Bug 385625 - Plasma crash while rearanging the task-bar (drag&drop) on wayland
Summary: Plasma crash while rearanging the task-bar (drag&drop) on wayland
Status: RESOLVED DUPLICATE of bug 381630
Alias: None
Product: plasmashell
Classification: Plasma
Component: general (show other bugs)
Version: 5.11.0
Platform: openSUSE Linux
: NOR crash
Target Milestone: 1.0
Assignee: David Edmundson
URL:
Keywords: drkonqi
Depends on:
Blocks:
 
Reported: 2017-10-11 18:54 UTC by Christian Hägele
Modified: 2018-01-15 09:52 UTC (History)
4 users (show)

See Also:
Latest Commit:
Version Fixed In:

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Description Christian Hägele 2017-10-11 18:54:07 UTC 
Application: plasmashell (5.11.0)

Qt Version: 5.9.1
Frameworks Version: 5.38.0
Operating System: Linux 4.13.4-1-default x86_64
Distribution: "openSUSE Tumbleweed"

-- Information about the crash:
- What I was doing when the application crashed:
I rearranged the taskbar. I tried to put a plasmaoid into the task-bar and it crashed.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
27	  return SYSCALL_CANCEL (nanosleep, requested_time, remaining);
[Current thread is 1 (Thread 0x7fd111aaa900 (LWP 18900))]

Thread 30 (Thread 0x7fcfc19d7700 (LWP 20307)):
#0  0x00007fd10a9a882d in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56357975dd24) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd10a9a882d in __pthread_cond_wait_common (abstime=0x0, mutex=0x56357975dcd0, cond=0x56357975dcf8) at pthread_cond_wait.c:502
#2  0x00007fd10a9a882d in __pthread_cond_wait (cond=0x56357975dcf8, mutex=0x56357975dcd0) at pthread_cond_wait.c:655
#3  0x00007fd10b7f004b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#4  0x00007fd10f541958 in  () at /usr/lib64/libQt5Quick.so.5
#5  0x00007fd10f541d8a in  () at /usr/lib64/libQt5Quick.so.5
#6  0x00007fd10b7eed2e in  () at /usr/lib64/libQt5Core.so.5
#7  0x00007fd10a9a2558 in start_thread (arg=0x7fcfc19d7700) at pthread_create.c:465
#8  0x00007fd10b0f345f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 29 (Thread 0x7fcfc37fe700 (LWP 20306)):
#0  0x00007fd10a9a882d in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56357901e7ac) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd10a9a882d in __pthread_cond_wait_common (abstime=0x0, mutex=0x56357901e758, cond=0x56357901e780) at pthread_cond_wait.c:502
#2  0x00007fd10a9a882d in __pthread_cond_wait (cond=0x56357901e780, mutex=0x56357901e758) at pthread_cond_wait.c:655
#3  0x00007fd06628bcab in  () at /usr/lib64/dri/radeonsi_dri.so
#4  0x00007fd06628bbc7 in  () at /usr/lib64/dri/radeonsi_dri.so
#5  0x00007fd10a9a2558 in start_thread (arg=0x7fcfc37fe700) at pthread_create.c:465
#6  0x00007fd10b0f345f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 28 (Thread 0x7fcfc21d8700 (LWP 20148)):
#0  0x00007fd10a9a882d in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563578372a94) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd10a9a882d in __pthread_cond_wait_common (abstime=0x0, mutex=0x563578372a40, cond=0x563578372a68) at pthread_cond_wait.c:502
#2  0x00007fd10a9a882d in __pthread_cond_wait (cond=0x563578372a68, mutex=0x563578372a40) at pthread_cond_wait.c:655
#3  0x00007fd10b7f004b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#4  0x00007fd10f541958 in  () at /usr/lib64/libQt5Quick.so.5
#5  0x00007fd10f541d8a in  () at /usr/lib64/libQt5Quick.so.5
#6  0x00007fd10b7eed2e in  () at /usr/lib64/libQt5Core.so.5
#7  0x00007fd10a9a2558 in start_thread (arg=0x7fcfc21d8700) at pthread_create.c:465
#8  0x00007fd10b0f345f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 27 (Thread 0x7fcfc3fff700 (LWP 20147)):
#0  0x00007fd10a9a882d in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5635799600ac) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd10a9a882d in __pthread_cond_wait_common (abstime=0x0, mutex=0x563579960058, cond=0x563579960080) at pthread_cond_wait.c:502
#2  0x00007fd10a9a882d in __pthread_cond_wait (cond=0x563579960080, mutex=0x563579960058) at pthread_cond_wait.c:655
#3  0x00007fd06628bcab in  () at /usr/lib64/dri/radeonsi_dri.so
#4  0x00007fd06628bbc7 in  () at /usr/lib64/dri/radeonsi_dri.so
#5  0x00007fd10a9a2558 in start_thread (arg=0x7fcfc3fff700) at pthread_create.c:465
#6  0x00007fd10b0f345f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 26 (Thread 0x7fcfd146f700 (LWP 19808)):
#0  0x00007fd10a9a882d in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563579f06630) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd10a9a882d in __pthread_cond_wait_common (abstime=0x0, mutex=0x563579f065e0, cond=0x563579f06608) at pthread_cond_wait.c:502
#2  0x00007fd10a9a882d in __pthread_cond_wait (cond=0x563579f06608, mutex=0x563579f065e0) at pthread_cond_wait.c:655
#3  0x00007fd10b7f004b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#4  0x00007fd10f541958 in  () at /usr/lib64/libQt5Quick.so.5
#5  0x00007fd10f541d8a in  () at /usr/lib64/libQt5Quick.so.5
#6  0x00007fd10b7eed2e in  () at /usr/lib64/libQt5Core.so.5
#7  0x00007fd10a9a2558 in start_thread (arg=0x7fcfd146f700) at pthread_create.c:465
#8  0x00007fd10b0f345f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 25 (Thread 0x7fcfd1c70700 (LWP 19807)):
#0  0x00007fd10a9a882d in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563579992808) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd10a9a882d in __pthread_cond_wait_common (abstime=0x0, mutex=0x5635799927b8, cond=0x5635799927e0) at pthread_cond_wait.c:502
#2  0x00007fd10a9a882d in __pthread_cond_wait (cond=0x5635799927e0, mutex=0x5635799927b8) at pthread_cond_wait.c:655
#3  0x00007fd06628bcab in  () at /usr/lib64/dri/radeonsi_dri.so
#4  0x00007fd06628bbc7 in  () at /usr/lib64/dri/radeonsi_dri.so
#5  0x00007fd10a9a2558 in start_thread (arg=0x7fcfd1c70700) at pthread_create.c:465
#6  0x00007fd10b0f345f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7fcfee5ed700 (LWP 19762)):
#0  0x00007fd10a9a882d in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5635784afb14) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd10a9a882d in __pthread_cond_wait_common (abstime=0x0, mutex=0x5635784afac0, cond=0x5635784afae8) at pthread_cond_wait.c:502
#2  0x00007fd10a9a882d in __pthread_cond_wait (cond=0x5635784afae8, mutex=0x5635784afac0) at pthread_cond_wait.c:655
#3  0x00007fd10b7f004b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#4  0x00007fd10f541958 in  () at /usr/lib64/libQt5Quick.so.5
#5  0x00007fd10f541d8a in  () at /usr/lib64/libQt5Quick.so.5
#6  0x00007fd10b7eed2e in  () at /usr/lib64/libQt5Core.so.5
#7  0x00007fd10a9a2558 in start_thread (arg=0x7fcfee5ed700) at pthread_create.c:465
#8  0x00007fd10b0f345f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7fcfeffff700 (LWP 19761)):
#0  0x00007fd10a9a882d in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563578ebe8a8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd10a9a882d in __pthread_cond_wait_common (abstime=0x0, mutex=0x563578ebe858, cond=0x563578ebe880) at pthread_cond_wait.c:502
#2  0x00007fd10a9a882d in __pthread_cond_wait (cond=0x563578ebe880, mutex=0x563578ebe858) at pthread_cond_wait.c:655
#3  0x00007fd06628bcab in  () at /usr/lib64/dri/radeonsi_dri.so
#4  0x00007fd06628bbc7 in  () at /usr/lib64/dri/radeonsi_dri.so
#5  0x00007fd10a9a2558 in start_thread (arg=0x7fcfeffff700) at pthread_create.c:465
#6  0x00007fd10b0f345f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7fd010bcd700 (LWP 19081)):
#0  0x00007fd10a9a882d in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563578690384) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd10a9a882d in __pthread_cond_wait_common (abstime=0x0, mutex=0x563578690330, cond=0x563578690358) at pthread_cond_wait.c:502
#2  0x00007fd10a9a882d in __pthread_cond_wait (cond=0x563578690358, mutex=0x563578690330) at pthread_cond_wait.c:655
#3  0x00007fd10b7f004b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#4  0x00007fd10f541958 in  () at /usr/lib64/libQt5Quick.so.5
#5  0x00007fd10f541d8a in  () at /usr/lib64/libQt5Quick.so.5
#6  0x00007fd10b7eed2e in  () at /usr/lib64/libQt5Core.so.5
#7  0x00007fd10a9a2558 in start_thread (arg=0x7fd010bcd700) at pthread_create.c:465
#8  0x00007fd10b0f345f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7fd013259700 (LWP 19080)):
#0  0x00007fd10a9a882d in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56357851c598) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd10a9a882d in __pthread_cond_wait_common (abstime=0x0, mutex=0x56357851c548, cond=0x56357851c570) at pthread_cond_wait.c:502
#2  0x00007fd10a9a882d in __pthread_cond_wait (cond=0x56357851c570, mutex=0x56357851c548) at pthread_cond_wait.c:655
#3  0x00007fd06628bcab in  () at /usr/lib64/dri/radeonsi_dri.so
#4  0x00007fd06628bbc7 in  () at /usr/lib64/dri/radeonsi_dri.so
#5  0x00007fd10a9a2558 in start_thread (arg=0x7fd013259700) at pthread_create.c:465
#6  0x00007fd10b0f345f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7fd011616700 (LWP 19039)):
#0  0x00007fd10a9a882d in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563576d5dcb0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd10a9a882d in __pthread_cond_wait_common (abstime=0x0, mutex=0x563576d5dc60, cond=0x563576d5dc88) at pthread_cond_wait.c:502
#2  0x00007fd10a9a882d in __pthread_cond_wait (cond=0x563576d5dc88, mutex=0x563576d5dc60) at pthread_cond_wait.c:655
#3  0x00007fd10b7f004b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#4  0x00007fd10f541958 in  () at /usr/lib64/libQt5Quick.so.5
#5  0x00007fd10f541d8a in  () at /usr/lib64/libQt5Quick.so.5
#6  0x00007fd10b7eed2e in  () at /usr/lib64/libQt5Core.so.5
#7  0x00007fd10a9a2558 in start_thread (arg=0x7fd011616700) at pthread_create.c:465
#8  0x00007fd10b0f345f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7fd011e17700 (LWP 19038)):
#0  0x00007fd10a9a882d in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56357892d6fc) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd10a9a882d in __pthread_cond_wait_common (abstime=0x0, mutex=0x56357892d6a8, cond=0x56357892d6d0) at pthread_cond_wait.c:502
#2  0x00007fd10a9a882d in __pthread_cond_wait (cond=0x56357892d6d0, mutex=0x56357892d6a8) at pthread_cond_wait.c:655
#3  0x00007fd06628bcab in  () at /usr/lib64/dri/radeonsi_dri.so
#4  0x00007fd06628bbc7 in  () at /usr/lib64/dri/radeonsi_dri.so
#5  0x00007fd10a9a2558 in start_thread (arg=0x7fd011e17700) at pthread_create.c:465
#6  0x00007fd10b0f345f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7fd013b5a700 (LWP 19036)):
#0  0x00007fd10a9a882d in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56357812bc54) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd10a9a882d in __pthread_cond_wait_common (abstime=0x0, mutex=0x56357812bc00, cond=0x56357812bc28) at pthread_cond_wait.c:502
#2  0x00007fd10a9a882d in __pthread_cond_wait (cond=0x56357812bc28, mutex=0x56357812bc00) at pthread_cond_wait.c:655
#3  0x00007fd10b7f004b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#4  0x00007fd10f541958 in  () at /usr/lib64/libQt5Quick.so.5
#5  0x00007fd10f541d8a in  () at /usr/lib64/libQt5Quick.so.5
#6  0x00007fd10b7eed2e in  () at /usr/lib64/libQt5Core.so.5
#7  0x00007fd10a9a2558 in start_thread (arg=0x7fd013b5a700) at pthread_create.c:465
#8  0x00007fd10b0f345f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7fd01d844700 (LWP 19035)):
#0  0x00007fd10a9a882d in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5635782b3c9c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd10a9a882d in __pthread_cond_wait_common (abstime=0x0, mutex=0x5635782b3c48, cond=0x5635782b3c70) at pthread_cond_wait.c:502
#2  0x00007fd10a9a882d in __pthread_cond_wait (cond=0x5635782b3c70, mutex=0x5635782b3c48) at pthread_cond_wait.c:655
#3  0x00007fd06628bcab in  () at /usr/lib64/dri/radeonsi_dri.so
#4  0x00007fd06628bbc7 in  () at /usr/lib64/dri/radeonsi_dri.so
#5  0x00007fd10a9a2558 in start_thread (arg=0x7fd01d844700) at pthread_create.c:465
#6  0x00007fd10b0f345f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7fd01e045700 (LWP 19027)):
#0  0x00007fd10b0e8cab in __GI___poll (fds=0x7fd0180034e0, nfds=1, timeout=2839162) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fd1060de149 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fd1060de25c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fd10ba1169b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007fd10b9ba34a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007fd10b7ea31a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007fd01779ff37 in KCupsConnection::run() () at /usr/lib64/libkcupslib.so
#7  0x00007fd10b7eed2e in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007fd10a9a2558 in start_thread (arg=0x7fd01e045700) at pthread_create.c:465
#9  0x00007fd10b0f345f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7fd02f7fe700 (LWP 18985)):
#0  0x00007fd10a9a882d in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563577463660) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd10a9a882d in __pthread_cond_wait_common (abstime=0x0, mutex=0x563577463610, cond=0x563577463638) at pthread_cond_wait.c:502
#2  0x00007fd10a9a882d in __pthread_cond_wait (cond=0x563577463638, mutex=0x563577463610) at pthread_cond_wait.c:655
#3  0x00007fd10b7f004b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#4  0x00007fd10f541958 in  () at /usr/lib64/libQt5Quick.so.5
#5  0x00007fd10f541d8a in  () at /usr/lib64/libQt5Quick.so.5
#6  0x00007fd10b7eed2e in  () at /usr/lib64/libQt5Core.so.5
#7  0x00007fd10a9a2558 in start_thread (arg=0x7fd02f7fe700) at pthread_create.c:465
#8  0x00007fd10b0f345f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7fd02ffff700 (LWP 18983)):
#0  0x00007fd10a9a882d in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5635777eef28) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd10a9a882d in __pthread_cond_wait_common (abstime=0x0, mutex=0x5635777eeed8, cond=0x5635777eef00) at pthread_cond_wait.c:502
#2  0x00007fd10a9a882d in __pthread_cond_wait (cond=0x5635777eef00, mutex=0x5635777eeed8) at pthread_cond_wait.c:655
#3  0x00007fd06628bcab in  () at /usr/lib64/dri/radeonsi_dri.so
#4  0x00007fd06628bbc7 in  () at /usr/lib64/dri/radeonsi_dri.so
#5  0x00007fd10a9a2558 in start_thread (arg=0x7fd02ffff700) at pthread_create.c:465
#6  0x00007fd10b0f345f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7fd039681700 (LWP 18970)):
#0  0x00007fd106123714 in g_mutex_unlock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007fd1060de266 in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fd10ba1169b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#3  0x00007fd10b9ba34a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007fd10b7ea31a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#5  0x00007fd10f4c6342 in  () at /usr/lib64/libQt5Quick.so.5
#6  0x00007fd10b7eed2e in  () at /usr/lib64/libQt5Core.so.5
#7  0x00007fd10a9a2558 in start_thread (arg=0x7fd039681700) at pthread_create.c:465
#8  0x00007fd10b0f345f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7fd056ffd700 (LWP 18944)):
#0  0x00007fd10a9a882d in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563576f7c420) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd10a9a882d in __pthread_cond_wait_common (abstime=0x0, mutex=0x563576f7c3d0, cond=0x563576f7c3f8) at pthread_cond_wait.c:502
#2  0x00007fd10a9a882d in __pthread_cond_wait (cond=0x563576f7c3f8, mutex=0x563576f7c3d0) at pthread_cond_wait.c:655
#3  0x00007fd06628bcab in  () at /usr/lib64/dri/radeonsi_dri.so
#4  0x00007fd06628bbc7 in  () at /usr/lib64/dri/radeonsi_dri.so
#5  0x00007fd10a9a2558 in start_thread (arg=0x7fd056ffd700) at pthread_create.c:465
#6  0x00007fd10b0f345f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fd0577fe700 (LWP 18943)):
#0  0x00007fd10a9a882d in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563576f7c424) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd10a9a882d in __pthread_cond_wait_common (abstime=0x0, mutex=0x563576f7c3d0, cond=0x563576f7c3f8) at pthread_cond_wait.c:502
#2  0x00007fd10a9a882d in __pthread_cond_wait (cond=0x563576f7c3f8, mutex=0x563576f7c3d0) at pthread_cond_wait.c:655
#3  0x00007fd06628bcab in  () at /usr/lib64/dri/radeonsi_dri.so
#4  0x00007fd06628bbc7 in  () at /usr/lib64/dri/radeonsi_dri.so
#5  0x00007fd10a9a2558 in start_thread (arg=0x7fd0577fe700) at pthread_create.c:465
#6  0x00007fd10b0f345f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fd057fff700 (LWP 18942)):
#0  0x00007fd10a9a882d in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563576f7c33c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd10a9a882d in __pthread_cond_wait_common (abstime=0x0, mutex=0x563576f7c2e8, cond=0x563576f7c310) at pthread_cond_wait.c:502
#2  0x00007fd10a9a882d in __pthread_cond_wait (cond=0x563576f7c310, mutex=0x563576f7c2e8) at pthread_cond_wait.c:655
#3  0x00007fd06628bcab in  () at /usr/lib64/dri/radeonsi_dri.so
#4  0x00007fd06628bbc7 in  () at /usr/lib64/dri/radeonsi_dri.so
#5  0x00007fd10a9a2558 in start_thread (arg=0x7fd057fff700) at pthread_create.c:465
#6  0x00007fd10b0f345f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fd05c9f2700 (LWP 18941)):
#0  0x00007fd10a9a882d in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563576f7c33c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd10a9a882d in __pthread_cond_wait_common (abstime=0x0, mutex=0x563576f7c2e8, cond=0x563576f7c310) at pthread_cond_wait.c:502
#2  0x00007fd10a9a882d in __pthread_cond_wait (cond=0x563576f7c310, mutex=0x563576f7c2e8) at pthread_cond_wait.c:655
#3  0x00007fd06628bcab in  () at /usr/lib64/dri/radeonsi_dri.so
#4  0x00007fd06628bbc7 in  () at /usr/lib64/dri/radeonsi_dri.so
#5  0x00007fd10a9a2558 in start_thread (arg=0x7fd05c9f2700) at pthread_create.c:465
#6  0x00007fd10b0f345f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fd05d1f3700 (LWP 18940)):
#0  0x00007fd10a9a882d in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563576f7c33c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd10a9a882d in __pthread_cond_wait_common (abstime=0x0, mutex=0x563576f7c2e8, cond=0x563576f7c310) at pthread_cond_wait.c:502
#2  0x00007fd10a9a882d in __pthread_cond_wait (cond=0x563576f7c310, mutex=0x563576f7c2e8) at pthread_cond_wait.c:655
#3  0x00007fd06628bcab in  () at /usr/lib64/dri/radeonsi_dri.so
#4  0x00007fd06628bbc7 in  () at /usr/lib64/dri/radeonsi_dri.so
#5  0x00007fd10a9a2558 in start_thread (arg=0x7fd05d1f3700) at pthread_create.c:465
#6  0x00007fd10b0f345f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fd05dbf9700 (LWP 18939)):
#0  0x00007fd10a9a882d in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563576e4dc50) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd10a9a882d in __pthread_cond_wait_common (abstime=0x0, mutex=0x563576e4dc00, cond=0x563576e4dc28) at pthread_cond_wait.c:502
#2  0x00007fd10a9a882d in __pthread_cond_wait (cond=0x563576e4dc28, mutex=0x563576e4dc00) at pthread_cond_wait.c:655
#3  0x00007fd06628bcab in  () at /usr/lib64/dri/radeonsi_dri.so
#4  0x00007fd06628bbc7 in  () at /usr/lib64/dri/radeonsi_dri.so
#5  0x00007fd10a9a2558 in start_thread (arg=0x7fd05dbf9700) at pthread_create.c:465
#6  0x00007fd10b0f345f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fd05e3fa700 (LWP 18938)):
#0  0x00007fd10a9a882d in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563576b8b8e0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd10a9a882d in __pthread_cond_wait_common (abstime=0x0, mutex=0x563576b8b890, cond=0x563576b8b8b8) at pthread_cond_wait.c:502
#2  0x00007fd10a9a882d in __pthread_cond_wait (cond=0x563576b8b8b8, mutex=0x563576b8b890) at pthread_cond_wait.c:655
#3  0x00007fd06628bcab in  () at /usr/lib64/dri/radeonsi_dri.so
#4  0x00007fd06628bbc7 in  () at /usr/lib64/dri/radeonsi_dri.so
#5  0x00007fd10a9a2558 in start_thread (arg=0x7fd05e3fa700) at pthread_create.c:465
#6  0x00007fd10b0f345f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fd0f1cbb700 (LWP 18937)):
#0  0x00007fd10a9a882d in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fd11148ffb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd10a9a882d in __pthread_cond_wait_common (abstime=0x0, mutex=0x7fd11148ff68, cond=0x7fd11148ff90) at pthread_cond_wait.c:502
#2  0x00007fd10a9a882d in __pthread_cond_wait (cond=0x7fd11148ff90, mutex=0x7fd11148ff68) at pthread_cond_wait.c:655
#3  0x00007fd1111998e4 in  () at /usr/lib64/libQt5Script.so.5
#4  0x00007fd111199929 in  () at /usr/lib64/libQt5Script.so.5
#5  0x00007fd10a9a2558 in start_thread (arg=0x7fd0f1cbb700) at pthread_create.c:465
#6  0x00007fd10b0f345f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fd0f3fff700 (LWP 18936)):
#0  0x00007fd10b0e4808 in __GI___libc_read (fd=11, buf=0x7fd0f3ffeaa0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007fd1061223c0 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fd1060ddc2b in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fd1060de0f0 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007fd1060de25c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007fd10ba1169b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007fd10b9ba34a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#7  0x00007fd10b7ea31a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#8  0x00007fd10e920705 in  () at /usr/lib64/libQt5Qml.so.5
#9  0x00007fd10b7eed2e in  () at /usr/lib64/libQt5Core.so.5
#10 0x00007fd10a9a2558 in start_thread (arg=0x7fd0f3fff700) at pthread_create.c:465
#11 0x00007fd10b0f345f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fd0fa465700 (LWP 18935)):
#0  0x00007fd10b0e8cab in __GI___poll (fds=0x7fd0ec002de0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fd1060de149 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fd1060de25c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fd10ba1169b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007fd10b9ba34a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007fd10b7ea31a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007fd10e920705 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007fd10b7eed2e in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007fd10a9a2558 in start_thread (arg=0x7fd0fa465700) at pthread_create.c:465
#9  0x00007fd10b0f345f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fd0fbe9c700 (LWP 18908)):
#0  0x00007fd10b0e8cab in __GI___poll (fds=0x7fd0f4002de0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fd1060de149 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fd1060de25c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fd10ba1169b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007fd10b9ba34a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007fd10b7ea31a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007fd10be90a45 in  () at /usr/lib64/libQt5DBus.so.5
#7  0x00007fd10b7eed2e in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007fd10a9a2558 in start_thread (arg=0x7fd0fbe9c700) at pthread_create.c:465
#9  0x00007fd10b0f345f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fd111aaa900 (LWP 18900)):
[KCrash Handler]
#6  0x00007fd10f596460 in QQuickWindowPrivate::deliverDragEvent(QQuickDragGrabber*, QEvent*) () at /usr/lib64/libQt5Quick.so.5
#7  0x00007fd10f596da3 in QQuickWindow::event(QEvent*) () at /usr/lib64/libQt5Quick.so.5
#8  0x00005635755a10eb in  ()
#9  0x00007fd10c9bf9bc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#10 0x00007fd10c9c6d74 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#11 0x00007fd10b9bbd38 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#12 0x00007fd10c20cf16 in QGuiApplicationPrivate::processDrop(QWindow*, QMimeData const*, QPoint const&, QFlags<Qt::DropAction>) () at /usr/lib64/libQt5Gui.so.5
#13 0x00007fd10c1e6952 in QWindowSystemInterface::handleDrop(QWindow*, QMimeData const*, QPoint const&, QFlags<Qt::DropAction>) () at /usr/lib64/libQt5Gui.so.5
#14 0x00007fd0fe2c5933 in  () at /usr/lib64/libQt5WaylandClient.so.5
#15 0x00007fd1056416bd in  () at /usr/lib64/libffi.so.7
#16 0x00007fd105640bcf in  () at /usr/lib64/libffi.so.7
#17 0x00007fd109feb4ab in  () at /usr/lib64/libwayland-client.so.0
#18 0x00007fd109fe8048 in  () at /usr/lib64/libwayland-client.so.0
#19 0x00007fd109fe9304 in wl_display_dispatch_queue_pending () at /usr/lib64/libwayland-client.so.0
#20 0x00007fd0fe2a7cf2 in QtWaylandClient::QWaylandDisplay::flushRequests() () at /usr/lib64/libQt5WaylandClient.so.5
#21 0x00007fd10b9e924a in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#22 0x00007fd10b9f5118 in QSocketNotifier::activated(int, QSocketNotifier::QPrivateSignal) () at /usr/lib64/libQt5Core.so.5
#23 0x00007fd10b9f5482 in QSocketNotifier::event(QEvent*) () at /usr/lib64/libQt5Core.so.5
#24 0x00007fd10c9bf9bc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#25 0x00007fd10c9c6d74 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#26 0x00007fd10b9bbd38 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#27 0x00007fd10ba1227d in  () at /usr/lib64/libQt5Core.so.5
#28 0x00007fd1060ddf97 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#29 0x00007fd1060de1d0 in  () at /usr/lib64/libglib-2.0.so.0
#30 0x00007fd1060de25c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#31 0x00007fd10ba1167f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#32 0x00007fd10b9ba34a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#33 0x00007fd10c2006c7 in QBasicDrag::drag(QDrag*) () at /usr/lib64/libQt5Gui.so.5
#34 0x00007fd10c21de51 in QDragManager::drag(QDrag*) () at /usr/lib64/libQt5Gui.so.5
#35 0x00007fd10c21a788 in QDrag::exec(QFlags<Qt::DropAction>, Qt::DropAction) () at /usr/lib64/libQt5Gui.so.5
#36 0x00007fd02e515ee9 in  () at /usr/lib64/qt5/qml/org/kde/plasma/private/taskmanager/libtaskmanagerplugin.so
#37 0x00007fd10b9e9c32 in QObject::event(QEvent*) () at /usr/lib64/libQt5Core.so.5
#38 0x00007fd10c9bf9bc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#39 0x00007fd10c9c6d74 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#40 0x00007fd10b9bbd38 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#41 0x00007fd10b9be325 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib64/libQt5Core.so.5
#42 0x00007fd10ba12003 in  () at /usr/lib64/libQt5Core.so.5
#43 0x00007fd1060ddf97 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#44 0x00007fd1060de1d0 in  () at /usr/lib64/libglib-2.0.so.0
#45 0x00007fd1060de25c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#46 0x00007fd10ba1167f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#47 0x00007fd10b9ba34a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#48 0x00007fd10b9c2bd4 in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5
#49 0x0000563575591f0c in  ()
#50 0x00007fd10b01bf4a in __libc_start_main (main=0x563575591500, argc=1, argv=0x7ffd5e4dc188, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffd5e4dc178) at ../csu/libc-start.c:308
#51 0x00005635755922aa in _start ()

Reported using DrKonqi
Comment 1 Christian Hägele 2017-10-11 19:11:28 UTC 
I did the rearrangement via drag&drop. Maybe that was the problem.
Comment 2 Alexander Mentyu 2017-11-21 11:32:49 UTC 
Able to reproduce this bug when dragging taskbar item in:

Distribution: KDE neon Developer Edition - Stable Branches
Plasma: 5.11.3
Frameworks: 5.41.0
Qt: 5.9.1
Kernel 4.10.0-38-generic
Type: 64-bit


Not sure if it's same or related crash.


Here is backtrace:

Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
[Current thread is 1 (Thread 0x7f14c3ed58c0 (LWP 3766))]

Thread 14 (Thread 0x7f13d5ffc700 (LWP 4382)):
[KCrash Handler]
#6  wl_proxy_create_wrapper (proxy=0x0) at ../src/wayland-client.c:2038
#7  0x00007f149b55648d in ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1
#8  0x00007f149b544dec in ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1
#9  0x00007f14a4291068 in QtWaylandClient::QWaylandEglWindow::updateSurface (this=this@entry=0x56195f0, create=create@entry=true) at ../../../../hardwareintegration/client/wayland-egl/qwaylandeglwindow.cpp:141
#10 0x00007f14a428f64d in QtWaylandClient::QWaylandGLContext::makeCurrent (this=0x68f5be0, surface=<optimized out>) at ../../../../hardwareintegration/client/wayland-egl/qwaylandglcontext.cpp:410
#11 0x00007f14bf40e2f9 in QOpenGLContext::makeCurrent (this=0x68f6300, surface=surface@entry=0x56027b0) at kernel/qopenglcontext.cpp:984
#12 0x00007f14c1ef9ab0 in QSGRenderThread::invalidateOpenGL (this=this@entry=0x68f6220, window=0x56027a0, inDestructor=<optimized out>, fallback=0x0) at scenegraph/qsgthreadedrenderloop.cpp:494
#13 0x00007f14c1f01172 in QSGRenderThread::event (this=0x68f6220, e=0x55f3830) at scenegraph/qsgthreadedrenderloop.cpp:402
#14 0x00007f14c1effbbc in QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x68f6220) at scenegraph/qsgthreadedrenderloop.cpp:710
#15 0x00007f14c1f00425 in QSGRenderThread::run (this=0x68f6220) at scenegraph/qsgthreadedrenderloop.cpp:738
#16 0x00007f14bee0c819 in QThreadPrivate::start (arg=0x68f6220) at thread/qthread_unix.cpp:368
#17 0x00007f14bdcb16ba in start_thread (arg=0x7f13d5ffc700) at pthread_create.c:333
#18 0x00007f14be7193dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f13d6bfd700 (LWP 4381)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f14bee0d77b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x5813060) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=this@entry=0x579fc98, mutex=mutex@entry=0x579fc90, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f14c1effb2d in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x579fc88) at scenegraph/qsgthreadedrenderloop.cpp:245
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x579fc10) at scenegraph/qsgthreadedrenderloop.cpp:709
#5  0x00007f14c1f00425 in QSGRenderThread::run (this=0x579fc10) at scenegraph/qsgthreadedrenderloop.cpp:738
#6  0x00007f14bee0c819 in QThreadPrivate::start (arg=0x579fc10) at thread/qthread_unix.cpp:368
#7  0x00007f14bdcb16ba in start_thread (arg=0x7f13d6bfd700) at pthread_create.c:333
#8  0x00007f14be7193dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f13d7ffe700 (LWP 4380)):
#0  0x00007fff533f5b0b in clock_gettime ()
#1  0x00007f14be727836 in __GI___clock_gettime (clock_id=clock_id@entry=1, tp=tp@entry=0x7f13d7ffda40) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f14bf035df1 in qt_clock_gettime (ts=0x7f13d7ffda40, clock=<optimized out>) at kernel/qelapsedtimer_unix.cpp:111
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at kernel/qelapsedtimer_unix.cpp:166
#4  qt_gettime () at kernel/qelapsedtimer_unix.cpp:175
#5  0x00007f14bf0345e9 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f13c80013a0) at kernel/qtimerinfo_unix.cpp:91
#6  0x00007f14bf034b55 in QTimerInfoList::timerWait (this=0x7f13c80013a0, tm=...) at kernel/qtimerinfo_unix.cpp:388
#7  0x00007f14bf03625e in timerSourcePrepareHelper (timeout=0x7f13d7ffdb14, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:132
#8  timerSourcePrepare (source=<optimized out>, timeout=0x7f13d7ffdb14) at kernel/qeventdispatcher_glib.cpp:165
#9  0x00007f14ba0a891d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f14ba0a92bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f14ba0a949c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f14bf0364eb in QEventDispatcherGlib::processEvents (this=0x7f13c80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#13 0x00007f14befdec4a in QEventLoop::exec (this=this@entry=0x7f13d7ffdce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#14 0x00007f14bee07b64 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#15 0x00007f14c14ddc85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007f14bee0c819 in QThreadPrivate::start (arg=0x1f8ba80) at thread/qthread_unix.cpp:368
#17 0x00007f14bdcb16ba in start_thread (arg=0x7f13d7ffe700) at pthread_create.c:333
#18 0x00007f14be7193dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f13e8c2f700 (LWP 4377)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f14bee0d77b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x3f1cfe0) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=this@entry=0x3f1ce28, mutex=mutex@entry=0x3f1ce20, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f14c1effb2d in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x3f1ce18) at scenegraph/qsgthreadedrenderloop.cpp:245
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x3f1cda0) at scenegraph/qsgthreadedrenderloop.cpp:709
#5  0x00007f14c1f00425 in QSGRenderThread::run (this=0x3f1cda0) at scenegraph/qsgthreadedrenderloop.cpp:738
#6  0x00007f14bee0c819 in QThreadPrivate::start (arg=0x3f1cda0) at thread/qthread_unix.cpp:368
#7  0x00007f14bdcb16ba in start_thread (arg=0x7f13e8c2f700) at pthread_create.c:333
#8  0x00007f14be7193dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f13eb6cb700 (LWP 4359)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f14bee0d77b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x19507c0) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=this@entry=0x26ef218, mutex=mutex@entry=0x26ef210, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f14c1effb2d in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x26ef208) at scenegraph/qsgthreadedrenderloop.cpp:245
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x26ef190) at scenegraph/qsgthreadedrenderloop.cpp:709
#5  0x00007f14c1f00425 in QSGRenderThread::run (this=0x26ef190) at scenegraph/qsgthreadedrenderloop.cpp:738
#6  0x00007f14bee0c819 in QThreadPrivate::start (arg=0x26ef190) at thread/qthread_unix.cpp:368
#7  0x00007f14bdcb16ba in start_thread (arg=0x7f13eb6cb700) at pthread_create.c:333
#8  0x00007f14be7193dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f13f35ba700 (LWP 4351)):
#0  0x00007f14be70d70d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f14ba0a938c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f14ba0a949c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f14bf0364eb in QEventDispatcherGlib::processEvents (this=0x7f13ec0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f14befdec4a in QEventLoop::exec (this=this@entry=0x7f13f35b9cc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007f14bee07b64 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#6  0x00007f13f5a98517 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007f14bee0c819 in QThreadPrivate::start (arg=0x26b8180) at thread/qthread_unix.cpp:368
#8  0x00007f14bdcb16ba in start_thread (arg=0x7f13f35ba700) at pthread_create.c:333
#9  0x00007f14be7193dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f1406f7a700 (LWP 3922)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f14bee0d77b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x1962eb0) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=this@entry=0x19637f8, mutex=mutex@entry=0x19637f0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f14c1effb2d in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x19637e8) at scenegraph/qsgthreadedrenderloop.cpp:245
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x1963770) at scenegraph/qsgthreadedrenderloop.cpp:709
#5  0x00007f14c1f00425 in QSGRenderThread::run (this=0x1963770) at scenegraph/qsgthreadedrenderloop.cpp:738
#6  0x00007f14bee0c819 in QThreadPrivate::start (arg=0x1963770) at thread/qthread_unix.cpp:368
#7  0x00007f14bdcb16ba in start_thread (arg=0x7f1406f7a700) at pthread_create.c:333
#8  0x00007f14be7193dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f140d33a700 (LWP 3917)):
#0  0x00007fff533f5b0b in clock_gettime ()
#1  0x00007f14be727836 in __GI___clock_gettime (clock_id=clock_id@entry=1, tp=tp@entry=0x7f140d3399f0) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f14bf035df1 in qt_clock_gettime (ts=0x7f140d3399f0, clock=<optimized out>) at kernel/qelapsedtimer_unix.cpp:111
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at kernel/qelapsedtimer_unix.cpp:166
#4  qt_gettime () at kernel/qelapsedtimer_unix.cpp:175
#5  0x00007f14bf0345e9 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f1408002ed0) at kernel/qtimerinfo_unix.cpp:91
#6  0x00007f14bf034b55 in QTimerInfoList::timerWait (this=0x7f1408002ed0, tm=...) at kernel/qtimerinfo_unix.cpp:388
#7  0x00007f14bf03625e in timerSourcePrepareHelper (timeout=0x7f140d339ac4, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:132
#8  timerSourcePrepare (source=<optimized out>, timeout=0x7f140d339ac4) at kernel/qeventdispatcher_glib.cpp:165
#9  0x00007f14ba0a891d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f14ba0a92bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f14ba0a949c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f14bf0364eb in QEventDispatcherGlib::processEvents (this=0x7f14080008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#13 0x00007f14befdec4a in QEventLoop::exec (this=this@entry=0x7f140d339c90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#14 0x00007f14bee07b64 in QThread::exec (this=this@entry=0x1948d00) at thread/qthread.cpp:515
#15 0x00007f14c1e7fbe6 in QQuickPixmapReader::run (this=0x1948d00) at util/qquickpixmapcache.cpp:868
#16 0x00007f14bee0c819 in QThreadPrivate::start (arg=0x1948d00) at thread/qthread_unix.cpp:368
#17 0x00007f14bdcb16ba in start_thread (arg=0x7f140d33a700) at pthread_create.c:333
#18 0x00007f14be7193dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f149bfff700 (LWP 3859)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f14c3936784 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f14c39367c9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f14bdcb16ba in start_thread (arg=0x7f149bfff700) at pthread_create.c:333
#4  0x00007f14be7193dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f14a6379700 (LWP 3829)):
#0  0x00007fff533f5b0b in clock_gettime ()
#1  0x00007f14be727836 in __GI___clock_gettime (clock_id=clock_id@entry=1, tp=tp@entry=0x7f14a6378a60) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f14bf035df1 in qt_clock_gettime (ts=0x7f14a6378a60, clock=<optimized out>) at kernel/qelapsedtimer_unix.cpp:111
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at kernel/qelapsedtimer_unix.cpp:166
#4  qt_gettime () at kernel/qelapsedtimer_unix.cpp:175
#5  0x00007f14bf0345e9 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f1494002ed0) at kernel/qtimerinfo_unix.cpp:91
#6  0x00007f14bf034b55 in QTimerInfoList::timerWait (this=0x7f1494002ed0, tm=...) at kernel/qtimerinfo_unix.cpp:388
#7  0x00007f14bf03625e in timerSourcePrepareHelper (timeout=0x7f14a6378b34, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:132
#8  timerSourcePrepare (source=<optimized out>, timeout=0x7f14a6378b34) at kernel/qeventdispatcher_glib.cpp:165
#9  0x00007f14ba0a891d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f14ba0a92bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f14ba0a949c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f14bf0364eb in QEventDispatcherGlib::processEvents (this=0x7f14940008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#13 0x00007f14befdec4a in QEventLoop::exec (this=this@entry=0x7f14a6378d00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#14 0x00007f14bee07b64 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#15 0x00007f14bee0c819 in QThreadPrivate::start (arg=0x1160a00) at thread/qthread_unix.cpp:368
#16 0x00007f14bdcb16ba in start_thread (arg=0x7f14a6379700) at pthread_create.c:333
#17 0x00007f14be7193dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f14a7fff700 (LWP 3825)):
#0  0x00007fff533f5b0b in clock_gettime ()
#1  0x00007f14be727836 in __GI___clock_gettime (clock_id=clock_id@entry=1, tp=tp@entry=0x7f14a7ffea40) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f14bf035df1 in qt_clock_gettime (ts=0x7f14a7ffea40, clock=<optimized out>) at kernel/qelapsedtimer_unix.cpp:111
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at kernel/qelapsedtimer_unix.cpp:166
#4  qt_gettime () at kernel/qelapsedtimer_unix.cpp:175
#5  0x00007f14bf0345e9 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f149c002cd0) at kernel/qtimerinfo_unix.cpp:91
#6  0x00007f14bf034b55 in QTimerInfoList::timerWait (this=0x7f149c002cd0, tm=...) at kernel/qtimerinfo_unix.cpp:388
#7  0x00007f14bf03625e in timerSourcePrepareHelper (timeout=0x7f14a7ffeb14, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:132
#8  timerSourcePrepare (source=<optimized out>, timeout=0x7f14a7ffeb14) at kernel/qeventdispatcher_glib.cpp:165
#9  0x00007f14ba0a891d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f14ba0a92bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f14ba0a949c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f14bf0364eb in QEventDispatcherGlib::processEvents (this=0x7f149c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#13 0x00007f14befdec4a in QEventLoop::exec (this=this@entry=0x7f14a7ffece0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#14 0x00007f14bee07b64 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#15 0x00007f14c14ddc85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007f14bee0c819 in QThreadPrivate::start (arg=0x10f1160) at thread/qthread_unix.cpp:368
#17 0x00007f14bdcb16ba in start_thread (arg=0x7f14a7fff700) at pthread_create.c:333
#18 0x00007f14be7193dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f14add3e700 (LWP 3804)):
#0  0x00007fff533f5b0b in clock_gettime ()
#1  0x00007f14be727836 in __GI___clock_gettime (clock_id=clock_id@entry=1, tp=tp@entry=0x7f14add3da40) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f14bf035df1 in qt_clock_gettime (ts=0x7f14add3da40, clock=<optimized out>) at kernel/qelapsedtimer_unix.cpp:111
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at kernel/qelapsedtimer_unix.cpp:166
#4  qt_gettime () at kernel/qelapsedtimer_unix.cpp:175
#5  0x00007f14bf0345e9 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f14a0002ed0) at kernel/qtimerinfo_unix.cpp:91
#6  0x00007f14bf034b55 in QTimerInfoList::timerWait (this=0x7f14a0002ed0, tm=...) at kernel/qtimerinfo_unix.cpp:388
#7  0x00007f14bf03625e in timerSourcePrepareHelper (timeout=0x7f14add3db14, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:132
#8  timerSourcePrepare (source=<optimized out>, timeout=0x7f14add3db14) at kernel/qeventdispatcher_glib.cpp:165
#9  0x00007f14ba0a891d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f14ba0a92bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f14ba0a949c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f14bf0364eb in QEventDispatcherGlib::processEvents (this=0x7f14a00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#13 0x00007f14befdec4a in QEventLoop::exec (this=this@entry=0x7f14add3dce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#14 0x00007f14bee07b64 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#15 0x00007f14c14ddc85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007f14bee0c819 in QThreadPrivate::start (arg=0x1098f30) at thread/qthread_unix.cpp:368
#17 0x00007f14bdcb16ba in start_thread (arg=0x7f14add3e700) at pthread_create.c:333
#18 0x00007f14be7193dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f14af774700 (LWP 3801)):
#0  0x00007f14be70924d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f14ba0ec6f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f14ba0a8e74 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f14ba0a9330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f14ba0a949c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f14bf0364eb in QEventDispatcherGlib::processEvents (this=0x7f14a80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f14befdec4a in QEventLoop::exec (this=this@entry=0x7f14af773cd0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#7  0x00007f14bee07b64 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#8  0x00007f14c4021b75 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007f14bee0c819 in QThreadPrivate::start (arg=0x7f14c4097da0) at thread/qthread_unix.cpp:368
#10 0x00007f14bdcb16ba in start_thread (arg=0x7f14af774700) at pthread_create.c:333
#11 0x00007f14be7193dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f14c3ed58c0 (LWP 3766)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f14bee0d77b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x68f5930) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x68f6260, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f14c1efe5da in QSGThreadedRenderLoop::releaseResources (this=this@entry=0x13161b0, w=w@entry=0x68f32f0, inDestructor=inDestructor@entry=true) at scenegraph/qsgthreadedrenderloop.cpp:1136
#4  0x00007f14c1eff743 in QSGThreadedRenderLoop::windowDestroyed (this=0x13161b0, window=0x56027a0) at scenegraph/qsgthreadedrenderloop.cpp:887
#5  0x00007f14c1f4d878 in QQuickWindow::~QQuickWindow (this=0x56027a0, __in_chrg=<optimized out>) at items/qquickwindow.cpp:1286
#6  0x00007f14986ab7c1 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/plasma/core/libcorebindingsplugin.so
#7  0x00007f14bf00ab83 in QObjectPrivate::deleteChildren (this=this@entry=0x55f3dc0) at kernel/qobject.cpp:1992
#8  0x00007f14bf014aa4 in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1022
#9  0x00007f14c1f3fda6 in QQuickItem::~QQuickItem (this=0x55f3d10, __in_chrg=<optimized out>) at items/qquickitem.cpp:2365
#10 0x00007f14c1f5c386 in QQmlPrivate::QQmlElement<QQuickMouseArea>::~QQmlElement (this=0x55f3d10, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:104
#11 QQmlPrivate::QQmlElement<QQuickMouseArea>::~QQmlElement (this=0x55f3d10, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:104
#12 0x00007f14bf00e110 in QObject::event (this=this@entry=0x55f3d10, e=e@entry=0x5812fb0) at kernel/qobject.cpp:1237
#13 0x00007f14c1f3e29b in QQuickItem::event (this=0x55f3d10, ev=0x5812fb0) at items/qquickitem.cpp:7785
#14 0x00007f14bf94952c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007f14bf950f37 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007f14befe0c18 in QCoreApplication::notifyInternal2 (receiver=0x55f3d10, event=event@entry=0x5812fb0) at kernel/qcoreapplication.cpp:1018
#17 0x00007f14befe33fb in QCoreApplication::sendEvent (event=0x5812fb0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:233
#18 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0xfbcb90) at kernel/qcoreapplication.cpp:1678
#19 0x00007f14befe3868 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1532
#20 0x00007f14bf036ec3 in postEventSourceDispatch (s=0xfd6240) at kernel/qeventdispatcher_glib.cpp:276
#21 0x00007f14ba0a9197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f14ba0a93f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f14ba0a949c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f14bf0364cf in QEventDispatcherGlib::processEvents (this=0x103e170, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#25 0x00007f14befdec4a in QEventLoop::exec (this=this@entry=0x7fff533a7d50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#26 0x00007f14befe7b84 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1291
#27 0x000000000041cf5b in main (argc=1, argv=<optimized out>) at /workspace/build/shell/main.cpp:167
Comment 3 Christoph Feck 2017-12-20 18:02:28 UTC 
Backtrace from comment #2 is bug 381630. The original backtrace might be a different bug.
Comment 4 Marco Martin 2018-01-02 09:31:02 UTC 

*** This bug has been marked as a duplicate of bug 381630 ***
Comment 5 Kai Uwe Broulik 2018-01-15 09:52:25 UTC 

*** This bug has been marked as a duplicate of bug 381630 ***