- What I was doing when the application crashed: Opened new session, opened project

To reproduce:
Have a PHP project with Composer-installed phpDocumentor. The file that will cause a crash is $projectroot/vendor/phpdocumentor/phpdocumentor/src/phpDocumentor/Plugin/Scrybe/Converter/RestructuredText/ToHtml.php (this was figured out by setting number of backgrounds threads to 1 and using strace).

If you want to reproduce the project from scratch:

mkdir dummy
cd dummy
curl -sS https://getcomposer.org/installer | php
php composer.phar require "phpdocumentor/phpdocumentor" "dev-master"
echo <<EOF > dummy.kdev4
[Project]
Manager=KDevGenericManager
Name=dummy
VersionControlSupport=kdevgit
EOF

Now open KDevelop, Session -> Start New Session if necessary, and open the self-generated dummy.kdev4.

Reproducible: Always

Steps to Reproduce:
1. Completely clear KDevelop's DU chain cache
2. Open KDevelop
3. Have a Composer-based project that has phpDocumentor fully installed
4. Open project and let background parsing happen

Actual Results:  
Crashes when scanning $projectroot/vendor/phpdocumentor/phpdocumentor/src/phpDocumentor/Plugin/Scrybe/Converter/RestructuredText/ToHtml.php (this was figured out by setting number of backgrounds threads to 1 and using strace).

Expected Results:  
Should scan this file without issue.

The file alone does not cause a crash (tried that). It is probably related to DU chain.

Application: kdevelop (4.7.1)
KDE Platform Version: 4.14.6 (Compiled from sources)
Qt Version: 4.8.6
Operating System: Linux 3.18.9-gentoo-limelight x86_64
Distribution: "NAME=Gentoo"

Thread 4 crashed:
-- Backtrace:
Application: KDevelop (kdevelop), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f893f4d2780 (LWP 25481))]

Thread 15 (Thread 0x7f8928237700 (LWP 25482)):
#0  pthread_cond_wait () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f8938405b1b in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7f8938704f00 <QTWTF::pageheap_memory>) at /var/tmp/portage/dev-qt/qtscript-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007f8938405b69 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at /var/tmp/portage/dev-qt/qtscript-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007f893b9a43a4 in start_thread (arg=0x7f8928237700) at pthread_create.c:310
#4  0x00007f893bc9ea5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f88a6dff700 (LWP 25483)):
#0  0x00007f893bc91eed in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8935e056a0 in read (__nbytes=16, __buf=0x7f88a6dfec20, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  g_wakeup_acknowledge (wakeup=0x24515c0) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gwakeup.c:210
#3  0x00007f8935dc4634 in g_main_context_check (context=context@entry=0x7f88a00009a0, max_priority=2147483647, fds=fds@entry=0x7f88a0003460, n_fds=n_fds@entry=1) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gmain.c:3579
#4  0x00007f8935dc4a9b in g_main_context_iterate (context=context@entry=0x7f88a00009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gmain.c:3778
#5  0x00007f8935dc4c0c in g_main_context_iteration (context=0x7f88a00009a0, may_block=1) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gmain.c:3842
#6  0x00007f893c40303e in QEventDispatcherGlib::processEvents (this=0x7f88a00008c0, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventdispatcher_glib.cpp:452
#7  0x00007f893c3d44af in QEventLoop::processEvents (this=this@entry=0x7f88a6dfee20, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventloop.cpp:149
#8  0x00007f893c3d47a5 in QEventLoop::exec (this=this@entry=0x7f88a6dfee20, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventloop.cpp:204
#9  0x00007f893c2cedff in QThread::exec (this=this@entry=0x27b4140) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/thread/qthread.cpp:538
#10 0x00007f893c3b55c3 in QInotifyFileSystemWatcherEngine::run (this=0x27b4140) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/io/qfilesystemwatcher_inotify.cpp:265
#11 0x00007f893c2d156f in QThreadPrivate::start (arg=0x27b4140) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/thread/qthread_unix.cpp:349
#12 0x00007f893b9a43a4 in start_thread (arg=0x7f88a6dff700) at pthread_create.c:310
#13 0x00007f893bc9ea5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f88a58dc700 (LWP 25485)):
#0  pthread_cond_timedwait () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007f893c2d1a44 in wait (time=1000, this=0x41d29b0) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/thread/qwaitcondition_unix.cpp:84
#2  QWaitCondition::wait (this=this@entry=0x41cc438, mutex=mutex@entry=0x41cc440, time=time@entry=1000) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/thread/qwaitcondition_unix.cpp:158
#3  0x00007f8938e72262 in KDevelop::DUChainPrivate::CleanupThread::run (this=0x41cc420) at /var/tmp/portage/dev-util/kdevplatform-1.7.1/work/kdevplatform-1.7.1/language/duchain/duchain.cpp:283
#4  0x00007f893c2d156f in QThreadPrivate::start (arg=0x41cc420) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/thread/qthread_unix.cpp:349
#5  0x00007f893b9a43a4 in start_thread (arg=0x7f88a58dc700) at pthread_create.c:310
#6  0x00007f893bc9ea5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f8897fff700 (LWP 25486)):
#0  g_main_context_query (context=context@entry=0x7f88900009a0, max_priority=2147483647, timeout=timeout@entry=0x7f8897ffed2c, fds=fds@entry=0x7f8890002de0, n_fds=n_fds@entry=1) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gmain.c:3503
#1  0x00007f8935dc4a72 in g_main_context_iterate (context=context@entry=0x7f88900009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gmain.c:3763
#2  0x00007f8935dc4c0c in g_main_context_iteration (context=0x7f88900009a0, may_block=1) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gmain.c:3842
#3  0x00007f893c40303e in QEventDispatcherGlib::processEvents (this=0x7f88900008c0, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventdispatcher_glib.cpp:452
#4  0x00007f893c3d44af in QEventLoop::processEvents (this=this@entry=0x7f8897ffee60, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventloop.cpp:149
#5  0x00007f893c3d47a5 in QEventLoop::exec (this=this@entry=0x7f8897ffee60, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventloop.cpp:204
#6  0x00007f893c2cedff in QThread::exec (this=<optimized out>) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/thread/qthread.cpp:538
#7  0x00007f893c2d156f in QThreadPrivate::start (arg=0x4b2eee8) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/thread/qthread_unix.cpp:349
#8  0x00007f893b9a43a4 in start_thread (arg=0x7f8897fff700) at pthread_create.c:310
#9  0x00007f893bc9ea5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f888ebaf700 (LWP 25493)):
#0  0x00007f893bc95e0d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8935dc4b04 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f8884003510, timeout=-1, context=0x7f88840009a0) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gmain.c:4076
#2  g_main_context_iterate (context=context@entry=0x7f88840009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gmain.c:3776
#3  0x00007f8935dc4c0c in g_main_context_iteration (context=0x7f88840009a0, may_block=1) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gmain.c:3842
#4  0x00007f893c40303e in QEventDispatcherGlib::processEvents (this=0x7f88840008c0, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventdispatcher_glib.cpp:452
#5  0x00007f893c3d44af in QEventLoop::processEvents (this=this@entry=0x7f888ebaee60, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventloop.cpp:149
#6  0x00007f893c3d47a5 in QEventLoop::exec (this=this@entry=0x7f888ebaee60, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventloop.cpp:204
#7  0x00007f893c2cedff in QThread::exec (this=<optimized out>) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/thread/qthread.cpp:538
#8  0x00007f893c2d156f in QThreadPrivate::start (arg=0x4c62570) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/thread/qthread_unix.cpp:349
#9  0x00007f893b9a43a4 in start_thread (arg=0x7f888ebaf700) at pthread_create.c:310
#10 0x00007f893bc9ea5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f8875496700 (LWP 25498)):
#0  0x00007f893bc95e0d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8935dc4b04 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f8870003010, timeout=-1, context=0x7f88700009a0) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gmain.c:4076
#2  g_main_context_iterate (context=context@entry=0x7f88700009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gmain.c:3776
#3  0x00007f8935dc4c0c in g_main_context_iteration (context=0x7f88700009a0, may_block=1) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gmain.c:3842
#4  0x00007f893c40303e in QEventDispatcherGlib::processEvents (this=0x7f88700008c0, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventdispatcher_glib.cpp:452
#5  0x00007f893c3d44af in QEventLoop::processEvents (this=this@entry=0x7f8875495e20, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventloop.cpp:149
#6  0x00007f893c3d47a5 in QEventLoop::exec (this=this@entry=0x7f8875495e20, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventloop.cpp:204
#7  0x00007f893c2cedff in QThread::exec (this=this@entry=0x25dc920) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/thread/qthread.cpp:538
#8  0x00007f893c3b55c3 in QInotifyFileSystemWatcherEngine::run (this=0x25dc920) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/io/qfilesystemwatcher_inotify.cpp:265
#9  0x00007f893c2d156f in QThreadPrivate::start (arg=0x25dc920) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/thread/qthread_unix.cpp:349
#10 0x00007f893b9a43a4 in start_thread (arg=0x7f8875496700) at pthread_create.c:310
#11 0x00007f893bc9ea5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f8874c95700 (LWP 25499)):
#0  pthread_cond_wait () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f893241b8fa in WTF::TCMalloc_PageHeap::scavengerThread (this=<optimized out>) at /var/tmp/portage/dev-qt/qtwebkit-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/3rdparty/webkit/Source/JavaScriptCore/wtf/FastMalloc.cpp:2495
#2  0x00007f893241b939 in WTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at /var/tmp/portage/dev-qt/qtwebkit-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/3rdparty/webkit/Source/JavaScriptCore/wtf/FastMalloc.cpp:1618
#3  0x00007f893b9a43a4 in start_thread (arg=0x7f8874c95700) at pthread_create.c:310
#4  0x00007f893bc9ea5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f886ffff700 (LWP 25500)):
#0  0x00007f893bc91eed in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8935e056a0 in read (__nbytes=16, __buf=0x7f886fffec60, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  g_wakeup_acknowledge (wakeup=0x7f8870002360) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gwakeup.c:210
#3  0x00007f8935dc4634 in g_main_context_check (context=context@entry=0x7f88680009a0, max_priority=2147483647, fds=fds@entry=0x7f88680013e0, n_fds=n_fds@entry=1) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gmain.c:3579
#4  0x00007f8935dc4a9b in g_main_context_iterate (context=context@entry=0x7f88680009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gmain.c:3778
#5  0x00007f8935dc4c0c in g_main_context_iteration (context=0x7f88680009a0, may_block=1) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gmain.c:3842
#6  0x00007f893c40303e in QEventDispatcherGlib::processEvents (this=0x7f88680008c0, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventdispatcher_glib.cpp:452
#7  0x00007f893c3d44af in QEventLoop::processEvents (this=this@entry=0x7f886fffee60, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventloop.cpp:149
#8  0x00007f893c3d47a5 in QEventLoop::exec (this=this@entry=0x7f886fffee60, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventloop.cpp:204
#9  0x00007f893c2cedff in QThread::exec (this=<optimized out>) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/thread/qthread.cpp:538
#10 0x00007f893c2d156f in QThreadPrivate::start (arg=0x4e409f0) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/thread/qthread_unix.cpp:349
#11 0x00007f893b9a43a4 in start_thread (arg=0x7f886ffff700) at pthread_create.c:310
#12 0x00007f893bc9ea5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f886f7fe700 (LWP 25501)):
#0  0x00007f893bc95e0d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8935dc4b04 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f88600013e0, timeout=107622, context=0x7f88600009a0) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gmain.c:4076
#2  g_main_context_iterate (context=context@entry=0x7f88600009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gmain.c:3776
#3  0x00007f8935dc4c0c in g_main_context_iteration (context=0x7f88600009a0, may_block=1) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gmain.c:3842
#4  0x00007f893c40303e in QEventDispatcherGlib::processEvents (this=0x7f88600008c0, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventdispatcher_glib.cpp:452
#5  0x00007f893c3d44af in QEventLoop::processEvents (this=this@entry=0x7f886f7fde60, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventloop.cpp:149
#6  0x00007f893c3d47a5 in QEventLoop::exec (this=this@entry=0x7f886f7fde60, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventloop.cpp:204
#7  0x00007f893c2cedff in QThread::exec (this=<optimized out>) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/thread/qthread.cpp:538
#8  0x00007f893c2d156f in QThreadPrivate::start (arg=0x2c51e30) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/thread/qthread_unix.cpp:349
#9  0x00007f893b9a43a4 in start_thread (arg=0x7f886f7fe700) at pthread_create.c:310
#10 0x00007f893bc9ea5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f886effd700 (LWP 25502)):
#0  pthread_cond_timedwait () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007f893c2d1a44 in wait (time=30000, this=0x7f88600071c0) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/thread/qwaitcondition_unix.cpp:84
#2  QWaitCondition::wait (this=this@entry=0x7f8860006f70, mutex=mutex@entry=0x7f8860006c78, time=30000) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/thread/qwaitcondition_unix.cpp:158
#3  0x00007f893c2c527a in QThreadPoolThread::run (this=0x7f8860006f60) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/concurrent/qthreadpool.cpp:142
#4  0x00007f893c2d156f in QThreadPrivate::start (arg=0x7f8860006f60) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/thread/qthread_unix.cpp:349
#5  0x00007f893b9a43a4 in start_thread (arg=0x7f886effd700) at pthread_create.c:310
#6  0x00007f893bc9ea5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f887f588700 (LWP 25514)):
#0  pthread_cond_wait () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f893c2d1a66 in wait (time=18446744073709551615, this=0x2ceee30) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x2ceed08, mutex=0x2ceefb0, time=time@entry=18446744073709551615) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/thread/qwaitcondition_unix.cpp:158
#3  0x00007f89330c081c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2ceece0, th=0x27cba50) at /var/tmp/portage/kde-base/kdelibs-4.14.6-r1/work/kdelibs-4.14.6/threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007f89330c3273 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2cef040, th=0x27cba50, previous=0x0) at /var/tmp/portage/kde-base/kdelibs-4.14.6-r1/work/kdelibs-4.14.6/threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007f89330c328c in ThreadWeaver::WorkingHardState::applyForWork (this=0x2cef040, th=0x27cba50, previous=0x6608770) at /var/tmp/portage/kde-base/kdelibs-4.14.6-r1/work/kdelibs-4.14.6/threadweaver/Weaver/WorkingHardState.cpp:71
#6  0x00007f89330c1f9f in ThreadWeaver::Thread::run (this=0x27cba50) at /var/tmp/portage/kde-base/kdelibs-4.14.6-r1/work/kdelibs-4.14.6/threadweaver/Weaver/Thread.cpp:98
#7  0x00007f893c2d156f in QThreadPrivate::start (arg=0x27cba50) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/thread/qthread_unix.cpp:349
#8  0x00007f893b9a43a4 in start_thread (arg=0x7f887f588700) at pthread_create.c:310
#9  0x00007f893bc9ea5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f887ed87700 (LWP 25515)):
[KCrash Handler]
#6  KDevelop::Declaration::indexedType (this=this@entry=0x0) at /var/tmp/portage/dev-util/kdevplatform-1.7.1/work/kdevplatform-1.7.1/language/duchain/declaration.cpp:265
#7  0x00007f8938ea7325 in KDevelop::isPublicBaseClassInternal (self=self@entry=0x0, base=base@entry=0x7f881da1e6a0, topContext=0x7f88082f0b40, baseConversionLevels=baseConversionLevels@entry=0x0, depth=depth@entry=0, checked=checked@entry=0x0) at /var/tmp/portage/dev-util/kdevplatform-1.7.1/work/kdevplatform-1.7.1/language/duchain/classdeclaration.cpp:112
#8  0x00007f8938ea761b in KDevelop::ClassDeclaration::isPublicBaseClass (this=this@entry=0x0, base=base@entry=0x7f881da1e6a0, topContext=<optimized out>, baseConversionLevels=baseConversionLevels@entry=0x0) at /var/tmp/portage/dev-util/kdevplatform-1.7.1/work/kdevplatform-1.7.1/language/duchain/classdeclaration.cpp:138
#9  0x00007f888f06ea0e in Php::TypeBuilder::visitStatement (this=this@entry=0x7f887ed86c20, node=node@entry=0x7f88082f51f0) at kdevelop-php-1.7.1/duchain/builders/typebuilder.cpp:537
#10 0x00007f888f06118c in Php::DeclarationBuilder::visitStatement (this=0x7f887ed86c20, node=0x7f88082f51f0) at kdevelop-php-1.7.1/duchain/builders/declarationbuilder.cpp:1242
#11 0x00007f888ee10df6 in Php::DefaultVisitor::visitTopStatement (this=0x7f887ed86c78, node=0x7f88082f51a8) at kdevelop-php-1.7.1_build/parser/phpdefaultvisitor.cpp:1016
#12 0x00007f888ee101fd in Php::DefaultVisitor::visitInnerStatementList (this=0x7f887ed86c78, node=<optimized out>) at kdevelop-php-1.7.1_build/parser/phpdefaultvisitor.cpp:555
#13 0x00007f888f065dd2 in Php::ContextBuilder::visitClassStatement (this=this@entry=0x7f887ed86c20, node=node@entry=0x7f88082415a8) at kdevelop-php-1.7.1/duchain/builders/contextbuilder.cpp:258
#14 0x00007f888f06e3f0 in Php::TypeBuilder::visitClassStatement (this=this@entry=0x7f887ed86c20, node=node@entry=0x7f88082415a8) at kdevelop-php-1.7.1/duchain/builders/typebuilder.cpp:309
#15 0x00007f888f05eb5f in Php::DeclarationBuilder::visitClassStatement (this=0x7f887ed86c20, node=0x7f88082415a8) at kdevelop-php-1.7.1/duchain/builders/declarationbuilder.cpp:367
#16 0x00007f888ee0f8bd in Php::DefaultVisitor::visitClassBody (this=0x7f887ed86c78, node=<optimized out>) at kdevelop-php-1.7.1_build/parser/phpdefaultvisitor.cpp:205
#17 0x00007f888f066732 in Php::ContextBuilder::visitClassDeclarationStatement (this=this@entry=0x7f887ed86c20, node=node@entry=0x7f88082413a0) at kdevelop-php-1.7.1/duchain/builders/contextbuilder.cpp:214
#18 0x00007f888f06b8c5 in Php::TypeBuilder::visitClassDeclarationStatement (this=this@entry=0x7f887ed86c20, node=node@entry=0x7f88082413a0) at kdevelop-php-1.7.1/duchain/builders/typebuilder.cpp:282
#19 0x00007f888f05aa28 in Php::DeclarationBuilder::visitClassDeclarationStatement (this=0x7f887ed86c20, node=0x7f88082413a0) at kdevelop-php-1.7.1/duchain/builders/declarationbuilder.cpp:183
#20 0x00007f888ee10e10 in Php::DefaultVisitor::visitTopStatement (this=0x7f887ed86c78, node=0x7f8808241358) at kdevelop-php-1.7.1_build/parser/phpdefaultvisitor.cpp:1018
#21 0x00007f888f058f45 in Php::DeclarationBuilder::visitOuterTopStatement (this=0x7f887ed86c20, node=0x7f8808241328) at kdevelop-php-1.7.1/duchain/builders/declarationbuilder.cpp:899
#22 0x00007f888ee108bd in Php::DefaultVisitor::visitStart (this=0x7f887ed86c78, node=<optimized out>) at kdevelop-php-1.7.1_build/parser/phpdefaultvisitor.cpp:843
#23 0x00007f888f067c56 in Php::ContextBuilder::startVisiting (this=0x7f887ed86c20, node=0x7f880810dfd0) at kdevelop-php-1.7.1/duchain/builders/contextbuilder.cpp:130
#24 0x00007f888f059d2a in supportBuild (context=0x7f88082f0b40, node=0x7f880810dfd0, this=0x7f887ed86c20) at /usr/include/kdevplatform/language/duchain/builders/abstractcontextbuilder.h:133
#25 supportBuild (context=<optimized out>, node=0x7f880810dfd0, this=0x7f887ed86c20) at /usr/include/kdevplatform/language/duchain/builders/abstracttypebuilder.h:85
#26 Php::DeclarationBuilder::supportBuild (this=0x7f887ed86c20, node=0x7f880810dfd0, context=<optimized out>) at kdevelop-php-1.7.1/duchain/builders/declarationbuilder.cpp:1426
#27 0x00007f888f059f74 in build (updateContext=..., node=0x7f880810dfd0, url=..., this=0x7f887ed86c20) at /usr/include/kdevplatform/language/duchain/builders/abstractcontextbuilder.h:113
#28 Php::DeclarationBuilder::build (this=this@entry=0x7f887ed86c20, url=..., node=node@entry=0x7f880810dfd0, updateContext=...) at kdevelop-php-1.7.1/duchain/builders/declarationbuilder.cpp:151
#29 0x00007f888f2d3273 in Php::ParseJob::run (this=0x6608770) at kdevelop-php-1.7.1/phpparsejob.cpp:132
#30 0x00007f89330c2622 in ThreadWeaver::JobRunHelper::runTheJob (this=this@entry=0x7f887ed86e20, th=th@entry=0x4be1de0, job=job@entry=0x6608770) at /var/tmp/portage/kde-base/kdelibs-4.14.6-r1/work/kdelibs-4.14.6/threadweaver/Weaver/Job.cpp:106
#31 0x00007f89330c27de in ThreadWeaver::Job::execute (this=0x6608770, th=0x4be1de0) at /var/tmp/portage/kde-base/kdelibs-4.14.6-r1/work/kdelibs-4.14.6/threadweaver/Weaver/Job.cpp:135
#32 0x00007f89330c203b in ThreadWeaver::Thread::run (this=0x4be1de0) at /var/tmp/portage/kde-base/kdelibs-4.14.6-r1/work/kdelibs-4.14.6/threadweaver/Weaver/Thread.cpp:108
#33 0x00007f893c2d156f in QThreadPrivate::start (arg=0x4be1de0) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/thread/qthread_unix.cpp:349
#34 0x00007f893b9a43a4 in start_thread (arg=0x7f887ed87700) at pthread_create.c:310
#35 0x00007f893bc9ea5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f887cebd700 (LWP 25583)):
#0  0x00007f8935dc441f in g_main_context_query (context=context@entry=0x7f88100009a0, max_priority=<optimized out>, timeout=timeout@entry=0x7f887cebcd2c, fds=fds@entry=0x7f8810003620, n_fds=n_fds@entry=1) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gmain.c:3539
#1  0x00007f8935dc4a72 in g_main_context_iterate (context=context@entry=0x7f88100009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gmain.c:3763
#2  0x00007f8935dc4c0c in g_main_context_iteration (context=0x7f88100009a0, may_block=1) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gmain.c:3842
#3  0x00007f893c40303e in QEventDispatcherGlib::processEvents (this=0x7f88100008c0, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventdispatcher_glib.cpp:452
#4  0x00007f893c3d44af in QEventLoop::processEvents (this=this@entry=0x7f887cebce60, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventloop.cpp:149
#5  0x00007f893c3d47a5 in QEventLoop::exec (this=this@entry=0x7f887cebce60, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventloop.cpp:204
#6  0x00007f893c2cedff in QThread::exec (this=<optimized out>) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/thread/qthread.cpp:538
#7  0x00007f893c2d156f in QThreadPrivate::start (arg=0x6358db0) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/thread/qthread_unix.cpp:349
#8  0x00007f893b9a43a4 in start_thread (arg=0x7f887cebd700) at pthread_create.c:310
#9  0x00007f893bc9ea5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f887bfe8700 (LWP 25584)):
#0  0x00007f893bc95e0d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8935dc4b04 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f8814002f10, timeout=-1, context=0x7f88140009a0) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gmain.c:4076
#2  g_main_context_iterate (context=context@entry=0x7f88140009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gmain.c:3776
#3  0x00007f8935dc4c0c in g_main_context_iteration (context=0x7f88140009a0, may_block=1) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gmain.c:3842
#4  0x00007f893c40303e in QEventDispatcherGlib::processEvents (this=0x7f88140008c0, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventdispatcher_glib.cpp:452
#5  0x00007f893c3d44af in QEventLoop::processEvents (this=this@entry=0x7f887bfe7e60, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventloop.cpp:149
#6  0x00007f893c3d47a5 in QEventLoop::exec (this=this@entry=0x7f887bfe7e60, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventloop.cpp:204
#7  0x00007f893c2cedff in QThread::exec (this=<optimized out>) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/thread/qthread.cpp:538
#8  0x00007f893c2d156f in QThreadPrivate::start (arg=0x58dff40) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/thread/qthread_unix.cpp:349
#9  0x00007f893b9a43a4 in start_thread (arg=0x7f887bfe8700) at pthread_create.c:310
#10 0x00007f893bc9ea5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f893f4d2780 (LWP 25481)):
#0  0x00007f893bc91eed in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8935e056a0 in read (__nbytes=16, __buf=0x7ffd1b82fb70, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  g_wakeup_acknowledge (wakeup=0x2451230) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gwakeup.c:210
#3  0x00007f8935dc4634 in g_main_context_check (context=context@entry=0x250b7f0, max_priority=2147483647, fds=fds@entry=0x4d69120, n_fds=n_fds@entry=13) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gmain.c:3579
#4  0x00007f8935dc4a9b in g_main_context_iterate (context=context@entry=0x250b7f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gmain.c:3778
#5  0x00007f8935dc4c0c in g_main_context_iteration (context=0x250b7f0, may_block=1) at /var/tmp/portage/dev-libs/glib-2.42.2/work/glib-2.42.2/glib/gmain.c:3842
#6  0x00007f893c40301e in QEventDispatcherGlib::processEvents (this=0x2454890, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventdispatcher_glib.cpp:450
#7  0x00007f893c9a6cc6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r2/work/qt-everywhere-opensource-src-4.8.6/src/gui/kernel/qguieventdispatcher_glib.cpp:204
#8  0x00007f893c3d44af in QEventLoop::processEvents (this=this@entry=0x7ffd1b82fda0, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventloop.cpp:149
#9  0x00007f893c3d47a5 in QEventLoop::exec (this=this@entry=0x7ffd1b82fda0, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventloop.cpp:204
#10 0x00007f893c3d9c09 in QCoreApplication::exec () at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qcoreapplication.cpp:1225
#11 0x00007f893c906d0c in QApplication::exec () at /var/tmp/portage/dev-qt/qtgui-4.8.6-r2/work/qt-everywhere-opensource-src-4.8.6/src/gui/kernel/qapplication.cpp:3823
#12 0x0000000000410408 in main (argc=<optimized out>, argv=<optimized out>) at /var/tmp/portage/dev-util/kdevelop-4.7.1/work/kdevelop-4.7.1/app/main.cpp:582

Possible duplicates by query: bug 296520, bug 273128.