Bug 258629

Application: nepomukservicestub (0.2)
KDE Platform Version: 4.5.80 (4.6 Beta1)
Qt Version: 4.7.1
Operating System: Linux 2.6.37-7-generic x86_64
Distribution: Ubuntu natty (development branch)

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

using faces in dolphin and stopping finding, nepomuk crashed

The crash can be reproduced some of the time.

-- Backtrace:
Application: Programma stub per servizio di Nepomuk (nepomukservicestub), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f87170b2760 (LWP 2185))]

Thread 5 (Thread 0x7f8703bf2700 (LWP 18387)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:212
#1  0x00007f87168b705e in wait (this=<value optimized out>, mutex=0x21f1f40, time=30000) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x21f1f40, time=30000) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f87168ad108 in QThreadPoolThread::run (this=0x2200a40) at concurrent/qthreadpool.cpp:140
#4  0x00007f87168b6a2e in QThreadPrivate::start (arg=0x2200a40) at thread/qthread_unix.cpp:285
#5  0x00007f8714085971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#6  0x00007f871458692d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f8704bf4700 (LWP 18388)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:212
#1  0x00007f87168b705e in wait (this=<value optimized out>, mutex=0x21f1f40, time=30000) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x21f1f40, time=30000) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f87168ad108 in QThreadPoolThread::run (this=0x229a3a0) at concurrent/qthreadpool.cpp:140
#4  0x00007f87168b6a2e in QThreadPrivate::start (arg=0x229a3a0) at thread/qthread_unix.cpp:285
#5  0x00007f8714085971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#6  0x00007f871458692d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f87043f3700 (LWP 18391)):
#0  __lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:97
#1  0x00007f871451ee63 in _L_lock_9561 () from /lib/libc.so.6
#2  0x00007f871451c21b in malloc_check (sz=125, caller=<value optimized out>) at hooks.c:263
#3  0x00007f871450d3db in __libc_message (do_abort=<value optimized out>, fmt=<value optimized out>) at ../sysdeps/unix/sysv/linux/libc_fatal.c:138
#4  0x00007f87145174b6 in malloc_printerr (action=3, str=0x7f87145eb278 "malloc(): smallbin double linked list corrupted", ptr=<value optimized out>) at malloc.c:6283
#5  0x00007f871451b781 in _int_malloc (av=0x7f871481ee40, bytes=137) at malloc.c:4308
#6  0x00007f871451c238 in malloc_check (sz=136, caller=<value optimized out>) at hooks.c:264
#7  0x00007f87148dcded in operator new(unsigned long) () from /usr/lib/libstdc++.so.6
#8  0x00007f87148dcf09 in operator new[](unsigned long) () from /usr/lib/libstdc++.so.6
#9  0x00007f87168d2bdf in QHashData::rehash (this=0x21b0e00, hint=<value optimized out>) at tools/qhash.cpp:364
#10 0x00007f87111f878c in Soprano::Error::ErrorCache::setError(Soprano::Error::Error const&) const () from /usr/lib/libsoprano.so.4
#11 0x00007f87111f89db in Soprano::Error::ErrorCache::setError(QString const&, int) const () from /usr/lib/libsoprano.so.4
#12 0x00007f8710f691c2 in ?? () from /usr/lib/libsopranoclient.so.1
#13 0x00007f8710f6d366 in ?? () from /usr/lib/libsopranoclient.so.1
#14 0x00007f8710f6cc31 in ?? () from /usr/lib/libsopranoclient.so.1
#15 0x00007f87111e799f in Soprano::QueryResultIterator::bindingNames() const () from /usr/lib/libsoprano.so.4
#16 0x00007f8705c8dc0a in Nepomuk::Query::SearchRunnable::extractResult (this=0x24ba890, it=...) at ../../../../nepomuk/services/queryservice/searchrunnable.cpp:131
#17 0x00007f8705c8e22d in Nepomuk::Query::SearchRunnable::run (this=0x24ba890) at ../../../../nepomuk/services/queryservice/searchrunnable.cpp:95
#18 0x00007f87168ad078 in QThreadPoolThread::run (this=0x22047d0) at concurrent/qthreadpool.cpp:106
#19 0x00007f87168b6a2e in QThreadPrivate::start (arg=0x22047d0) at thread/qthread_unix.cpp:285
#20 0x00007f8714085971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#21 0x00007f871458692d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#22 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f87053f5700 (LWP 18392)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:212
#1  0x00007f87168b705e in wait (this=<value optimized out>, mutex=0x21f1f40, time=30000) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x21f1f40, time=30000) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f87168ad108 in QThreadPoolThread::run (this=0x220fe70) at concurrent/qthreadpool.cpp:140
#4  0x00007f87168b6a2e in QThreadPrivate::start (arg=0x220fe70) at thread/qthread_unix.cpp:285
#5  0x00007f8714085971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#6  0x00007f871458692d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f87170b2760 (LWP 2185)):
[KCrash Handler]
#6  0x00007f87168d2995 in QHashData::detach_helper2 (this=0x27f5330, node_duplicate=0x7f8715824c30 <QHash<KUrl, QHashDummyValue>::duplicateNode(QHashData::Node*, void*)>, node_delete=0x7f8715824bd0 <QHash<KUrl, QHashDummyValue>::deleteNode2(QHashData::Node*)>, nodeSize=<value optimized out>, nodeAlign=8) at tools/qhash.cpp:229
#7  0x00007f8715825b52 in QHash<KUrl, QHashDummyValue>::detach_helper (this=0x7fffee7c59a0) at /usr/include/qt4/QtCore/qhash.h:582
#8  0x00007f87158213bc in detach (this=0x27e7cf0, isDelete=true) at /usr/include/qt4/QtCore/qhash.h:299
#9  QHash (this=0x27e7cf0, isDelete=true) at /usr/include/qt4/QtCore/qhash.h:283
#10 QSet (this=0x27e7cf0, isDelete=true) at /usr/include/qt4/QtCore/qset.h:60
#11 QForeachContainer (this=0x27e7cf0, isDelete=true) at /usr/include/qt4/QtCore/qglobal.h:2250
#12 Nepomuk::ResourceData::resetAll (this=0x27e7cf0, isDelete=true) at ../../nepomuk/core/resourcedata.cpp:154
#13 0x00007f871582163e in Nepomuk::ResourceData::~ResourceData (this=0x27e7cf0, __in_chrg=<value optimized out>) at ../../nepomuk/core/resourcedata.cpp:90
#14 0x00007f8715837563 in Nepomuk::Resource::~Resource (this=0x27d7758, __in_chrg=<value optimized out>) at ../../nepomuk/core/resource.cpp:127
#15 0x00007f870cb405e3 in ~Private (this=<value optimized out>, __in_chrg=<value optimized out>) at ../../../nepomuk/query/result.cpp:33
#16 ~QSharedDataPointer (this=<value optimized out>, __in_chrg=<value optimized out>) at /usr/include/qt4/QtCore/qshareddata.h:90
#17 Nepomuk::Query::Result::~Result (this=<value optimized out>, __in_chrg=<value optimized out>) at ../../../nepomuk/query/result.cpp:63
#18 0x00007f8705c8c50d in ~QHashNode (node=0x27fde20) at /usr/include/qt4/QtCore/qhash.h:217
#19 QHash<QUrl, Nepomuk::Query::Result>::deleteNode2 (node=0x27fde20) at /usr/include/qt4/QtCore/qhash.h:519
#20 0x00007f87168d283d in QHashData::free_helper (this=0x27ff7c0, node_delete=0x7f8705c8c500 <QHash<QUrl, Nepomuk::Query::Result>::deleteNode2(QHashData::Node*)>) at tools/qhash.cpp:271
#21 0x00007f8705c8c467 in freeData (this=0x27c3670, __in_chrg=<value optimized out>) at /usr/include/qt4/QtCore/qhash.h:568
#22 ~QHash (this=0x27c3670, __in_chrg=<value optimized out>) at /usr/include/qt4/QtCore/qhash.h:284
#23 Nepomuk::Query::Folder::~Folder (this=0x27c3670, __in_chrg=<value optimized out>) at ../../../../nepomuk/services/queryservice/folder.cpp:74
#24 0x00007f8705c8c4e9 in Nepomuk::Query::Folder::~Folder (this=0x27c3670, __in_chrg=<value optimized out>) at ../../../../nepomuk/services/queryservice/folder.cpp:82
#25 0x00007f87169b1f58 in QObject::event (this=0x27c3670, e=<value optimized out>) at kernel/qobject.cpp:1202
#26 0x00007f8714ce3b04 in QApplicationPrivate::notify_helper (this=0x209dce0, receiver=0x27c3670, e=0x27ae290) at kernel/qapplication.cpp:4445
#27 0x00007f8714ce843a in QApplication::notify (this=<value optimized out>, receiver=0x27c3670, e=0x27ae290) at kernel/qapplication.cpp:4324
#28 0x00007f8715ce0906 in KApplication::notify (this=0x7fffee7c6610, receiver=0x27c3670, event=0x27ae290) at ../../kdeui/kernel/kapplication.cpp:311
#29 0x00007f871699df7c in QCoreApplication::notifyInternal (this=0x7fffee7c6610, receiver=0x27c3670, event=0x27ae290) at kernel/qcoreapplication.cpp:732
#30 0x00007f87169a1715 in sendEvent (receiver=0x0, event_type=0, data=0x2086a30) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#31 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x2086a30) at kernel/qcoreapplication.cpp:1373
#32 0x00007f87169c8d33 in sendPostedEvents (s=0x20a09a0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#33 postEventSourceDispatch (s=0x20a09a0) at kernel/qeventdispatcher_glib.cpp:277
#34 0x00007f87135acadd in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#35 0x00007f87135ad2c8 in ?? () from /lib/libglib-2.0.so.0
#36 0x00007f87135ad559 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#37 0x00007f87169c8ecf in QEventDispatcherGlib::processEvents (this=0x20860e0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:415
#38 0x00007f8714d899ae in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#39 0x00007f871699d362 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#40 0x00007f871699d59c in QEventLoop::exec (this=0x7fffee7c6420, flags=...) at kernel/qeventloop.cpp:201
#41 0x00007f87169a19bb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#42 0x0000000000403c3f in main (argc=2, argv=<value optimized out>) at ../../../nepomuk/servicestub/main.cpp:165

Reported using DrKonqi