https://bugs.kde.org/show_bug.cgi?id=405093

            Bug ID: 405093
           Summary: Crash after closing a document.
           Product: krita
           Version: unspecified
          Platform: Neon Packages
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: General
          Assignee: krita-bugs-n...@kde.org
          Reporter: griffinval...@gmail.com
  Target Milestone: ---

Application: krita (4.2.0-pre-alpha (git 03db690))

Qt Version: 5.12.0
Frameworks Version: 5.55.0
Operating System: Linux 4.15.0-45-generic x86_64
Distribution: KDE neon User Edition 5.15

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

I had a document open, I closed it. Then Krita crashed. Seems to be related to
the mirror view config again... Haven't tried to reproduce.

-- Backtrace:
Application: Krita (krita), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fe39d98d840 (LWP 25107))]

Thread 18 (Thread 0x7fe32782f700 (LWP 25299)):
#0  0x00007fe3919daed9 in futex_reltimed_wait_cancelable (private=<optimized
out>, reltime=0x7fe32782ebc0, expected=0, futex_word=0x7fe3200153b4) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fe32782ec80, mutex=0x7fe320015360,
cond=0x7fe320015388) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7fe320015388, mutex=0x7fe320015360,
abstime=0x7fe32782ec80) at pthread_cond_wait.c:667
#3  0x00007fe398b5aac6 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fe398b5ae25 in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fe398b585dd in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fe398b53bc2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fe3919d46db in start_thread (arg=0x7fe32782f700) at
pthread_create.c:463
#8  0x00007fe39823b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7fe32ce2f700 (LWP 25298)):
#0  0x00007fe3919daed9 in futex_reltimed_wait_cancelable (private=<optimized
out>, reltime=0x7fe32ce2ebc0, expected=0, futex_word=0x7fe320014f60) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fe32ce2ec80, mutex=0x7fe320014f10,
cond=0x7fe320014f38) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7fe320014f38, mutex=0x7fe320014f10,
abstime=0x7fe32ce2ec80) at pthread_cond_wait.c:667
#3  0x00007fe398b5aac6 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fe398b5ae25 in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fe398b585dd in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fe398b53bc2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fe3919d46db in start_thread (arg=0x7fe32ce2f700) at
pthread_create.c:463
#8  0x00007fe39823b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7fe32d630700 (LWP 25297)):
#0  0x00007fe3919daed9 in futex_reltimed_wait_cancelable (private=<optimized
out>, reltime=0x7fe32d62fbc0, expected=0, futex_word=0x7fe320002fe0) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fe32d62fc80, mutex=0x7fe320002f90,
cond=0x7fe320002fb8) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7fe320002fb8, mutex=0x7fe320002f90,
abstime=0x7fe32d62fc80) at pthread_cond_wait.c:667
#3  0x00007fe398b5aac6 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fe398b5ae25 in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fe398b585dd in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fe398b53bc2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fe3919d46db in start_thread (arg=0x7fe32d630700) at
pthread_create.c:463
#8  0x00007fe39823b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7fe32de31700 (LWP 25296)):
#0  0x00007fe3919daed9 in futex_reltimed_wait_cancelable (private=<optimized
out>, reltime=0x7fe32de30bc0, expected=0, futex_word=0x7fe320001f10) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fe32de30c80, mutex=0x7fe320001ec0,
cond=0x7fe320001ee8) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7fe320001ee8, mutex=0x7fe320001ec0,
abstime=0x7fe32de30c80) at pthread_cond_wait.c:667
#3  0x00007fe398b5aac6 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fe398b5ae25 in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fe398b585dd in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fe398b53bc2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fe3919d46db in start_thread (arg=0x7fe32de31700) at
pthread_create.c:463
#8  0x00007fe39823b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7fe31d6fe700 (LWP 25295)):
#0  0x00007fe3919daed9 in futex_reltimed_wait_cancelable (private=<optimized
out>, reltime=0x7fe31d6fdbc0, expected=0, futex_word=0x7fe320001c50) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fe31d6fdc80, mutex=0x7fe320001c00,
cond=0x7fe320001c28) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7fe320001c28, mutex=0x7fe320001c00,
abstime=0x7fe31d6fdc80) at pthread_cond_wait.c:667
#3  0x00007fe398b5aac6 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fe398b5ae25 in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fe398b585dd in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fe398b53bc2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fe3919d46db in start_thread (arg=0x7fe31d6fe700) at
pthread_create.c:463
#8  0x00007fe39823b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7fe31cefd700 (LWP 25294)):
#0  0x00007fe3919daed9 in futex_reltimed_wait_cancelable (private=<optimized
out>, reltime=0x7fe31cefcbc0, expected=0, futex_word=0x7fe320001620) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fe31cefcc80, mutex=0x7fe3200015d0,
cond=0x7fe3200015f8) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7fe3200015f8, mutex=0x7fe3200015d0,
abstime=0x7fe31cefcc80) at pthread_cond_wait.c:667
#3  0x00007fe398b5aac6 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fe398b5ae25 in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fe398b585dd in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fe398b53bc2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fe3919d46db in start_thread (arg=0x7fe31cefd700) at
pthread_create.c:463
#8  0x00007fe39823b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7fe303fff700 (LWP 25293)):
#0  0x00007fe3919daed9 in futex_reltimed_wait_cancelable (private=<optimized
out>, reltime=0x7fe303ffebc0, expected=0, futex_word=0x7fe3200140e0) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fe303ffec80, mutex=0x7fe320014090,
cond=0x7fe3200140b8) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7fe3200140b8, mutex=0x7fe320014090,
abstime=0x7fe303ffec80) at pthread_cond_wait.c:667
#3  0x00007fe398b5aac6 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fe398b5ae25 in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fe398b585dd in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fe398b53bc2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fe3919d46db in start_thread (arg=0x7fe303fff700) at
pthread_create.c:463
#8  0x00007fe39823b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fe3037fe700 (LWP 25292)):
#0  0x00007fe3919daed9 in futex_reltimed_wait_cancelable (private=<optimized
out>, reltime=0x7fe3037fdbc0, expected=0, futex_word=0x55fea0904480) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fe3037fdc80, mutex=0x55fea0904430,
cond=0x55fea0904458) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x55fea0904458, mutex=0x55fea0904430,
abstime=0x7fe3037fdc80) at pthread_cond_wait.c:667
#3  0x00007fe398b5aac6 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fe398b5ae25 in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fe398b585dd in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fe398b53bc2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fe3919d46db in start_thread (arg=0x7fe3037fe700) at
pthread_create.c:463
#8  0x00007fe39823b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fe33d076700 (LWP 25239)):
#0  0x00007fe3919daed9 in futex_reltimed_wait_cancelable (private=<optimized
out>, reltime=0x7fe33d075bc0, expected=0, futex_word=0x7fe3300064e0) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fe33d075c80, mutex=0x7fe330006490,
cond=0x7fe3300064b8) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7fe3300064b8, mutex=0x7fe330006490,
abstime=0x7fe33d075c80) at pthread_cond_wait.c:667
#3  0x00007fe398b5aac6 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fe398b5ae25 in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fe398b585dd in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fe398b53bc2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fe3919d46db in start_thread (arg=0x7fe33d076700) at
pthread_create.c:463
#8  0x00007fe39823b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fe33d877700 (LWP 25238)):
#0  0x00007fe39822ebf9 in __GI___poll (fds=0x7fe330004db0, nfds=1,
timeout=127390) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fe3900d8539 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe3900d864c in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fe398d8915b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fe398d2a64a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fe398b5241a in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fe398b53bc2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fe3919d46db in start_thread (arg=0x7fe33d877700) at
pthread_create.c:463
#8  0x00007fe39823b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fe33e0b8700 (LWP 25233)):
#0  0x00007fe3900d8517 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fe3900d864c in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe398d8915b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007fe398d2a64a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fe398b5241a in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fe37ba961c6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fe398b53bc2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fe3919d46db in start_thread (arg=0x7fe33e0b8700) at
pthread_create.c:463
#8  0x00007fe39823b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fe35490b700 (LWP 25228)):
#0  0x00007fe39011e049 in g_mutex_lock () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fe3900d8638 in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe398d8915b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007fe398d2a64a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fe398b5241a in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fe37b5d12e5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#6  0x00007fe398b53bc2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fe3919d46db in start_thread (arg=0x7fe35490b700) at
pthread_create.c:463
#8  0x00007fe39823b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fe34ffff700 (LWP 25215)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fe398b56580 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fe398b563f2 in QSemaphore::tryAcquire(int, int) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007fe39ab8806a in KisTileDataSwapper::waitForWork (this=0x7fe39b3254e0
<(anonymous namespace)::Q_QGS_s_instance::innerFunction()::holder+64>) at
/home/wolthera/krita/src/libs/image/tiles3/swap/kis_tile_data_swapper.cpp:86
#4  0x00007fe39ab88086 in KisTileDataSwapper::run (this=0x7fe39b3254e0
<(anonymous namespace)::Q_QGS_s_instance::innerFunction()::holder+64>) at
/home/wolthera/krita/src/libs/image/tiles3/swap/kis_tile_data_swapper.cpp:92
#5  0x00007fe398b53bc2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fe3919d46db in start_thread (arg=0x7fe34ffff700) at
pthread_create.c:463
#7  0x00007fe39823b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fe35706e700 (LWP 25209)):
#0  0x00007fe39822a0b4 in __GI___libc_read (fd=17, buf=0x7fe35706db50,
nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fe39011ccd0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe3900d8027 in g_main_context_check () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fe3900d84e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fe3900d864c in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fe398d8915b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fe398d2a64a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fe398b5241a in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fe398b53bc2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fe3919d46db in start_thread (arg=0x7fe35706e700) at
pthread_create.c:463
#10 0x00007fe39823b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fe382e39700 (LWP 25124)):
#0  0x00007fe3919da9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55fe84e5ed48) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55fe84e5ecf8,
cond=0x55fe84e5ed20) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55fe84e5ed20, mutex=0x55fe84e5ecf8) at
pthread_cond_wait.c:655
#3  0x00007fe374b48b1b in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007fe374b48847 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007fe3919d46db in start_thread (arg=0x7fe382e39700) at
pthread_create.c:463
#6  0x00007fe39823b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fe36f7ce700 (LWP 25123)):
#0  0x00007fe39822ebf9 in __GI___poll (fds=0x7fe36f7cdc78, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fe38ee74747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fe38ee7636a in xcb_wait_for_event () from
/usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fe38418232a in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fe398b53bc2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fe3919d46db in start_thread (arg=0x7fe36f7ce700) at
pthread_create.c:463
#6  0x00007fe39823b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fe377776700 (LWP 25113)):
#0  0x00007fe3900d7905 in g_main_context_prepare () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fe3900d846b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe3900d864c in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fe398d8915b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fe398d2a64a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fe398b5241a in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fe391c02015 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007fe398b53bc2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fe3919d46db in start_thread (arg=0x7fe377776700) at
pthread_create.c:463
#9  0x00007fe39823b88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fe39d98d840 (LWP 25107)):
[KCrash Handler]
#6  0x00007fe398d59690 in QObject::blockSignals(bool) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fe39c0b1a83 in KisSignalsBlocker::blockObjects (this=0x7fff93592db8)
at /home/wolthera/krita/src/libs/global/kis_signals_blocker.h:82
#8  0x00007fe39c0cde78 in KisSignalsBlocker::KisSignalsBlocker
(this=0x7fff93592db8, object=0x55fe00000068) at
/home/wolthera/krita/src/libs/global/kis_signals_blocker.h:65
#9  0x00007fe39c51c401 in KisMirrorAxis::setMirrorAxisConfig
(this=0x55fea092c6b0, config=...) at
/home/wolthera/krita/src/libs/ui/canvas/kis_mirror_axis.cpp:365
#10 0x00007fe39c5a6380 in KisMirrorManager::setDecorationConfig
(this=0x55fe936a83b0) at
/home/wolthera/krita/src/libs/ui/kis_mirror_manager.cpp:129
#11 0x00007fe39c5a5e94 in KisMirrorManager::setView (this=0x55fe936a83b0,
imageView=...) at /home/wolthera/krita/src/libs/ui/kis_mirror_manager.cpp:86
#12 0x00007fe39c5985e2 in KisViewManager::setCurrentView (this=0x55fe936928e0,
view=0x55fe9b56a250) at /home/wolthera/krita/src/libs/ui/KisViewManager.cpp:497
#13 0x00007fe39c55ac46 in KisMainWindow::setActiveView (this=0x55fe9309b970,
view=0x55fe9b56a250) at /home/wolthera/krita/src/libs/ui/KisMainWindow.cpp:1320
#14 0x00007fe39c561d47 in KisMainWindow::setActiveSubWindow
(this=0x55fe9309b970, window=0x55fe9d33b770) at
/home/wolthera/krita/src/libs/ui/KisMainWindow.cpp:2298
#15 0x00007fe39c55fd14 in KisMainWindow::subWindowActivated
(this=0x55fe9309b970) at
/home/wolthera/krita/src/libs/ui/KisMainWindow.cpp:2075
#16 0x00007fe39c564f31 in KisMainWindow::qt_static_metacall (_o=0x55fe9309b970,
_c=QMetaObject::InvokeMetaMethod, _id=21, _a=0x7fff93593270) at
/home/wolthera/krita/build/libs/ui/kritaui_autogen/include/moc_KisMainWindow.cpp:323
#17 0x00007fe398d5be25 in QMetaObject::activate(QObject*, int, int, void**) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007fe399c78bbf in QMdiArea::subWindowActivated(QMdiSubWindow*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x00007fe399c7d21f in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x00007fe399c7df28 in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007fe399c7ee05 in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007fe398d5be25 in QMetaObject::activate(QObject*, int, int, void**) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007fe399c8443c in
QMdiSubWindow::windowStateChanged(QFlags<Qt::WindowState>,
QFlags<Qt::WindowState>) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#24 0x00007fe399c8c233 in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007fe399c8162a in QMdiArea::viewportEvent(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007fe398d2c0ad in
QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007fe399b22815 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#28 0x00007fe399b29dd0 in QApplication::notify(QObject*, QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#29 0x00007fe39c5217c5 in KisApplication::notify (this=0x7fff93594fc0,
receiver=0x55fe935e3000, event=0x7fff93593920) at
/home/wolthera/krita/src/libs/ui/KisApplication.cpp:608
#30 0x00007fe398d2c328 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007fe399c8dc2b in QMdiSubWindow::closeEvent(QCloseEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#32 0x00007fe399b62838 in QWidget::event(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#33 0x00007fe399c8d1eb in QMdiSubWindow::event(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#34 0x00007fe399b2283c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#35 0x00007fe399b29dd0 in QApplication::notify(QObject*, QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#36 0x00007fe39c5217c5 in KisApplication::notify (this=0x7fff93594fc0,
receiver=0x55fea0fcd840, event=0x7fff93593de0) at
/home/wolthera/krita/src/libs/ui/KisApplication.cpp:608
#37 0x00007fe398d2c328 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#38 0x00007fe399b5db7e in
QWidgetPrivate::close_helper(QWidgetPrivate::CloseMode) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#39 0x00007fe399b619fa in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#40 0x00007fe398d5be25 in QMetaObject::activate(QObject*, int, int, void**) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#41 0x00007fe399c84e9e in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#42 0x00007fe399b62838 in QWidget::event(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#43 0x00007fe399c8a850 in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#44 0x00007fe399b2283c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#45 0x00007fe399b2aca8 in QApplication::notify(QObject*, QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#46 0x00007fe39c5217c5 in KisApplication::notify (this=0x7fff93594fc0,
receiver=0x55fe9360a2a0, event=0x7fff93594580) at
/home/wolthera/krita/src/libs/ui/KisApplication.cpp:608
#47 0x00007fe398d2c328 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#48 0x00007fe399b2929f in QApplicationPrivate::sendMouseEvent(QWidget*,
QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) ()
from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#49 0x00007fe399b7da80 in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#50 0x00007fe399b8034a in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#51 0x00007fe399b2283c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#52 0x00007fe399b29dd0 in QApplication::notify(QObject*, QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#53 0x00007fe39c5217c5 in KisApplication::notify (this=0x7fff93594fc0,
receiver=0x55fe942657c0, event=0x7fff93594aa0) at
/home/wolthera/krita/src/libs/ui/KisApplication.cpp:608
#54 0x00007fe398d2c328 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#55 0x00007fe3992f452b in
QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#56 0x00007fe3992f5695 in
QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#57 0x00007fe3992ce14b in
QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#58 0x00007fe38418330a in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#59 0x00007fe3900d8387 in g_main_context_dispatch () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#60 0x00007fe3900d85c0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#61 0x00007fe3900d864c in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#62 0x00007fe398d8913f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#63 0x00007fe398d2a64a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#64 0x00007fe398d33800 in QCoreApplication::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#65 0x000055fe828a1acd in main (argc=1, argv=0x7fff93595128) at
/home/wolthera/krita/src/krita/main.cc:487

Possible duplicates by query: bug 402679.

Reported using DrKonqi

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