Bug 304173

Application: kdevelop (4.4.60)
KDE Platform Version: 4.8.4 (4.8.4) (Compiled from sources)
Qt Version: 4.8.2
Operating System: Linux 3.4.4-2-ARCH x86_64

-- Information about the crash:
- What I was doing when the application crashed:
I was just starting KDevelop and as soon as the session loaded I hit the "debug" button to start a debugging session.

The crash can be reproduced some of the time.

-- Backtrace:
Application: KDevelop (kdevelop), signal: Segmentation fault
Using host libthread_db library "/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f257a7e8780 (LWP 1019))]

Thread 10 (Thread 0x7f255be9d700 (LWP 1021)):
#0  0x00007f2575e8ec61 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007f2576140053 in QWaitConditionPrivate::wait (this=0x234af40, time=1000) at thread/qwaitcondition_unix.cpp:84
#2  0x00007f257613fe19 in QWaitCondition::wait (this=0x234ece8, mutex=0x234ecf0, time=1000) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f2571e2ccab in KDevelop::DUChainPrivate::CleanupThread::run (this=0x234ecd0) at /home/kde/src/extragear/kdevelop/kdevplatform/language/duchain/duchain.cpp:282
#4  0x00007f257613ea48 in QThreadPrivate::start (arg=0x234ecd0) at thread/qthread_unix.cpp:307
#5  0x00007f2575e8ae0e in start_thread () from /lib/libpthread.so.0
#6  0x00007f2573e6b1ed in clone () from /lib/libc.so.6

Thread 9 (Thread 0x7f254b5eb700 (LWP 1042)):
#0  0x00007f2573e6306f in poll () from /lib/libc.so.6
#1  0x00007f256d70e774 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f256d70e894 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f25762b6452 in QEventDispatcherGlib::processEvents (this=0x7f25440008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f257627692c in QEventLoop::processEvents (this=0x7f254b5eadb0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f2576276ac0 in QEventLoop::exec (this=0x7f254b5eadb0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f257613c0c3 in QThread::exec (this=0x2caad00) at thread/qthread.cpp:501
#7  0x00007f257613ea48 in QThreadPrivate::start (arg=0x2caad00) at thread/qthread_unix.cpp:307
#8  0x00007f2575e8ae0e in start_thread () from /lib/libpthread.so.0
#9  0x00007f2573e6b1ed in clone () from /lib/libc.so.6

Thread 8 (Thread 0x7f2541cd6700 (LWP 1056)):
#0  0x00007f2573e6306f in poll () from /lib/libc.so.6
#1  0x00007f256d70e774 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f256d70e894 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f25762b6452 in QEventDispatcherGlib::processEvents (this=0x7f25380008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f257627692c in QEventLoop::processEvents (this=0x7f2541cd5db0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f2576276ac0 in QEventLoop::exec (this=0x7f2541cd5db0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f257613c0c3 in QThread::exec (this=0x37d66d0) at thread/qthread.cpp:501
#7  0x00007f257613ea48 in QThreadPrivate::start (arg=0x37d66d0) at thread/qthread_unix.cpp:307
#8  0x00007f2575e8ae0e in start_thread () from /lib/libpthread.so.0
#9  0x00007f2573e6b1ed in clone () from /lib/libc.so.6

Thread 7 (Thread 0x7f25414d5700 (LWP 1057)):
#0  0x00007f2573e6306f in poll () from /lib/libc.so.6
#1  0x00007f256d70e774 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f256d70e894 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f25762b6452 in QEventDispatcherGlib::processEvents (this=0x7f25300008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f257627692c in QEventLoop::processEvents (this=0x7f25414d4db0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f2576276ac0 in QEventLoop::exec (this=0x7f25414d4db0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f257613c0c3 in QThread::exec (this=0x3738200) at thread/qthread.cpp:501
#7  0x00007f257613ea48 in QThreadPrivate::start (arg=0x3738200) at thread/qthread_unix.cpp:307
#8  0x00007f2575e8ae0e in start_thread () from /lib/libpthread.so.0
#9  0x00007f2573e6b1ed in clone () from /lib/libc.so.6

Thread 6 (Thread 0x7f2537fff700 (LWP 1070)):
#0  0x00007f256d74a4b8 in g_mutex_lock () from /usr/lib/libglib-2.0.so.0
#1  0x00007f256d70dfb9 in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#2  0x00007f256d70e69b in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007f256d70e894 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007f25762b6452 in QEventDispatcherGlib::processEvents (this=0x7f252c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007f257627692c in QEventLoop::processEvents (this=0x7f2537ffed60, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f2576276ac0 in QEventLoop::exec (this=0x7f2537ffed60, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f257613c0c3 in QThread::exec (this=0x578a9b0) at thread/qthread.cpp:501
#8  0x00007f2576251451 in QInotifyFileSystemWatcherEngine::run (this=0x578a9b0) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f257613ea48 in QThreadPrivate::start (arg=0x578a9b0) at thread/qthread_unix.cpp:307
#10 0x00007f2575e8ae0e in start_thread () from /lib/libpthread.so.0
#11 0x00007f2573e6b1ed in clone () from /lib/libc.so.6

Thread 5 (Thread 0x7f2535c5b700 (LWP 1119)):
#0  0x00007f2575e8e8f4 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007f256b9cdc5b in WTF::TCMalloc_PageHeap::scavengerThread() () from /home/qt/4/lib/libQtWebKit.so.4
#2  0x00007f256b9cd20a in WTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /home/qt/4/lib/libQtWebKit.so.4
#3  0x00007f2575e8ae0e in start_thread () from /lib/libpthread.so.0
#4  0x00007f2573e6b1ed in clone () from /lib/libc.so.6

Thread 4 (Thread 0x7f253535a700 (LWP 1142)):
#0  0x00007f2575e8cdb4 in pthread_mutex_lock () from /lib/libpthread.so.0
#1  0x00007f256d74a4a1 in g_mutex_lock () from /usr/lib/libglib-2.0.so.0
#2  0x00007f256d70dfb9 in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#3  0x00007f256d70e69b in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007f256d70e894 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007f25762b6452 in QEventDispatcherGlib::processEvents (this=0x7f25281ea7d0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f257627692c in QEventLoop::processEvents (this=0x7f2535359d90, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f2576276ac0 in QEventLoop::exec (this=0x7f2535359d90, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f257613c0c3 in QThread::exec (this=0x4b29a60) at thread/qthread.cpp:501
#9  0x00007f257613c270 in QThread::run (this=0x4b29a60) at thread/qthread.cpp:568
#10 0x00007f257613ea48 in QThreadPrivate::start (arg=0x4b29a60) at thread/qthread_unix.cpp:307
#11 0x00007f2575e8ae0e in start_thread () from /lib/libpthread.so.0
#12 0x00007f2573e6b1ed in clone () from /lib/libc.so.6

Thread 3 (Thread 0x7f24e3522700 (LWP 1265)):
#0  0x00007f2575e8e8f4 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007f257614006f in QWaitConditionPrivate::wait (this=0x13fc480, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:86
#2  0x00007f257613fe19 in QWaitCondition::wait (this=0x13fc638, mutex=0xe565d0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f2578c72aa1 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x13fc610, th=0x6591480) at /home/kde/src/kde/kdelibs/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f2578c752eb in ThreadWeaver::WorkingHardState::applyForWork (this=0x11e44b0, th=0x6591480) at /home/kde/src/kde/kdelibs/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f2578c7415f in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7f24e3521dd0, parent=0x13fc610, th=th@entry=0x6591480) at /home/kde/src/kde/kdelibs/threadweaver/Weaver/Thread.cpp:87
#6  0x00007f2578c741eb in ThreadWeaver::Thread::run (this=0x6591480) at /home/kde/src/kde/kdelibs/threadweaver/Weaver/Thread.cpp:142
#7  0x00007f257613ea48 in QThreadPrivate::start (arg=0x6591480) at thread/qthread_unix.cpp:307
#8  0x00007f2575e8ae0e in start_thread () from /lib/libpthread.so.0
#9  0x00007f2573e6b1ed in clone () from /lib/libc.so.6

Thread 2 (Thread 0x7f24e2d21700 (LWP 1266)):
#0  0x00007f2575e8e8f4 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007f257614006f in QWaitConditionPrivate::wait (this=0x13fc480, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:86
#2  0x00007f257613fe19 in QWaitCondition::wait (this=0x13fc638, mutex=0xe565d0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f2578c72aa1 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x13fc610, th=0x7f24dc002c50) at /home/kde/src/kde/kdelibs/threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f2578c752eb in ThreadWeaver::WorkingHardState::applyForWork (this=0x11e44b0, th=0x7f24dc002c50) at /home/kde/src/kde/kdelibs/threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f2578c75304 in ThreadWeaver::WorkingHardState::applyForWork (this=0x11e44b0, th=0x7f24dc002c50) at /home/kde/src/kde/kdelibs/threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f2578c7415f in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7f24e2d20dd0, parent=0x13fc610, th=th@entry=0x7f24dc002c50) at /home/kde/src/kde/kdelibs/threadweaver/Weaver/Thread.cpp:87
#7  0x00007f2578c741eb in ThreadWeaver::Thread::run (this=0x7f24dc002c50) at /home/kde/src/kde/kdelibs/threadweaver/Weaver/Thread.cpp:142
#8  0x00007f257613ea48 in QThreadPrivate::start (arg=0x7f24dc002c50) at thread/qthread_unix.cpp:307
#9  0x00007f2575e8ae0e in start_thread () from /lib/libpthread.so.0
#10 0x00007f2573e6b1ed in clone () from /lib/libc.so.6

Thread 1 (Thread 0x7f257a7e8780 (LWP 1019)):
[KCrash Handler]
#6  0x00007f25729ca0a7 in QTJSC::X86Assembler::setRel32 (from=0x7f24e3dcf53d, to=0x7f257a80f030) at ../3rdparty/javascriptcore/JavaScriptCore/assembler/X86Assembler.h:1603
#7  0x00007f25729d3eb7 in QTJSC::X86Assembler::linkCall (code=0x7f24e3dce000, from=..., to=0x7f257a80f030) at ../3rdparty/javascriptcore/JavaScriptCore/assembler/X86Assembler.h:1506
#8  0x00007f25729d43cf in QTJSC::MacroAssemblerX86_64::linkCall (code=0x7f24e3dce000, call=..., function=...) at ../3rdparty/javascriptcore/JavaScriptCore/assembler/MacroAssemblerX86_64.h:434
#9  0x00007f25729d4d98 in QTJSC::LinkBuffer::link (this=0x7fffc64b4760, call=..., function=...) at ../3rdparty/javascriptcore/JavaScriptCore/assembler/LinkBuffer.h:85
#10 0x00007f25729d2a59 in QTJSC::JIT::privateCompile (this=0x7fffc64b4980) at ../3rdparty/javascriptcore/JavaScriptCore/jit/JIT.cpp:523
#11 0x00007f2572a2ce12 in QTJSC::JIT::compile (globalData=0x5b40d20, codeBlock=0x783e260) at ../3rdparty/javascriptcore/JavaScriptCore/jit/JIT.h:283
#12 0x00007f2572a2b647 in QTJSC::FunctionExecutable::generateJITCode (this=0x783dd60, exec=0x7f2540113100, scopeChainNode=0x783d060) at ../3rdparty/javascriptcore/JavaScriptCore/runtime/Executable.cpp:165
#13 0x00007f25729bd325 in QTJSC::FunctionExecutable::jitCode (this=0x783dd60, exec=0x7f2540113100, scopeChainNode=0x783d060) at ../3rdparty/javascriptcore/JavaScriptCore/runtime/Executable.h:336
#14 0x00007f25729ad477 in QTJSC::Interpreter::execute (this=0x5b445e0, functionExecutable=0x783dd60, callFrame=0x7f25401130b0, function=0x7f25400e8fc0, thisObj=0x7f25400c5e00, args=..., scopeChain=0x783d060, exception=0x5b41fb8) at ../3rdparty/javascriptcore/JavaScriptCore/interpreter/Interpreter.cpp:716
#15 0x00007f2572a42cbf in QTJSC::JSFunction::call (this=0x7f25400e8fc0, exec=0x7f25401130b0, thisValue=..., args=...) at ../3rdparty/javascriptcore/JavaScriptCore/runtime/JSFunction.cpp:122
#16 0x00007f2572a16e3f in QTJSC::call (exec=0x7f25401130b0, functionObject=..., callType=QTJSC::CallTypeJS, callData=..., thisValue=..., args=...) at ../3rdparty/javascriptcore/JavaScriptCore/runtime/CallData.cpp:62
#17 0x00007f2572af6ffd in QScriptValue::call (this=0x7832538, thisObject=..., args=...) at api/qscriptvalue.cpp:1604
#18 0x00007f25787c0c6b in QDeclarativeQtScriptExpression::eval (this=0x78324e8, secondaryScope=0x0, isUndefined=0x0) at qml/qdeclarativeexpression.cpp:518
#19 0x00007f25787c0913 in QDeclarativeQtScriptExpression::scriptValue (this=0x78324e8, secondaryScope=0x0, isUndefined=0x0) at qml/qdeclarativeexpression.cpp:470
#20 0x00007f25787c1707 in QDeclarativeExpressionPrivate::scriptValue (this=0x7832460, secondaryScope=0x0, isUndefined=0x0) at qml/qdeclarativeexpression.cpp:653
#21 0x00007f25787c183c in QDeclarativeExpressionPrivate::value (this=0x7832460, secondaryScope=0x0, isUndefined=0x0) at qml/qdeclarativeexpression.cpp:667
#22 0x00007f2578807c8f in QDeclarativeBoundSignal::qt_metacall (this=0x782f020, c=QMetaObject::InvokeMetaMethod, id=4, a=0x7fffc64b5370) at qml/qdeclarativeboundsignal.cpp:186
#23 0x00007f2576281c64 in QMetaObject::metacall (object=0x782f020, cl=QMetaObject::InvokeMetaMethod, idx=4, argv=0x7fffc64b5370) at kernel/qmetaobject.cpp:245
#24 0x00007f2576298064 in QMetaObject::activate (sender=0x7830c20, m=0x7830f58, local_signal_index=1, argv=0x0) at kernel/qobject.cpp:3566
#25 0x00007f25762983b4 in QMetaObject::activate (sender=0x7830c20, signal_index=33, argv=0x0) at kernel/qobject.cpp:3623
#26 0x00007f25787a84b6 in QDeclarativeVMEMetaObject::writeVarProperty (this=0x7830f50, id=1, value=...) at qml/qdeclarativevmemetaobject.cpp:740
#27 0x00007f25787a69d6 in QDeclarativeVMEMetaObject::metaCall (this=0x7830f50, c=QMetaObject::WriteProperty, _id=42, a=0x7fffc64b5af0) at qml/qdeclarativevmemetaobject.cpp:471
#28 0x00007f2576281c44 in QMetaObject::metacall (object=0x7830c20, cl=QMetaObject::WriteProperty, idx=42, argv=0x7fffc64b5af0) at kernel/qmetaobject.cpp:243
#29 0x00007f25787a77be in QDeclarativeVMEMetaObject::metaCall (this=0x7829800, c=QMetaObject::WriteProperty, _id=47, a=0x7fffc64b5af0) at qml/qdeclarativevmemetaobject.cpp:623
#30 0x00007f2576281c44 in QMetaObject::metacall (object=0x7825150, cl=QMetaObject::WriteProperty, idx=47, argv=0x7fffc64b5af0) at kernel/qmetaobject.cpp:243
#31 0x00007f25787da8a5 in QDeclarativeVME::run (this=0x7fffc64b8e70, stack=..., ctxt=0x77dd8f0, comp=0x77d7ec0, start=0, count=76, bindingSkipList=...) at qml/qdeclarativevme.cpp:384
#32 0x00007f25787d96ce in QDeclarativeVME::run (this=0x7fffc64b8e70, ctxt=0x77dd8f0, comp=0x77d7ec0, start=0, count=76, bindingSkipList=...) at qml/qdeclarativevme.cpp:133
#33 0x00007f25787cf282 in QDeclarativeComponentPrivate::begin (parentContext=0x5bb1820, componentCreationContext=0x5bb1820, component=0x77d7ec0, start=-1, count=-1, state=0x5a4a388, errors=0x0, bindings=...) at qml/qdeclarativecomponent.cpp:871
#34 0x00007f25787cf0a9 in QDeclarativeComponentPrivate::beginCreate (this=0x5a4a2d0, context=0x5bb1820, bindings=...) at qml/qdeclarativecomponent.cpp:836
#35 0x00007f25787ceeb6 in QDeclarativeComponent::beginCreate (this=0x77cc810, context=0x56ebb60) at qml/qdeclarativecomponent.cpp:798
#36 0x00007f25787ce775 in QDeclarativeComponentPrivate::createObject (this=0x5a4a2d0, publicParent=0x5ba3810, valuemap=...) at qml/qdeclarativecomponent.cpp:693
#37 0x00007f25787ce536 in QDeclarativeComponent::createObject (this=0x77cc810, parent=0x5ba3810) at qml/qdeclarativecomponent.cpp:667
#38 0x00007f25789058c4 in QDeclarativeComponent::qt_static_metacall (_o=0x77cc810, _c=QMetaObject::InvokeMetaMethod, _id=3, _a=0x7fffc64b92d0) at .moc/debug-shared/moc_qdeclarativecomponent.cpp:95
#39 0x00007f2578905aa0 in QDeclarativeComponent::qt_metacall (this=0x77cc810, _c=QMetaObject::InvokeMetaMethod, _id=3, _a=0x7fffc64b92d0) at .moc/debug-shared/moc_qdeclarativecomponent.cpp:137
#40 0x00007f2576281c64 in QMetaObject::metacall (object=0x77cc810, cl=QMetaObject::InvokeMetaMethod, idx=7, argv=0x7fffc64b92d0) at kernel/qmetaobject.cpp:245
#41 0x00007f257887b5cd in QDeclarativeObjectMethodScriptClass::callMethod (this=0x5b7c060, object=0x77cc810, index=7, returnType=320, argCount=1, argTypes=0x7fffc64b9510, ctxt=0x7f25401130b0) at qml/qdeclarativeobjectscriptclass.cpp:970
#42 0x00007f257887b2b7 in QDeclarativeObjectMethodScriptClass::callPrecise (this=0x5b7c060, object=0x77cc810, data=..., ctxt=0x7f25401130b0) at qml/qdeclarativeobjectscriptclass.cpp:944
#43 0x00007f257887bc06 in QDeclarativeObjectMethodScriptClass::callOverloaded (this=0x5b7c060, method=0x77d8df0, ctxt=0x7f25401130b0) at qml/qdeclarativeobjectscriptclass.cpp:1064
#44 0x00007f257887ae44 in QDeclarativeObjectMethodScriptClass::call (this=0x5b7c060, o=0x77d8df0, ctxt=0x7f25401130b0) at qml/qdeclarativeobjectscriptclass.cpp:919
#45 0x00007f2572b12485 in QScript::DeclarativeObjectDelegate::call (exec=0x7f25401130b0, callee=0x7f25400e8180, thisValue=..., args=...) at bridge/qscriptdeclarativeobject.cpp:154
#46 0x00007f2572a16d53 in QTJSC::NativeFuncWrapper::operator() (this=0x7fffc64b99e0, exec=0x7f25401130b0, jsobj=0x7f25400e8180, thisValue=..., argList=...) at ../3rdparty/javascriptcore/JavaScriptCore/runtime/CallData.cpp:46
#47 0x00007f25729ec9b1 in QTJSC::cti_op_call_NotJSFunction (args=0x7fffc64b9a90) at ../3rdparty/javascriptcore/JavaScriptCore/jit/JITStubs.cpp:1780
#48 0x00007f25729e906d in QTJSC::JITThunks::tryCacheGetByID (callFrame=0x7f25400e7f80, codeBlock=0x7fffc64b9a90, returnAddress=..., baseValue=..., propertyName=..., slot=..., stubInfo=0x7f25400e8180) at ../3rdparty/javascriptcore/JavaScriptCore/jit/JITStubs.cpp:926
#49 0x00007fffc64b9ac0 in ?? ()
#50 0x00007f25400e8180 in ?? ()
#51 0x000000000000000d in ?? ()
#52 0x00007fff00000002 in ?? ()
#53 0x0000000000000000 in ?? ()

Possible duplicates by query: bug 295913, bug 294650.

Reported using DrKonqi