Application: kdevelop (4.0.0 (using KDevPlatform 1.0.0))
KDE Platform Version: 4.4.2 (KDE 4.4.2) (Compiled from sources)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-21-generic x86_64
Distribution: Ubuntu 10.04 LTS

-- Information about the crash:
I switched to a different session. The old KDevelop window disappeared, the new one launched, and soon afterwards, the old one crashed. The new KDevelop instance was working fine.

 -- Backtrace:
Application: KDevelop (kdevelop.bin), signal: Segmentation fault
pthread_cond_wait@@GLIBC_2.3.2 ()
    at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
	in ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S
[Current thread is 1 (Thread 0x7fe760a4c760 (LWP 27666))]

Thread 4 (Thread 0x7fe749316710 (LWP 27668)):
[KCrash Handler]
#5  0x00007fe759f92138 in KDevelop::DUContext::isAnonymous (this=0x5a68ec0) at /home/dima/src/kdevplatform-1.0.0/language/duchain/ducontext.cpp:559
#6  0x00007fe759fbde20 in KDevelop::Declaration::clearOwnIndex (this=0x5a75730) at /home/dima/src/kdevplatform-1.0.0/language/duchain/declaration.cpp:423
#7  0x00007fe759fc1e98 in ~Declaration (this=0x5a75730, __in_chrg=<value optimized out>) at /home/dima/src/kdevplatform-1.0.0/language/duchain/declaration.cpp:181
#8  0x00007fe737d3ac9f in ~SpecialTemplateDeclaration (this=0x5a75730, __in_chrg=<value optimized out>) at /home/dima/src/kdevelop-4.0.0/languages/cpp/cppduchain/templatedeclaration.h:239
#9  0x00007fe759f9858b in KDevelop::DUContext::deleteLocalDeclarations (this=0x5a67490) at /home/dima/src/kdevplatform-1.0.0/language/duchain/ducontext.cpp:1159
#10 0x00007fe759f9e7b7 in ~DUContext (this=0x5a67490, __in_chrg=<value optimized out>) at /home/dima/src/kdevplatform-1.0.0/language/duchain/ducontext.cpp:619
#11 0x00007fe737d1438c in ~CppDUContext (this=0x5a67490, __in_chrg=<value optimized out>) at /home/dima/src/kdevelop-4.0.0/languages/cpp/cppduchain/cppducontext.h:702
#12 0x00007fe759f9d947 in KDevelop::DUContext::deleteChildContextsRecursively (this=0x5a6c080) at /home/dima/src/kdevplatform-1.0.0/language/duchain/ducontext.cpp:1176
#13 0x00007fe759f9e78f in ~DUContext (this=0x5a6c080, __in_chrg=<value optimized out>) at /home/dima/src/kdevplatform-1.0.0/language/duchain/ducontext.cpp:612
#14 0x00007fe737d1438c in ~CppDUContext (this=0x5a6c080, __in_chrg=<value optimized out>) at /home/dima/src/kdevelop-4.0.0/languages/cpp/cppduchain/cppducontext.h:702
#15 0x00007fe759f9d947 in KDevelop::DUContext::deleteChildContextsRecursively (this=0x5a67330) at /home/dima/src/kdevplatform-1.0.0/language/duchain/ducontext.cpp:1176
#16 0x00007fe759f9e78f in ~DUContext (this=0x5a67330, __in_chrg=<value optimized out>) at /home/dima/src/kdevplatform-1.0.0/language/duchain/ducontext.cpp:612
#17 0x00007fe737d1438c in ~CppDUContext (this=0x5a67330, __in_chrg=<value optimized out>) at /home/dima/src/kdevelop-4.0.0/languages/cpp/cppduchain/cppducontext.h:702
#18 0x00007fe759f9d947 in KDevelop::DUContext::deleteChildContextsRecursively (this=0x5a677e0) at /home/dima/src/kdevplatform-1.0.0/language/duchain/ducontext.cpp:1176
#19 0x00007fe759fac125 in ~TopDUContext (this=0x5a677e0, __in_chrg=<value optimized out>) at /home/dima/src/kdevplatform-1.0.0/language/duchain/topducontext.cpp:785
#20 0x00007fe737d131b2 in ~CppDUContext (this=0x5a677e0, __in_chrg=<value optimized out>) at /home/dima/src/kdevelop-4.0.0/languages/cpp/cppduchain/cppducontext.h:702
#21 0x00007fe759faa753 in KDevelop::TopDUContext::deleteSelf (this=0x589fc90) at /home/dima/src/kdevplatform-1.0.0/language/duchain/topducontext.cpp:798
#22 0x00007fe759f8e6e4 in KDevelop::DUChainPrivate::removeDocumentChainFromMemory (this=0x1c33c50, context=0x5a677e0) at /home/dima/src/kdevplatform-1.0.0/language/duchain/duchain.cpp:414
#23 0x00007fe759f8f2fc in KDevelop::DUChainPrivate::doMoreCleanup (this=0x1c33c50, retries=<value optimized out>, needLockRepository=<value optimized out>)
    at /home/dima/src/kdevplatform-1.0.0/language/duchain/duchain.cpp:811
#24 0x00007fe759f90114 in KDevelop::DUChainPrivate::CleanupThread::run (this=0x1c2e5b0) at /home/dima/src/kdevplatform-1.0.0/language/duchain/duchain.cpp:294
#25 0x00007fe75d358775 in QThreadPrivate::start (arg=0x1c2e5b0) at thread/qthread_unix.cpp:248
#26 0x00007fe75d0c89ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#27 0x00007fe75b7906cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#28 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fe73a833710 (LWP 27676)):
#0  0x00007fe756c3b49c in g_main_context_poll (context=0x29101b0, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>)
    at /build/buildd/glib2.0-2.24.1/glib/gmain.c:2903
#1  g_main_context_iterate (context=0x29101b0, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>) at /build/buildd/glib2.0-2.24.1/glib/gmain.c:2586
#2  0x00007fe756c3b8fc in IA__g_main_context_iteration (context=0x29101b0, may_block=1) at /build/buildd/glib2.0-2.24.1/glib/gmain.c:2654
#3  0x00007fe75d476566 in QEventDispatcherGlib::processEvents (this=0x290fc60, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:414
#4  0x00007fe75d44b992 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#5  0x00007fe75d44bd6c in QEventLoop::exec (this=0x7fe73a832db0, flags=) at kernel/qeventloop.cpp:201
#6  0x00007fe75d355d59 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:487
#7  0x00007fe75d42c178 in QInotifyFileSystemWatcherEngine::run (this=0x290f090) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fe75d358775 in QThreadPrivate::start (arg=0x290f090) at thread/qthread_unix.cpp:248
#9  0x00007fe75d0c89ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#10 0x00007fe75b7906cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fe73116a710 (LWP 27699)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fe75ab522a6 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7fe75ae30220) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2304
#2  0x00007fe75ab522e9 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0x7fe75ae3e2ec) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1438
#3  0x00007fe75d0c89ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4  0x00007fe75b7906cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fe760a4c760 (LWP 27666)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fe75d357ea3 in QMutexPrivate::wait (this=0x1975840, timeout=-1) at thread/qmutex_unix.cpp:84
#2  0x00007fe75d3539e5 in QMutex::lock (this=0x7fe75a2f8870) at thread/qmutex.cpp:167
#3  0x00007fe759f78847 in QMutexLocker::relock (this=0x19a4e00) at /usr/include/qt4/QtCore/qmutex.h:120
#4  QMutexLocker (this=0x19a4e00) at /usr/include/qt4/QtCore/qmutex.h:102
#5  KDevelop::DUChain::aboutToQuit (this=0x19a4e00) at /home/dima/src/kdevplatform-1.0.0/language/duchain/duchain.cpp:1605
#6  0x00007fe759f78fa6 in KDevelop::DUChain::qt_metacall (this=0x19a4e00, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff111c1240)
    at /home/dima/src/kdevplatform-1.0.0/build/language/duchain.moc:170
#7  0x00007fe75d45fe3f in QMetaObject::activate (sender=0x7fff111c1460, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0xffffffffffffffff) at kernel/qobject.cpp:3293
#8  0x00007fe75d44fad3 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:986
#9  0x00000000004089bf in main (argc=<value optimized out>, argv=<value optimized out>) at /home/dima/src/kdevelop-4.0.0/app/main_internal.cpp:232

Reported using DrKonqi