Application: plasmashell (5.9.5)

Qt Version: 5.7.1
Frameworks Version: 5.31.0
Operating System: Linux 4.10.0-42-generic x86_64
Distribution: Ubuntu 17.04

-- Information about the crash:
- What I was doing when the application crashed:
I closed one of some dolphin instances, which (if i remember right) had open a directory of an nfs4 mount.

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 0x7f1280361d80 (LWP 2018))]

Thread 21 (Thread 0x7f115d6f1700 (LWP 4820)):
#0  0x00007f1279470510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f127a5d8aeb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f127e0bf495 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007f127e0bfd8a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f127a5d7c38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f127946a6da in start_thread (arg=0x7f115d6f1700) at pthread_create.c:456
#6  0x00007f1279ee3d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 20 (Thread 0x7f115e6f2700 (LWP 4819)):
#0  0x00007f1279ed38ad in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f12720d5073 in  () at /usr/lib/nvidia-384/tls/libnvidia-tls.so.384.90
#2  0x00007f1274a11b30 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f12749cd042 in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f12749cd514 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f12749cd68c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f127a7fb0bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f127a7a4bea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f127a5d2f83 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f127d4bddf5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f127a5d7c38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f127946a6da in start_thread (arg=0x7f115e6f2700) at pthread_create.c:456
#12 0x00007f1279ee3d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 19 (Thread 0x7f1172592700 (LWP 4316)):
#0  0x00007f1279470510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f127a5d8aeb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f127e0bf495 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007f127e0bfd8a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f127a5d7c38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f127946a6da in start_thread (arg=0x7f1172592700) at pthread_create.c:456
#6  0x00007f1279ee3d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 18 (Thread 0x7f1170b82700 (LWP 4221)):
#0  0x00007f1279ed7d8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f126e0e4df1 in  () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#2  0x00007f126e0d6601 in pa_mainloop_poll () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007f126e0d6c9e in pa_mainloop_iterate () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007f126e0d6d50 in pa_mainloop_run () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007f126e0e4d39 in  () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007f126d3247d8 in  () at /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-10.0.so
#7  0x00007f127946a6da in start_thread (arg=0x7f1170b82700) at pthread_create.c:456
#8  0x00007f1279ee3d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 17 (Thread 0x7f115f7fa700 (LWP 4210)):
#0  0x00007f1274a12ed9 in g_mutex_lock () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f12749cd532 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f12749cd68c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f127a7fb0bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f127a7a4bea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f127a5d2f83 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f127d4bddf5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f127a5d7c38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f127946a6da in start_thread (arg=0x7f115f7fa700) at pthread_create.c:456
#9  0x00007f1279ee3d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 16 (Thread 0x7f1173dfa700 (LWP 3867)):
#0  0x00007f1279470510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f127a5d8aeb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f127e0bf495 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007f127e0bfd8a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f127a5d7c38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f127946a6da in start_thread (arg=0x7f1173dfa700) at pthread_create.c:456
#6  0x00007f1279ee3d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 15 (Thread 0x7f118a5ba700 (LWP 3697)):
#0  0x00007f1279470510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f127a5d8aeb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f127e0bf495 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007f127e0bfd8a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f127a5d7c38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f127946a6da in start_thread (arg=0x7f118a5ba700) at pthread_create.c:456
#6  0x00007f1279ee3d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 14 (Thread 0x7f1188bb2700 (LWP 3586)):
#0  0x00007f1279470510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f127a5d8aeb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f127e0bf495 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007f127e0bfd8a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f127a5d7c38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f127946a6da in start_thread (arg=0x7f1188bb2700) at pthread_create.c:456
#6  0x00007f1279ee3d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 13 (Thread 0x7f1189792700 (LWP 3573)):
#0  0x00007f1279470510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f127a5d8aeb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f127e0bf495 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007f127e0bfd8a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f127a5d7c38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f127946a6da in start_thread (arg=0x7f1189792700) at pthread_create.c:456
#6  0x00007f1279ee3d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 12 (Thread 0x7f118b0ea700 (LWP 3472)):
#0  0x00007f1279470510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f127a5d8aeb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f127e0bf495 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007f127e0bfd8a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f127a5d7c38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f127946a6da in start_thread (arg=0x7f118b0ea700) at pthread_create.c:456
#6  0x00007f1279ee3d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 11 (Thread 0x7f118bffa700 (LWP 3351)):
#0  0x00007f1279470510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f127a5d8aeb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f127e0bf495 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007f127e0bfd8a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f127a5d7c38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f127946a6da in start_thread (arg=0x7f118bffa700) at pthread_create.c:456
#6  0x00007f1279ee3d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 10 (Thread 0x7f119d29a700 (LWP 3019)):
#0  0x00007f1279470510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f127a5d8aeb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f127e0bf495 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007f127e0bfd8a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f127a5d7c38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f127946a6da in start_thread (arg=0x7f119d29a700) at pthread_create.c:456
#6  0x00007f1279ee3d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 9 (Thread 0x7f11a016a700 (LWP 3004)):
#0  0x00007f1279470510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f127a5d8aeb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f127e0bf495 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007f127e0bfd8a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f127a5d7c38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f127946a6da in start_thread (arg=0x7f11a016a700) at pthread_create.c:456
#6  0x00007f1279ee3d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 8 (Thread 0x7f11a8aa2700 (LWP 2899)):
#0  0x00007ffd18bdd949 in  ()
#1  0x00007ffd18bddbd9 in clock_gettime ()
#2  0x00007f1279ef2506 in __GI___clock_gettime (clock_id=1, tp=0x7f11a8aa19f0) at ../sysdeps/unix/clock_gettime.c:115
#3  0x00007f127a67cc41 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f127a7f8d39 in QTimerInfoList::updateCurrentTime() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f127a7f92e5 in QTimerInfoList::timerWait(timespec&) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f127a7fa924 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f12749cca6d in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f12749cd49b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f12749cd68c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f127a7fb0bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f127a7a4bea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f127a5d2f83 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f11aaffa5c7 in KCupsConnection::run() () at /usr/lib/x86_64-linux-gnu/libkcupslib.so
#14 0x00007f127a5d7c38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f127946a6da in start_thread (arg=0x7f11a8aa2700) at pthread_create.c:456
#16 0x00007f1279ee3d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 7 (Thread 0x7f11c371a700 (LWP 2512)):
#0  0x00007f1279470510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f127a5d8aeb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f127e0bf495 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007f127e0bfd8a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f127a5d7c38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f127946a6da in start_thread (arg=0x7f11c371a700) at pthread_create.c:456
#6  0x00007f1279ee3d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 6 (Thread 0x7f11c3f22700 (LWP 2511)):
#0  0x00007f1279ed38ad in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f12720d5073 in  () at /usr/lib/nvidia-384/tls/libnvidia-tls.so.384.90
#2  0x00007f1274a11b30 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f12749cd042 in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f12749cd514 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f12749cd68c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f127a7fb0bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f127a7a4bea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f127a5d2f83 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f127e0504c6 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007f127a5d7c38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f127946a6da in start_thread (arg=0x7f11c3f22700) at pthread_create.c:456
#12 0x00007f1279ee3d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 5 (Thread 0x7f1258f02700 (LWP 2466)):
#0  0x00007f1279470510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f127fceb2c4 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f127fceb309 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f127946a6da in start_thread (arg=0x7f1258f02700) at pthread_create.c:456
#4  0x00007f1279ee3d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 4 (Thread 0x7f125af92700 (LWP 2465)):
#0  0x00007f127a5d6aa0 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007f127a7fa80a in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f12749cca6d in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f12749cd49b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f12749cd68c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f127a7fb0bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f127a7a4bea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f127a5d2f83 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f127d4bddf5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f127a5d7c38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f127946a6da in start_thread (arg=0x7f125af92700) at pthread_create.c:456
#11 0x00007f1279ee3d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 3 (Thread 0x7f1260f42700 (LWP 2104)):
#0  0x00007f127a7f9298 in QTimerInfoList::repairTimersIfNeeded() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007f127a7f92f3 in QTimerInfoList::timerWait(timespec&) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f127a7fa68e in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f12749cca6d in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f12749cd49b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f12749cd68c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f127a7fb0bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f127a7a4bea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f127a5d2f83 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f127d4bddf5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f127a5d7c38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f127946a6da in start_thread (arg=0x7f1260f42700) at pthread_create.c:456
#12 0x00007f1279ee3d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 2 (Thread 0x7f126bc82700 (LWP 2036)):
#0  0x00007f1279ed7d8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f12749cd576 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f12749cd68c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f127a7fb0bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f127a7a4bea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f127a5d2f83 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f127ac135d5 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f127a5d7c38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f127946a6da in start_thread (arg=0x7f126bc82700) at pthread_create.c:456
#9  0x00007f1279ee3d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 1 (Thread 0x7f1280361d80 (LWP 2018)):
[KCrash Handler]
#6  0x00007f127a76d240 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f127a76d529 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f127a775429 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f127a7d2789 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f127a849784 in QAbstractItemModel::rowsRemoved(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f127a74e62b in QAbstractItemModel::endRemoveRows() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f11b312a5e8 in  () at /usr/lib/x86_64-linux-gnu/libtaskmanager.so.6
#13 0x00007f11b312d5e9 in  () at /usr/lib/x86_64-linux-gnu/libtaskmanager.so.6
#14 0x00007f127a7d2789 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f127a849714 in QAbstractItemModel::rowsAboutToBeRemoved(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007f127a74ded3 in QAbstractItemModel::beginRemoveRows(QModelIndex const&, int, int) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f127a772c05 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f127a7739c6 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f127a7754a8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007f127a7d2789 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007f127a84947c in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007f11bb2ecb42 in  () at /usr/lib/x86_64-linux-gnu/libKF5ItemModels.so.5
#23 0x00007f11bb2ee3f8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ItemModels.so.5
#24 0x00007f127a7d2789 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007f127a84947c in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007f127a766a42 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007f127a768688 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007f127a7d2789 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007f127a84947c in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007f11b3143e17 in TaskManager::XWindowTasksModel::Private::dataChanged(unsigned long long, QVector<int> const&) () at /usr/lib/x86_64-linux-gnu/libtaskmanager.so.6
#31 0x00007f11b3146302 in TaskManager::XWindowTasksModel::Private::windowChanged(unsigned long long, QFlags<NET::Property>, QFlags<NET::Property2>) () at /usr/lib/x86_64-linux-gnu/libtaskmanager.so.6
#32 0x00007f11b31463cb in  () at /usr/lib/x86_64-linux-gnu/libtaskmanager.so.6
#33 0x00007f127a7d2afe in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#34 0x00007f127cfd81a8 in KWindowSystem::windowChanged(unsigned long long, QFlags<NET::Property>, QFlags<NET::Property2>) () at /usr/lib/x86_64-linux-gnu/libKF5WindowSystem.so.5
#35 0x00007f1261364bce in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemX11Plugin.so
#36 0x00007f127a7a3d2f in QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#37 0x00007f126ab47694 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#38 0x00007f126ab48375 in QXcbConnection::processXcbEvents() () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#39 0x00007f127a7d3639 in QObject::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#40 0x00007f127b71635c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#41 0x00007f127b71db21 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#42 0x00007f127a7a6c00 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#43 0x00007f127a7a939d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#44 0x00007f127a7fac93 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#45 0x00007f12749cd377 in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f12749cd5e0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007f12749cd68c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#48 0x00007f127a7fb09f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#49 0x00007f127a7a4bea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#50 0x00007f127a7ad33c in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#51 0x000056148c0a20bf in  ()
#52 0x00007f1279dfb3f1 in __libc_start_main (main=0x56148c0a1560, argc=1, argv=0x7ffd18bc91c8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffd18bc91b8) at ../csu/libc-start.c:291
#53 0x000056148c0a243a in _start ()

Reported using DrKonqi