Bug 354310

Application: plasmashell (5.4.2)

Qt Version: 5.4.2
Operating System: Linux 4.2.0-16-generic x86_64
Distribution: Ubuntu 15.10

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

I was having difficulties in logging with my gmail account for instant messaging. I thought maybe my password was wrong so I decided to check the Instant Messaging Settings. Click on my account then the "Configure" button. Plasma then crashed.

- Unusual behavior I noticed:

After the 15.10 upgrade was completed, I rebooted the computer. I noticed it took time to load my Panel bar. Usually it would appear as soon as I'm logged to my computer account. This time it took 20 sec. after I was logged in.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f76a2d05800 (LWP 1822))]

Thread 9 (Thread 0x7f7687be2700 (LWP 1825)):
#0  0x00007f769d4ac8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f769a2591ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f769a2592fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f769ddd629b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f769dd7c75a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f769db9a3d4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f76a03c2f85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f769db9f2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f769cc8e6aa in start_thread (arg=0x7f7687be2700) at pthread_create.c:333
#9  0x00007f769d4b7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f767c85a700 (LWP 1829)):
#0  __libc_disable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:102
#1  0x00007f769d4ac8e9 in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0x00007f769a2591ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f769a2592fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f769ddd629b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f769dd7c75a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f769db9a3d4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f76a03c2f85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f769db9f2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f769cc8e6aa in start_thread (arg=0x7f767c85a700) at pthread_create.c:333
#10 0x00007f769d4b7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f767605d700 (LWP 1833)):
#0  0x00007f769d4ac8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f769a2591ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f769a2592fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f769ddd629b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f769dd7c75a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f769db9a3d4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f76a03c2f85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f769db9f2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f769cc8e6aa in start_thread (arg=0x7f767605d700) at pthread_create.c:333
#9  0x00007f769d4b7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f766ffff700 (LWP 1834)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f76a274e114 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f76a274e159 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f769cc8e6aa in start_thread (arg=0x7f766ffff700) at pthread_create.c:333
#4  0x00007f769d4b7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f766dd2e700 (LWP 1835)):
#0  0x00007f769d4ac8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f769a2591ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f769a2592fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f769ddd629b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f769dd7c75a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f769db9a3d4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f76a0d3eef6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f769db9f2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f769cc8e6aa in start_thread (arg=0x7f766dd2e700) at pthread_create.c:333
#9  0x00007f769d4b7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f75d9073700 (LWP 1839)):
#0  0x00007f769d4ac8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f769a2591ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f769a2592fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f769ddd629b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f769dd7c75a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f769db9a3d4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f75db30d8f7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007f769db9f2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f769cc8e6aa in start_thread (arg=0x7f75d9073700) at pthread_create.c:333
#9  0x00007f769d4b7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f75d0400700 (LWP 1894)):
#0  0x00007f769a29d869 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f769a2591d2 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f769a2592fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f769a259339 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f769a27f965 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f769cc8e6aa in start_thread (arg=0x7f75d0400700) at pthread_create.c:333
#6  0x00007f769d4b7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f75cd55e700 (LWP 1895)):
#0  0x00007f769d4ac8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f769a2591ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f769a259572 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f75cde1f4c6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f769a27f965 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f769cc8e6aa in start_thread (arg=0x7f75cd55e700) at pthread_create.c:333
#6  0x00007f769d4b7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f76a2d05800 (LWP 1822)):
[KCrash Handler]
#6  0x00007f75cc7649f8 in KAccountsUiProvider::showNewAccountDialog (this=<optimized out>) at ../../../plugins/kaccounts/kaccounts-ui-provider.cpp:247
#7  0x00007f769ddaf617 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f75cc7649b8 in KAccountsUiProvider::init (this=0x60301a0, type=<optimized out>) at ../../../plugins/kaccounts/kaccounts-ui-provider.cpp:109
#9  0x00007f769ddaf617 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f769ebedfe2 in QAbstractButton::clicked(bool) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007f769e954914 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007f769e955df9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#13 0x00007f769e955f74 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007f769e89f188 in QWidget::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007f769e85cb8c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007f769e862c7a in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007f769dd7ef1b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f769e8616f2 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x00007f769e8b6440 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x00007f769e8b878b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007f769e85cb8c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007f769e862230 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#23 0x00007f769dd7ef1b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007f769e0a13c8 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#25 0x00007f769e0a3005 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#26 0x00007f769e0885b8 in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#27 0x00007f76906d3250 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#28 0x00007f769a258ff7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f769a259250 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007f769a2592fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007f769ddd627f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#32 0x00007f769dd7c75a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#33 0x00007f769dd842cc in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#34 0x00000000004322c3 in main (argc=4, argv=<optimized out>) at ../../shell/main.cpp:176

Possible duplicates by query: bug 354259, bug 354218, bug 354123, bug 353425, bug 353394.

Reported using DrKonqi