Bug 369432

Summary:	KDE crash when new user first time login
Product:	[Plasma] plasmashell	Reporter:	Guo Yunhe <i>
Component:	general	Assignee:	David Edmundson <kde>
Status:	RESOLVED NOT A BUG
Severity:	crash	CC:	bhush94, plasma-bugs
Priority:	NOR	Keywords:	drkonqi
Version:	5.7.95
Target Milestone:	1.0
Platform:	openSUSE
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Guo Yunhe 2016-09-27 16:29:30 UTC

Application: plasmashell (5.7.95)

Qt Version: 5.7.0
Frameworks Version: 5.26.0
Operating System: Linux 4.1.31-30-default x86_64
Distribution: "openSUSE Leap 42.1 (x86_64)"

-- Information about the crash:
Steps to reproduce:

1. Create a new user
2. Logout
3. Login with new user
4. Wait plasma workspace to load

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma (plasmashell), signal: Aborted
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fcaa2a477c0 (LWP 3428))]

Thread 7 (Thread 0x7fc9de212700 (LWP 3812)):
#0  0x00007fca9c1f6bfd in poll () at /lib64/libc.so.6
#1  0x00007fca97395e64 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fca97395f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fca9cafbf3b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007fca9caab88b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007fca9c8f202a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007fc9df85ecf7 in KCupsConnection::run() () at /usr/lib64/libkcupslib.so
#7  0x00007fca9c8f6859 in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007fca9ba000a4 in start_thread () at /lib64/libpthread.so.0
#9  0x00007fca9c1ff02d in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7fc9ea49b700 (LWP 3670)):
#0  0x00007fca9c1f6bfd in poll () at /lib64/libc.so.6
#1  0x00007fca97395e64 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fca97395f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fca9cafbf3b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007fca9caab88b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007fca9c8f202a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007fcaa06fe102 in  () at /usr/lib64/libQt5Quick.so.5
#7  0x00007fca9c8f6859 in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007fca9ba000a4 in start_thread () at /lib64/libpthread.so.0
#9  0x00007fca9c1ff02d in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7fca793bf700 (LWP 3569)):
#0  0x00007fca9ba0403f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fcaa213698b in  () at /usr/lib64/libQt5Script.so.5
#2  0x00007fcaa21369b9 in  () at /usr/lib64/libQt5Script.so.5
#3  0x00007fca9ba000a4 in start_thread () at /lib64/libpthread.so.0
#4  0x00007fca9c1ff02d in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7fca7b1f4700 (LWP 3531)):
#0  0x00007fca973d7d14 in g_mutex_unlock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007fca973954a0 in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fca97395d80 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fca97395f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007fca9cafbf3b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007fca9caab88b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007fca9c8f202a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007fca9fb7c8d8 in  () at /usr/lib64/libQt5Qml.so.5
#8  0x00007fca9c8f6859 in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007fca9ba000a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fca9c1ff02d in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7fca88c8a700 (LWP 3462)):
#0  0x00007fca973d7cf9 in g_mutex_lock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007fca973954b9 in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fca97395d80 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fca97395f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007fca9cafbf3b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007fca9caab88b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007fca9c8f202a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007fca9fb7c8d8 in  () at /usr/lib64/libQt5Qml.so.5
#8  0x00007fca9c8f6859 in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007fca9ba000a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fca9c1ff02d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7fca8a6cf700 (LWP 3453)):
[KCrash Handler]
#6  0x00007fca9c14f0c7 in raise () at /lib64/libc.so.6
#7  0x00007fca9c150478 in abort () at /lib64/libc.so.6
#8  0x00007fca9c18c784 in  () at /lib64/libc.so.6
#9  0x00007fca9c192026 in malloc_printerr () at /lib64/libc.so.6
#10 0x00007fca9c1945d5 in _int_malloc () at /lib64/libc.so.6
#11 0x00007fca9c19595c in malloc () at /lib64/libc.so.6
#12 0x00007fca9c8f786f in QArrayData::allocate(unsigned long, unsigned long, unsigned long, QFlags<QArrayData::AllocationOption>) () at /usr/lib64/libQt5Core.so.5
#13 0x00007fca9c979b23 in QString::QString(int, Qt::Initialization) () at /usr/lib64/libQt5Core.so.5
#14 0x00007fca9cb0328d in  () at /usr/lib64/libQt5Core.so.5
#15 0x00007fca9c9803ce in QString::fromUtf8_helper(char const*, int) () at /usr/lib64/libQt5Core.so.5
#16 0x00007fca9d631fc1 in  () at /usr/lib64/libQt5DBus.so.5
#17 0x00007fca9d62a8ce in  () at /usr/lib64/libQt5DBus.so.5
#18 0x00007fca98baf6a6 in dbus_connection_dispatch () at /lib64/libdbus-1.so.3
#19 0x00007fca9d62a4f1 in  () at /usr/lib64/libQt5DBus.so.5
#20 0x00007fca9d62a7e9 in  () at /usr/lib64/libQt5DBus.so.5
#21 0x00007fca9cad5cec in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#22 0x00007fca9cb4d15e in QSocketNotifier::activated(int, QSocketNotifier::QPrivateSignal) () at /usr/lib64/libQt5Core.so.5
#23 0x00007fca9cae27e9 in QSocketNotifier::event(QEvent*) () at /usr/lib64/libQt5Core.so.5
#24 0x00007fca9caad5e1 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#25 0x00007fca9cafcb2e in  () at /usr/lib64/libQt5Core.so.5
#26 0x00007fca97395c84 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#27 0x00007fca97395ed8 in  () at /usr/lib64/libglib-2.0.so.0
#28 0x00007fca97395f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#29 0x00007fca9cafbf1c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#30 0x00007fca9caab88b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#31 0x00007fca9c8f202a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#32 0x00007fca9d619465 in  () at /usr/lib64/libQt5DBus.so.5
#33 0x00007fca9c8f6859 in  () at /usr/lib64/libQt5Core.so.5
#34 0x00007fca9ba000a4 in start_thread () at /lib64/libpthread.so.0
#35 0x00007fca9c1ff02d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7fcaa2a477c0 (LWP 3428)):
#0  0x00007fca9c1fafb9 in syscall () at /lib64/libc.so.6
#1  0x00007fca9c8ee946 in QBasicMutex::lockInternal() () at /usr/lib64/libQt5Core.so.5
#2  0x00007fca9c8eec43 in QMutex::lock() () at /usr/lib64/libQt5Core.so.5
#3  0x00007fca9d621db7 in  () at /usr/lib64/libQt5DBus.so.5
#4  0x00007fca9d66ab35 in  () at /usr/lib64/libQt5DBus.so.5
#5  0x00007fca9cad56a5 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#6  0x00007fca9d646df1 in  () at /usr/lib64/libQt5DBus.so.5
#7  0x00007fca9d647365 in  () at /usr/lib64/libQt5DBus.so.5
#8  0x00007fca9d6474cc in  () at /usr/lib64/libQt5DBus.so.5
#9  0x00007fca9d647f13 in  () at /usr/lib64/libQt5DBus.so.5
#10 0x00007fca9cad5c6c in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#11 0x00007fc9dc423e8f in  () at /usr/lib64/qt5/plugins/plasma/dataengine/plasma_engine_notifications.so
#12 0x00007fc9dc424111 in  () at /usr/lib64/qt5/plugins/plasma/dataengine/plasma_engine_notifications.so
#13 0x00007fca9cad56a5 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#14 0x00007fc9dc42434c in  () at /usr/lib64/qt5/plugins/plasma/dataengine/plasma_engine_notifications.so
#15 0x00007fc9dc41ca32 in  () at /usr/lib64/qt5/plugins/plasma/dataengine/plasma_engine_notifications.so
#16 0x00007fca9cad6db6 in QObject::event(QEvent*) () at /usr/lib64/libQt5Core.so.5
#17 0x00007fca9d9e6a9c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#18 0x00007fca9d9eda20 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#19 0x00007fca9caad5b5 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#20 0x00007fca9caaf613 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib64/libQt5Core.so.5
#21 0x00007fca9cafc6d3 in  () at /usr/lib64/libQt5Core.so.5
#22 0x00007fca97395c84 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#23 0x00007fca97395ed8 in  () at /usr/lib64/libglib-2.0.so.0
#24 0x00007fca97395f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#25 0x00007fca9cafbf1c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#26 0x00007fca9caab88b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#27 0x00007fca9cab3686 in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5
#28 0x000000000041e8fc in  ()
#29 0x00007fca9c13bb25 in __libc_start_main () at /lib64/libc.so.6
#30 0x000000000041eb56 in _start ()

Reported using DrKonqi

Comment 1 David Edmundson 2016-09-28 10:20:06 UTC

Thanks.

Does this happen every time?
Can you install debug symbols for QtDbus?

Comment 2 Guo Yunhe 2016-10-09 19:45:35 UTC

Cannot reproduce this anymore after update to 5.8.0. Think it should have been fixed or it is just invalid.