Bug 414129

Summary: Plasma blacked out, no wallpaper, no panel
Product: [Plasma] plasmashell Reporter: Germano Massullo (Thetra) <germano.massullo>
Component: generalAssignee: David Edmundson <kde>
Status: RESOLVED WORKSFORME    
Severity: normal CC: nate, plasma-bugs-null
Priority: NOR    
Version First Reported In: 5.17.2   
Target Milestone: 1.0   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: screenshot

Description Germano Massullo (Thetra) 2019-11-14 10:40:16 UTC 
Created attachment 123916 [details]
screenshot

Yesterday I locked the Plasma session and this morning when I unlocked it, I found Plasma session "blacked out" as you can see in the screenshoot (the image is made of two screens): panel on right screen disappeared, wallpapers disappeared

Plasma 5.17.2
KDE Frameworks 5.62.0
Qt 5.12.5 (compilato con 5.12.5)
Il sistema di finestre xcb

$ gdb plasmashell 2414
GNU gdb (GDB) Fedora 8.3-6.fc30
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Reading symbols from plasmashell...
Reading symbols from /usr/lib/debug/usr/bin/plasmashell-5.17.2-1.fc30.x86_64.debug...
Attaching to program: /usr/bin/plasmashell, process 2414

Missing separate debuginfo for /usr/lib64/qt5/plugins/kf5/urifilters/kshorturifilter.so
Try: dnf --enablerepo='*debug*' install /usr/lib/debug/.build-id/e5/5d3bf959c151bb942bab9d72dcb476f8ccd48f.debug

warning: Loadable section ".note.gnu.property" outside of ELF segments
Missing separate debuginfo for /usr/lib64/qt5/plugins/kf5/urifilters/kurisearchfilter.so
Try: dnf --enablerepo='*debug*' install /usr/lib/debug/.build-id/67/f37aaac90708c6175f2f34d3dfeab0eb489b1c.debug

warning: Loadable section ".note.gnu.property" outside of ELF segments
Missing separate debuginfo for /usr/lib64/qt5/plugins/kf5/urifilters/localdomainurifilter.so
Try: dnf --enablerepo='*debug*' install /usr/lib/debug/.build-id/2d/c70b8caca93aa1d5e6f26621f9d49ccbe2c0bc.debug

warning: Loadable section ".note.gnu.property" outside of ELF segments
Missing separate debuginfo for /usr/lib64/qt5/plugins/kf5/urifilters/fixhosturifilter.so
Try: dnf --enablerepo='*debug*' install /usr/lib/debug/.build-id/44/2e18d1f5d31b3d23359557fbdcad7813629e61.debug

warning: Loadable section ".note.gnu.property" outside of ELF segments
Missing separate debuginfo for /usr/lib64/qt5/plugins/kf5/urifilters/kuriikwsfilter.so
Try: dnf --enablerepo='*debug*' install /usr/lib/debug/.build-id/36/2f4802438ff6ade34e29ea489bf301029849c6.debug

warning: Loadable section ".note.gnu.property" outside of ELF segments
0x00007f641c0bdae7 in __GI___poll (fds=0x562eb83ad580, nfds=18, timeout=16) at ../sysdeps/unix/sysv/linux/poll.c:29
29        return SYSCALL_CANCEL (poll, fds, nfds, timeout);
(gdb) set height 0
(gdb) set print elements 0
(gdb) set print frame-arguments all
(gdb) thread apply all backtrace

Thread 29 (Thread 0x7f6342bfd700 (LWP 29650)):
#0  0x00007f641b91b3c5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x562eab5b4820) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f641b91b3c5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x562eab5b47d0, cond=0x562eab5b47f8) at pthread_cond_wait.c:502
#2  0x00007f641b91b3c5 in __pthread_cond_wait (cond=0x562eab5b47f8, mutex=0x562eab5b47d0) at pthread_cond_wait.c:655
#3  0x00007f641c450ff3 in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=<optimized out>, this=0x562eab5b47d0) at thread/qwaitcondition_unix.cpp:146
#4  0x00007f641c450ff3 in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x562ead4d8d90, deadline=<optimized out>) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f641c451081 in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x562ead4d8d98, mutex=mutex@entry=0x562ead4d8d90, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f641e0891b9 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x562ead4d8d88) at scenegraph/qsgthreadedrenderloop.cpp:245
#7  0x00007f641e0891b9 in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x562ead4d8d10) at scenegraph/qsgthreadedrenderloop.cpp:710
#8  0x00007f641e08945d in QSGRenderThread::run() (this=0x562ead4d8d10) at scenegraph/qsgthreadedrenderloop.cpp:739
#9  0x00007f641c44b4e6 in QThreadPrivate::start(void*) (arg=0x562ead4d8d10) at thread/qthread_unix.cpp:361
#10 0x00007f641b9154c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007f641c0c8553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 28 (Thread 0x7f634bfff700 (LWP 14721)):
#0  0x00007f641b91b3c5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x562eb6b8df74) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f641b91b3c5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x562eb6b8df20, cond=0x562eb6b8df48) at pthread_cond_wait.c:502
#2  0x00007f641b91b3c5 in __pthread_cond_wait (cond=0x562eb6b8df48, mutex=0x562eb6b8df20) at pthread_cond_wait.c:655
#3  0x00007f641c450ff3 in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=<optimized out>, this=0x562eb6b8df20) at thread/qwaitcondition_unix.cpp:146
#4  0x00007f641c450ff3 in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x562ead9001b0, deadline=<optimized out>) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f641c451081 in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x562ead9001b8, mutex=mutex@entry=0x562ead9001b0, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f641e0891b9 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x562ead9001a8) at scenegraph/qsgthreadedrenderloop.cpp:245
#7  0x00007f641e0891b9 in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x562ead900130) at scenegraph/qsgthreadedrenderloop.cpp:710
#8  0x00007f641e08945d in QSGRenderThread::run() (this=0x562ead900130) at scenegraph/qsgthreadedrenderloop.cpp:739
#9  0x00007f641c44b4e6 in QThreadPrivate::start(void*) (arg=0x562ead900130) at thread/qthread_unix.cpp:361
#10 0x00007f641b9154c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007f641c0c8553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 27 (Thread 0x7f6341e68700 (LWP 24402)):
#0  0x00007f641b91b3c5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x562eae5e51a0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f641b91b3c5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x562eae5e5150, cond=0x562eae5e5178) at pthread_cond_wait.c:502
#2  0x00007f641b91b3c5 in __pthread_cond_wait (cond=0x562eae5e5178, mutex=0x562eae5e5150) at pthread_cond_wait.c:655
#3  0x00007f641c450ff3 in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=<optimized out>, this=0x562eae5e5150) at thread/qwaitcondition_unix.cpp:146
#4  0x00007f641c450ff3 in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x562eb42296c0, deadline=<optimized out>) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f641c451081 in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x562eb42296c8, mutex=mutex@entry=0x562eb42296c0, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f641e0891b9 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x562eb42296b8) at scenegraph/qsgthreadedrenderloop.cpp:245
#7  0x00007f641e0891b9 in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x562eb4229640) at scenegraph/qsgthreadedrenderloop.cpp:710
#8  0x00007f641e08945d in QSGRenderThread::run() (this=0x562eb4229640) at scenegraph/qsgthreadedrenderloop.cpp:739
#9  0x00007f641c44b4e6 in QThreadPrivate::start(void*) (arg=0x562eb4229640) at thread/qthread_unix.cpp:361
#10 0x00007f641b9154c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007f641c0c8553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 26 (Thread 0x7f6313fff700 (LWP 31221)):
#0  0x00007f641b91b3c5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x562eaf7793b4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f641b91b3c5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x562eaf779360, cond=0x562eaf779388) at pthread_cond_wait.c:502
#2  0x00007f641b91b3c5 in __pthread_cond_wait (cond=0x562eaf779388, mutex=0x562eaf779360) at pthread_cond_wait.c:655
#3  0x00007f641c450ff3 in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=<optimized out>, this=0x562eaf779360) at thread/qwaitcondition_unix.cpp:146
#4  0x00007f641c450ff3 in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x562eb4ede6d0, deadline=<optimized out>) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f641c451081 in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x562eb4ede6d8, mutex=mutex@entry=0x562eb4ede6d0, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f641e0891b9 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x562eb4ede6c8) at scenegraph/qsgthreadedrenderloop.cpp:245
#7  0x00007f641e0891b9 in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x562eb4ede650) at scenegraph/qsgthreadedrenderloop.cpp:710
#8  0x00007f641e08945d in QSGRenderThread::run() (this=0x562eb4ede650) at scenegraph/qsgthreadedrenderloop.cpp:739
#9  0x00007f641c44b4e6 in QThreadPrivate::start(void*) (arg=0x562eb4ede650) at thread/qthread_unix.cpp:361
#10 0x00007f641b9154c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007f641c0c8553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 25 (Thread 0x7f63437fe700 (LWP 31218)):
#0  0x00007f641b91b3c5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x562eab3e6224) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f641b91b3c5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x562eab3e61d0, cond=0x562eab3e61f8) at pthread_cond_wait.c:502
#2  0x00007f641b91b3c5 in __pthread_cond_wait (cond=0x562eab3e61f8, mutex=0x562eab3e61d0) at pthread_cond_wait.c:655
#3  0x00007f641c450ff3 in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=<optimized out>, this=0x562eab3e61d0) at thread/qwaitcondition_unix.cpp:146
#4  0x00007f641c450ff3 in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x562eaf416fe0, deadline=<optimized out>) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f641c451081 in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x562eaf416fe8, mutex=mutex@entry=0x562eaf416fe0, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f641e0891b9 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x562eaf416fd8) at scenegraph/qsgthreadedrenderloop.cpp:245
#7  0x00007f641e0891b9 in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x562eaf416f60) at scenegraph/qsgthreadedrenderloop.cpp:710
#8  0x00007f641e08945d in QSGRenderThread::run() (this=0x562eaf416f60) at scenegraph/qsgthreadedrenderloop.cpp:739
#9  0x00007f641c44b4e6 in QThreadPrivate::start(void*) (arg=0x562eaf416f60) at thread/qthread_unix.cpp:361
#10 0x00007f641b9154c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007f641c0c8553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7f63f89d9700 (LWP 31216)):
#0  0x00007f641b91b3c5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x562eb49e5d24) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f641b91b3c5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x562eb49e5cd0, cond=0x562eb49e5cf8) at pthread_cond_wait.c:502
#2  0x00007f641b91b3c5 in __pthread_cond_wait (cond=0x562eb49e5cf8, mutex=0x562eb49e5cd0) at pthread_cond_wait.c:655
#3  0x00007f641c450ff3 in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=<optimized out>, this=0x562eb49e5cd0) at thread/qwaitcondition_unix.cpp:146
#4  0x00007f641c450ff3 in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x562ebe28c120, deadline=<optimized out>) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f641c451081 in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x562ebe28c128, mutex=mutex@entry=0x562ebe28c120, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f641e0891b9 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x562ebe28c118) at scenegraph/qsgthreadedrenderloop.cpp:245
#7  0x00007f641e0891b9 in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x562ebe28c0a0) at scenegraph/qsgthreadedrenderloop.cpp:710
#8  0x00007f641e08945d in QSGRenderThread::run() (this=0x562ebe28c0a0) at scenegraph/qsgthreadedrenderloop.cpp:739
#9  0x00007f641c44b4e6 in QThreadPrivate::start(void*) (arg=0x562ebe28c0a0) at thread/qthread_unix.cpp:361
#10 0x00007f641b9154c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007f641c0c8553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7f634b5ff700 (LWP 15926)):
#0  0x00007f641b91b3c5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x562eb25217b4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f641b91b3c5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x562eb2521760, cond=0x562eb2521788) at pthread_cond_wait.c:502
#2  0x00007f641b91b3c5 in __pthread_cond_wait (cond=0x562eb2521788, mutex=0x562eb2521760) at pthread_cond_wait.c:655
#3  0x00007f641c450ff3 in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=<optimized out>, this=0x562eb2521760) at thread/qwaitcondition_unix.cpp:146
#4  0x00007f641c450ff3 in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x562eb4ac32f0, deadline=<optimized out>) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f641c451081 in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x562eb4ac32f8, mutex=mutex@entry=0x562eb4ac32f0, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f641e0891b9 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x562eb4ac32e8) at scenegraph/qsgthreadedrenderloop.cpp:245
#7  0x00007f641e0891b9 in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x562eb4ac3270) at scenegraph/qsgthreadedrenderloop.cpp:710
#8  0x00007f641e08945d in QSGRenderThread::run() (this=0x562eb4ac3270) at scenegraph/qsgthreadedrenderloop.cpp:739
#9  0x00007f641c44b4e6 in QThreadPrivate::start(void*) (arg=0x562eb4ac3270) at thread/qthread_unix.cpp:361
#10 0x00007f641b9154c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007f641c0c8553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7f634ac8c700 (LWP 13116)):
#0  0x00007f641b91b3c5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x562eb6bee6c4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f641b91b3c5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x562eb6bee670, cond=0x562eb6bee698) at pthread_cond_wait.c:502
#2  0x00007f641b91b3c5 in __pthread_cond_wait (cond=0x562eb6bee698, mutex=0x562eb6bee670) at pthread_cond_wait.c:655
#3  0x00007f641c450ff3 in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=<optimized out>, this=0x562eb6bee670) at thread/qwaitcondition_unix.cpp:146
#4  0x00007f641c450ff3 in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x562eb6de6d50, deadline=<optimized out>) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f641c451081 in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x562eb6de6d58, mutex=mutex@entry=0x562eb6de6d50, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f641e0891b9 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x562eb6de6d48) at scenegraph/qsgthreadedrenderloop.cpp:245
#7  0x00007f641e0891b9 in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x562eb6de6cd0) at scenegraph/qsgthreadedrenderloop.cpp:710
#8  0x00007f641e08945d in QSGRenderThread::run() (this=0x562eb6de6cd0) at scenegraph/qsgthreadedrenderloop.cpp:739
#9  0x00007f641c44b4e6 in QThreadPrivate::start(void*) (arg=0x562eb6de6cd0) at thread/qthread_unix.cpp:361
#10 0x00007f641b9154c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007f641c0c8553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7f6318a2d700 (LWP 11794)):
#0  0x00007f641b91b3c5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x562eab3df460) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f641b91b3c5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x562eab3df410, cond=0x562eab3df438) at pthread_cond_wait.c:502
#2  0x00007f641b91b3c5 in __pthread_cond_wait (cond=0x562eab3df438, mutex=0x562eab3df410) at pthread_cond_wait.c:655
#3  0x00007f641c450ff3 in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=<optimized out>, this=0x562eab3df410) at thread/qwaitcondition_unix.cpp:146
#4  0x00007f641c450ff3 in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x562eb87c5630, deadline=<optimized out>) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f641c451081 in QWaitCondition::wait(QMutex*, unsigned long) (this=0x562eb6a856b8, mutex=0x562eb87c5630, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f63563cfe1f in ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked(ThreadWeaver::Thread*) (this=this@entry=0x562eb4244020, th=<optimized out>) at /usr/src/debug/kf5-threadweaver-5.62.0-1.1.fc30.x86_64/src/weaver.cpp:594
#7  0x00007f63563d0ba0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) (this=0x562eb4244020, th=<optimized out>, th@entry=0x562eb82cfe90, threadWasBusy=threadWasBusy@entry=true, suspendIfInactive=suspendIfInactive@entry=false, justReturning=justReturning@entry=false) at /usr/src/debug/kf5-threadweaver-5.62.0-1.1.fc30.x86_64/src/weaver.cpp:554
#8  0x00007f63563d484e in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) (this=0x562eb8214f30, th=0x562eb82cfe90, wasBusy=<optimized out>) at /usr/src/debug/kf5-threadweaver-5.62.0-1.1.fc30.x86_64/src/workinghardstate.cpp:66
#9  0x00007f63563cfd72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) (this=<optimized out>, th=0x562eb82cfe90, wasBusy=<optimized out>) at /usr/src/debug/kf5-threadweaver-5.62.0-1.1.fc30.x86_64/src/weaver.cpp:568
#10 0x00007f63563d2803 in ThreadWeaver::Thread::run() (this=0x562eb82cfe90) at /usr/src/debug/kf5-threadweaver-5.62.0-1.1.fc30.x86_64/src/thread.cpp:103
#11 0x00007f641c44b4e6 in QThreadPrivate::start(void*) (arg=0x562eb82cfe90) at thread/qthread_unix.cpp:361
#12 0x00007f641b9154c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#13 0x00007f641c0c8553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7f631922e700 (LWP 11793)):
#0  0x00007f641b91b3c5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x562eab3df460) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f641b91b3c5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x562eab3df410, cond=0x562eab3df438) at pthread_cond_wait.c:502
#2  0x00007f641b91b3c5 in __pthread_cond_wait (cond=0x562eab3df438, mutex=0x562eab3df410) at pthread_cond_wait.c:655
#3  0x00007f641c450ff3 in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=<optimized out>, this=0x562eab3df410) at thread/qwaitcondition_unix.cpp:146
#4  0x00007f641c450ff3 in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x562eb87c5630, deadline=<optimized out>) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f641c451081 in QWaitCondition::wait(QMutex*, unsigned long) (this=0x562eb6a856b8, mutex=0x562eb87c5630, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f63563cfe1f in ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked(ThreadWeaver::Thread*) (this=this@entry=0x562eb4244020, th=<optimized out>) at /usr/src/debug/kf5-threadweaver-5.62.0-1.1.fc30.x86_64/src/weaver.cpp:594
#7  0x00007f63563d0ba0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) (this=0x562eb4244020, th=<optimized out>, th@entry=0x562eb80a8ba0, threadWasBusy=threadWasBusy@entry=true, suspendIfInactive=suspendIfInactive@entry=false, justReturning=justReturning@entry=false) at /usr/src/debug/kf5-threadweaver-5.62.0-1.1.fc30.x86_64/src/weaver.cpp:554
#8  0x00007f63563d484e in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) (this=0x562eb8214f30, th=0x562eb80a8ba0, wasBusy=<optimized out>) at /usr/src/debug/kf5-threadweaver-5.62.0-1.1.fc30.x86_64/src/workinghardstate.cpp:66
#9  0x00007f63563cfd72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) (this=<optimized out>, th=0x562eb80a8ba0, wasBusy=<optimized out>) at /usr/src/debug/kf5-threadweaver-5.62.0-1.1.fc30.x86_64/src/weaver.cpp:568
#10 0x00007f63563d2803 in ThreadWeaver::Thread::run() (this=0x562eb80a8ba0) at /usr/src/debug/kf5-threadweaver-5.62.0-1.1.fc30.x86_64/src/thread.cpp:103
#11 0x00007f641c44b4e6 in QThreadPrivate::start(void*) (arg=0x562eb80a8ba0) at thread/qthread_unix.cpp:361
#12 0x00007f641b9154c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#13 0x00007f641c0c8553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7f6319a2f700 (LWP 11792)):
#0  0x00007f641b91b3c5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x562eab3df460) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f641b91b3c5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x562eab3df410, cond=0x562eab3df438) at pthread_cond_wait.c:502
#2  0x00007f641b91b3c5 in __pthread_cond_wait (cond=0x562eab3df438, mutex=0x562eab3df410) at pthread_cond_wait.c:655
#3  0x00007f641c450ff3 in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=<optimized out>, this=0x562eab3df410) at thread/qwaitcondition_unix.cpp:146
#4  0x00007f641c450ff3 in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x562eb87c5630, deadline=<optimized out>) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f641c451081 in QWaitCondition::wait(QMutex*, unsigned long) (this=0x562eb6a856b8, mutex=0x562eb87c5630, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f63563cfe1f in ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked(ThreadWeaver::Thread*) (this=this@entry=0x562eb4244020, th=<optimized out>) at /usr/src/debug/kf5-threadweaver-5.62.0-1.1.fc30.x86_64/src/weaver.cpp:594
#7  0x00007f63563d0ba0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) (this=0x562eb4244020, th=<optimized out>, th@entry=0x562eb8323e10, threadWasBusy=threadWasBusy@entry=true, suspendIfInactive=suspendIfInactive@entry=false, justReturning=justReturning@entry=false) at /usr/src/debug/kf5-threadweaver-5.62.0-1.1.fc30.x86_64/src/weaver.cpp:554
#8  0x00007f63563d484e in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) (this=0x562eb8214f30, th=0x562eb8323e10, wasBusy=<optimized out>) at /usr/src/debug/kf5-threadweaver-5.62.0-1.1.fc30.x86_64/src/workinghardstate.cpp:66
#9  0x00007f63563cfd72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) (this=<optimized out>, th=0x562eb8323e10, wasBusy=<optimized out>) at /usr/src/debug/kf5-threadweaver-5.62.0-1.1.fc30.x86_64/src/weaver.cpp:568
#10 0x00007f63563d2803 in ThreadWeaver::Thread::run() (this=0x562eb8323e10) at /usr/src/debug/kf5-threadweaver-5.62.0-1.1.fc30.x86_64/src/thread.cpp:103
#11 0x00007f641c44b4e6 in QThreadPrivate::start(void*) (arg=0x562eb8323e10) at thread/qthread_unix.cpp:361
#12 0x00007f641b9154c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#13 0x00007f641c0c8553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7f6354c52700 (LWP 11791)):
#0  0x00007f641b91b3c5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x562eab3df460) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f641b91b3c5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x562eab3df410, cond=0x562eab3df438) at pthread_cond_wait.c:502
#2  0x00007f641b91b3c5 in __pthread_cond_wait (cond=0x562eab3df438, mutex=0x562eab3df410) at pthread_cond_wait.c:655
#3  0x00007f641c450ff3 in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=<optimized out>, this=0x562eab3df410) at thread/qwaitcondition_unix.cpp:146
#4  0x00007f641c450ff3 in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x562eb87c5630, deadline=<optimized out>) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f641c451081 in QWaitCondition::wait(QMutex*, unsigned long) (this=0x562eb6a856b8, mutex=0x562eb87c5630, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f63563cfe1f in ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked(ThreadWeaver::Thread*) (this=this@entry=0x562eb4244020, th=<optimized out>) at /usr/src/debug/kf5-threadweaver-5.62.0-1.1.fc30.x86_64/src/weaver.cpp:594
#7  0x00007f63563d0ba0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) (this=0x562eb4244020, th=<optimized out>, th@entry=0x562eab3f5950, threadWasBusy=threadWasBusy@entry=false, suspendIfInactive=suspendIfInactive@entry=false, justReturning=justReturning@entry=false) at /usr/src/debug/kf5-threadweaver-5.62.0-1.1.fc30.x86_64/src/weaver.cpp:554
#8  0x00007f63563d484e in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) (this=0x562eb8214f30, th=0x562eab3f5950, wasBusy=<optimized out>) at /usr/src/debug/kf5-threadweaver-5.62.0-1.1.fc30.x86_64/src/workinghardstate.cpp:66
#9  0x00007f63563cfd72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) (this=<optimized out>, th=0x562eab3f5950, wasBusy=<optimized out>) at /usr/src/debug/kf5-threadweaver-5.62.0-1.1.fc30.x86_64/src/weaver.cpp:568
#10 0x00007f63563d48a9 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) (this=0x562eb8214f30, th=0x562eab3f5950, wasBusy=<optimized out>) at /usr/src/debug/kf5-threadweaver-5.62.0-1.1.fc30.x86_64/src/workinghardstate.cpp:73
#11 0x00007f63563cfd72 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) (this=<optimized out>, th=0x562eab3f5950, wasBusy=<optimized out>) at /usr/src/debug/kf5-threadweaver-5.62.0-1.1.fc30.x86_64/src/weaver.cpp:568
#12 0x00007f63563d2803 in ThreadWeaver::Thread::run() (this=0x562eab3f5950) at /usr/src/debug/kf5-threadweaver-5.62.0-1.1.fc30.x86_64/src/thread.cpp:103
#13 0x00007f641c44b4e6 in QThreadPrivate::start(void*) (arg=0x562eab3f5950) at thread/qthread_unix.cpp:361
#14 0x00007f641b9154c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#15 0x00007f641c0c8553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7f6327e66700 (LWP 3663)):
#0  0x00007f641b91b3c5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x562eb82c2c20) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f641b91b3c5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x562eb82c2bd0, cond=0x562eb82c2bf8) at pthread_cond_wait.c:502
#2  0x00007f641b91b3c5 in __pthread_cond_wait (cond=0x562eb82c2bf8, mutex=0x562eb82c2bd0) at pthread_cond_wait.c:655
#3  0x00007f641c450ff3 in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=<optimized out>, this=0x562eb82c2bd0) at thread/qwaitcondition_unix.cpp:146
#4  0x00007f641c450ff3 in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x562eb24b2b60, deadline=<optimized out>) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f641c451081 in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x562eb24b2b68, mutex=mutex@entry=0x562eb24b2b60, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f641e0891b9 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x562eb24b2b58) at scenegraph/qsgthreadedrenderloop.cpp:245
#7  0x00007f641e0891b9 in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x562eb24b2ae0) at scenegraph/qsgthreadedrenderloop.cpp:710
#8  0x00007f641e08945d in QSGRenderThread::run() (this=0x562eb24b2ae0) at scenegraph/qsgthreadedrenderloop.cpp:739
#9  0x00007f641c44b4e6 in QThreadPrivate::start(void*) (arg=0x562eb24b2ae0) at thread/qthread_unix.cpp:361
#10 0x00007f641b9154c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007f641c0c8553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f6343fff700 (LWP 3532)):
#0  0x00007f641b91b3c5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x562eb547d250) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f641b91b3c5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x562eb547d200, cond=0x562eb547d228) at pthread_cond_wait.c:502
#2  0x00007f641b91b3c5 in __pthread_cond_wait (cond=0x562eb547d228, mutex=0x562eb547d200) at pthread_cond_wait.c:655
#3  0x00007f641c450ff3 in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=<optimized out>, this=0x562eb547d200) at thread/qwaitcondition_unix.cpp:146
#4  0x00007f641c450ff3 in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x562ebed50fe0, deadline=<optimized out>) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f641c451081 in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x562ebed50fe8, mutex=mutex@entry=0x562ebed50fe0, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f641e0891b9 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x562ebed50fd8) at scenegraph/qsgthreadedrenderloop.cpp:245
#7  0x00007f641e0891b9 in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x562ebed50f60) at scenegraph/qsgthreadedrenderloop.cpp:710
#8  0x00007f641e08945d in QSGRenderThread::run() (this=0x562ebed50f60) at scenegraph/qsgthreadedrenderloop.cpp:739
#9  0x00007f641c44b4e6 in QThreadPrivate::start(void*) (arg=0x562ebed50f60) at thread/qthread_unix.cpp:361
#10 0x00007f641b9154c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007f641c0c8553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f63561e3700 (LWP 2995)):
#0  0x00007f641c0bdae7 in __GI___poll (fds=0x562eb24e6a80, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f641ac161ce in g_main_context_poll (priority=<optimized out>, n_fds=2, fds=0x562eb24e6a80, timeout=<optimized out>, context=0x562eb24e3640) at ../glib/gmain.c:4228
#2  0x00007f641ac161ce in g_main_context_iterate (context=0x562eb24e3640, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3922
#3  0x00007f641ac16593 in g_main_loop_run (loop=0x562eb24e3730) at ../glib/gmain.c:4123
#4  0x00007f63f052dd9a in gdbus_shared_thread_func (user_data=0x562eb24e3610) at ../gio/gdbusprivate.c:275
#5  0x00007f641ac3f4c2 in g_thread_proxy (data=0x562eaf2858f0) at ../glib/gthread.c:805
#6  0x00007f641b9154c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#7  0x00007f641c0c8553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f6340812700 (LWP 2994)):
#0  0x00007f641c0bdae7 in __GI___poll (fds=0x562eb5489020, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f641ac161ce in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x562eb5489020, timeout=<optimized out>, context=0x562eb5488f00) at ../glib/gmain.c:4228
#2  0x00007f641ac161ce in g_main_context_iterate (context=context@entry=0x562eb5488f00, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3922
#3  0x00007f641ac16303 in g_main_context_iteration (context=0x562eb5488f00, may_block=may_block@entry=1) at ../glib/gmain.c:3988
#4  0x00007f641ac16351 in glib_worker_main (data=<optimized out>) at ../glib/gmain.c:5868
#5  0x00007f641ac3f4c2 in g_thread_proxy (data=0x562eaf285850) at ../glib/gthread.c:805
#6  0x00007f641b9154c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#7  0x00007f641c0c8553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f63411c0700 (LWP 2991)):
#0  0x00007f641b91b3c5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x562eabb42974) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f641b91b3c5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x562eabb42920, cond=0x562eabb42948) at pthread_cond_wait.c:502
#2  0x00007f641b91b3c5 in __pthread_cond_wait (cond=0x562eabb42948, mutex=0x562eabb42920) at pthread_cond_wait.c:655
#3  0x00007f641c450ff3 in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=<optimized out>, this=0x562eabb42920) at thread/qwaitcondition_unix.cpp:146
#4  0x00007f641c450ff3 in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x562eabbfe170, deadline=<optimized out>) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f641c451081 in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x562eabbfe178, mutex=mutex@entry=0x562eabbfe170, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#6  0x00007f641e0891b9 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x562eabbfe168) at scenegraph/qsgthreadedrenderloop.cpp:245
#7  0x00007f641e0891b9 in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x562eabbfe0f0) at scenegraph/qsgthreadedrenderloop.cpp:710
#8  0x00007f641e08945d in QSGRenderThread::run() (this=0x562eabbfe0f0) at scenegraph/qsgthreadedrenderloop.cpp:739
#9  0x00007f641c44b4e6 in QThreadPrivate::start(void*) (arg=0x562eabbfe0f0) at thread/qthread_unix.cpp:361
#10 0x00007f641b9154c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007f641c0c8553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f632349d700 (LWP 2966)):
#0  0x00007f641c0bdae7 in __GI___poll (fds=0x7f632c10ace0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f641ac161ce in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f632c10ace0, timeout=<optimized out>, context=0x7f632c0fea10) at ../glib/gmain.c:4228
#2  0x00007f641ac161ce in g_main_context_iterate (context=context@entry=0x7f632c0fea10, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3922
#3  0x00007f641ac16303 in g_main_context_iteration (context=0x7f632c0fea10, may_block=may_block@entry=1) at ../glib/gmain.c:3988
#4  0x00007f641c647cb5 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f632c0fba00, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#5  0x00007f641c5f1ceb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f632349cda0, flags={i = 36}, flags@entry={i = 0}) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6  0x00007f641c44a395 in QThread::exec() (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7  0x00007f641c44b4e6 in QThreadPrivate::start(void*) (arg=0x562eb28d5020) at thread/qthread_unix.cpp:361
#8  0x00007f641b9154c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007f641c0c8553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f6348daa700 (LWP 2941)):
#0  0x00007f641c0bdae7 in __GI___poll (fds=0x7f633c004a60, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f641ac161ce in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f633c004a60, timeout=<optimized out>, context=0x7f633c000bf0) at ../glib/gmain.c:4228
#2  0x00007f641ac161ce in g_main_context_iterate (context=context@entry=0x7f633c000bf0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3922
#3  0x00007f641ac16303 in g_main_context_iteration (context=0x7f633c000bf0, may_block=may_block@entry=1) at ../glib/gmain.c:3988
#4  0x00007f641c647cb5 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f633c000b20, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#5  0x00007f641c5f1ceb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f6348da9da0, flags={i = 36}, flags@entry={i = 0}) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6  0x00007f641c44a395 in QThread::exec() (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7  0x00007f641c44b4e6 in QThreadPrivate::start(void*) (arg=0x562eaf2f9580) at thread/qthread_unix.cpp:361
#8  0x00007f641b9154c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007f641c0c8553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f63495cf700 (LWP 2940)):
#0  0x00007f641c0bdae7 in __GI___poll (fds=0x7f63440060c0, nfds=1, timeout=3499985) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f641ac161ce in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f63440060c0, timeout=<optimized out>, context=0x7f6344000bf0) at ../glib/gmain.c:4228
#2  0x00007f641ac161ce in g_main_context_iterate (context=context@entry=0x7f6344000bf0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3922
#3  0x00007f641ac16303 in g_main_context_iteration (context=0x7f6344000bf0, may_block=may_block@entry=1) at ../glib/gmain.c:3988
#4  0x00007f641c647cb5 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f6344000b20, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#5  0x00007f641c5f1ceb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f63495ced60, flags={i = 36}, flags@entry={i = 0}) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6  0x00007f641c44a395 in QThread::exec() (this=this@entry=0x562eaf5e2fe0) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7  0x00007f6349c4eb3c in KCupsConnection::run() (this=0x562eaf5e2fe0) at /usr/src/debug/kde-print-manager-18.12.2-1.fc30.x86_64/libkcups/KCupsConnection.cpp:304
#8  0x00007f641c44b4e6 in QThreadPrivate::start(void*) (arg=0x562eaf5e2fe0) at thread/qthread_unix.cpp:361
#9  0x00007f641b9154c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#10 0x00007f641c0c8553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f6357011700 (LWP 2850)):
#0  0x00007f641c0bdae7 in __GI___poll (fds=0x7f635002f640, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f641ac161ce in g_main_context_poll (priority=<optimized out>, n_fds=2, fds=0x7f635002f640, timeout=<optimized out>, context=0x7f6350000bf0) at ../glib/gmain.c:4228
#2  0x00007f641ac161ce in g_main_context_iterate (context=context@entry=0x7f6350000bf0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3922
#3  0x00007f641ac16303 in g_main_context_iteration (context=0x7f6350000bf0, may_block=may_block@entry=1) at ../glib/gmain.c:3988
#4  0x00007f641c647cb5 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f6350000b20, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#5  0x00007f641c5f1ceb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f6357010d60, flags={i = 36}, flags@entry={i = 0}) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6  0x00007f641c44a395 in QThread::exec() (this=this@entry=0x562eabda5930) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7  0x00007f641dffce8a in QQuickPixmapReader::run() (this=0x562eabda5930) at util/qquickpixmapcache.cpp:953
#8  0x00007f641c44b4e6 in QThreadPrivate::start(void*) (arg=0x562eabda5930) at thread/qthread_unix.cpp:361
#9  0x00007f641b9154c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#10 0x00007f641c0c8553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f63e500b700 (LWP 2847)):
#0  0x00007f641b91b3c5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x7f63e7fe9f30 <bmalloc::PerProcess<bmalloc::Heap>::s_memory+3120>) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f641b91b3c5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x562eaea1ebf0, cond=0x7f63e7fe9f08 <bmalloc::PerProcess<bmalloc::Heap>::s_memory+3080>) at pthread_cond_wait.c:502
#2  0x00007f641b91b3c5 in __pthread_cond_wait (cond=0x7f63e7fe9f08 <bmalloc::PerProcess<bmalloc::Heap>::s_memory+3080>, mutex=0x562eaea1ebf0) at pthread_cond_wait.c:655
#3  0x00007f641c263950 in __gthread_cond_wait (__mutex=<optimized out>, __cond=0x7f63e7fe9f08 <bmalloc::PerProcess<bmalloc::Heap>::s_memory+3080>) at /usr/src/debug/gcc-9.2.1-1.fc30.x86_64/obj-x86_64-redhat-linux/x86_64-redhat-linux/libstdc++-v3/include/x86_64-redhat-linux/bits/gthr-default.h:865
#4  0x00007f641c263950 in std::condition_variable::wait(std::unique_lock<std::mutex>&) (this=this@entry=0x7f63e7fe9f08 <bmalloc::PerProcess<bmalloc::Heap>::s_memory+3080>, __lock=@0x7f63e500adb0: {_M_device = 0x562eaea1ebf0, _M_owns = true}) at ../../../../../libstdc++-v3/src/c++11/condition_variable.cc:53
#5  0x00007f63e74e7491 in std::_V2::condition_variable_any::wait<std::unique_lock<bmalloc::Mutex> >(std::unique_lock<bmalloc::Mutex>&) (__lock=<synthetic pointer>: <optimized out>, this=<optimized out>) at /usr/include/c++/9/bits/unique_lock.h:112
#6  0x00007f63e74e7491 in std::_V2::condition_variable_any::wait<std::unique_lock<bmalloc::Mutex>, bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadRunLoop()::{lambda()#1}>(std::unique_lock<bmalloc::Mutex>&, bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadRunLoop()::{lambda()#1}) (__p=<optimized out>, __lock=<optimized out>, this=<optimized out>) at /usr/include/c++/9/condition_variable:282
#7  0x00007f63e74e7491 in bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadRunLoop() (this=0x7f63e7fe9f00 <bmalloc::PerProcess<bmalloc::Heap>::s_memory+3072>) at /usr/src/debug/qt5-qtwebkit-5.212.0-0.37.alpha2.fc30.x86_64/Source/bmalloc/bmalloc/AsyncTask.h:126
#8  0x00007f63e74e75cf in bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadEntryPoint(bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>*) (asyncTask=<optimized out>) at /usr/src/debug/qt5-qtwebkit-5.212.0-0.37.alpha2.fc30.x86_64/Source/bmalloc/bmalloc/AsyncTask.h:104
#9  0x00007f641c2696f4 in std::execute_native_thread_routine(void*) (__p=0x562eaea1e760) at ../../../../../libstdc++-v3/src/c++11/thread.cc:80
#10 0x00007f641b9154c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007f641c0c8553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f63f271c700 (LWP 2819)):
#0  0x00007f641b91b3c5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x7f63fbf83478 <QTWTF::pageheap_memory+57592>) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f641b91b3c5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f63fbf83428 <QTWTF::pageheap_memory+57512>, cond=0x7f63fbf83450 <QTWTF::pageheap_memory+57552>) at pthread_cond_wait.c:502
#2  0x00007f641b91b3c5 in __pthread_cond_wait (cond=0x7f63fbf83450 <QTWTF::pageheap_memory+57552>, mutex=0x7f63fbf83428 <QTWTF::pageheap_memory+57512>) at pthread_cond_wait.c:655
#3  0x00007f63fbe8574a in QTWTF::TCMalloc_PageHeap::scavengerThread() (this=0x7f63fbf75380 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#4  0x00007f63fbe8576f in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#5  0x00007f641b9154c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#6  0x00007f641c0c8553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f63f9d3a700 (LWP 2712)):
#0  0x00007f641b91b3c5 in futex_wait_cancelable (private=0, expected=0, futex_word=0x562eaba08078) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f641b91b3c5 in __pthread_cond_wait_common (abstime=0x0, mutex=0x562eaba08028, cond=0x562eaba08050) at pthread_cond_wait.c:502
#2  0x00007f641b91b3c5 in __pthread_cond_wait (cond=0x562eaba08050, mutex=0x562eaba08028) at pthread_cond_wait.c:655
#3  0x00007f63fa05c71b in cnd_wait (mtx=0x562eaba08028, cond=0x562eaba08050) at ../include/c11/threads_posix.h:155
#4  0x00007f63fa05c71b in util_queue_thread_func (input=input@entry=0x562eaba09330) at ../src/util/u_queue.c:272
#5  0x00007f63fa05c32b in impl_thrd_routine (p=<optimized out>) at ../include/c11/threads_posix.h:87
#6  0x00007f641b9154c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#7  0x00007f641c0c8553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f63fbceb700 (LWP 2663)):
#0  0x00007f641c0bdae7 in __GI___poll (fds=0x7f63f4004e30, nfds=1, timeout=9989) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f641ac161ce in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f63f4004e30, timeout=<optimized out>, context=0x7f63f4000bf0) at ../glib/gmain.c:4228
#2  0x00007f641ac161ce in g_main_context_iterate (context=context@entry=0x7f63f4000bf0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3922
#3  0x00007f641ac16303 in g_main_context_iteration (context=0x7f63f4000bf0, may_block=may_block@entry=1) at ../glib/gmain.c:3988
#4  0x00007f641c647cb5 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f63f4000b20, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#5  0x00007f641c5f1ceb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f63fbceada0, flags={i = 36}, flags@entry={i = 0}) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6  0x00007f641c44a395 in QThread::exec() (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7  0x00007f641c44b4e6 in QThreadPrivate::start(void*) (arg=0x562eab7dcaf0) at thread/qthread_unix.cpp:361
#8  0x00007f641b9154c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007f641c0c8553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f6409501700 (LWP 2637)):
#0  0x00007f641c0bdae7 in __GI___poll (fds=0x7f6400004a30, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f641ac161ce in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f6400004a30, timeout=<optimized out>, context=0x7f6400000bf0) at ../glib/gmain.c:4228
#2  0x00007f641ac161ce in g_main_context_iterate (context=context@entry=0x7f6400000bf0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3922
#3  0x00007f641ac16303 in g_main_context_iteration (context=0x7f6400000bf0, may_block=may_block@entry=1) at ../glib/gmain.c:3988
#4  0x00007f641c647cb5 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f6400000b20, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#5  0x00007f641c5f1ceb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f6409500d80, flags={i = 36}, flags@entry={i = 0}) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6  0x00007f641c44a395 in QThread::exec() (this=this@entry=0x562eab5ead70) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7  0x00007f641dd13119 in QQmlThreadPrivate::run() (this=0x562eab5ead70) at qml/ftw/qqmlthread.cpp:148
#8  0x00007f641c44b4e6 in QThreadPrivate::start(void*) (arg=0x562eab5ead70) at thread/qthread_unix.cpp:361
#9  0x00007f641b9154c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#10 0x00007f641c0c8553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f640a78f700 (LWP 2515)):
#0  0x00007f641c0bdae7 in __GI___poll (fds=0x7f63fc019620, nfds=5, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f641ac161ce in g_main_context_poll (priority=<optimized out>, n_fds=5, fds=0x7f63fc019620, timeout=<optimized out>, context=0x7f63fc000bf0) at ../glib/gmain.c:4228
#2  0x00007f641ac161ce in g_main_context_iterate (context=context@entry=0x7f63fc000bf0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3922
#3  0x00007f641ac16303 in g_main_context_iteration (context=0x7f63fc000bf0, may_block=may_block@entry=1) at ../glib/gmain.c:3988
#4  0x00007f641c647cb5 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f63fc000b20, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#5  0x00007f641c5f1ceb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f640a78ed70, flags={i = 36}, flags@entry={i = 0}) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6  0x00007f641c44a395 in QThread::exec() (this=this@entry=0x7f641cedd060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7  0x00007f641ce59f4a in QDBusConnectionManager::run() (this=0x7f641cedd060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#8  0x00007f641c44b4e6 in QThreadPrivate::start(void*) (arg=0x7f641cedd060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:361
#9  0x00007f641b9154c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#10 0x00007f641c0c8553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f640b3d4700 (LWP 2479)):
#0  0x00007f641c0bdae7 in __GI___poll (fds=fds@entry=0x7f640b3d3ca8, nfds=nfds@entry=1, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f641e49238a in poll (__timeout=-1, __nfds=1, __fds=0x7f640b3d3ca8) at /usr/include/bits/poll2.h:46
#2  0x00007f641e49238a in _xcb_conn_wait (c=c@entry=0x562eab342910, cond=cond@entry=0x562eab342950, vector=vector@entry=0x0, count=count@entry=0x0) at xcb_conn.c:479
#3  0x00007f641e493ffa in xcb_wait_for_event (c=c@entry=0x562eab342910) at xcb_in.c:697
#4  0x00007f640b5b1ac8 in QXcbEventQueue::run() (this=0x562eab3545a0) at qxcbeventqueue.cpp:228
#5  0x00007f641c44b4e6 in QThreadPrivate::start(void*) (arg=0x562eab3545a0) at thread/qthread_unix.cpp:361
#6  0x00007f641b9154c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#7  0x00007f641c0c8553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f64186afc80 (LWP 2414)):
#0  0x00007f641c0bdae7 in __GI___poll (fds=0x562eb83ad580, nfds=18, timeout=16) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f641ac161ce in g_main_context_poll (priority=<optimized out>, n_fds=18, fds=0x562eb83ad580, timeout=<optimized out>, context=0x7f6404004fd0) at ../glib/gmain.c:4228
#2  0x00007f641ac161ce in g_main_context_iterate (context=context@entry=0x7f6404004fd0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3922
#3  0x00007f641ac16303 in g_main_context_iteration (context=0x7f6404004fd0, may_block=may_block@entry=1) at ../glib/gmain.c:3988
#4  0x00007f641c647cb5 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x562eab3334a0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#5  0x00007f641c5f1ceb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffc51b104b0, flags={i = 36}, flags@entry={i = 0}) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6  0x00007f641c5f9a16 in QCoreApplication::exec() () at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7  0x0000562ea942d73a in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/plasma-workspace-5.17.2-1.fc30.x86_64/shell/main.cpp:219
(gdb)
Comment 1 Germano Massullo (Thetra) 2019-11-14 10:41:44 UTC 
$ kquitapp5 plasmashell
$ plasmashell &
Solved the problem without the need to logging out and in
Comment 2 Nate Graham 2021-03-10 21:12:01 UTC 
Unfortunately the backtrace doesn't show a crashing thread. Is this still reproducible in Plasma 5.21? If so, can you attach a new backtrace that shows which thread is crashing? Thanks!
Comment 3 Germano Massullo (Thetra) 2021-03-10 21:48:22 UTC 
(In reply to Nate Graham from comment #2)
> Unfortunately the backtrace doesn't show a crashing thread. Is this still
> reproducible in Plasma 5.21? If so, can you attach a new backtrace that
> shows which thread is crashing? Thanks!

I am no longer experiencing the problem