Bug 417537

Application: plasmashell (5.17.5)
 (Compiled from sources)
Qt Version: 5.13.2
Frameworks Version: 5.64.0
Operating System: Linux 4.19.72-gentoo x86_64
Distribution: "Gentoo Base System release 2.6"

-- Information about the crash:
- What I was doing when the application crashed:
waiting for plasma to start. i had just logged in, entering passwd and pass-phrase into sshaskkey popup

- Unusual behavior I noticed:

i have 2 screens. the RHS screen showed a background image, but the LHS was fully black. Not sure if the background image didn't load.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f18a9fa97c0 (LWP 5081))]

Thread 8 (Thread 0x7f18659c3700 (LWP 5346)):
#0  0x00007f18acec11c4 in g_mutex_unlock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007f18ace76241 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f18ace767d2 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f18ace7694f in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f18af0032eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f18aefaec6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f18aee12b21 in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007f1874245298 in KCupsConnection::run() () at /usr/lib64/libkcupslib.so
#8  0x00007f18aee13bb2 in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007f18adc71427 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f18aea109ff in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7f18777fe700 (LWP 5340)):
#0  0x00007f18aea04d83 in poll () at /lib64/libc.so.6
#1  0x00007f18ace7682e in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f18ace7694f in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f18af0032eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f18aefaec6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f18aee12b21 in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f18aee13bb2 in  () at /usr/lib64/libQt5Core.so.5
#7  0x00007f18adc71427 in start_thread () at /lib64/libpthread.so.0
#8  0x00007f18aea109ff in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f1877fff700 (LWP 5337)):
#0  0x00007f18aea04d83 in poll () at /lib64/libc.so.6
#1  0x00007f18ace7682e in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f18ace7694f in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f18af0032eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f18aefaec6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f18aee12b21 in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f18b08f1596 in  () at /usr/lib64/libQt5Quick.so.5
#7  0x00007f18aee13bb2 in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f18adc71427 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f18aea109ff in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f187f7ff700 (LWP 5336)):
#0  0x00007f18adc77f25 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f18aee19243 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib64/libQt5Core.so.5
#2  0x00007f18aee192c9 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#3  0x00007f18b0976c79 in  () at /usr/lib64/libQt5Quick.so.5
#4  0x00007f18b0976eda in  () at /usr/lib64/libQt5Quick.so.5
#5  0x00007f18aee13bb2 in  () at /usr/lib64/libQt5Core.so.5
#6  0x00007f18adc71427 in start_thread () at /lib64/libpthread.so.0
#7  0x00007f18aea109ff in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f18876b7700 (LWP 5321)):
#0  0x00007f18adc77f25 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f18aee19243 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib64/libQt5Core.so.5
#2  0x00007f18aee192c9 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#3  0x00007f18b0976c79 in  () at /usr/lib64/libQt5Quick.so.5
#4  0x00007f18b0976eda in  () at /usr/lib64/libQt5Quick.so.5
#5  0x00007f18aee13bb2 in  () at /usr/lib64/libQt5Core.so.5
#6  0x00007f18adc71427 in start_thread () at /lib64/libpthread.so.0
#7  0x00007f18aea109ff in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f1899d29700 (LWP 5119)):
#0  0x00007f18acec11c4 in g_mutex_unlock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007f18ace761d8 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f18ace767d2 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f18ace7694f in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f18af0032eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f18aefaec6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f18aee12b21 in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007f18b0615d25 in  () at /usr/lib64/libQt5Qml.so.5
#8  0x00007f18aee13bb2 in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007f18adc71427 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f18aea109ff in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f189b1d4700 (LWP 5087)):
#0  0x00007f18aea04d83 in poll () at /lib64/libc.so.6
#1  0x00007f18ace7682e in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f18ace7694f in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f18af0032eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f18aefaec6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f18aee12b21 in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f18af7f0575 in  () at /usr/lib64/libQt5DBus.so.5
#7  0x00007f18aee13bb2 in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f18adc71427 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f18aea109ff in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f18a9fa97c0 (LWP 5081)):
[KCrash Handler]
#6  0x00007f1874264156 in JobModel::updateJob(int, KCupsJob const&) () at /usr/lib64/libkcupslib.so
#7  0x00007f18742661f8 in JobModel::insertJob(int, KCupsJob const&) () at /usr/lib64/libkcupslib.so
#8  0x00007f18742666b9 in JobModel::getJobFinished(KCupsRequest*) () at /usr/lib64/libkcupslib.so
#9  0x00007f18aefd9fea in QObject::event(QEvent*) () at /usr/lib64/libQt5Core.so.5
#10 0x00007f18afa64691 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#11 0x00007f18afa6bb30 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#12 0x00007f18aefafdd0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#13 0x00007f18aefb2d73 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib64/libQt5Core.so.5
#14 0x00007f18af003533 in  () at /usr/lib64/libQt5Core.so.5
#15 0x00007f18ace76633 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#16 0x00007f18ace768c0 in  () at /usr/lib64/libglib-2.0.so.0
#17 0x00007f18ace7694f in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#18 0x00007f18af0032d1 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#19 0x00007f18aefaec6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#20 0x00007f18aefb68d2 in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5
#21 0x0000556de5c59206 in  ()
#22 0x00007f18ae92ee9b in __libc_start_main () at /lib64/libc.so.6
#23 0x0000556de5c5963a in _start ()
[Inferior 1 (process 5081) detached]

The reporter indicates this bug may be a duplicate of or related to bug 416088.

Possible duplicates by query: bug 416985, bug 416215, bug 416088, bug 414883, bug 414882.

Reported using DrKonqi