Application: plasmashell (5.3.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-28-lowlatency x86_64
Distribution: Ubuntu 15.04

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

I had left a console (Alt-F1) open overnight with my TV monitor turned off. On turning on the TV in the morning, I saw the console. Alt-F7 back to the KDE plasma desktop when I saw the error.

- Unusual behavior I noticed:

The desktop had disappeared, leaving just 2 X windows on applications, and 3 crash reports about Plasma.

- Custom settings of the application:

Like many others with similar problems, I use the Nvidia graphics driver with viewport scaling so that the 1080p desktop fills the screen, rather than extending beyond the visible screen.

Every since I upgraded KDE to plasmashell, I have had this problem.

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".
pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
[Current thread is 1 (Thread 0x7f6757c687c0 (LWP 5434))]

Thread 18 (Thread 0x7f6741843700 (LWP 5436)):
#0  0x00007f67527e58dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f6754f78b72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f6754f7a64f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f674440c099 in QXcbEventReader::run (this=0x13aa110) at qxcbconnection.cpp:1105
#4  0x00007f6752e66b0e in QThreadPrivate::start (arg=0x13aa110) at thread/qthread_unix.cpp:337
#5  0x00007f675206c6aa in start_thread (arg=0x7f6741843700) at pthread_create.c:333
#6  0x00007f67527f0eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7f673b488700 (LWP 5438)):
#0  0x00007f67527e58dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f674ef07ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f674ef07fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f67530fdc6c in QEventDispatcherGlib::processEvents (this=0x7f67340008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f67530a23e2 in QEventLoop::exec (this=this@entry=0x7f673b487de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f6752e61b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f6754bf0f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f6752e66b0e in QThreadPrivate::start (arg=0x14cafd0) at thread/qthread_unix.cpp:337
#8  0x00007f675206c6aa in start_thread (arg=0x7f673b488700) at pthread_create.c:333
#9  0x00007f67527f0eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7f6730c91700 (LWP 5441)):
#0  __libc_disable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:90
#1  0x00007f67527e58e9 in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0x00007f674ef07ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f674ef07fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f67530fdc6c in QEventDispatcherGlib::processEvents (this=0x7f672c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f67530a23e2 in QEventLoop::exec (this=this@entry=0x7f6730c90de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f6752e61b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f6754bf0f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f6752e66b0e in QThreadPrivate::start (arg=0x17f2120) at thread/qthread_unix.cpp:337
#9  0x00007f675206c6aa in start_thread (arg=0x7f6730c91700) at pthread_create.c:333
#10 0x00007f67527f0eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f672a395700 (LWP 5445)):
#0  0x00007f67527e58dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f674ef07ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f674ef07fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f67530fdc6c in QEventDispatcherGlib::processEvents (this=0x7f671c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f67530a23e2 in QEventLoop::exec (this=this@entry=0x7f672a394de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f6752e61b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f6754bf0f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f6752e66b0e in QThreadPrivate::start (arg=0x1664470) at thread/qthread_unix.cpp:337
#8  0x00007f675206c6aa in start_thread (arg=0x7f672a395700) at pthread_create.c:333
#9  0x00007f67527f0eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f6729394700 (LWP 5446)):
#0  0x00007f67527e149d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f674b4caf45 in ?? () from /usr/lib/nvidia-346/tls/libnvidia-tls.so.346.96
#2  0x00007f674ef4b2f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f674ef0796c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f674ef07e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f674ef07fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f67530fdc6c in QEventDispatcherGlib::processEvents (this=0x7f67200008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#7  0x00007f67530a23e2 in QEventLoop::exec (this=this@entry=0x7f6729393de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f6752e61b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#9  0x00007f6754bf0f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f6752e66b0e in QThreadPrivate::start (arg=0x1ba1900) at thread/qthread_unix.cpp:337
#11 0x00007f675206c6aa in start_thread (arg=0x7f6729394700) at pthread_create.c:333
#12 0x00007f67527f0eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f671bfff700 (LWP 5447)):
#0  0x00007f674ef4c7a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f674ef07852 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f674ef07e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f674ef07fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f67530fdc6c in QEventDispatcherGlib::processEvents (this=0x7f67140008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f67530a23e2 in QEventLoop::exec (this=this@entry=0x7f671bffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f6752e61b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f6754bf0f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f6752e66b0e in QThreadPrivate::start (arg=0x1c985c0) at thread/qthread_unix.cpp:337
#9  0x00007f675206c6aa in start_thread (arg=0x7f671bfff700) at pthread_create.c:333
#10 0x00007f67527f0eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f671affe700 (LWP 5448)):
#0  0x00007f674ef4c789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f674ef07a16 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f674ef07f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f674ef07fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f67530fdc6c in QEventDispatcherGlib::processEvents (this=0x7f670c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f67530a23e2 in QEventLoop::exec (this=this@entry=0x7f671affdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f6752e61b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f6754bf0f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f6752e66b0e in QThreadPrivate::start (arg=0x1d942a0) at thread/qthread_unix.cpp:337
#9  0x00007f675206c6aa in start_thread (arg=0x7f671affe700) at pthread_create.c:333
#10 0x00007f67527f0eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f67199c1700 (LWP 5449)):
#0  0x00007f674ef4c7a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f674ef07490 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f674ef07de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f674ef07fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f67530fdc6c in QEventDispatcherGlib::processEvents (this=0x7f67100008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f67530a23e2 in QEventLoop::exec (this=this@entry=0x7f67199c0de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f6752e61b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f6754bf0f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f6752e66b0e in QThreadPrivate::start (arg=0x1eaa060) at thread/qthread_unix.cpp:337
#9  0x00007f675206c6aa in start_thread (arg=0x7f67199c1700) at pthread_create.c:333
#10 0x00007f67527f0eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f67189c0700 (LWP 5450)):
#0  0x00007f67527e58dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f674ef07ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f674ef07fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f67530fdc6c in QEventDispatcherGlib::processEvents (this=0x7f67040008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f67530a23e2 in QEventLoop::exec (this=this@entry=0x7f67189bfde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f6752e61b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f6754bf0f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f6752e66b0e in QThreadPrivate::start (arg=0x1fab8f0) at thread/qthread_unix.cpp:337
#8  0x00007f675206c6aa in start_thread (arg=0x7f67189c0700) at pthread_create.c:333
#9  0x00007f67527f0eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f670b7ff700 (LWP 5451)):
#0  0x00007f674ef4c242 in g_private_get () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f674ef2ee00 in g_thread_self () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f674ef06ddc in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f674ef07d75 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f674ef07fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f67530fdc6c in QEventDispatcherGlib::processEvents (this=0x7f67000008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#6  0x00007f67530a23e2 in QEventLoop::exec (this=this@entry=0x7f670b7fede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f6752e61b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f6754bf0f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f6752e66b0e in QThreadPrivate::start (arg=0x208dda0) at thread/qthread_unix.cpp:337
#10 0x00007f675206c6aa in start_thread (arg=0x7f670b7ff700) at pthread_create.c:333
#11 0x00007f67527f0eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f670a7fe700 (LWP 5452)):
#0  0x00007f674ef4c789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f674ef078cc in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f674ef07e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f674ef07fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f67530fdc6c in QEventDispatcherGlib::processEvents (this=0x7f66f80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f67530a23e2 in QEventLoop::exec (this=this@entry=0x7f670a7fdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f6752e61b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f6754bf0f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f6752e66b0e in QThreadPrivate::start (arg=0x218c7a0) at thread/qthread_unix.cpp:337
#9  0x00007f675206c6aa in start_thread (arg=0x7f670a7fe700) at pthread_create.c:333
#10 0x00007f67527f0eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f6709515700 (LWP 5453)):
#0  0x00007f67527e149d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f674b4caf45 in ?? () from /usr/lib/nvidia-346/tls/libnvidia-tls.so.346.96
#2  0x00007f674ef4b2f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f674ef0796c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f674ef07e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f674ef07fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f67530fdc6c in QEventDispatcherGlib::processEvents (this=0x7f66fc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#7  0x00007f67530a23e2 in QEventLoop::exec (this=this@entry=0x7f6709514de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f6752e61b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#9  0x00007f6754bf0f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f6752e66b0e in QThreadPrivate::start (arg=0x22e72f0) at thread/qthread_unix.cpp:337
#11 0x00007f675206c6aa in start_thread (arg=0x7f6709515700) at pthread_create.c:333
#12 0x00007f67527f0eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f66f7fff700 (LWP 5454)):
#0  0x00007f67527e58dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f674ef07ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f674ef07fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f67530fdc6c in QEventDispatcherGlib::processEvents (this=0x7f66f00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f67530a23e2 in QEventLoop::exec (this=this@entry=0x7f66f7ffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f6752e61b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f6754bf0f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f6752e66b0e in QThreadPrivate::start (arg=0x23cddc0) at thread/qthread_unix.cpp:337
#8  0x00007f675206c6aa in start_thread (arg=0x7f66f7fff700) at pthread_create.c:333
#9  0x00007f67527f0eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f66f6ffe700 (LWP 5455)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f6756dac644 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f6756dac689 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f675206c6aa in start_thread (arg=0x7f66f6ffe700) at pthread_create.c:333
#4  0x00007f67527f0eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f66f67fd700 (LWP 5456)):
#0  0x00007f674ef4c7a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f674ef06e5e in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f674ef07d75 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f674ef07fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f67530fdc6c in QEventDispatcherGlib::processEvents (this=0x7f66680008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f67530a23e2 in QEventLoop::exec (this=this@entry=0x7f66f67fcde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f6752e61b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f6754bf0f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f6752e66b0e in QThreadPrivate::start (arg=0x24c7ae0) at thread/qthread_unix.cpp:337
#9  0x00007f675206c6aa in start_thread (arg=0x7f66f67fd700) at pthread_create.c:333
#10 0x00007f67527f0eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f666f518700 (LWP 5457)):
#0  0x00007f674ef4c789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f674ef078cc in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f674ef07e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f674ef07fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f67530fdc6c in QEventDispatcherGlib::processEvents (this=0x7f66640008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f67530a23e2 in QEventLoop::exec (this=this@entry=0x7f666f517d90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f6752e61b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f6757921b56 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f6752e66b0e in QThreadPrivate::start (arg=0x27fd630) at thread/qthread_unix.cpp:337
#9  0x00007f675206c6aa in start_thread (arg=0x7f666f518700) at pthread_create.c:333
#10 0x00007f67527f0eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f666ded1700 (LWP 5458)):
[KCrash Handler]
#6  __strstr_sse2_unaligned () at ../sysdeps/x86_64/multiarch/strstr-sse2-unaligned.S:40
#7  0x00007f675797556a in QSGRenderContext::initialize(QOpenGLContext*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f6757994459 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007f6752e66b0e in QThreadPrivate::start (arg=0x26e7ef0) at thread/qthread_unix.cpp:337
#10 0x00007f675206c6aa in start_thread (arg=0x7f666ded1700) at pthread_create.c:333
#11 0x00007f67527f0eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f6757c687c0 (LWP 5434)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f6752e67c6b in wait (time=18446744073709551615, this=0x2805260) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x26e7f30, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f6757995c48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f6757998a8b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f675799930a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f67533fa7b5 in QWindow::event (this=0x24dfb40, ev=<optimized out>) at kernel/qwindow.cpp:2051
#7  0x00007f67579cadd3 in QQuickWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x000000000043c3d2 in DesktopView::event (this=0x24dfb40, e=0x7fff23b02390) at ../../shell/desktopview.cpp:215
#9  0x00007f67539aeb2c in QApplicationPrivate::notify_helper (this=0x137dab0, receiver=0x24dfb40, e=0x7fff23b02390) at kernel/qapplication.cpp:3720
#10 0x00007f67539b4000 in QApplication::notify (this=0x7fff23b027f0, receiver=0x24dfb40, e=0x7fff23b02390) at kernel/qapplication.cpp:3503
#11 0x00007f67530a4c2b in QCoreApplication::notifyInternal (this=0x7fff23b027f0, receiver=receiver@entry=0x24dfb40, event=event@entry=0x7fff23b02390) at kernel/qcoreapplication.cpp:935
#12 0x00007f67533f2e86 in sendSpontaneousEvent (event=0x7fff23b02390, receiver=0x24dfb40) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#13 QGuiApplicationPrivate::processExposeEvent (e=0x25bfd20) at kernel/qguiapplication.cpp:2613
#14 0x00007f67533f3bbd in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x25bfd20) at kernel/qguiapplication.cpp:1638
#15 0x00007f67533d834f in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:572
#16 0x00007f6744436590 in userEventSourceDispatch (source=<optimized out>) at eventdispatchers/qeventdispatcher_glib.cpp:70
#17 0x00007f674ef07c3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f674ef07f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f674ef07fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f67530fdc57 in QEventDispatcherGlib::processEvents (this=0x13da7e0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#21 0x00007f67530a23e2 in QEventLoop::exec (this=this@entry=0x7fff23b02670, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#22 0x00007f67530aa02c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#23 0x00007f67533e931c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#24 0x00007f67539aa7a5 in QApplication::exec () at kernel/qapplication.cpp:2956
#25 0x0000000000430253 in main (argc=4, argv=<optimized out>) at ../../shell/main.cpp:154

Possible duplicates by query: bug 352474, bug 352107, bug 351265, bug 348812.

Reported using DrKonqi