Application: plasmashell (5.2.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-21-generic x86_64
Distribution: Ubuntu 15.04

-- Information about the crash:
- What I was doing when the application crashed:
the laptop wake up after a sleep (~1h), but kwin_x11 ha been restarted 2 times before because crashed 2 times

- Unusual behavior I noticed:
2 crash of kwin_x11 before

The crash can be reproduced sometimes.

-- 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 0x7efbf7e517c0 (LWP 9895))]

Thread 32 (Thread 0x7efbe4cb1700 (LWP 9897)):
#0  0x00007efbf2bfa8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007efbf5167b72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007efbf516964f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007efbe7840099 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#4  0x00007efbf327bb0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbf24816aa in start_thread (arg=0x7efbe4cb1700) at pthread_create.c:333
#6  0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 31 (Thread 0x7efbde957700 (LWP 9901)):
#0  0x00007ffc0001fcee in clock_gettime ()
#1  0x00007efbf2c1438d in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007efbf3331cb6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007efbf3510639 in QTimerInfoList::updateCurrentTime() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007efbf3510ba5 in QTimerInfoList::timerWait(timespec&) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbf351203e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007efbef3063fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007efbef306de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007efbef306fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007efbf3512c6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007efbf34b73e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007efbf3276b44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007efbf5004f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#13 0x00007efbf327bb0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007efbf24816aa in start_thread (arg=0x7efbde957700) at pthread_create.c:333
#15 0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 30 (Thread 0x7efbd1ef2700 (LWP 9903)):
#0  0x00007efbf2bfc0b7 in ioctl () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007efbd5772919 in uki_firegl_MicroSleep () from /usr/lib/libatiuki.so.1
#2  0x00007efbd76c7920 in ?? () from /usr/lib/dri/fglrx_dri.so
#3  0x00007efbd6e58d72 in ?? () from /usr/lib/dri/fglrx_dri.so
#4  0x00007efbd6e58dc5 in ?? () from /usr/lib/dri/fglrx_dri.so
#5  0x00007efbf24816aa in start_thread (arg=0x7efbd1ef2700) at pthread_create.c:333
#6  0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 29 (Thread 0x7efbcbfff700 (LWP 9905)):
#0  0x00007efbf2bfa8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007efbef306ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007efbef306fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007efbf3512c6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007efbf34b73e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbf3276b44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007efbf5004f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007efbf327bb0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007efbf24816aa in start_thread (arg=0x7efbcbfff700) at pthread_create.c:333
#9  0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 28 (Thread 0x7efbc9fa7700 (LWP 9921)):
#0  0x00007ffc0001fcee in clock_gettime ()
#1  0x00007efbf2c1438d in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007efbf3331cb6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007efbf3510639 in QTimerInfoList::updateCurrentTime() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007efbf3510ba5 in QTimerInfoList::timerWait(timespec&) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbf351203e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007efbef3063fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007efbef306de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007efbef306fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007efbf3512c6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007efbf34b73e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007efbf3276b44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007efbf5004f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#13 0x00007efbf327bb0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007efbf24816aa in start_thread (arg=0x7efbc9fa7700) at pthread_create.c:333
#15 0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 27 (Thread 0x7efbc8ec6700 (LWP 9922)):
#0  0x00007ffc0001fcee in clock_gettime ()
#1  0x00007efbf2c1438d in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007efbf3331cb6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007efbf3510639 in QTimerInfoList::updateCurrentTime() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007efbf3510ba5 in QTimerInfoList::timerWait(timespec&) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbf351203e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007efbef3063fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007efbef306de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007efbef306fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007efbf3512c6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007efbf34b73e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007efbf3276b44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007efbf5004f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#13 0x00007efbf327bb0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007efbf24816aa in start_thread (arg=0x7efbc8ec6700) at pthread_create.c:333
#15 0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 26 (Thread 0x7efbbb7ff700 (LWP 9923)):
#0  0x00007efbef306e53 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007efbef306fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007efbf3512c6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007efbf34b73e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007efbf3276b44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbf5004f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#6  0x00007efbf327bb0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007efbf24816aa in start_thread (arg=0x7efbbb7ff700) at pthread_create.c:333
#8  0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 25 (Thread 0x7efbba7fe700 (LWP 9926)):
#0  0x00007ffc0001fcee in clock_gettime ()
#1  0x00007efbf2c1438d in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007efbf3331cb6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007efbf3510639 in QTimerInfoList::updateCurrentTime() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007efbf3510ba5 in QTimerInfoList::timerWait(timespec&) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbf351203e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007efbef3063fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007efbef306de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007efbef306fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007efbf3512c6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007efbf34b73e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007efbf3276b44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007efbf5004f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#13 0x00007efbf327bb0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007efbf24816aa in start_thread (arg=0x7efbba7fe700) at pthread_create.c:333
#15 0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 24 (Thread 0x7efbb97fd700 (LWP 9927)):
#0  0x00007efbef306448 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007efbef306de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007efbef306fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007efbf3512c6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007efbf34b73e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbf3276b44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007efbf5004f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007efbf327bb0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007efbf24816aa in start_thread (arg=0x7efbb97fd700) at pthread_create.c:333
#9  0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 23 (Thread 0x7efba7fff700 (LWP 9928)):
#0  0x00007ffc0001fcee in clock_gettime ()
#1  0x00007efbf2c1438d in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007efbf3331cb6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007efbf3510639 in QTimerInfoList::updateCurrentTime() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007efbf3510ba5 in QTimerInfoList::timerWait(timespec&) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbf351203e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007efbef3063fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007efbef306de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007efbef306fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007efbf3512c6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007efbf34b73e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007efbf3276b44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007efbf5004f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#13 0x00007efbf327bb0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007efbf24816aa in start_thread (arg=0x7efba7fff700) at pthread_create.c:333
#15 0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 22 (Thread 0x7efba6ffe700 (LWP 9929)):
#0  0x00007efbf2bfa8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007efbef306ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007efbef306fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007efbf3512c6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007efbf34b73e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbf3276b44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007efbf5004f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007efbf327bb0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007efbf24816aa in start_thread (arg=0x7efba6ffe700) at pthread_create.c:333
#9  0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 21 (Thread 0x7efba5df5700 (LWP 9930)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007efbf6f85644 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007efbf6f85689 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007efbf24816aa in start_thread (arg=0x7efba5df5700) at pthread_create.c:333
#4  0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 20 (Thread 0x7efba55f4700 (LWP 9931)):
#0  0x00007efbef34b798 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007efbef306409 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007efbef306de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007efbef306fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007efbf3512c6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbf34b73e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007efbf3276b44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007efbf5004f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007efbf327bb0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007efbf24816aa in start_thread (arg=0x7efba55f4700) at pthread_create.c:333
#10 0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 19 (Thread 0x7efb17d19700 (LWP 9932)):
#0  0x00007efbf2bfa8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007efbef306ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007efbef306fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007efbf3512c6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007efbf34b73e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbf3276b44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007efbf5004f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007efbf327bb0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007efbf24816aa in start_thread (arg=0x7efb17d19700) at pthread_create.c:333
#9  0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7efb16382700 (LWP 9933)):
#0  __GI___tls_get_addr (ti=0x7efbf3715680) at dl-tls.c:830
#1  0x00007efbf327aa12 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007efbf3512591 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007efbef3068c1 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007efbef306e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007efbef306fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007efbf3512c6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007efbf34b73e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007efbf3276b44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007efbf7aeeb56 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007efbf327bb0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007efbf24816aa in start_thread (arg=0x7efb16382700) at pthread_create.c:333
#12 0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7efb15781700 (LWP 9934)):
#0  0x00007ffc0001fcee in clock_gettime ()
#1  0x00007efbf2c1438d in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007efbf3331cb6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007efbf3510639 in QTimerInfoList::updateCurrentTime() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007efbf3510ba5 in QTimerInfoList::timerWait(timespec&) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbf351203e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007efbef3063fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007efbef306de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007efbef306fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007efbf3512c6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007efbf34b73e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007efbf3276b44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007efbf5004f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#13 0x00007efbf327bb0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007efbf24816aa in start_thread (arg=0x7efb15781700) at pthread_create.c:333
#15 0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7efb0df55700 (LWP 9936)):
#0  0x00007efbf2bf648d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007efbef34a2f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007efbef30696c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007efbef306e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007efbef306fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007efbf3512c6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007efbf34b73e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007efbf3276b44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007efbf5004f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007efbf327bb0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007efbf24816aa in start_thread (arg=0x7efb0df55700) at pthread_create.c:333
#11 0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7efb0ce52700 (LWP 9937)):
#0  0x00007efbef306483 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007efbef306de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007efbef306fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007efbf3512c6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007efbf34b73e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbf3276b44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007efbf5004f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007efbf327bb0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007efbf24816aa in start_thread (arg=0x7efb0ce52700) at pthread_create.c:333
#9  0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7efb077ff700 (LWP 9938)):
#0  0x00007efbf2bfa8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007efbef306ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007efbef306fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007efbf3512c6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007efbf34b73e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbf3276b44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007efbf5004f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007efbf327bb0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007efbf24816aa in start_thread (arg=0x7efb077ff700) at pthread_create.c:333
#9  0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7efb067fe700 (LWP 9939)):
#0  0x00007efbf351215c in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007efbef3068c1 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007efbef306e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007efbef306fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007efbf3512c6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbf34b73e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007efbf3276b44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007efbf5004f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007efbf327bb0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007efbf24816aa in start_thread (arg=0x7efb067fe700) at pthread_create.c:333
#10 0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7efb057fd700 (LWP 9940)):
#0  0x00007efbef34b236 in g_private_get () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007efbef32de00 in g_thread_self () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007efbef306fbd in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007efbf3512c6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007efbf34b73e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbf3276b44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007efbf5004f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007efbf327bb0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007efbf24816aa in start_thread (arg=0x7efb057fd700) at pthread_create.c:333
#9  0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7efb047fc700 (LWP 9942)):
#0  0x00007efbf3512092 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007efbef3068c1 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007efbef306e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007efbef306fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007efbf3512c6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbf34b73e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007efbf3276b44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007efbf5004f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007efbf327bb0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007efbf24816aa in start_thread (arg=0x7efb047fc700) at pthread_create.c:333
#10 0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7efb037fb700 (LWP 9943)):
#0  0x00007efbf2bfa8b7 in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007efbef306ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007efbef306fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007efbf3512c6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007efbf34b73e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbf3276b44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007efbf5004f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007efbf327bb0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007efbf24816aa in start_thread (arg=0x7efb037fb700) at pthread_create.c:333
#9  0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7efafd4be700 (LWP 9947)):
#0  0x00007efbf2bfa8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007efbef306ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007efbef306fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007efbf3512c6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007efbf34b73e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbf3276b44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007efaff773cf7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007efbf327bb0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007efbf24816aa in start_thread (arg=0x7efafd4be700) at pthread_create.c:333
#9  0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7efafcbd4700 (LWP 9948)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007efbf327cc6b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007efbf7b60fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007efbf7b613a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007efbf327bb0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbf24816aa in start_thread (arg=0x7efafcbd4700) at pthread_create.c:333
#6  0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7efafb012700 (LWP 9949)):
#0  0x00007ffc0001fcee in clock_gettime ()
#1  0x00007efbf2c1438d in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007efbf3331cb6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007efbf3510639 in QTimerInfoList::updateCurrentTime() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007efbf3510ba5 in QTimerInfoList::timerWait(timespec&) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbf351203e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007efbef3063fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007efbef306de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007efbef306fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007efbf3512c6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007efbf34b73e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007efbf3276b44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007efbf5004f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#13 0x00007efbf327bb0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007efbf24816aa in start_thread (arg=0x7efafb012700) at pthread_create.c:333
#15 0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7efaf7663700 (LWP 9961)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007efbf327cc6b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007efbf7b60fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007efbf7b613a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007efbf327bb0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbf24816aa in start_thread (arg=0x7efaf7663700) at pthread_create.c:333
#6  0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7efaf59e7700 (LWP 9963)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007efbf327cc6b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007efbf7b60fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007efbf7b613a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007efbf327bb0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbf24816aa in start_thread (arg=0x7efaf59e7700) at pthread_create.c:333
#6  0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7efaf3e7b700 (LWP 9976)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007efbf327cc6b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007efbf7b60fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007efbf7b613a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007efbf327bb0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbf24816aa in start_thread (arg=0x7efaf3e7b700) at pthread_create.c:333
#6  0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7efaf2104700 (LWP 10176)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007efbf327cc6b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007efbf7b60fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007efbf7b613a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007efbf327bb0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbf24816aa in start_thread (arg=0x7efaf2104700) at pthread_create.c:333
#6  0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7efaf05d8700 (LWP 10355)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007efbf327cc6b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007efbf7b60fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007efbf7b613a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007efbf327bb0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007efbf24816aa in start_thread (arg=0x7efaf05d8700) at pthread_create.c:333
#6  0x00007efbf2c05eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7efbf7e517c0 (LWP 9895)):
[KCrash Handler]
#6  KXErrorHandler::handle (this=0x91, dpy=0x26ba990, e=0x7ffbffffa630) at ../../src/kxerrorhandler.cpp:109
#7  0x00007efbf77c107e in KXErrorHandler::handler_wrapper (dpy=<optimized out>, e=<optimized out>) at ../../src/kxerrorhandler.cpp:102
#8  0x00007efbf53bb7ed in _XError (dpy=dpy@entry=0x26ba990, rep=rep@entry=0x7efbe0085d30) at ../../src/XlibInt.c:1463
#9  0x00007efbf53b87e7 in handle_error (dpy=0x26ba990, err=0x7efbe0085d30, in_XReply=<optimized out>) at ../../src/xcb_io.c:213
#10 0x00007efbf53b8895 in handle_response (dpy=dpy@entry=0x26ba990, response=0x7efbe0085d30, in_XReply=in_XReply@entry=1) at ../../src/xcb_io.c:325
#11 0x00007efbf53b973d in _XReply (dpy=dpy@entry=0x26ba990, rep=rep@entry=0x7ffbffffa820, extra=extra@entry=0, discard=discard@entry=0) at ../../src/xcb_io.c:648
#12 0x00007efbe7404f32 in XIQueryDevice (dpy=0x26ba990, deviceid=0, ndevices_return=0x7ffbffffa8fc) at ../../src/XIQueryDevice.c:60
#13 0x00007efbe785f782 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#14 0x00007efbe7860f00 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#15 0x00007efbe786126e in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#16 0x00007efbe783f665 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#17 0x00007efbe78404bb in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#18 0x00007efbf34eb73a in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007efbf3dc3b2c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x00007efbf3dc9000 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007efbf34b9c2b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007efbf34bbc9b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007efbf3512843 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007efbef306c3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007efbef306f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007efbef306fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007efbf3512c6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007efbf34b73e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007efbf34bf02c in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x000000000042fd9b in main (argc=4, argv=<optimized out>) at ../../shell/main.cpp:158

Possible duplicates by query: bug 349415, bug 349373, bug 349235, bug 348953, bug 348930.

Reported using DrKonqi