Application: kdevelop (4.2.3)
KDE Platform Version: 4.7.00 (4.7.0) (Compiled from sources)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-11-generic i686
Distribution: Ubuntu 11.04

-- Information about the crash:
- What I was doing when the application crashed:

I close the kdevelop window to quit the application,then kdevelop crashed!

The crash can be reproduced every time.

-- Backtrace:
Application: KDevelop (kdevelop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb63e5710 (LWP 12815))]

Thread 5 (Thread 0xb3686b70 (LWP 12816)):
#0  0x001c8416 in __kernel_vsyscall ()
#1  0x00d34834 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_timedwait.S:236
#2  0x04733454 in __pthread_cond_timedwait (cond=0x89431e0, mutex=0x89431c8, abstime=0xb36862c0) at forward.c:152
#3  0x06f023e5 in wait (this=0x8937404, mutex=0x8937408, time=1000) at thread/qwaitcondition_unix.cpp:86
#4  QWaitCondition::wait (this=0x8937404, mutex=0x8937408, time=1000) at thread/qwaitcondition_unix.cpp:160
#5  0x0592a82d in KDevelop::DUChainPrivate::CleanupThread::run (this=0x89373f8) at /home/uli/bin/kde4/kdevleop/kdevplatform-1.2.3/language/duchain/duchain.cpp:286
#6  0x06f01da2 in QThreadPrivate::start (arg=0x89373f8) at thread/qthread_unix.cpp:320
#7  0x00d2fe99 in start_thread (arg=0xb3686b70) at pthread_create.c:304
#8  0x0472573e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 4 (Thread 0xacfbeb70 (LWP 12832)):
#0  0x001c8416 in __kernel_vsyscall ()
#1  0x00d3448c in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:169
#2  0x047333fd in __pthread_cond_wait (cond=0x7d222b0, mutex=0x7d22298) at forward.c:139
#3  0x07c09817 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7d1d1c0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#4  0x07c09851 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0x7d1d1c0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#5  0x00d2fe99 in start_thread (arg=0xacfbeb70) at pthread_create.c:304
#6  0x0472573e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 3 (Thread 0xac03eb70 (LWP 12890)):
#0  0x001c8416 in __kernel_vsyscall ()
#1  0x04716f76 in __poll (fds=0x9744d48, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#2  0x037495eb in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x03738f4f in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x037392c4 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x07023577 in QEventDispatcherGlib::processEvents (this=0x9743690, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x06ff5289 in QEventLoop::processEvents (this=0xac03e290, flags=...) at kernel/qeventloop.cpp:149
#7  0x06ff5522 in QEventLoop::exec (this=0xac03e290, flags=...) at kernel/qeventloop.cpp:201
#8  0x06eff2a0 in QThread::exec (this=0x96fe058) at thread/qthread.cpp:492
#9  0x06fd6fdb in QInotifyFileSystemWatcherEngine::run (this=0x96fe058) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x06f01da2 in QThreadPrivate::start (arg=0x96fe058) at thread/qthread_unix.cpp:320
#11 0x00d2fe99 in start_thread (arg=0xac03eb70) at pthread_create.c:304
#12 0x0472573e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 2 (Thread 0xa26ffb70 (LWP 12913)):
#0  0x001c8416 in __kernel_vsyscall ()
#1  0x00d3448c in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:169
#2  0x047333fd in __pthread_cond_wait (cond=0xb77497f0, mutex=0xb77497d8) at forward.c:139
#3  0xb7193b57 in ?? () from /usr/lib/libQtWebKit.so.4
#4  0x00d2fe99 in start_thread (arg=0xa26ffb70) at pthread_create.c:304
#5  0x0472573e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb63e5710 (LWP 12815)):
[KCrash Handler]
#7  makeDataPrivate (this=0x96def18, index=1590132) at /home/uli/bin/kde4/kdevleop/kdevplatform-1.2.3/language/duchain/repositories/itemrepository.h:1052
#8  prepareChange (this=0x96def18, index=1590132) at /home/uli/bin/kde4/kdevleop/kdevplatform-1.2.3/language/duchain/repositories/itemrepository.h:998
#9  KDevelop::ItemRepository<KDevelop::QualifiedIdentifierPrivate<false>, KDevelop::QualifiedIdentifierItemRequest, true, true, 0u, 1048576u>::dynamicItemFromIndexSimple (this=0x96def18, index=1590132) at /home/uli/bin/kde4/kdevleop/kdevplatform-1.2.3/language/duchain/repositories/itemrepository.h:1813
#10 0x05971b1a in KDevelop::IndexedQualifiedIdentifier::~IndexedQualifiedIdentifier (this=0xa116bff4, __in_chrg=<value optimized out>) at /home/uli/bin/kde4/kdevleop/kdevplatform-1.2.3/language/duchain/identifier.cpp:1223
#11 0x045bab23 in ~Indirect (this=0x8c0b8a8, data=0xa116bfdc) at /usr/include/kdevplatform/language/duchain/types/../declarationid.h:165
#12 ~DeclarationId (this=0x8c0b8a8, data=0xa116bfdc) at /usr/include/kdevplatform/language/duchain/types/../declarationid.h:54
#13 ~IdentifiedTypeData (this=0x8c0b8a8, data=0xa116bfdc) at /usr/include/kdevplatform/language/duchain/types/identifiedtype.h:40
#14 ~Data (this=0x8c0b8a8, data=0xa116bfdc) at /usr/include/kdevplatform/language/duchain/types/identifiedtype.h:139
#15 ~StructureTypeData (this=0x8c0b8a8, data=0xa116bfdc) at /usr/include/kdevplatform/language/duchain/types/typesystemdata.h:174
#16 ~CppClassTypeData (this=0x8c0b8a8, data=0xa116bfdc) at /home/uli/bin/kde4/kdevleop/kdevelop-4.2.3/languages/cpp/cppduchain/cpptypes.h:66
#17 KDevelop::TypeFactory<CppClassType, CppClassTypeData>::callDestructor (this=0x8c0b8a8, data=0xa116bfdc) at /usr/include/kdevplatform/language/duchain/types/typeregister.h:106
#18 0x059ec2ec in KDevelop::TypeSystem::callDestructor (this=0x5a893f0, data=0xa116bfdc) at /home/uli/bin/kde4/kdevleop/kdevplatform-1.2.3/language/duchain/types/typeregister.cpp:31
#19 0x05a054a5 in destroy (this=0xafaacfb8) at /home/uli/bin/kde4/kdevleop/kdevplatform-1.2.3/language/duchain/repositories/typerepository.cpp:68
#20 deleteItem<KDevelop::ItemRepository<KDevelop::AbstractTypeData, KDevelop::AbstractTypeDataRequest> > (this=0xafaacfb8) at /home/uli/bin/kde4/kdevleop/kdevplatform-1.2.3/language/duchain/repositories/itemrepository.h:804
#21 finalCleanup<KDevelop::ItemRepository<KDevelop::AbstractTypeData, KDevelop::AbstractTypeDataRequest> > (this=0xafaacfb8) at /home/uli/bin/kde4/kdevleop/kdevplatform-1.2.3/language/duchain/repositories/itemrepository.h:917
#22 KDevelop::ItemRepository<KDevelop::AbstractTypeData, KDevelop::AbstractTypeDataRequest, true, true, 0u, 1048576u>::finalCleanup (this=0xafaacfb8) at /home/uli/bin/kde4/kdevleop/kdevplatform-1.2.3/language/duchain/repositories/itemrepository.h:2494
#23 0x05a015af in KDevelop::ItemRepositoryRegistry::finalCleanup (this=0x88c9550) at /home/uli/bin/kde4/kdevleop/kdevplatform-1.2.3/language/duchain/repositories/itemrepository.cpp:381
#24 0x059140e5 in KDevelop::DUChain::finalCleanup (this=0x85abf30) at /home/uli/bin/kde4/kdevleop/kdevplatform-1.2.3/language/duchain/duchain.cpp:1730
#25 0x05916da2 in KDevelop::DUChain::aboutToQuit (this=0x85abf30) at /home/uli/bin/kde4/kdevleop/kdevplatform-1.2.3/language/duchain/duchain.cpp:1589
#26 0x0591707f in KDevelop::DUChain::qt_metacall (this=0x85abf30, _c=QMetaObject::InvokeMetaMethod, _id=7, _a=0xbfaae3bc) at /home/uli/bin/kde4/kdevleop/kdevplatform-1.2.3/build/language/duchain.moc:167
#27 0x06ffc6ba in QMetaObject::metacall (object=0x85abf30, cl=QMetaObject::InvokeMetaMethod, idx=11, argv=0xbfaae3bc) at kernel/qmetaobject.cpp:237
#28 0x0700c4ff in QMetaObject::activate (sender=0xbfaae678, m=0x7131484, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3287
#29 0x07058c97 in QCoreApplication::aboutToQuit (this=0xbfaae678) at .moc/release-shared/moc_qcoreapplication.cpp:131
#30 0x06ff9ef3 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1013
#31 0x024918e7 in QApplication::exec () at kernel/qapplication.cpp:3736
#32 0x08053155 in main (argc=<value optimized out>, argv=) at /home/uli/bin/kde4/kdevleop/kdevelop-4.2.3/app/main.cpp:467

Reported using DrKonqi