Bug 406325

Summary:	Krita crashed on 'open file'
Product:	[Applications] krita	Reporter:	Donald Krebs <krebs.don>
Component:	General	Assignee:	Krita Bugs <krita-bugs-null>
Status:	RESOLVED DUPLICATE
Severity:	crash	CC:	halla
Priority:	NOR	Keywords:	drkonqi
Version First Reported In:	4.1.5
Target Milestone:	---
Platform:	Compiled Sources
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Donald Krebs 2019-04-08 10:13:46 UTC

Application: krita (4.1.5)
 (Compiled from sources)
Qt Version: 5.11.3
Frameworks Version: 5.56.0
Operating System: Linux 5.0.0-8-generic x86_64
Distribution: Ubuntu Disco Dingo (development branch)

-- Information about the crash:
- What I was doing when the application crashed: I downloaded an image from Bing.com then selected 'open in Krita.' it didn't open the file but Krita opened. From Krita, I selected 'open file' and Krita crashen

-- Backtrace:
Application: Krita (krita), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f1f1659b800 (LWP 14449))]

Thread 9 (Thread 0x7f1ede62a700 (LWP 14458)):
#0  0x00007f1f1dff3ba9 in __GI___poll (fds=0x7f1ed0004c00, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f1f19ebbcb6 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f1f19ebbddc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f1f1e58504b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f1f1e53214b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f1f1e3810d6 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f1f0fcaf4a6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f1f1e38ac77 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f1f1a685182 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007f1f1dffffaf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f1ee7fff700 (LWP 14457)):
#0  0x00007fffc93e8637 in ?? ()
#1  0x00007f1f1e00ebc6 in __GI___clock_gettime (clock_id=1, tp=0x7f1ee7ffeac0) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f1f1e584971 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f1f1e5831a9 in QTimerInfoList::updateCurrentTime() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f1f1e5837a5 in QTimerInfoList::timerWait(timespec&) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f1f1e584dce in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f1f19ebb1e9 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f1f19ebbbeb in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f1f19ebbddc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f1f1e58504b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f1f1e53214b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f1f1e3810d6 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f1f0fa2a3a5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#13 0x00007f1f1e38ac77 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f1f1a685182 in start_thread (arg=<optimized out>) at pthread_create.c:486
#15 0x00007f1f1dffffaf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f1ee77fe700 (LWP 14456)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f1f1e37fff0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f1f1e37fe62 in QSemaphore::tryAcquire(int, int) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f1f1c801faa in KisTileDataSwapper::run() () from /usr/lib/x86_64-linux-gnu/libkritaimage.so.17
#4  0x00007f1f1e38ac77 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f1f1a685182 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007f1f1dffffaf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f1eecbf5700 (LWP 14454)):
#0  0x00007f1f19ebbddc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f1f1e58504b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f1f1e53214b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f1f1e3810d6 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f1f1e38ac77 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f1f1a685182 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007f1f1dffffaf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f1f08f78700 (LWP 14453)):
#0  __GI___libc_read (nbytes=16, buf=0x7f1f08f77b50, fd=10) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=10, buf=0x7f1f08f77b50, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f1f19f02550 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f1f19ebb78f in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f1f19ebbc60 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f1f19ebbddc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f1f1e58504b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f1f1e53214b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f1f1e3810d6 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f1f1a6b3545 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#10 0x00007f1f1e38ac77 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f1f1a685182 in start_thread (arg=<optimized out>) at pthread_create.c:486
#12 0x00007f1f1dffffaf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f1f0981f700 (LWP 14452)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bd7c1f725c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55bd7c1f7208, cond=0x55bd7c1f7230) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55bd7c1f7230, mutex=0x55bd7c1f7208) at pthread_cond_wait.c:655
#3  0x00007f1f0e600bbb in ?? () from /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#4  0x00007f1f0e600927 in ?? () from /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#5  0x00007f1f1a685182 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007f1f1dffffaf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f1f0a18f700 (LWP 14451)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bd7c28a3a0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55bd7c28a350, cond=0x55bd7c28a378) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55bd7c28a378, mutex=0x55bd7c28a350) at pthread_cond_wait.c:655
#3  0x00007f1f0e600bbb in ?? () from /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#4  0x00007f1f0e600927 in ?? () from /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#5  0x00007f1f1a685182 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007f1f1dffffaf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f1f1531c700 (LWP 14450)):
#0  0x00007f1f1dff3ba9 in __GI___poll (fds=0x7f1f1531bcb8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f1f1cf56917 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f1f1cf5853a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f1f15e87519 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f1f1e38ac77 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f1f1a685182 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007f1f1dffffaf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f1f1659b800 (LWP 14449)):
[KCrash Handler]
#6  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#7  0x00007f1f1df07535 in __GI_abort () at abort.c:79
#8  0x00007f1f1df6e7b6 in __libc_message (action=action@entry=do_abort, fmt=fmt@entry=0x7f1f1e094952 "%s\n") at ../sysdeps/posix/libc_fatal.c:181
#9  0x00007f1f1df7560a in malloc_printerr (str=str@entry=0x7f1f1e0965e0 "free(): double free detected in tcache 2") at malloc.c:5352
#10 0x00007f1f1df77745 in _int_free (av=0x7f1f10000020, p=0x7f1f10012aa0, have_lock=<optimized out>) at malloc.c:4209
#11 0x00007f1f1e8ecbc0 in QTabletEvent::~QTabletEvent() () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#12 0x00007f1f20253607 in ?? () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17
#13 0x00007f1f2024cf0d in ?? () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17
#14 0x00007f1f2024d2ac in ?? () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17
#15 0x00007f1f20250e48 in ?? () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17
#16 0x00007f1f20254886 in KisXi2EventFilter::nativeEventFilter(QByteArray const&, void*, long*) () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17
#17 0x00007f1f1e530fcf in QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f1f15e88cb0 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#19 0x00007f1f15e89843 in QXcbConnection::processXcbEvents() () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#20 0x00007f1f1e55ce52 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007f1f1eeab491 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007f1f1eeb2ac0 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#23 0x00007f1f20169d07 in KisApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17
#24 0x00007f1f1e533479 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007f1f1e53646b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007f1f1e585a03 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007f1f19ebbaae in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f1f19ebbd48 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f1f19ebbddc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007f1f1e5850b4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007f1f15f1a8d1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#32 0x00007f1f1febc04f in ?? () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17
#33 0x00007f1f201d8c9a in KisViewManager::KisViewManagerPrivate::blockUntilOperationsFinishedImpl(KisSharedPtr<KisImage>, bool) () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17
#34 0x00007f1f201d9287 in KisViewManager::blockUntilOperationsFinishedForced(KisSharedPtr<KisImage>) () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17
#35 0x00007f1f1fe32770 in KisCanvas2::setDisplayFilter(QSharedPointer<KisDisplayFilter>) () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17
#36 0x00007f1eee5647cd in ?? () from /usr/lib/x86_64-linux-gnu/kritaplugins/kritalutdocker.so
#37 0x00007f1eee5656c4 in ?? () from /usr/lib/x86_64-linux-gnu/kritaplugins/kritalutdocker.so
#38 0x00007f1eee566796 in ?? () from /usr/lib/x86_64-linux-gnu/kritaplugins/kritalutdocker.so
#39 0x00007f1eee569161 in ?? () from /usr/lib/x86_64-linux-gnu/kritaplugins/kritalutdocker.so
#40 0x00007f1f1bfe92e8 in ?? () from /usr/lib/x86_64-linux-gnu/libkritaflake.so.17
#41 0x00007f1f201d6321 in KisViewManager::setCurrentView(KisView*) () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17
#42 0x00007f1f201a0c80 in KisMainWindow::setActiveView(KisView*) () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17
#43 0x00007f1f201a33ec in KisMainWindow::showView(KisView*) () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17
#44 0x00007f1f201a05cd in KisMainWindow::addView(KisView*) () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17
#45 0x00007f1f201a06ec in KisMainWindow::addViewAndNotifyLoadingCompleted(KisDocument*) () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17
#46 0x00007f1f201a0d3e in KisMainWindow::slotLoadCompleted() () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17
#47 0x00007f1f201ade89 in ?? () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17
#48 0x00007f1f1e55c5c6 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#49 0x00007f1f2017a0b8 in KisDocument::openUrlInternal(QUrl const&) () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17
#50 0x00007f1f2017a4ff in KisDocument::openUrl(QUrl const&, QFlags<KisDocument::OpenFlag>) () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17
#51 0x00007f1f201a0955 in KisMainWindow::openDocumentInternal(QUrl const&, QFlags<KisMainWindow::OpenFlag>) () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17
#52 0x00007f1f201a615e in KisMainWindow::openDocument(QUrl const&, QFlags<KisMainWindow::OpenFlag>) () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17
#53 0x00007f1f201a677c in KisMainWindow::slotFileOpen(bool) () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17
#54 0x00007f1f1e55c5c6 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#55 0x00007f1f1ef91872 in QAbstractButton::clicked(bool) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#56 0x00007f1f1ef91a8a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#57 0x00007f1f1ef92e4f in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#58 0x00007f1f1ef93025 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#59 0x00007f1f1eee9748 in QWidget::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#60 0x00007f1f1eeab491 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#61 0x00007f1f1eeb2d08 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#62 0x00007f1f20169d07 in KisApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17
#63 0x00007f1f1e533479 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#64 0x00007f1f1eeb2019 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#65 0x00007f1f1ef04264 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#66 0x00007f1f1ef06dee in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#67 0x00007f1f1eeab491 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#68 0x00007f1f1eeb2ac0 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#69 0x00007f1f20169d07 in KisApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libkritaui.so.17
#70 0x00007f1f1e533479 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#71 0x00007f1f1e8dca6b in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#72 0x00007f1f1e8de925 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#73 0x00007f1f1e8b8d3b in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#74 0x00007f1f15f1a8db in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#75 0x00007f1f1e53214b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#76 0x00007f1f1e53a2b2 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#77 0x000055bd794c8128 in main ()
[Inferior 1 (process 14449) detached]

Possible duplicates by query: bug 405663, bug 405125, bug 400864, bug 399326, bug 394640.

Reported using DrKonqi

Comment 1 Halla Rempt 2019-04-08 10:19:14 UTC

Your problem is that your distribution has updated to Qt 5.11, which has a bug in QTabletEvent. We released 4.1.8 which has a workaround, but you're still using Krita 4.1.5. Please use the appimage we provide instead of your distribution's package.

*** This bug has been marked as a duplicate of bug 405107 ***