Application: umbrello (2.11.5)
KDE Platform Version: 4.11.5
Qt Version: 4.8.4
Operating System: Linux 3.11.0-12-generic x86_64
Distribution: Linux Mint 16 Petra

-- Information about the crash:
When i clicked option generate code, application autoclose and i was informed of application error.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Umbrello UML Modeller (umbrello), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fcfe61c07c0 (LWP 14690))]

Thread 3 (Thread 0x7fcfd4b4e700 (LWP 14691)):
#0  0x00007fcfe26b9f7d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fcfdf40f6a4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcfdf40f7ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcfe400ba76 in QEventDispatcherGlib::processEvents (this=0x7fcfd00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fcfe3fdd5ef in QEventLoop::processEvents (this=this@entry=0x7fcfd4b4dd70, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fcfe3fdd8e5 in QEventLoop::exec (this=this@entry=0x7fcfd4b4dd70, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fcfe3edc88f in QThread::exec (this=this@entry=0x249cff0) at thread/qthread.cpp:542
#7  0x00007fcfe3fbed13 in QInotifyFileSystemWatcherEngine::run (this=0x249cff0) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007fcfe3edef2f in QThreadPrivate::start (arg=0x249cff0) at thread/qthread_unix.cpp:338
#9  0x00007fcfdf8d4f6e in start_thread (arg=0x7fcfd4b4e700) at pthread_create.c:311
#10 0x00007fcfe26c69cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7fcfcca64700 (LWP 17192)):
#0  0x00007fcfdf44f0ed in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fcfdf44f399 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcfdf40ed59 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcfdf40f5c3 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcfdf40f7ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fcfe400ba76 in QEventDispatcherGlib::processEvents (this=0x7fcfc80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fcfe3fdd5ef in QEventLoop::processEvents (this=this@entry=0x7fcfcca63d70, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fcfe3fdd8e5 in QEventLoop::exec (this=this@entry=0x7fcfcca63d70, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fcfe3edc88f in QThread::exec (this=this@entry=0x297e440) at thread/qthread.cpp:542
#9  0x00007fcfe3fbed13 in QInotifyFileSystemWatcherEngine::run (this=0x297e440) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007fcfe3edef2f in QThreadPrivate::start (arg=0x297e440) at thread/qthread_unix.cpp:338
#11 0x00007fcfdf8d4f6e in start_thread (arg=0x7fcfcca64700) at pthread_create.c:311
#12 0x00007fcfe26c69cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7fcfe61c07c0 (LWP 14690)):
[KCrash Handler]
#6  ref (this=0xffffffff00000001) at /usr/include/qt4/QtCore/qatomic_x86_64.h:121
#7  QString (other=..., this=0x7fff18ea3c40, this@entry=0x7fff18ea3c10) at /usr/include/qt4/QtCore/qstring.h:726
#8  UMLObject::name (this=0x297fe10) at ../../umbrello/umlobject.cpp:187
#9  0x00000000006d8239 in ClassifierCodeDocument::syncNamesToParent (this=this@entry=0x2bae6c0) at ../../umbrello/classifiercodedocument.cpp:450
#10 0x00000000006d8dc1 in ClassifierCodeDocument::synchronize (this=0x2bae6c0) at ../../umbrello/classifiercodedocument.cpp:465
#11 0x0000000000584dd0 in CPPCodeGenerator::syncCodeToDocument (this=0x2ba5da0) at ../../umbrello/codegenerators/cpp/cppcodegenerator.cpp:214
#12 0x00007fcfe3ff2a58 in QMetaObject::activate (sender=0x2449400, m=m@entry=0x7d48a0 <CodeGenerationPolicy::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3539
#13 0x0000000000551e0a in modifiedCodeContent (this=<optimized out>) at ./codegenerationpolicy.moc:98
#14 CodeGenerationPolicy::emitModifiedCodeContentSig (this=<optimized out>) at ../../umbrello/codegenerators/codegenerationpolicy.cpp:423
#15 0x000000000059d584 in CPPCodeGenerationPolicy::setAutoGenerateAccessors (this=this@entry=0x2aea220, var=<optimized out>) at ../../umbrello/codegenerators/cpp/cppcodegenerationpolicy.cpp:150
#16 0x000000000059ea88 in CPPCodeGenerationPolicy::init (this=this@entry=0x2aea220) at ../../umbrello/codegenerators/cpp/cppcodegenerationpolicy.cpp:398
#17 0x000000000059eea7 in CPPCodeGenerationPolicy::CPPCodeGenerationPolicy (this=0x2aea220) at ../../umbrello/codegenerators/cpp/cppcodegenerationpolicy.cpp:37
#18 0x000000000054845d in CodeGenFactory::newCodeGenPolicyExt (pl=Uml::ProgrammingLanguage::Cpp) at ../../umbrello/codegenerators/codegenfactory.cpp:440
#19 0x00000000004a8ecb in CodeGenOptionsPage::updateCodeGenerationPolicyTab (this=this@entry=0x2d21150) at ../../umbrello/codegenwizard/codegenoptionspage.cpp:187
#20 0x00000000004aa90e in CodeGenOptionsPage::CodeGenOptionsPage (this=0x2d21150, parent=<optimized out>) at ../../umbrello/codegenwizard/codegenoptionspage.cpp:71
#21 0x0000000000484d9e in SettingsDlg::setupCodeGenPage (this=this@entry=0x27af800) at ../../umbrello/dialogs/settingsdlg.cpp:215
#22 0x0000000000485f24 in SettingsDlg::SettingsDlg (this=0x27af800, parent=<optimized out>, state=0x2428ee0) at ../../umbrello/dialogs/settingsdlg.cpp:53
#23 0x00000000007355ca in UMLApp::slotPrefs (this=0x243b730) at ../../umbrello/uml.cpp:1803
#24 0x00007fcfe3ff2a58 in QMetaObject::activate (sender=sender@entry=0x2547b20, m=m@entry=0x7fcfe3e24de0 <QAction::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7fff18ea4500) at kernel/qobject.cpp:3539
#25 0x00007fcfe3375a32 in QAction::triggered (this=this@entry=0x2547b20, _t1=false) at .moc/release-shared/moc_qaction.cpp:277
#26 0x00007fcfe3377403 in QAction::activate (this=this@entry=0x2547b20, event=event@entry=QAction::Trigger) at kernel/qaction.cpp:1257
#27 0x00007fcfe37a47f9 in QMenuPrivate::activateCausedStack (this=this@entry=0x25f6680, causedStack=..., action=action@entry=0x2547b20, action_e=action_e@entry=QAction::Trigger, self=self@entry=true) at widgets/qmenu.cpp:1038
#28 0x00007fcfe37a8d19 in QMenuPrivate::activateAction (this=0x25f6680, action=0x2547b20, action_e=action_e@entry=QAction::Trigger, self=self@entry=true) at widgets/qmenu.cpp:1130
#29 0x00007fcfe37ac6e5 in QMenu::mouseReleaseEvent (this=this@entry=0x25f3490, e=e@entry=0x7fff18ea4c30) at widgets/qmenu.cpp:2372
#30 0x00007fcfe4d35155 in KMenu::mouseReleaseEvent (this=0x25f3490, e=0x7fff18ea4c30) at ../../kdeui/widgets/kmenu.cpp:464
#31 0x00007fcfe33cb31e in QWidget::event (this=this@entry=0x25f3490, event=event@entry=0x7fff18ea4c30) at kernel/qwidget.cpp:8375
#32 0x00007fcfe37acaeb in QMenu::event (this=0x25f3490, e=0x7fff18ea4c30) at widgets/qmenu.cpp:2481
#33 0x00007fcfe337bdfc in QApplicationPrivate::notify_helper (this=this@entry=0x229f8e0, receiver=receiver@entry=0x25f3490, e=e@entry=0x7fff18ea4c30) at kernel/qapplication.cpp:4567
#34 0x00007fcfe33825ad in QApplication::notify (this=this@entry=0x7fff18ea55f0, receiver=receiver@entry=0x25f3490, e=e@entry=0x7fff18ea4c30) at kernel/qapplication.cpp:4110
#35 0x00007fcfe4c7ea6a in KApplication::notify (this=0x7fff18ea55f0, receiver=0x25f3490, event=0x7fff18ea4c30) at ../../kdeui/kernel/kapplication.cpp:311
#36 0x00007fcfe3fde8bd in QCoreApplication::notifyInternal (this=0x7fff18ea55f0, receiver=receiver@entry=0x25f3490, event=event@entry=0x7fff18ea4c30) at kernel/qcoreapplication.cpp:946
#37 0x00007fcfe3381d63 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#38 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x25f3490, event=event@entry=0x7fff18ea4c30, alienWidget=alienWidget@entry=0x0, nativeWidget=nativeWidget@entry=0x25f3490, buttonDown=buttonDown@entry=0x7fcfe3e602f8 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3178
#39 0x00007fcfe33f6b0c in QETWidget::translateMouseEvent (this=this@entry=0x25f3490, event=event@entry=0x7fff18ea4f80) at kernel/qapplication_x11.cpp:4565
#40 0x00007fcfe33f6079 in QApplication::x11ProcessEvent (this=0x7fff18ea55f0, event=event@entry=0x7fff18ea4f80) at kernel/qapplication_x11.cpp:3624
#41 0x00007fcfe341d922 in x11EventSourceDispatch (s=0x228e3a0, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#42 0x00007fcfdf40f3b6 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#43 0x00007fcfdf40f708 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#44 0x00007fcfdf40f7ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#45 0x00007fcfe400ba55 in QEventDispatcherGlib::processEvents (this=0x2269760, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#46 0x00007fcfe341d9d6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#47 0x00007fcfe3fdd5ef in QEventLoop::processEvents (this=this@entry=0x7fff18ea5360, flags=...) at kernel/qeventloop.cpp:149
#48 0x00007fcfe3fdd8e5 in QEventLoop::exec (this=this@entry=0x7fff18ea5360, flags=...) at kernel/qeventloop.cpp:204
#49 0x00007fcfe3fe2e5b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#50 0x00007fcfe337a34c in QApplication::exec () at kernel/qapplication.cpp:3828
#51 0x00000000004380bb in main (argc=<optimized out>, argv=<optimized out>) at ../../umbrello/main.cpp:113

Reported using DrKonqi