Using the build-button above the project sometimes, not always, produces a crash.

Could be a duplicate of Bug 293982 - Crash while build. which is with version 4.2.2 which is why I've added this new bug.

kdevelop and kdevplatform are built from sources using a git pull today, 23.4.2012

Reproducible: Sometimes

Steps to Reproduce:
1. Build cmake configured project using the build button

Actual Results:  
crash


Qt: 4.7.0
KDE Development Platform: 4.5.3 (KDE 4.5.3)
KDevelop: 4.3.60
Operating System: Linux 2.6.32-40-generic  x86_64 
Distribution: Ubuntu 10.04.4



Backtrace:


Application: KDevelop (kdevelop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fbbd586c760 (LWP 14723))]

Thread 9 (Thread 0x7fbbb70cb700 (LWP 14843)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:211
#1  0x00007fbbd1bd9e12 in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x36f0710, time=1000) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x36f0710, time=1000) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fbbce2c4bdb in KDevelop::DUChainPrivate::CleanupThread::run (this=0x36f06f0) at /opt/kdevelop/4.3.0/kdevplatform/language/duchain/duchain.cpp:282
#4  0x00007fbbd1bd92ee in QThreadPrivate::start (arg=0x36f06f0) at thread/qthread_unix.cpp:266
#5  0x00007fbbd19479ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#6  0x00007fbbcffa9cdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7fbba9e4d700 (LWP 14966)):
#0  0x00007fbbcb175b3e in g_main_context_check () from /lib/libglib-2.0.so.0
#1  0x00007fbbcb1764c3 in ?? () from /lib/libglib-2.0.so.0
#2  0x00007fbbcb1768fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#3  0x00007fbbd1cf81d6 in QEventDispatcherGlib::processEvents (this=0x40c3850, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:417
#4  0x00007fbbd1ccadd2 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#5  0x00007fbbd1ccb1bc in QEventLoop::exec (this=0x7fbba9e4cdb0, flags=) at kernel/qeventloop.cpp:201
#6  0x00007fbbd1bd636d in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#7  0x00007fbbd1caab48 in QInotifyFileSystemWatcherEngine::run (this=0x3f409c0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fbbd1bd92ee in QThreadPrivate::start (arg=0x3f409c0) at thread/qthread_unix.cpp:266
#9  0x00007fbbd19479ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#10 0x00007fbbcffa9cdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7fbba8b0e700 (LWP 15116)):
#0  0x00007fbbcff9d543 in *__GI___poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fbbcb1764a9 in ?? () from /lib/libglib-2.0.so.0
#2  0x00007fbbcb1768fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#3  0x00007fbbd1cf81d6 in QEventDispatcherGlib::processEvents (this=0x590e6c0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:417
#4  0x00007fbbd1ccadd2 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#5  0x00007fbbd1ccb1bc in QEventLoop::exec (this=0x7fbba8b0ddf0, flags=) at kernel/qeventloop.cpp:201
#6  0x00007fbbd1bd636d in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#7  0x00007fbbd1bd92ee in QThreadPrivate::start (arg=0x5800800) at thread/qthread_unix.cpp:266
#8  0x00007fbbd19479ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#9  0x00007fbbcffa9cdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7fbba830d700 (LWP 15117)):
#0  0x00007fbbcb175ea5 in g_main_context_prepare () from /lib/libglib-2.0.so.0
#1  0x00007fbbcb176318 in ?? () from /lib/libglib-2.0.so.0
#2  0x00007fbbcb1768fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#3  0x00007fbbd1cf81d6 in QEventDispatcherGlib::processEvents (this=0x5901170, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:417
#4  0x00007fbbd1ccadd2 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#5  0x00007fbbd1ccb1bc in QEventLoop::exec (this=0x7fbba830cdf0, flags=) at kernel/qeventloop.cpp:201
#6  0x00007fbbd1bd636d in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#7  0x00007fbbd1bd92ee in QThreadPrivate::start (arg=0x5809b50) at thread/qthread_unix.cpp:266
#8  0x00007fbbd19479ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#9  0x00007fbbcffa9cdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7fbba5dfb700 (LWP 16017)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbbc9e252be in ?? () from /usr/lib/libQtWebKit.so.4
#2  0x00007fbbc9e253d9 in ?? () from /usr/lib/libQtWebKit.so.4
#3  0x00007fbbd19479ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4  0x00007fbbcffa9cdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fbba65fc700 (LWP 16074)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbbd1bd9eab in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0xa2cb9b0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0xa2cb9b0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fbbd3cb5d84 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x23ad400, th=0x9627070) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fbbd3cb8f8b in ThreadWeaver::WorkingHardState::applyForWork (this=0x9bd0700, th=0x9627070) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fbbd3cb74ff in ThreadWeaver::ThreadRunHelper::run (this=0x7fbba65fbe00, parent=0x23ad400, th=0x9627070) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007fbbd3cb7a58 in ThreadWeaver::Thread::run (this=0x9627070) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007fbbd1bd92ee in QThreadPrivate::start (arg=0x9627070) at thread/qthread_unix.cpp:266
#8  0x00007fbbd19479ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#9  0x00007fbbcffa9cdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fbb9d9e4700 (LWP 18353)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbbd1bd9eab in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x27ed850, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x27ed850, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fbbd3cb5d84 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x27f8850, th=0xb5901b0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fbbd3cb8f8b in ThreadWeaver::WorkingHardState::applyForWork (this=0x27ed280, th=0xb5901b0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fbbd3cb8fa4 in ThreadWeaver::WorkingHardState::applyForWork (this=0x27ed280, th=0xb5901b0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007fbbd3cb74ff in ThreadWeaver::ThreadRunHelper::run (this=0x7fbb9d9e3e00, parent=0x27f8850, th=0xb5901b0) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007fbbd3cb7a58 in ThreadWeaver::Thread::run (this=0xb5901b0) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007fbbd1bd92ee in QThreadPrivate::start (arg=0xb5901b0) at thread/qthread_unix.cpp:266
#9  0x00007fbbd19479ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#10 0x00007fbbcffa9cdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fbb9d1e3700 (LWP 18354)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbbd1bd9eab in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x27ed850, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x27ed850, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fbbd3cb5d84 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x27f8850, th=0xb592920) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fbbd3cb8f8b in ThreadWeaver::WorkingHardState::applyForWork (this=0x27ed280, th=0xb592920) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fbbd3cb74ff in ThreadWeaver::ThreadRunHelper::run (this=0x7fbb9d1e2e00, parent=0x27f8850, th=0xb592920) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007fbbd3cb7a58 in ThreadWeaver::Thread::run (this=0xb592920) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007fbbd1bd92ee in QThreadPrivate::start (arg=0xb592920) at thread/qthread_unix.cpp:266
#8  0x00007fbbd19479ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#9  0x00007fbbcffa9cdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fbbd586c760 (LWP 14723)):
[KCrash Handler]
#6  QList (this=0x0) at /usr/include/qt4/QtCore/qlist.h:118
#7  QStringList (this=0x0) at /usr/include/qt4/QtCore/qstringlist.h:71
#8  KDevelop::IPlugin::extensions (this=0x0) at /opt/kdevelop/4.3.0/kdevplatform/interfaces/iplugin.cpp:155
#9  0x00007fbba6c3633b in KDevelop::IPlugin::extension<KDevelop::IProjectBuilder> (this=<value optimized out>) at /opt/kdevelop/4.3.0/include/kdevplatform/interfaces/iplugin.h:183
#10 CMakeManager::builder (this=<value optimized out>) at /opt/kdevelop/4.3.0/kdevelop/projectmanagers/cmake/cmakemanager.cpp:978
#11 0x00007fbbce8b9aaa in KDevelop::BuilderJobPrivate::addJob (this=0x2794700, t=KDevelop::BuilderJob::Install, item=0x7fbb9896c170) at /opt/kdevelop/4.3.0/kdevplatform/project/builderjob.cpp:76
#12 0x00007fbbadfb4289 in BuildItemBuilderJob (this=0xbb26c30, t=KDevelop::BuilderJob::Install, items=...) at /opt/kdevelop/4.3.0/kdevplatform/plugins/projectmanagerview/builditembuilderjob.cpp:35
#13 0x00007fbbadfa2c98 in ProjectManagerViewPlugin::runBuilderJob (this=<value optimized out>, t=KDevelop::BuilderJob::Install)
    at /opt/kdevelop/4.3.0/kdevplatform/plugins/projectmanagerview/projectmanagerviewplugin.cpp:339
#14 0x00007fbbadfa8267 in ProjectManagerViewPlugin::qt_metacall (this=0x3fcadc0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff0e3e6860)
    at /opt/kdevelop/4.3.0/kdevplatform/build/plugins/projectmanagerview/projectmanagerviewplugin.moc:112
#15 0x00007fbbd1ce3da7 in QMetaObject::activate (sender=0x3f6f4b0, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7fbba6c508ab) at kernel/qobject.cpp:3280
#16 0x00007fbbd0e13002 in QAction::triggered (this=0x7fff0e3e6520, _t1=false) at .moc/release-shared/moc_qaction.cpp:263
#17 0x00007fbbd0e146fb in QAction::activate (this=0x3f6f4b0, event=<value optimized out>) at kernel/qaction.cpp:1256
#18 0x00007fbbd11ef2da in QAbstractButtonPrivate::click (this=0xa20b450) at widgets/qabstractbutton.cpp:528
#19 0x00007fbbd11ef58c in QAbstractButton::mouseReleaseEvent (this=0x8b1ef40, e=0x7fff0e3e71c0) at widgets/qabstractbutton.cpp:1121
#20 0x00007fbbd12be4fa in QToolButton::mouseReleaseEvent (this=0x7fff0e3e6520, e=0x0) at widgets/qtoolbutton.cpp:721
#21 0x00007fbbd0e7048e in QWidget::event (this=0x8b1ef40, event=0x7fff0e3e71c0) at kernel/qwidget.cpp:8187
#22 0x00007fbbd0e1a6ec in QApplicationPrivate::notify_helper (this=0x2352140, receiver=0x8b1ef40, e=0x7fff0e3e71c0) at kernel/qapplication.cpp:4396
#23 0x00007fbbd0e209fe in QApplication::notify (this=0x7fff0e3e80d0, receiver=0x8b1ef40, e=0x7fff0e3e71c0) at kernel/qapplication.cpp:3959
#24 0x00007fbbd24af926 in KApplication::notify (this=0x7fff0e3e80d0, receiver=0x8b1ef40, event=0x7fff0e3e71c0) at ../../kdeui/kernel/kapplication.cpp:310
#25 0x00007fbbd1ccc0ac in QCoreApplication::notifyInternal (this=0x7fff0e3e80d0, receiver=0x8b1ef40, event=0x7fff0e3e71c0) at kernel/qcoreapplication.cpp:732
#26 0x00007fbbd0e1f4ae in QCoreApplication::sendEvent (receiver=0x8b1ef40, event=0x7fff0e3e71c0, alienWidget=0x8b1ef40, nativeWidget=0x6d01ef0, buttonDown=<value optimized out>, 
    lastMouseReceiver=<value optimized out>, spontaneous=true) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#27 QApplicationPrivate::sendMouseEvent (receiver=0x8b1ef40, event=0x7fff0e3e71c0, alienWidget=0x8b1ef40, nativeWidget=0x6d01ef0, buttonDown=<value optimized out>, 
    lastMouseReceiver=<value optimized out>, spontaneous=true) at kernel/qapplication.cpp:3058
#28 0x00007fbbd0ea24a5 in QETWidget::translateMouseEvent (this=0x6d01ef0, event=<value optimized out>) at kernel/qapplication_x11.cpp:4403
#29 0x00007fbbd0ea0ddc in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fff0e3e7ae0) at kernel/qapplication_x11.cpp:3536
#30 0x00007fbbd0ecd012 in x11EventSourceDispatch (s=0x2355da0, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#31 0x00007fbbcb1728c2 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#32 0x00007fbbcb176748 in ?? () from /lib/libglib-2.0.so.0
#33 0x00007fbbcb1768fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#34 0x00007fbbd1cf8183 in QEventDispatcherGlib::processEvents (this=0x232ed10, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:415
#35 0x00007fbbd0ecc97e in QGuiEventDispatcherGlib::processEvents (this=0x7fff0e3e6520, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#36 0x00007fbbd1ccadd2 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#37 0x00007fbbd1ccb1bc in QEventLoop::exec (this=0x7fff0e3e7e10, flags=) at kernel/qeventloop.cpp:201
#38 0x00007fbbd1ccf26b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#39 0x000000000040bc07 in main (argc=<value optimized out>, argv=<value optimized out>) at /opt/kdevelop/4.3.0/kdevelop/app/main.cpp:479