Application: plasma-desktop (0.4)
KDE Platform Version: 4.9.2
Qt Version: 4.8.2
Operating System: Linux 3.2.0-32-generic x86_64
Distribution: Ubuntu 12.04.1 LTS

-- Information about the crash:
I was launching Kubuntu 12.04 when my KDE Plasma Desktop crashed. It restarted. The KDE Wallet had reopened. The system notified me of a crash and invited me to submit a report.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7faa55173780 (LWP 2156))]

Thread 8 (Thread 0x7faa3650c700 (LWP 2157)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007faa4e43b222 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007faa4e43b259 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007faa48cbbe9a in start_thread (arg=0x7faa3650c700) at pthread_create.c:308
#4  0x00007faa54a5ccbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7faa2e057700 (LWP 2158)):
#0  0x00007faa54a6a8c0 in pthread_mutex_lock (mutex=0x7faa28000a60) at forward.c:182
#1  0x00007faa485fa5a1 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007faa485be851 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007faa485bef5b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007faa485bf164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007faa51688906 in QEventDispatcherGlib::processEvents (this=0x7faa280008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007faa51657e42 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007faa51658097 in QEventLoop::exec (this=0x7faa2e056dd0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007faa51557057 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007faa51637b4f in QInotifyFileSystemWatcherEngine::run (this=0x1dd8000) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007faa5155a07b in QThreadPrivate::start (arg=0x1dd8000) at thread/qthread_unix.cpp:307
#11 0x00007faa48cbbe9a in start_thread (arg=0x7faa2e057700) at pthread_create.c:308
#12 0x00007faa54a5ccbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7faa2cbaa700 (LWP 2159)):
#0  0x00007faa54a51303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007faa485bf036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007faa485bf164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007faa51688906 in QEventDispatcherGlib::processEvents (this=0x7faa200008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007faa51657e42 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007faa51658097 in QEventLoop::exec (this=0x7faa2cba9dd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007faa51557057 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007faa51637b4f in QInotifyFileSystemWatcherEngine::run (this=0x1ee3740) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007faa5155a07b in QThreadPrivate::start (arg=0x1ee3740) at thread/qthread_unix.cpp:307
#9  0x00007faa48cbbe9a in start_thread (arg=0x7faa2cbaa700) at pthread_create.c:308
#10 0x00007faa54a5ccbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7faa25fe7700 (LWP 2164)):
#0  0x00007faa54a51303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007faa485bf036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007faa485bf49a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007faa26ad1406 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007faa485e09e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007faa48cbbe9a in start_thread (arg=0x7faa25fe7700) at pthread_create.c:308
#6  0x00007faa54a5ccbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7faa0f227700 (LWP 2362)):
#0  __pthread_mutex_unlock (mutex=0x1) at pthread_mutex_unlock.c:289
#1  0x00007faa485fa5d1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007faa485beb3d in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007faa485befd6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007faa485bf164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007faa51688906 in QEventDispatcherGlib::processEvents (this=0x7faa040008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007faa51657e42 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007faa51658097 in QEventLoop::exec (this=0x7faa0f226e00, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007faa51557057 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007faa5155a07b in QThreadPrivate::start (arg=0x48aac10) at thread/qthread_unix.cpp:307
#10 0x00007faa48cbbe9a in start_thread (arg=0x7faa0f227700) at pthread_create.c:308
#11 0x00007faa54a5ccbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7faa0ea26700 (LWP 2363)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007faa4fb22dec in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007faa4fb22f19 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007faa48cbbe9a in start_thread (arg=0x7faa0ea26700) at pthread_create.c:308
#4  0x00007faa54a5ccbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7faa0e225700 (LWP 2364)):
#0  0x00007faa485be846 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007faa485bef5b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007faa485bf164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007faa51688906 in QEventDispatcherGlib::processEvents (this=0x7fa9fc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007faa51657e42 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007faa51658097 in QEventLoop::exec (this=0x7faa0e224e00, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007faa51557057 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007faa5155a07b in QThreadPrivate::start (arg=0x48dc5f0) at thread/qthread_unix.cpp:307
#8  0x00007faa48cbbe9a in start_thread (arg=0x7faa0e225700) at pthread_create.c:308
#9  0x00007faa54a5ccbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7faa55173780 (LWP 2156)):
[KCrash Handler]
#6  QNetworkAccessManager::setCookieJar (this=<optimized out>, cookieJar=0x11a5030) at access/qnetworkaccessmanager.cpp:567
#7  0x00007faa35080b8d in KOAuth::KOAuthWebHelper::authorizeApp (this=0x4449c90, serviceBaseUrl=..., authorizeUrl=..., pageUrl=...) at ../../../dataengines/microblog/koauthwebhelper.cpp:132
#8  0x00007faa35081df4 in qt_static_metacall (_a=<optimized out>, _id=<optimized out>, _o=<optimized out>, _c=<optimized out>) at ./koauthwebhelper.moc:69
#9  KOAuth::KOAuthWebHelper::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at ./koauthwebhelper.moc:58
#10 0x00007faa5166d761 in QMetaObject::activate (sender=0x4475b70, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff16fdce00) at kernel/qobject.cpp:3547
#11 0x00007faa35077c5c in KOAuth::KOAuth::authorizeApp (this=<optimized out>, _t1=..., _t2=..., _t3=...) at ./koauth.moc:126
#12 0x00007faa3507b3d1 in KOAuth::KOAuth::requestTokenFromService (this=0x4475b70) at ../../../dataengines/microblog/koauth.cpp:217
#13 0x00007faa3507b7ec in KOAuth::KOAuth::authorize (this=0x4475b70, serviceBaseUrl=..., user=..., password=...) at ../../../dataengines/microblog/koauth.cpp:187
#14 0x00007faa3507b8b4 in qt_static_metacall (_a=<optimized out>, _id=<optimized out>, _o=<optimized out>, _c=<optimized out>) at ./koauth.moc:76
#15 KOAuth::KOAuth::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at ./koauth.moc:64
#16 0x00007faa5166d761 in QMetaObject::activate (sender=0x4807f20, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff16fdd220) at kernel/qobject.cpp:3547
#17 0x00007faa35064b3c in TimelineSource::authorize (this=<optimized out>, _t1=..., _t2=..., _t3=...) at ./timelinesource.moc:134
#18 0x00007faa35064b89 in TimelineSource::startAuthorization (this=0x4807f20, user=..., password=...) at ../../../dataengines/microblog/timelinesource.cpp:168
#19 0x00007faa3506f417 in TimelineService::createJob (this=0x39b8780, operation=..., parameters=...) at ../../../dataengines/microblog/timelineservice.cpp:67
#20 0x00007faa54603d62 in Plasma::Service::startOperationCall (this=0x39b8780, description=..., parent=0x0) at ../../plasma/service.cpp:238
#21 0x00007faa393f3c26 in downloadHistory (this=0x13ab2e0) at ../../../applets/microblog/microblog.cpp:918
#22 MicroBlog::downloadHistory (this=0x13ab2e0) at ../../../applets/microblog/microblog.cpp:899
#23 0x00007faa393f4132 in MicroBlog::readWallet (this=0x13ab2e0, success=<optimized out>) at ../../../applets/microblog/microblog.cpp:495
#24 0x00007faa393f776c in qt_static_metacall (_a=<optimized out>, _id=<optimized out>, _o=<optimized out>, _c=<optimized out>) at ./microblog.moc:90
#25 MicroBlog::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at ./microblog.moc:81
#26 0x00007faa5166d761 in QMetaObject::activate (sender=0x355ee90, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff16fddaa0) at kernel/qobject.cpp:3547
#27 0x00007faa52454c52 in KWallet::Wallet::walletOpened (this=<optimized out>, _t1=true) at ./kwallet.moc:167
#28 0x00007faa5166d761 in QMetaObject::activate (sender=0x2473810, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff16fddbf0) at kernel/qobject.cpp:3547
#29 0x00007faa5248673f in OrgKdeKWalletInterface::walletAsyncOpened (this=<optimized out>, _t1=0, _t2=1709848286) at kwallet_interface.moc:324
#30 0x00007faa52488ea6 in OrgKdeKWalletInterface::qt_static_metacall (_o=0x2473810, _id=<optimized out>, _a=0x7fff16fde350, _c=<optimized out>) at kwallet_interface.moc:162
#31 0x00007faa5248914b in OrgKdeKWalletInterface::qt_metacall (this=0x2473810, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff16fde350) at kwallet_interface.moc:287
#32 0x00007faa519d437b in QDBusConnectionPrivate::deliverCall (this=0x10da2c0, object=0x2473810, msg=..., metaTypes=..., slotIdx=9) at qdbusintegrator.cpp:947
#33 0x00007faa51672926 in QObject::event (this=0x2473810, e=<optimized out>) at kernel/qobject.cpp:1195
#34 0x00007faa509da7b4 in notify_helper (e=0x387bb70, receiver=0x2473810, this=0x10ed630) at kernel/qapplication.cpp:4556
#35 QApplicationPrivate::notify_helper (this=0x10ed630, receiver=0x2473810, e=0x387bb70) at kernel/qapplication.cpp:4528
#36 0x00007faa509df583 in QApplication::notify (this=0x10ccfd0, receiver=0x2473810, e=0x387bb70) at kernel/qapplication.cpp:4417
#37 0x00007faa5233c756 in KApplication::notify (this=0x10ccfd0, receiver=0x2473810, event=0x387bb70) at ../../kdeui/kernel/kapplication.cpp:311
#38 0x00007faa5165930c in QCoreApplication::notifyInternal (this=0x10ccfd0, receiver=0x2473810, event=0x387bb70) at kernel/qcoreapplication.cpp:915
#39 0x00007faa5165d0ea in sendEvent (event=0x387bb70, receiver=0x2473810) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#40 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x106e1f0) at kernel/qcoreapplication.cpp:1539
#41 0x00007faa51688473 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#42 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#43 0x00007faa485bed53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#44 0x00007faa485bf0a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#45 0x00007faa485bf164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007faa5168889f in QEventDispatcherGlib::processEvents (this=0x106fad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#47 0x00007faa50a82cde in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#48 0x00007faa51657e42 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#49 0x00007faa51658097 in QEventLoop::exec (this=0x7fff16fdece0, flags=...) at kernel/qeventloop.cpp:204
#50 0x00007faa5165d3e7 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#51 0x00007faa54d63be3 in kdemain (argc=1, argv=0x7fff16fdf0c8) at ../../../../plasma/desktop/shell/main.cpp:120
#52 0x00007faa5498a76d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff16fdf0c8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff16fdf0b8) at libc-start.c:226
#53 0x0000000000400671 in _start ()

Possible duplicates by query: bug 306234.

Reported using DrKonqi