981 #33 0x00000000004369dc in main (argc=<value optimized out>, argv=<value optimized out>) at /home/bernd/R/Rkward/rkward-0.5.2/rkward/main.cpp:159 ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. 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