*** Bug 251540 has been marked as a duplicate of this bug. ***

better backtrace from duplicated bug. Anyone an idea what could happen here?

@ reporters: Please try to run kdevelop through valgrind and reproduce the issue, maybe that gives me a hint:

kdevelop --sessions => find the {HASH} for your session, then:

KDEV_SESSION={HASH} valgrind --track-origins=yes kdevelop.bin

reproduce => send log from command line

 -- Backtrace:
Application: KDevelop (kdevelop.bin), signal: Segmentation fault
[Current thread is 1 (Thread 0xb73566d0 (LWP 12931))]

Thread 6 (Thread 0xb360bb90 (LWP 12936)):
#0  0xb781f424 in __kernel_vsyscall ()
#1  0x0048fef2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from
/lib/libpthread.so.0
#2  0x4bf3d514 in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/qt4/lib/libQtCore.so.4
#3  0xb74bf135 in KDevelop::DUChainPrivate::CleanupThread::run (this=0x82a1228)
at /usr/src/redhat/BUILD/kdevplatform-1.0.2/language/duchain/duchain.cpp:286
#4  0x4bf3ca0e in ?? () from /usr/lib/qt4/lib/libQtCore.so.4
#5  0x0048b832 in start_thread () from /lib/libpthread.so.0
#6  0x003cbe0e in clone () from /lib/libc.so.6

Thread 5 (Thread 0xb1aa1b90 (LWP 12938)):
#0  0x007dae34 in clock_gettime () from /lib/librt.so.1
#1  0x4c06e246 in ?? () from /usr/lib/qt4/lib/libQtCore.so.4
#2  0x4c0730cb in ?? () from /usr/lib/qt4/lib/libQtCore.so.4
#3  0x4c073efa in ?? () from /usr/lib/qt4/lib/libQtCore.so.4
#4  0x4c071439 in ?? () from /usr/lib/qt4/lib/libQtCore.so.4
#5  0x4c0714b5 in ?? () from /usr/lib/qt4/lib/libQtCore.so.4
#6  0x463c66d3 in g_main_context_prepare () from /lib/libglib-2.0.so.0
#7  0x463c6e16 in ?? () from /lib/libglib-2.0.so.0
#8  0x463c75e5 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#9  0x4c071944 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/qt4/lib/libQtCore.so.4
#10 0x4c0431ed in
QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/qt4/lib/libQtCore.so.4
#11 0x4c04357d in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/qt4/lib/libQtCore.so.4
#12 0x4bf3982f in QThread::exec() () from /usr/lib/qt4/lib/libQtCore.so.4
#13 0xb75d3b18 in KDevelop::CompletionWorkerThread::run (this=0x8343f18) at
/usr/src/redhat/BUILD/kdevplatform-1.0.2/language/codecompletion/codecompletionmodel.cpp:81
#14 0x4bf3ca0e in ?? () from /usr/lib/qt4/lib/libQtCore.so.4
#15 0x0048b832 in start_thread () from /lib/libpthread.so.0
#16 0x003cbe0e in clone () from /lib/libc.so.6

Thread 4 (Thread 0xb0482b90 (LWP 12968)):
#0  0xb781f424 in __kernel_vsyscall ()
#1  0x0048fbc5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0x4bf3d536 in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/qt4/lib/libQtCore.so.4
#3  0x4f28bb8d in
ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=<value
optimized out>, th=<value optimized out>)
    at
/usr/src/redhat/BUILD/kdelibs-4.4.5/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x4f28e9cc in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=)
at
/usr/src/redhat/BUILD/kdelibs-4.4.5/threadweaver/Weaver/WorkingHardState.cpp:80
#5  0x4f28a46b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=) at
/usr/src/redhat/BUILD/kdelibs-4.4.5/threadweaver/Weaver/WeaverImpl.cpp:356
#6  0x4f28eb32 in ThreadWeaver::WorkingHardState::applyForWork (this=<value
optimized out>, th=<value optimized out>)
    at
/usr/src/redhat/BUILD/kdelibs-4.4.5/threadweaver/Weaver/WorkingHardState.cpp:71
#7  0x4f28b1c3 in ThreadWeaver::WeaverImpl::applyForWork (this=<value optimized
out>, th=) at
/usr/src/redhat/BUILD/kdelibs-4.4.5/threadweaver/Weaver/WeaverImpl.cpp:351
#8  0x4f28eb51 in ThreadWeaver::WorkingHardState::applyForWork (this=<value
optimized out>, th=<value optimized out>)
    at
/usr/src/redhat/BUILD/kdelibs-4.4.5/threadweaver/Weaver/WorkingHardState.cpp:74
#9  0x4f28b1c3 in ThreadWeaver::WeaverImpl::applyForWork (this=<value optimized
out>, th=) at
/usr/src/redhat/BUILD/kdelibs-4.4.5/threadweaver/Weaver/WeaverImpl.cpp:351
#10 0x4f28c88e in ThreadWeaver::ThreadRunHelper::run (this=<value optimized
out>, parent=<value optimized out>, th=<value optimized out>)
    at /usr/src/redhat/BUILD/kdelibs-4.4.5/threadweaver/Weaver/Thread.cpp:87
#11 0x4f28cf5b in ThreadWeaver::Thread::run (this=) at
/usr/src/redhat/BUILD/kdelibs-4.4.5/threadweaver/Weaver/Thread.cpp:142
#12 0x4bf3ca0e in ?? () from /usr/lib/qt4/lib/libQtCore.so.4
#13 0x0048b832 in start_thread () from /lib/libpthread.so.0
#14 0x003cbe0e in clone () from /lib/libc.so.6

Thread 3 (Thread 0xaf8b2b90 (LWP 12978)):
#0  0xb781f424 in __kernel_vsyscall ()
#1  0x0048fbc5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0x4bf3d536 in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/qt4/lib/libQtCore.so.4
#3  0x4f28bb8d in
ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=<value
optimized out>, th=<value optimized out>)
    at
/usr/src/redhat/BUILD/kdelibs-4.4.5/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x4f28e9cc in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=)
at
/usr/src/redhat/BUILD/kdelibs-4.4.5/threadweaver/Weaver/WorkingHardState.cpp:80
#5  0x4f28a46b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=) at
/usr/src/redhat/BUILD/kdelibs-4.4.5/threadweaver/Weaver/WeaverImpl.cpp:356
#6  0x4f28eb32 in ThreadWeaver::WorkingHardState::applyForWork (this=<value
optimized out>, th=<value optimized out>)
    at
/usr/src/redhat/BUILD/kdelibs-4.4.5/threadweaver/Weaver/WorkingHardState.cpp:71
#7  0x4f28b1c3 in ThreadWeaver::WeaverImpl::applyForWork (this=<value optimized
out>, th=) at
/usr/src/redhat/BUILD/kdelibs-4.4.5/threadweaver/Weaver/WeaverImpl.cpp:351
#8  0x4f28c88e in ThreadWeaver::ThreadRunHelper::run (this=<value optimized
out>, parent=<value optimized out>, th=<value optimized out>)
    at /usr/src/redhat/BUILD/kdelibs-4.4.5/threadweaver/Weaver/Thread.cpp:87
#9  0x4f28cf5b in ThreadWeaver::Thread::run (this=) at
/usr/src/redhat/BUILD/kdelibs-4.4.5/threadweaver/Weaver/Thread.cpp:142
#10 0x4bf3ca0e in ?? () from /usr/lib/qt4/lib/libQtCore.so.4
#11 0x0048b832 in start_thread () from /lib/libpthread.so.0
#12 0x003cbe0e in clone () from /lib/libc.so.6

Thread 2 (Thread 0xae0a8b90 (LWP 13002)):
#0  0xb781f424 in __kernel_vsyscall ()
#1  0x0048fbc5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0x4e564fd5 in QDateTime::QDateTime(QDate const&) () from
/usr/lib/qt4/lib/libQtScript.so.4
#3  0x4e565021 in QDateTime::QDateTime(QDate const&) () from
/usr/lib/qt4/lib/libQtScript.so.4
#4  0x0048b832 in start_thread () from /lib/libpthread.so.0
#5  0x003cbe0e in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb73566d0 (LWP 12931)):
[KCrash Handler]
#6  0x00579680 in __dynamic_cast () from /usr/lib/libstdc++.so.6
#7  0xb1d55ebb in Php::CodeCompletionContext::isValidCompletionItem
(this=0xafb19140, dec=0xe753800) at
/usr/src/redhat/BUILD/kdevelop-php-1.0.2/completion/context.cpp:1577
#8  0xb1d4ec10 in Php::CodeCompletionContext::completionItems (this=0xafb19140,
abort=@0x8343f40, fullCompletion=false) at
/usr/src/redhat/BUILD/kdevelop-php-1.0.2/completion/context.cpp:1384
#9  0xb75cd9ad in KDevelop::CodeCompletionWorker::computeCompletions
(this=0x8343f30, context=..., position=..., view=0xf167ec8, contextRange=...,
contextText=...)
    at
/usr/src/redhat/BUILD/kdevplatform-1.0.2/language/codecompletion/codecompletionworker.cpp:159
#10 0xb75ce4be in KDevelop::CodeCompletionWorker::computeCompletions
(this=0x8343f30, context=..., position=..., view=0xf167ec8)
    at
/usr/src/redhat/BUILD/kdevplatform-1.0.2/language/codecompletion/codecompletionworker.cpp:119
#11 0xb75ceaa1 in KDevelop::CodeCompletionWorker::qt_metacall (this=0x8343f30,
_c=InvokeMetaMethod, _id=1, _a=0xafb3ad08)
    at
/usr/src/redhat/BUILD/kdevplatform-1.0.2-build/language/codecompletionworker.moc:84
#12 0xb1d393e2 in Php::CodeCompletionWorker::qt_metacall (this=0x8343f30,
_c=InvokeMetaMethod, _id=5, _a=0xafb3ad08) at
/usr/src/redhat/BUILD/kdevelop-php-1.0.2-build/completion/worker.moc:66
#13 0x4c04a75b in QMetaObject::metacall(QObject*, QMetaObject::Call, int,
void**) () from /usr/lib/qt4/lib/libQtCore.so.4
#14 0x4c0547e6 in QMetaCallEvent::placeMetaCall(QObject*) () from
/usr/lib/qt4/lib/libQtCore.so.4
#15 0x4c056448 in QObject::event(QEvent*) () from
/usr/lib/qt4/lib/libQtCore.so.4
#16 0x4cdae45f in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from
/usr/lib/qt4/lib/libQtGui.so.4
#17 0x4cdb1b0e in QApplication::notify(QObject*, QEvent*) () from
/usr/lib/qt4/lib/libQtGui.so.4
#18 0x4d8f88fa in KApplication::notify (this=<value optimized out>,
receiver=<value optimized out>, event=<value optimized out>)
    at /usr/src/redhat/BUILD/kdelibs-4.4.5/kdeui/kernel/kapplication.cpp:302
#19 0x4c04421b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from
/usr/lib/qt4/lib/libQtCore.so.4
#20 0x4c045051 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int,
QThreadData*) () from /usr/lib/qt4/lib/libQtCore.so.4
#21 0x4c04531d in QCoreApplication::sendPostedEvents(QObject*, int) () from
/usr/lib/qt4/lib/libQtCore.so.4
#22 0x4c07160f in ?? () from /usr/lib/qt4/lib/libQtCore.so.4
#23 0x463c3d33 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#24 0x463c716f in ?? () from /lib/libglib-2.0.so.0
#25 0x463c75e5 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#26 0x4c071928 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/qt4/lib/libQtCore.so.4
#27 0x4ce67215 in ?? () from /usr/lib/qt4/lib/libQtGui.so.4
#28 0x4c0431ed in
QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/qt4/lib/libQtCore.so.4
#29 0x4c04357d in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/qt4/lib/libQtCore.so.4
#30 0x4c0453e1 in QCoreApplication::exec() () from
/usr/lib/qt4/lib/libQtCore.so.4
#31 0x4cdadbe7 in QApplication::exec() () from /usr/lib/qt4/lib/libQtGui.so.4
#32 0x0804ff06 in main ()

I cannot do anything against this without a way to reproduce it. If either of you are able to do so, please run it through valgrind and report me the log it produces. Please use KDevelop 4.1 (one of it's beta releases is fine). The valgrind command would be this:

valgrind --track-origins=yes kdevelop

then reproduce the issue please.

From bug 282141:

- What I was doing when the application crashed:

just typing code, didn't see if autocompletion was trying to show something.
don't know if it is related, but I just created a branch in git before editing
this file.

*** Bug 282141 has been marked as a duplicate of this bug. ***

I tried to reproduce the problem  with "valgrind --track-origins=yes kdevelop" but I didn't get any crash, only stack traces in the console. I paste them here.
Maybe it could be useful.

==26657== Thread 2:
==26657== Syscall param write(buf) points to uninitialised byte(s)
==26657==    at 0x7850DBD: ??? (in /lib64/libc-2.12.1.so)
==26657==    by 0x647634E: QFSFileEnginePrivate::writeFdFh(char const*, long long) (qcore_unix_p.h:262)
==26657==    by 0x643756B: QFile::flush() (qfile.cpp:1347)
==26657==    by 0x6437CBF: QFile::size() const (qfile.cpp:144)
==26657==    by 0xA08D97F: KDevelop::TopDUContextDynamicData::store() (topducontextdynamicdata.cpp:572)
==26657==    by 0xA0644AE: KDevelop::DUChainPrivate::doMoreCleanup(int, bool) (duchain.cpp:751)
==26657==    by 0xA06577C: KDevelop::DUChainPrivate::CleanupThread::run() (duchain.cpp:295)
==26657==    by 0x63B91E4: QThreadPrivate::start(void*) (qthread_unix.cpp:331)
==26657==    by 0x7AFFD24: start_thread (in /lib64/libpthread-2.12.1.so)
==26657==    by 0x785FD6C: clone (in /lib64/libc-2.12.1.so)
==26657==  Address 0x321e43d4 is 340 bytes inside a block of size 32,768 alloc'd
==26657==    at 0x4C256DD: malloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==26657==    by 0x63BB2C7: QByteArray::realloc(int) (qbytearray.cpp:1428)
==26657==    by 0x63BB3E8: QByteArray::resize(int) (qbytearray.cpp:1396)
==26657==    by 0x6439C1B: QFile::writeData(char const*, long long) (qringbuffer_p.h:158)
==26657==    by 0x643DFB6: QIODevice::write(char const*, long long) (qiodevice.cpp:1362)
==26657==    by 0xA08D77C: KDevelop::TopDUContextDynamicData::store() (topducontextdynamicdata.cpp:555)
==26657==    by 0xA0644AE: KDevelop::DUChainPrivate::doMoreCleanup(int, bool) (duchain.cpp:751)
==26657==    by 0xA06577C: KDevelop::DUChainPrivate::CleanupThread::run() (duchain.cpp:295)
==26657==    by 0x63B91E4: QThreadPrivate::start(void*) (qthread_unix.cpp:331)
==26657==    by 0x7AFFD24: start_thread (in /lib64/libpthread-2.12.1.so)
==26657==    by 0x785FD6C: clone (in /lib64/libc-2.12.1.so)
==26657==  Uninitialised value was created by a stack allocation
==26657==    at 0x30EF2F60: ??? (in /usr/lib64/libkdev4phpduchain.so)
==26657== 
==26657== Syscall param write(buf) points to uninitialised byte(s)
==26657==    at 0x7850DBD: ??? (in /lib64/libc-2.12.1.so)
==26657==    by 0x647634E: QFSFileEnginePrivate::writeFdFh(char const*, long long) (qcore_unix_p.h:262)
==26657==    by 0x6439B76: QFile::writeData(char const*, long long) (qfile.cpp:1635)
==26657==    by 0x643DFB6: QIODevice::write(char const*, long long) (qiodevice.cpp:1362)
==26657==    by 0xA0DF774: KDevelop::ItemRepository<KDevelop::UsesItem, KDevelop::UsesRequestItem, true, true, 0u, 1048576u>::store() (itemrepository.h:416)
==26657==    by 0xA1318E3: KDevelop::ItemRepositoryRegistry::store() (itemrepository.cpp:346)
==26657==    by 0xA064D9A: KDevelop::DUChainPrivate::doMoreCleanup(int, bool) (duchain.cpp:855)
==26657==    by 0xA06577C: KDevelop::DUChainPrivate::CleanupThread::run() (duchain.cpp:295)
==26657==    by 0x63B91E4: QThreadPrivate::start(void*) (qthread_unix.cpp:331)
==26657==    by 0x7AFFD24: start_thread (in /lib64/libpthread-2.12.1.so)
==26657==    by 0x785FD6C: clone (in /lib64/libc-2.12.1.so)
==26657==  Address 0x2bca41b4 is 244 bytes inside a block of size 65,536 alloc'd
==26657==    at 0x4C24C39: operator new[](unsigned long) (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==26657==    by 0xA0E19B1: KDevelop::ItemRepository<KDevelop::UsesItem, KDevelop::UsesRequestItem, true, true, 0u, 1048576u>::deleteItem(unsigned int) (itemrepository.h:1056)
==26657==    by 0xA0DBEC9: KDevelop::Uses::removeUse(KDevelop::DeclarationId const&, KDevelop::IndexedTopDUContext const&) (uses.cpp:164)
==26657==    by 0xA08171A: KDevelop::TopDUContext::clearUsedDeclarationIndices() (topducontext.cpp:1310)
==26657==    by 0x30C9595B: Php::ParseJob::run() (abstractusebuilder.h:67)
==26657==    by 0xF355E40: ??? (in /usr/lib64/libthreadweaver.so.4.6.0)
==26657==    by 0xF355F7D: ThreadWeaver::Job::execute(ThreadWeaver::Thread*) (in /usr/lib64/libthreadweaver.so.4.6.0)
==26657==    by 0xF35572E: ??? (in /usr/lib64/libthreadweaver.so.4.6.0)
==26657==    by 0xF3557E7: ThreadWeaver::Thread::run() (in /usr/lib64/libthreadweaver.so.4.6.0)
==26657==    by 0x63B91E4: QThreadPrivate::start(void*) (qthread_unix.cpp:331)
==26657==    by 0x7AFFD24: start_thread (in /lib64/libpthread-2.12.1.so)
==26657==    by 0x785FD6C: clone (in /lib64/libc-2.12.1.so)
==26657==  Uninitialised value was created by a stack allocation
==26657==    at 0x30EF2F60: ??? (in /usr/lib64/libkdev4phpduchain.so)
==26657== 


==26657== Thread 1:
==26657== Conditional jump or move depends on uninitialised value(s)
==26657==    at 0x2C71353A: Cpp::AdaptDefinitionSignatureAssistant::parseJobFinished(KDevelop::ParseJob*) (signatureassistant.cpp:388)
==26657==    by 0x2C713EBF: Cpp::AdaptDefinitionSignatureAssistant::qt_metacall(QMetaObject::Call, int, void**) (signatureassistant.moc:75)
==26657==    by 0x64B7DBE: QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (qobject.cpp:3278)
==26657==    by 0xA03036E: KDevelop::BackgroundParser::parseJobFinished(KDevelop::ParseJob*) (backgroundparser.moc:215)
==26657==    by 0xA030B12: KDevelop::BackgroundParser::parseComplete(ThreadWeaver::Job*) (backgroundparser.cpp:513)
==26657==    by 0xA033F23: KDevelop::BackgroundParser::qt_metacall(QMetaObject::Call, int, void**) (backgroundparser.moc:191)
==26657==    by 0x64B7DBE: QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (qobject.cpp:3278)
==26657==    by 0xF355B61: ThreadWeaver::Job::done(ThreadWeaver::Job*) (in /usr/lib64/libthreadweaver.so.4.6.0)
==26657==    by 0xF355C4B: ThreadWeaver::Job::qt_metacall(QMetaObject::Call, int, void**) (in /usr/lib64/libthreadweaver.so.4.6.0)
==26657==    by 0xF35789F: ThreadWeaver::JobCollection::qt_metacall(QMetaObject::Call, int, void**) (in /usr/lib64/libthreadweaver.so.4.6.0)
==26657==    by 0xA039F49: KDevelop::ParseJob::qt_metacall(QMetaObject::Call, int, void**) (parsejob.moc:100)
==26657==    by 0x64B78B9: QObject::event(QEvent*) (qobject.cpp:1217)
==26657==  Uninitialised value was created by a heap allocation
==26657==    at 0x4C251D7: operator new(unsigned long) (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==26657==    by 0x2C7100A9: Cpp::StaticCodeAssistant::eventuallyStartAssistant() (codeassistant.cpp:97)
==26657==    by 0x2C710C9B: Cpp::StaticCodeAssistant::qt_metacall(QMetaObject::Call, int, void**) (codeassistant.moc:98)
==26657==    by 0x64B78B9: QObject::event(QEvent*) (qobject.cpp:1217)
==26657==    by 0x6992793: QApplicationPrivate::notify_helper(QObject*, QEvent*) (qapplication.cpp:4481)
==26657==    by 0x6997369: QApplication::notify(QObject*, QEvent*) (qapplication.cpp:4360)
==26657==    by 0x5CA9E05: KApplication::notify(QObject*, QEvent*) (in /usr/lib64/libkdeui.so.5.6.0)
==26657==    by 0x404CB8: KDevelopApplication::notify(QObject*, QEvent*) (main.cpp:90)
==26657==    by 0x64A331B: QCoreApplication::notifyInternal(QObject*, QEvent*) (qcoreapplication.cpp:787)
==26657==    by 0x64A6B24: QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (qcoreapplication.h:215)
==26657==    by 0x64CE792: postEventSourceDispatch(_GSource*, int (*)(void*), void*) (qcoreapplication.h:220)
==26657==    by 0xCC31DC2: g_main_context_dispatch (in /lib64/libglib-2.0.so.0.2800.6)
==26657==

I think this bug should not occur anymore in recent KDevelop (4.2+) versions. Christian, your valgrind log also only shows unrelated issues.

Please everyone - update to KDevelop 4.2 (or even the upcoming 4.3) and try to reproduce. If this is still an issue, please notify me by re-opening this bug or at least commenting on it.

Thanks

I'm currently with kdevelop 4.2.2 on Mageia.
4.2.3 is not available in the repositories at the moment.

I did try to compile kdevelop 4.2.3 by myself, but I could not find informations on how to include kdevelop-php in the compilation on http://techbase.kde.org/KDevelop4/HowToCompile

Is it possible to explain this particular point ?
thank you

Similar/same steps as if you'd build KDevelop. I've extended the techbase page a bit. Make sure you have kdevelop-pg-qt around (or compile it yourself).

*** Bug 267301 has been marked as a duplicate of this bug. ***