Application: plasma-discover (5.9.4)

Qt Version: 5.7.1
Frameworks Version: 5.31.0
Operating System: Linux 4.10.0-20-generic x86_64
Distribution: Ubuntu 17.04

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

I was searching for various plasma themes.  I had run it manually with plasma-discover --compact full.   The crash ended with this on the screen: 


org.kde.knewstuff.core: Redirected to  "https://download.kde.org/khotnewstuff/korganizercalenders/korganizercalenders.xml" ...
org.kde.knewstuff.core: Redirected to  "https://distribute.kde.org/khotnewstuff/korganizercalenders/korganizercalenders.xml" ...
KCrash: crashing... crashRecursionCounter = 2
KCrash: Application Name = plasma-discover path = /usr/bin pid = 11328
KCrash: Arguments: /usr/bin/plasma-discover --compact full
KCrash: Attempting to start /usr/lib/x86_64-linux-gnu/libexec/drkonqi from kdeinit
sock_file=/run/user/1000/kdeinit5__0
QSocketNotifier: Invalid socket 25 and type 'Write', disabling...
QSocketNotifier: Invalid socket 8 and type 'Read', disabling...
QSocketNotifier: Invalid socket 16 and type 'Read', disabling...
QSocketNotifier: Invalid socket 13 and type 'Read', disabling...
QSocketNotifier: Invalid socket 34 and type 'Read', disabling...
QSocketNotifier: Invalid socket 19 and type 'Read', disabling...
QSocketNotifier: Invalid socket 26 and type 'Write', disabling...
QSocketNotifier: Invalid socket 32 and type 'Write', disabling...
QSocketNotifier: Invalid socket 20 and type 'Read', disabling...
QSocketNotifier: Invalid socket 40 and type 'Write', disabling...
QSocketNotifier: Invalid socket 27 and type 'Write', disabling...

The crash can be reproduced sometimes.

-- Backtrace:
Application: Discover (plasma-discover), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f712f3ee8c0 (LWP 11328))]

Thread 19 (Thread 0x7f70d97fa700 (LWP 11456)):
#0  0x00007f712a99e18d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f7125650576 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f712565068c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f712b5caf2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f712b57488a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f712b3a1fe3 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f712b3a6c98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f71277816da in start_thread (arg=0x7f70d97fa700) at pthread_create.c:456
#8  0x00007f712a9aa17f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 18 (Thread 0x7f70daffd700 (LWP 11430)):
#0  0x00007f712f2cfe15 in __GI___tls_get_addr (ti=0x7f712b9bf660) at dl-tls.c:834
#1  0x00007f712b3a5b26 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f712b5ca67a in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f712564fa6d in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f712565049b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f712565068c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f712b5caf2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f712b57488a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f712b3a1fe3 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f712b3a6c98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f71277816da in start_thread (arg=0x7f70daffd700) at pthread_create.c:456
#11 0x00007f712a9aa17f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 17 (Thread 0x7f70f0afa700 (LWP 11428)):
#0  0x00007f712a999cad in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f7125694b30 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7125650042 in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7125650514 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f712565068c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f712b5caf2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f712b57488a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f712b3a1fe3 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f712b3a6c98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f71277816da in start_thread (arg=0x7f70f0afa700) at pthread_create.c:456
#10 0x00007f712a9aa17f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 16 (Thread 0x7f70f12fb700 (LWP 11427)):
#0  0x00007f71256500d2 in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f71256505e0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f712565068c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f712b5caf2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f712b57488a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f712b3a1fe3 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f712b3a6c98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f71277816da in start_thread (arg=0x7f70f12fb700) at pthread_create.c:456
#8  0x00007f712a9aa17f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 15 (Thread 0x7f70977fe700 (LWP 11426)):
#0  0x00007f712565010a in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f71256505e0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f712565068c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f712b5caf2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f712b57488a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f712b3a1fe3 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f712b3a6c98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f71277816da in start_thread (arg=0x7f70977fe700) at pthread_create.c:456
#8  0x00007f712a9aa17f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 14 (Thread 0x7f70f1afc700 (LWP 11425)):
#0  0x00007f712b5ca42f in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007f712564ff89 in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7125650514 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f712565068c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f712b5caf2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f712b57488a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f712b3a1fe3 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f712b3a6c98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f71277816da in start_thread (arg=0x7f70f1afc700) at pthread_create.c:456
#9  0x00007f712a9aa17f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 13 (Thread 0x7f70f22fd700 (LWP 11424)):
#0  0x00007f7125695ef4 in g_mutex_unlock () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f712564fa60 in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f712565049b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f712565068c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f712b5caf2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f712b57488a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f712b3a1fe3 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f712b3a6c98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f71277816da in start_thread (arg=0x7f70f22fd700) at pthread_create.c:456
#9  0x00007f712a9aa17f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 12 (Thread 0x7f70f3714700 (LWP 11423)):
#0  0x00007f712a999cad in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f7125694b30 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7125650042 in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7125650514 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f712565068c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f712b5caf2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f712b57488a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f712b3a1fe3 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f712b3a6c98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f71277816da in start_thread (arg=0x7f70f3714700) at pthread_create.c:456
#10 0x00007f712a9aa17f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 11 (Thread 0x7f707f7fe700 (LWP 11422)):
#0  0x00007f712a999cad in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f7125694b30 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7125650042 in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7125650514 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f712565068c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f712b5caf2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f712b57488a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f712b3a1fe3 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f712b3a6c98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f71277816da in start_thread (arg=0x7f707f7fe700) at pthread_create.c:456
#10 0x00007f712a9aa17f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 10 (Thread 0x7f707d4ab700 (LWP 11367)):
#0  0x00007f712a999cad in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f7125694b30 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7125650042 in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7125650514 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7125650902 in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f70b42db476 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007f7125677f65 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f71277816da in start_thread (arg=0x7f707d4ab700) at pthread_create.c:456
#8  0x00007f712a9aa17f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 9 (Thread 0x7f707dcac700 (LWP 11366)):
#0  0x00007f712564d5af in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f712564fec4 in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7125650514 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f712565068c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f71256506d1 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f7125677f65 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f71277816da in start_thread (arg=0x7f707dcac700) at pthread_create.c:456
#7  0x00007f712a9aa17f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 8 (Thread 0x7f70dbfff700 (LWP 11342)):
#0  0x00007f712a99e18d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f7125650576 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f712565068c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f712b5caf2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f712b57488a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f712b3a1fe3 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f712b3a6c98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f71277816da in start_thread (arg=0x7f70dbfff700) at pthread_create.c:456
#8  0x00007f712a9aa17f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 7 (Thread 0x7f70f8ca3700 (LWP 11335)):
#0  0x00007f712a9ab120 in __libc_recvmsg (fd=9, msg=0x7f70f8ca1bc0, flags=0) at ../sysdeps/unix/sysv/linux/recvmsg.c:28
#1  0x00007f712a9c5cbd in __netlink_request (h=h@entry=0x7f70f8ca1cc0, type=type@entry=18) at ../sysdeps/unix/sysv/linux/ifaddrs.c:173
#2  0x00007f712a9c5fa4 in getifaddrs_internal (ifap=ifap@entry=0x7f70f8ca1d88) at ../sysdeps/unix/sysv/linux/ifaddrs.c:337
#3  0x00007f712a9c6ce0 in __getifaddrs (ifap=0x7f70f8ca1d88) at ../sysdeps/unix/sysv/linux/ifaddrs.c:831
#4  0x00007f71298d25fb in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#5  0x00007f71298cd6b5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#6  0x00007f71298ce185 in QNetworkInterface::allInterfaces() () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#7  0x00007f70f805b7e6 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/bearer/libqgenericbearer.so
#8  0x00007f712b5819ee in QMetaMethod::invoke(QObject*, Qt::ConnectionType, QGenericReturnArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument) const () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f712b58744a in QMetaObject::invokeMethod(QObject*, char const*, Qt::ConnectionType, QGenericReturnArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f71298adf0b in QNetworkConfigurationManagerPrivate::pollEngines() () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#11 0x00007f712993137d in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#12 0x00007f712b5a24a9 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f712b5aee38 in QTimer::timerEvent(QTimerEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f712b5a3313 in QObject::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f712b57688b in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007f712b5c9eae in QTimerInfoList::activateTimers() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f712b5ca3d1 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f7125650377 in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f71256505e0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f712565068c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f712b5caf0f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007f712b57488a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f712b3a1fe3 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007f712b3a6c98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007f71277816da in start_thread (arg=0x7f70f8ca3700) at pthread_create.c:456
#26 0x00007f712a9aa17f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 6 (Thread 0x7f70fd0a4700 (LWP 11334)):
#0  0x00007f712a99e18d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f7125650576 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f712565068c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f712b5caf2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f712b57488a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f712b3a1fe3 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f712e77e4c6 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f712b3a6c98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f71277816da in start_thread (arg=0x7f70fd0a4700) at pthread_create.c:456
#9  0x00007f712a9aa17f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 5 (Thread 0x7f710bfff700 (LWP 11333)):
#0  0x00007f7127787510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f710a6fe52b in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#2  0x00007f710a6fe257 in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#3  0x00007f71277816da in start_thread (arg=0x7f710bfff700) at pthread_create.c:456
#4  0x00007f712a9aa17f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 4 (Thread 0x7f711274b700 (LWP 11331)):
#0  0x00007f712a999cad in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f7125694b30 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7125650042 in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7125650514 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f712565068c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f712b5caf2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f712b57488a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f712b3a1fe3 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f712bf2bdf5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f712b3a6c98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f71277816da in start_thread (arg=0x7f711274b700) at pthread_create.c:456
#11 0x00007f712a9aa17f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 3 (Thread 0x7f711395c700 (LWP 11330)):
#0  0x00007f712a99e18d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f7125650576 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f712565068c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f712b5caf2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f712b57488a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f712b3a1fe3 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f712d2005c5 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f712b3a6c98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f71277816da in start_thread (arg=0x7f711395c700) at pthread_create.c:456
#9  0x00007f712a9aa17f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 2 (Thread 0x7f711c154700 (LWP 11329)):
#0  0x00007f712a99e18d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f71251e5c62 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f71251e78d7 in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f711e6abed9 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f712b3a6c98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f71277816da in start_thread (arg=0x7f711c154700) at pthread_create.c:456
#6  0x00007f712a9aa17f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 1 (Thread 0x7f712f3ee8c0 (LWP 11328)):
[KCrash Handler]
#6  0x00007f712b576821 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f712e7ff469 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f712e808357 in QQuickItemPrivate::deliverKeyEvent(QKeyEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007f712e8086e1 in QQuickItem::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007f712cae035c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007f712cae7b11 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007f712b5768a0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f712e7ff469 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007f712e808357 in QQuickItemPrivate::deliverKeyEvent(QKeyEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#15 0x00007f712e8086e1 in QQuickItem::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x00007f712cae035c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007f712cae7b11 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007f712b5768a0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f712e7ff469 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#20 0x00007f712e808357 in QQuickItemPrivate::deliverKeyEvent(QKeyEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#21 0x00007f712e8086e1 in QQuickItem::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#22 0x00007f712cae035c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#23 0x00007f712cae7b11 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#24 0x00007f712b5768a0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007f712e7ff469 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#26 0x00007f712e808357 in QQuickItemPrivate::deliverKeyEvent(QKeyEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#27 0x00007f712e8086e1 in QQuickItem::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#28 0x00007f712cae035c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#29 0x00007f712cae7b11 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#30 0x00007f712b5768a0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007f712e81b143 in QQuickWindow::sendEvent(QQuickItem*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#32 0x00007f712e81b58f in QQuickWindow::keyReleaseEvent(QKeyEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#33 0x00007f712c358475 in QWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#34 0x00007f712e823245 in QQuickWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#35 0x00007f712cae035c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#36 0x00007f712cae7b11 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#37 0x00007f712b5768a0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#38 0x00007f712c348d18 in QGuiApplicationPrivate::processKeyEvent(QWindowSystemInterfacePrivate::KeyEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#39 0x00007f712c34e285 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#40 0x00007f712c32c23b in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#41 0x00007f711e6e2830 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#42 0x00007f7125650377 in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#43 0x00007f71256505e0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#44 0x00007f712565068c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#45 0x00007f712b5caf0f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#46 0x00007f712b57488a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#47 0x00007f712b57cffc in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#48 0x0000562935c1bb16 in  ()
#49 0x00007f712a8c23f1 in __libc_start_main (main=0x562935c1b410, argc=3, argv=0x7fff85b81f48, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff85b81f38) at ../csu/libc-start.c:291
#50 0x0000562935c1bd5a in _start ()

Reported using DrKonqi