Bug 395238

Summary: discover has issues connecting to repo's and crashes randomly when searching
Product: [Applications] Discover Reporter: cervanz
Component: discoverAssignee: Aleix Pol <aleixpol>
Status: RESOLVED NOT A BUG    
Severity: crash Keywords: drkonqi
Priority: NOR    
Version: 5.12.5   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description cervanz 2018-06-11 09:52:23 UTC 
Application: plasma-discover (5.12.5)

Qt Version: 5.11.0
Frameworks Version: 5.46.0
Operating System: Linux 4.16.13-2-ARCH x86_64
Distribution (Platform): Archlinux Packages

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

opened up discover and clicked on application addons, i saw multiple errors stating "parley.knscr: error initializing provider" then it crashes. this problem is repeatable and happens every time i open discover. Now the discover app refuses to load and crashes immediately with no error.

-- Backtrace:
Application: Discover (plasma-discover), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f28f4238800 (LWP 4210))]

Thread 34 (Thread 0x7f28e1598700 (LWP 4346)):
#0  0x00007f28ef7b40f9 in syscall () at /usr/lib/libc.so.6
#1  0x00007f28e9cab52d in g_cond_wait_until () at /usr/lib/libglib-2.0.so.0
#2  0x00007f28e9c36903 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f28e9c8d436 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f28e9c8ca2a in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 33 (Thread 0x7f2801ffb700 (LWP 4345)):
#0  0x00007f28ef7b40f9 in syscall () at /usr/lib/libc.so.6
#1  0x00007f28e9cab52d in g_cond_wait_until () at /usr/lib/libglib-2.0.so.0
#2  0x00007f28e9c36903 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f28e9c8d436 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f28e9c8ca2a in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 32 (Thread 0x7f2800ff9700 (LWP 4344)):
#0  0x00007f28ef7b40f9 in syscall () at /usr/lib/libc.so.6
#1  0x00007f28e9cab52d in g_cond_wait_until () at /usr/lib/libglib-2.0.so.0
#2  0x00007f28e9c36903 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f28e9c8d436 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f28e9c8ca2a in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 31 (Thread 0x7f27fb7fe700 (LWP 4343)):
#0  0x00007f28ef7b40f9 in syscall () at /usr/lib/libc.so.6
#1  0x00007f28e9cab52d in g_cond_wait_until () at /usr/lib/libglib-2.0.so.0
#2  0x00007f28e9c36903 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f28e9c8d436 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f28e9c8ca2a in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 30 (Thread 0x7f27faffd700 (LWP 4342)):
#0  0x00007f28ef7b40f9 in syscall () at /usr/lib/libc.so.6
#1  0x00007f28e9cab52d in g_cond_wait_until () at /usr/lib/libglib-2.0.so.0
#2  0x00007f28e9c36903 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f28e9c8d436 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f28e9c8ca2a in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 29 (Thread 0x7f2802ffd700 (LWP 4327)):
#0  0x00007f28ef7aeea9 in poll () at /usr/lib/libc.so.6
#1  0x00007f28e9c64523 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f28e9c6463e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f28f00cae64 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f28f007685c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f28efebfac9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f28efec9b95 in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 28 (Thread 0x7f28467fc700 (LWP 4255)):
#0  0x00007f28ebe9d3f6 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f28efeca22d in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f28efec1c54 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f28efec9b95 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 27 (Thread 0x7f2846ffd700 (LWP 4254)):
#0  0x00007f28ebe9d3f6 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f28efeca22d in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f28efec1c54 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f28efec9b95 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 26 (Thread 0x7f2847fff700 (LWP 4252)):
#0  0x00007f28ebe9d3f6 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f28efeca22d in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f28efec1c54 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f28efec9b95 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 25 (Thread 0x7f285d331700 (LWP 4250)):
#0  0x00007f28ebe9d3f6 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f28efeca22d in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f28efec1c54 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f28efec9b95 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 24 (Thread 0x7f285eb34700 (LWP 4247)):
#0  0x00007f28ebe9d3f6 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f28efeca22d in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f28efec1c54 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f28efec9b95 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 23 (Thread 0x7f285f5c8700 (LWP 4246)):
#0  0x00007f28ebe9d3f6 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f28efeca22d in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f28efec1c54 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f28efec9b95 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 22 (Thread 0x7f2865030700 (LWP 4243)):
#0  0x00007f28ebe9d3f6 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f28efeca22d in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f28efec1c54 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f28efec9b95 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 21 (Thread 0x7f28667fc700 (LWP 4241)):
#0  0x00007f28ebe9d3f6 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f28efeca22d in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f28efec1c54 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f28efec9b95 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 20 (Thread 0x7f28677fe700 (LWP 4239)):
#0  0x00007f28ebe9d3f6 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f28efeca22d in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f28efec1c54 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f28efec9b95 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 19 (Thread 0x7f288cff9700 (LWP 4237)):
#0  0x00007f28ebe9d3f6 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f28efeca22d in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f28efec1c54 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f28efec9b95 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 18 (Thread 0x7f288d7fa700 (LWP 4236)):
#0  0x00007f28ebe9d3f6 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f28efeca22d in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f28efec1c54 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f28efec9b95 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 17 (Thread 0x7f288dffb700 (LWP 4235)):
#0  0x00007f28ebe9d3f6 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f28efeca22d in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f28efec1c54 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f28efec9b95 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 16 (Thread 0x7f288f7fe700 (LWP 4232)):
#0  0x00007f28ef7aa934 in read () at /usr/lib/libc.so.6
#1  0x00007f28e9ca9ed1 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f28e9c63ff8 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007f28e9c644c6 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f28e9c6463e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007f28e9c64692 in  () at /usr/lib/libglib-2.0.so.0
#6  0x00007f28e9c8ca2a in  () at /usr/lib/libglib-2.0.so.0
#7  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 15 (Thread 0x7f288ffff700 (LWP 4231)):
#0  0x00007f28ebe9d3f6 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f28efeca22d in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f28efec1c54 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f28efec9b95 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 14 (Thread 0x7f2895285700 (LWP 4229)):
#0  0x00007f28ebe9d3f6 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f28efeca22d in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f28efec1c54 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f28efec9b95 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 13 (Thread 0x7f2896287700 (LWP 4227)):
#0  0x00007f28ebe9d3f6 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f28efeca22d in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f28efec1c54 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f28efec9b95 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 12 (Thread 0x7f28a9610700 (LWP 4226)):
#0  0x00007f28ef7aeea9 in poll () at /usr/lib/libc.so.6
#1  0x00007f28cec03805 in  () at /usr/lib/libGLX_nvidia.so.0
#2  0x00007f28cda2ca44 in  () at /usr/lib/libnvidia-glcore.so.396.24
#3  0x00007f28cd94d9ce in  () at /usr/lib/libnvidia-glcore.so.396.24
#4  0x00007f28cebf9c0e in  () at /usr/lib/libGLX_nvidia.so.0
#5  0x00007f28e077f569 in  () at /usr/lib/qt/plugins/xcbglintegrations/libqxcb-glx-integration.so
#6  0x00007f28f0ef16f0 in QOpenGLContext::swapBuffers(QSurface*) () at /usr/lib/libQt5Gui.so.5
#7  0x00007f28f3339198 in  () at /usr/lib/libQt5Quick.so.5
#8  0x00007f28f333cf08 in  () at /usr/lib/libQt5Quick.so.5
#9  0x00007f28efec9b95 in  () at /usr/lib/libQt5Core.so.5
#10 0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7f28a8e0e700 (LWP 4224)):
#0  0x00007f28ef7aeea9 in poll () at /usr/lib/libc.so.6
#1  0x00007f28e9c64523 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f28e9c6463e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f28f00cae64 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f28f007685c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f28efebfac9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f28efec9b95 in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7f28a9e11700 (LWP 4223)):
#0  0x00007f28ebe9d3f6 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f28efeca22d in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f28efec1c54 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f28efec9b95 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7f28b6d53700 (LWP 4222)):
#0  0x00007f28ebe9d3f6 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f28efeca22d in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f28efec1c54 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f28efec9b95 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7f28b7554700 (LWP 4221)):
#0  0x00007f28ebe9d3f6 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f28efeca22d in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f28efec1c54 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f28efec9b95 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f28c48c7700 (LWP 4220)):
#0  0x00007f28ebe9d3f6 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f28efeca22d in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f28efec1c54 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f28efec9b95 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f28c50c8700 (LWP 4219)):
#0  0x00007f28ef7aeea9 in poll () at /usr/lib/libc.so.6
#1  0x00007f28e9c64523 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f28e9c6463e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f28f00cae64 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f28f007685c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f28efebfac9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f28efec9b95 in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f28c5f53700 (LWP 4217)):
#0  0x00007f28f00cab7d in  () at /usr/lib/libQt5Core.so.5
#1  0x00007f28e9c63a49 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#2  0x00007f28e9c6444e in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f28e9c6463e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f28f00cae64 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f28f007685c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f28efebfac9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f28efec9b95 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f28c7fff700 (LWP 4216)):
#0  0x00007f28ef7aeea9 in poll () at /usr/lib/libc.so.6
#1  0x00007f28e9c64523 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f28e9c6463e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f28f00cae64 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f28f007685c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f28efebfac9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f28f32bc27b in  () at /usr/lib/libQt5Quick.so.5
#7  0x00007f28efec9b95 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f28d7340700 (LWP 4214)):
#0  0x00007f28ef7aeea9 in poll () at /usr/lib/libc.so.6
#1  0x00007f28e9c64523 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f28e9c6463e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f28f00cae64 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f28f007685c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f28efebfac9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f28f0a4f559 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f28efec9b95 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f28d8551700 (LWP 4213)):
#0  0x00007f28ef7aeea9 in poll () at /usr/lib/libc.so.6
#1  0x00007f28e9c64523 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f28e9c6463e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f28f00cae64 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f28f007685c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f28efebfac9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f28f1d9e976 in  () at /usr/lib/libQt5DBus.so.5
#7  0x00007f28efec9b95 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f28ebe97075 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f28ef7b953f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f28f4238800 (LWP 4210)):
[KCrash Handler]
#6  0x00007f28f00a3463 in QObjectPrivate::addConnection(int, QObjectPrivate::Connection*) () at /usr/lib/libQt5Core.so.5
#7  0x00007f28f00a58ee in QObjectPrivate::connectImpl(QObject const*, int, QObject const*, void**, QtPrivate::QSlotObjectBase*, Qt::ConnectionType, int const*, QMetaObject const*) () at /usr/lib/libQt5Core.so.5
#8  0x00007f28f00a5cbc in QObject::connectImpl(QObject const*, void**, QObject const*, void**, QtPrivate::QSlotObjectBase*, Qt::ConnectionType, int const*, QMetaObject const*) () at /usr/lib/libQt5Core.so.5
#9  0x00007f28c6601800 in  () at /usr/lib/qt/plugins/discover/kns-backend.so
#10 0x00007f28f00a22e2 in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#11 0x00007f28f1680984 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#12 0x00007f28f168825b in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#13 0x00007f28f0077bc9 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#14 0x00007f28f007ac5c in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#15 0x00007f28f00cb864 in  () at /usr/lib/libQt5Core.so.5
#16 0x00007f28e9c64368 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#17 0x00007f28e9c645b1 in  () at /usr/lib/libglib-2.0.so.0
#18 0x00007f28e9c6463e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#19 0x00007f28f00cae49 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#20 0x00007f28e43dbb32 in  () at /usr/lib/libQt5XcbQpa.so.5
#21 0x00007f28f007685c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#22 0x00007f28f007eb56 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#23 0x000056272592ba56 in  ()
#24 0x00007f28ef6e406b in __libc_start_main () at /usr/lib/libc.so.6
#25 0x000056272592c01a in _start ()

The reporter indicates this bug may be a duplicate of or related to bug 390381.

Possible duplicates by query: bug 390381, bug 386999, bug 386319, bug 385679, bug 384871.

Reported using DrKonqi
Comment 1 Aleix Pol 2018-06-21 14:51:54 UTC 
There's not much I can do with this. Would it be possible to get a backtrace with debug symbols?
Comment 2 Christoph Feck 2018-07-18 16:29:05 UTC 
If you can provide the information requested in comment #1, please add it.
Comment 3 Christoph Feck 2018-08-02 17:23:36 UTC 
To further investigate this issue, KDE developers need the information requested in comment #1. If you can provide it, or need help with finding that information, please add a comment.
Comment 4 Christoph Feck 2018-08-30 20:37:18 UTC 
No response, changing status. If you have new information, please add a comment.