Bug 398189

Summary: Plasma crashes after typing in password to KDE Wallet
Product: [Plasma] plasmashell Reporter: a.saoutkin
Component: generic-crashAssignee: Plasma Bugs List <plasma-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: crash CC: kde
Priority: NOR    
Version First Reported In: 5.12.6   
Target Milestone: 1.0   
Platform: Kubuntu   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description a.saoutkin 2018-09-03 10:47:07 UTC 
Application: plasmashell (5.12.6)

Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 4.15.0-33-generic x86_64
Distribution: Ubuntu 18.04.1 LTS

-- Information about the crash:
- What I was doing when the application crashed:
Recently typed password to KDE Wallet (correctly). This hasn't occured before.
- Unusual behavior I noticed:
KDE Plasma crashed (taskbar disappeared briefly, desktop folders disappeared, screensaver was still there). Plasma then relaunched (all came back).

-- 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 0x7f2f56e98800 (LWP 1256))]

Thread 16 (Thread 0x7f2e617fa700 (LWP 1740)):
#0  0x00007f2f4fd049f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5559db524d30) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2f4fd049f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5559db524ce0, cond=0x5559db524d08) at pthread_cond_wait.c:502
#2  0x00007f2f4fd049f3 in __pthread_cond_wait (cond=0x5559db524d08, mutex=0x5559db524ce0) at pthread_cond_wait.c:655
#3  0x00007f2f50b8359b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f2e96356ad5 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f2e9635aba8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f2e96355c8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f2e9635ac02 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f2e96355c8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f2e9635ac02 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f2e96355c8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f2e96358a6b in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f2f50b8216d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f2f4fcfe6db in start_thread (arg=0x7f2e617fa700) at pthread_create.c:463
#14 0x00007f2f5047888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f2e61ffb700 (LWP 1739)):
#0  0x00007f2f4fd049f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5559db524d30) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2f4fd049f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5559db524ce0, cond=0x5559db524d08) at pthread_cond_wait.c:502
#2  0x00007f2f4fd049f3 in __pthread_cond_wait (cond=0x5559db524d08, mutex=0x5559db524ce0) at pthread_cond_wait.c:655
#3  0x00007f2f50b8359b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f2e96356ad5 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f2e9635aba8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f2e96355c8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f2e9635ac02 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f2e96355c8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f2e9635ac02 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f2e96355c8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f2e9635ac02 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f2e96355c8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#13 0x00007f2e9635ac02 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#14 0x00007f2e96355c8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#15 0x00007f2e96358a6b in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#16 0x00007f2f50b8216d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f2f4fcfe6db in start_thread (arg=0x7f2e61ffb700) at pthread_create.c:463
#18 0x00007f2f5047888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f2e627fc700 (LWP 1738)):
#0  0x00007f2f4fd049f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5559db524d30) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2f4fd049f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5559db524ce0, cond=0x5559db524d08) at pthread_cond_wait.c:502
#2  0x00007f2f4fd049f3 in __pthread_cond_wait (cond=0x5559db524d08, mutex=0x5559db524ce0) at pthread_cond_wait.c:655
#3  0x00007f2f50b8359b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f2e96356ad5 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f2e9635aba8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f2e96355c8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f2e9635ac02 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f2e96355c8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f2e9635ac02 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f2e96355c8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f2e9635ac02 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f2e96355c8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#13 0x00007f2e96358a6b in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#14 0x00007f2f50b8216d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f2f4fcfe6db in start_thread (arg=0x7f2e627fc700) at pthread_create.c:463
#16 0x00007f2f5047888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f2e62ffd700 (LWP 1737)):
#0  0x00007f2f4fd049f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5559db524d30) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2f4fd049f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5559db524ce0, cond=0x5559db524d08) at pthread_cond_wait.c:502
#2  0x00007f2f4fd049f3 in __pthread_cond_wait (cond=0x5559db524d08, mutex=0x5559db524ce0) at pthread_cond_wait.c:655
#3  0x00007f2f50b8359b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f2e96356ad5 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f2e9635aba8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f2e96355c8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f2e96358a6b in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f2f50b8216d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f2f4fcfe6db in start_thread (arg=0x7f2e62ffd700) at pthread_create.c:463
#10 0x00007f2f5047888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f2e637fe700 (LWP 1736)):
#0  0x00007f2f4fd049f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5559db524d30) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2f4fd049f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5559db524ce0, cond=0x5559db524d08) at pthread_cond_wait.c:502
#2  0x00007f2f4fd049f3 in __pthread_cond_wait (cond=0x5559db524d08, mutex=0x5559db524ce0) at pthread_cond_wait.c:655
#3  0x00007f2f50b8359b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f2e96356ad5 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f2e9635aba8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f2e96355c8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f2e96358a6b in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f2f50b8216d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f2f4fcfe6db in start_thread (arg=0x7f2e637fe700) at pthread_create.c:463
#10 0x00007f2f5047888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f2e63fff700 (LWP 1735)):
#0  0x00007f2f4fd049f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5559db524d30) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2f4fd049f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5559db524ce0, cond=0x5559db524d08) at pthread_cond_wait.c:502
#2  0x00007f2f4fd049f3 in __pthread_cond_wait (cond=0x5559db524d08, mutex=0x5559db524ce0) at pthread_cond_wait.c:655
#3  0x00007f2f50b8359b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f2e96356ad5 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f2e9635aba8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f2e96355c8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f2e96358a6b in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f2f50b8216d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f2f4fcfe6db in start_thread (arg=0x7f2e63fff700) at pthread_create.c:463
#10 0x00007f2f5047888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f2e70b10700 (LWP 1734)):
#0  0x00007f2f4fd049f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5559db524d30) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2f4fd049f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5559db524ce0, cond=0x5559db524d08) at pthread_cond_wait.c:502
#2  0x00007f2f4fd049f3 in __pthread_cond_wait (cond=0x5559db524d08, mutex=0x5559db524ce0) at pthread_cond_wait.c:655
#3  0x00007f2f50b8359b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f2e96356ad5 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f2e9635aba8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f2e96355c8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f2e96358a6b in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f2f50b8216d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f2f4fcfe6db in start_thread (arg=0x7f2e70b10700) at pthread_create.c:463
#10 0x00007f2f5047888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f2e71311700 (LWP 1733)):
#0  0x00007f2f4fd049f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5559db524d30) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2f4fd049f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5559db524ce0, cond=0x5559db524d08) at pthread_cond_wait.c:502
#2  0x00007f2f4fd049f3 in __pthread_cond_wait (cond=0x5559db524d08, mutex=0x5559db524ce0) at pthread_cond_wait.c:655
#3  0x00007f2f50b8359b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f2e96356ad5 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f2e9635aba8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f2e96355c8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f2e96358a6b in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f2f50b8216d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f2f4fcfe6db in start_thread (arg=0x7f2e71311700) at pthread_create.c:463
#10 0x00007f2f5047888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f2e88a39700 (LWP 1554)):
#0  0x00007f2f5046bbf9 in __GI___poll (fds=0x7f2e84006070, nfds=1, timeout=3415552) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f2f4afd5439 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2f4afd554c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2f50db990b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f2f50d5e9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f2f50b7d22a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f2e8b395747 in KCupsConnection::run() () at /usr/lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007f2f50b8216d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f2f4fcfe6db in start_thread (arg=0x7f2e88a39700) at pthread_create.c:463
#9  0x00007f2f5047888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f2e9d03d700 (LWP 1399)):
#0  0x00007f2f5046bbf9 in __GI___poll (fds=0x7f2e98004f50, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f2f4afd5439 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2f4afd554c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2f50db990b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f2f50d5e9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f2f50b7d22a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f2f548892a6 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f2f50b8216d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f2f4fcfe6db in start_thread (arg=0x7f2e9d03d700) at pthread_create.c:463
#9  0x00007f2f5047888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f2f3093b700 (LWP 1336)):
#0  0x00007f2f4fd049f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f2f5685efb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2f4fd049f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f2f5685ef68, cond=0x7f2f5685ef90) at pthread_cond_wait.c:502
#2  0x00007f2f4fd049f3 in __pthread_cond_wait (cond=0x7f2f5685ef90, mutex=0x7f2f5685ef68) at pthread_cond_wait.c:655
#3  0x00007f2f565685f4 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#4  0x00007f2f56568639 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#5  0x00007f2f4fcfe6db in start_thread (arg=0x7f2f3093b700) at pthread_create.c:463
#6  0x00007f2f5047888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f2f32998700 (LWP 1323)):
#0  0x00007f2f4b01acf4 in g_mutex_unlock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f2f4afd5556 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2f50db990b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f2f50d5e9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f2f50b7d22a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f2f53cef6f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#6  0x00007f2f50b8216d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f2f4fcfe6db in start_thread (arg=0x7f2f32998700) at pthread_create.c:463
#8  0x00007f2f5047888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f2f38a38700 (LWP 1319)):
#0  0x00007f2f504670b4 in __GI___libc_read (fd=10, buf=0x7f2f38a37b70, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f2f4b019960 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2f4afd4f27 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2f4afd53e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f2f4afd554c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f2f50db990b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f2f50d5e9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f2f50b7d22a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f2f53cef6f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f2f50b8216d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f2f4fcfe6db in start_thread (arg=0x7f2f38a38700) at pthread_create.c:463
#11 0x00007f2f5047888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f2f3a47d700 (LWP 1279)):
#0  0x00007f2f4afd48e7 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f2f4afd536b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2f4afd554c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2f50db990b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f2f50d5e9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f2f50b7d22a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f2f51236d45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f2f50b8216d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f2f4fcfe6db in start_thread (arg=0x7f2f3a47d700) at pthread_create.c:463
#9  0x00007f2f5047888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f2f40bfe700 (LWP 1265)):
#0  0x00007f2f5046bbf9 in __GI___poll (fds=0x7f2f40bfdca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f2f55495747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f2f5549736a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f2f435972a9 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f2f50b8216d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f2f4fcfe6db in start_thread (arg=0x7f2f40bfe700) at pthread_create.c:463
#6  0x00007f2f5047888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f2f56e98800 (LWP 1256)):
[KCrash Handler]
#6  0x00007f2f53ba232e in QV4::QObjectWrapper::wrap(QV4::ExecutionEngine*, QObject*) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f2f53b9c66b in QV4::ExecutionEngine::fromVariant(QVariant const&) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f2f53c1e56b in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f2f53c1f290 in QV4::QObjectWrapper::getQmlProperty(QQmlContextData*, QV4::String*, QV4::QObjectWrapper::RevisionMode, bool*, bool) const () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f2f53c3a29f in QV4::Runtime::method_getProperty(QV4::ExecutionEngine*, QV4::Value const&, int) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#11 0x00007f2e7f1fca7b in  ()
#12 0x0000000000000000 in  ()
Comment 1 David Edmundson 2018-09-15 17:27:48 UTC 

*** This bug has been marked as a duplicate of bug 398677 ***