Bug 428183

Summary: Crash when painting fast
Product: [Applications] krita Reporter: Raghavendra kamath <raghu>
Component: GeneralAssignee: Krita Bugs <krita-bugs-null>
Status: RESOLVED UPSTREAM    
Severity: crash CC: dimula73, halla, raghu, tamtamy.tymona
Priority: NOR Keywords: drkonqi
Version First Reported In: 4.4.0   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: New crash information added by DrKonqi

Description Raghavendra kamath 2020-10-24 14:57:12 UTC 
Application: krita (4.4.0)

Qt Version: 5.15.1
Frameworks Version: 5.75.0
Operating System: Linux 5.9.1-arch1-1 x86_64
Windowing system: X11
Distribution: Arch Linux

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

I was painting some texture with fast and repetitive strokes. Krita crashed two times with similar action.

The crash can be reproduced every time.

-- Backtrace:
Application: Krita (krita), signal: Aborted

[New LWP 266288]
[New LWP 266298]
[New LWP 266299]
[New LWP 266300]
[New LWP 266301]
[New LWP 266302]
[New LWP 266303]
[New LWP 266304]
[New LWP 266305]
[New LWP 266320]
[New LWP 266321]
[New LWP 266324]
[New LWP 266325]
[New LWP 266326]
[New LWP 267000]
[New LWP 268555]
[New LWP 268556]
[New LWP 268557]
[New LWP 268558]
[New LWP 268559]
[New LWP 268560]
[New LWP 268561]
[New LWP 268562]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
0x00007f5774b7ed6b in sched_yield () from /usr/lib/libc.so.6
[Current thread is 1 (Thread 0x7f576fa57cc0 (LWP 266283))]

Thread 24 (Thread 0x7f56d4aad640 (LWP 268562)):
[KCrash Handler]
#4  0x00007f5774ad5615 in raise () from /usr/lib/libc.so.6
#5  0x00007f5774abe862 in abort () from /usr/lib/libc.so.6
#6  0x00007f5774b175e8 in __libc_message () from /usr/lib/libc.so.6
#7  0x00007f5774ba7a3a in __fortify_fail () from /usr/lib/libc.so.6
#8  0x00007f5774ba7a04 in __stack_chk_fail () from /usr/lib/libc.so.6
#9  0x00007f5775532bb0 in QImageData::create(QSize const&, QImage::Format) () from /usr/lib/libQt5Gui.so.5
#10 0x00007f5775532bdd in QImage::QImage(QSize const&, QImage::Format) () from /usr/lib/libQt5Gui.so.5
#11 0x00007f5775532c24 in QImage::QImage(int, int, QImage::Format) () from /usr/lib/libQt5Gui.so.5
#12 0x00007f577553322c in QImage::copy(QRect const&) const () from /usr/lib/libQt5Gui.so.5
#13 0x00007f5774a60c16 in KisQImagePyramid::appendPyramidLevel(QImage const&) () from /usr/lib/libkritalibbrush.so.20
#14 0x00007f5774a60f3f in KisQImagePyramid::KisQImagePyramid(QImage const&) () from /usr/lib/libkritalibbrush.so.20
#15 0x00007f5774a614a2 in KisSharedQImagePyramid::pyramid(KisBrush const*) const () from /usr/lib/libkritalibbrush.so.20
#16 0x00007f5774a48b77 in KisBrush::generateMaskAndApplyMaskOrCreateDab(KisSharedPtr<KisFixedPaintDevice>, KisBrush::ColoringInformation*, KisDabShape const&, KisPaintInformation const&, double, double, double, double) const () from /usr/lib/libkritalibbrush.so.20
#17 0x00007f5774a4721c in KisBrush::mask(KisSharedPtr<KisFixedPaintDevice>, KoColor const&, KisDabShape const&, KisPaintInformation const&, double, double, double, double) const () from /usr/lib/libkritalibbrush.so.20
#18 0x00007f57642dcefe in KisDabCacheUtils::generateDab(KisDabCacheUtils::DabGenerationInfo const&, KisDabCacheUtils::DabRenderingResources*, KisSharedPtr<KisFixedPaintDevice>*) () from /usr/lib/libkritalibpaintop.so.20
#19 0x00007f576422c428 in KisDabRenderingJobRunner::executeOneJob(KisDabRenderingJob*, KisDabCacheUtils::DabRenderingResources*, KisDabRenderingQueue*) () from /usr/lib/kritaplugins/kritadefaultpaintops.so
#20 0x00007f576422c521 in KisDabRenderingJobRunner::run() () from /usr/lib/kritaplugins/kritadefaultpaintops.so
#21 0x00007f577753b8a4 in FreehandStrokeStrategy::doStrokeCallback(KisStrokeJobData*) () from /usr/lib/libkritaui.so.20
#22 0x00007f57764821c8 in ?? () from /usr/lib/libkritaimage.so.20
#23 0x00007f5774f29dc2 in ?? () from /usr/lib/libQt5Core.so.5
#24 0x00007f5774f25e8f in ?? () from /usr/lib/libQt5Core.so.5
#25 0x00007f5772f2a3e9 in start_thread () from /usr/lib/libpthread.so.0
#26 0x00007f5774b98293 in clone () from /usr/lib/libc.so.6

Thread 23 (Thread 0x7f56d77fe640 (LWP 268561)):
#0  0x00007f5772f309c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007f5774f2c058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /usr/lib/libQt5Core.so.5
#2  0x00007f5774f29fc4 in ?? () from /usr/lib/libQt5Core.so.5
#3  0x00007f5774f25e8f in ?? () from /usr/lib/libQt5Core.so.5
#4  0x00007f5772f2a3e9 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007f5774b98293 in clone () from /usr/lib/libc.so.6

Thread 22 (Thread 0x7f56ec9fe640 (LWP 268560)):
#0  0x00007f5772f309c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007f5774f2c058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /usr/lib/libQt5Core.so.5
#2  0x00007f5774f29fc4 in ?? () from /usr/lib/libQt5Core.so.5
#3  0x00007f5774f25e8f in ?? () from /usr/lib/libQt5Core.so.5
#4  0x00007f5772f2a3e9 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007f5774b98293 in clone () from /usr/lib/libc.so.6

Thread 21 (Thread 0x7f56ee9ff640 (LWP 268559)):
#0  0x00007f5772f309c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007f5774f2c058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /usr/lib/libQt5Core.so.5
#2  0x00007f5774f29fc4 in ?? () from /usr/lib/libQt5Core.so.5
#3  0x00007f5774f25e8f in ?? () from /usr/lib/libQt5Core.so.5
#4  0x00007f5772f2a3e9 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007f5774b98293 in clone () from /usr/lib/libc.so.6

Thread 20 (Thread 0x7f56ed7fe640 (LWP 268558)):
#0  0x00007f5772f309c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007f5774f2c058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /usr/lib/libQt5Core.so.5
#2  0x00007f5774f29fc4 in ?? () from /usr/lib/libQt5Core.so.5
#3  0x00007f5774f25e8f in ?? () from /usr/lib/libQt5Core.so.5
#4  0x00007f5772f2a3e9 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007f5774b98293 in clone () from /usr/lib/libc.so.6

Thread 19 (Thread 0x7f56d7fff640 (LWP 268557)):
#0  0x00007f5772f309c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007f5774f2c058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /usr/lib/libQt5Core.so.5
#2  0x00007f5774f29fc4 in ?? () from /usr/lib/libQt5Core.so.5
#3  0x00007f5774f25e8f in ?? () from /usr/lib/libQt5Core.so.5
#4  0x00007f5772f2a3e9 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007f5774b98293 in clone () from /usr/lib/libc.so.6

Thread 18 (Thread 0x7f56d6ffd640 (LWP 268556)):
#0  0x00007f5772f309c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007f5774f2c058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /usr/lib/libQt5Core.so.5
#2  0x00007f5774f29fc4 in ?? () from /usr/lib/libQt5Core.so.5
#3  0x00007f5774f25e8f in ?? () from /usr/lib/libQt5Core.so.5
#4  0x00007f5772f2a3e9 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007f5774b98293 in clone () from /usr/lib/libc.so.6

Thread 17 (Thread 0x7f56f4f3e640 (LWP 268555)):
#0  0x00007f5772f309c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007f5774f2c058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /usr/lib/libQt5Core.so.5
#2  0x00007f5774f29fc4 in ?? () from /usr/lib/libQt5Core.so.5
#3  0x00007f5774f25e8f in ?? () from /usr/lib/libQt5Core.so.5
#4  0x00007f5772f2a3e9 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007f5774b98293 in clone () from /usr/lib/libc.so.6

Thread 16 (Thread 0x7f56d67fc640 (LWP 267000)):
#0  0x00007f5774b88efc in read () from /usr/lib/libc.so.6
#1  0x00007f576fe2b542 in pa_read () from /usr/lib/pulseaudio/libpulsecommon-13.99.so
#2  0x00007f57723dcf0f in pa_mainloop_prepare () from /usr/lib/libpulse.so.0
#3  0x00007f57723dd291 in pa_mainloop_iterate () from /usr/lib/libpulse.so.0
#4  0x00007f57723dd351 in pa_mainloop_run () from /usr/lib/libpulse.so.0
#5  0x00007f57723ed81e in ?? () from /usr/lib/libpulse.so.0
#6  0x00007f576fe5d5fc in ?? () from /usr/lib/pulseaudio/libpulsecommon-13.99.so
#7  0x00007f5772f2a3e9 in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007f5774b98293 in clone () from /usr/lib/libc.so.6

Thread 15 (Thread 0x7f572cebf640 (LWP 266326)):
#0  0x00007f57725a24eb in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#1  0x00007f57725f65d6 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f57725a1121 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f577516495c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007f577510a65c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f5774f24ca2 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f576769e1db in ?? () from /usr/lib/libQt5Quick.so.5
#7  0x00007f5774f25e8f in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f5772f2a3e9 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f5774b98293 in clone () from /usr/lib/libc.so.6

Thread 14 (Thread 0x7f572ffff640 (LWP 266325)):
#0  0x00007f5774b88efc in read () from /usr/lib/libc.so.6
#1  0x00007f57725a2f60 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#2  0x00007f57725f6662 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007f57725a1121 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007f577516495c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f577510a65c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007f5774f24ca2 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#7  0x00007f57674044b9 in ?? () from /usr/lib/libQt5Qml.so.5
#8  0x00007f5774f25e8f in ?? () from /usr/lib/libQt5Core.so.5
#9  0x00007f5772f2a3e9 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007f5774b98293 in clone () from /usr/lib/libc.so.6

Thread 13 (Thread 0x7f572f7fe640 (LWP 266324)):
#0  0x00007f5774b5fc51 in clock_nanosleep@GLIBC_2.2.5 () from /usr/lib/libc.so.6
#1  0x00007f5774b65137 in nanosleep () from /usr/lib/libc.so.6
#2  0x00007f577516429f in ?? () from /usr/lib/libQt5Core.so.5
#3  0x00007f57764a821b in KisTileDataSwapper::run() () from /usr/lib/libkritaimage.so.20
#4  0x00007f5774f25e8f in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007f5772f2a3e9 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007f5774b98293 in clone () from /usr/lib/libc.so.6

Thread 12 (Thread 0x7f574d415640 (LWP 266321)):
#0  0x00007ffd205c2678 in ?? ()
#1  0x00007ffd205c29d7 in clock_gettime ()
#2  0x00007f5774b5fb35 in clock_gettime@GLIBC_2.2.5 () from /usr/lib/libc.so.6
#3  0x00007f57725a2d4a in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#4  0x00007f57725f6662 in ?? () from /usr/lib/libglib-2.0.so.0
#5  0x00007f57725a1121 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#6  0x00007f577516495c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#7  0x00007f577510a65c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#8  0x00007f5774f24ca2 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#9  0x00007f5774f25e8f in ?? () from /usr/lib/libQt5Core.so.5
#10 0x00007f5772f2a3e9 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007f5774b98293 in clone () from /usr/lib/libc.so.6

Thread 11 (Thread 0x7f574dc16640 (LWP 266320)):
#0  0x00007f5775164ca0 in ?? () from /usr/lib/libQt5Core.so.5
#1  0x00007f57725a24cf in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#2  0x00007f57725f65d6 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007f57725a1121 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007f577516495c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f577510a65c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007f5774f24ca2 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#7  0x00007f5774f25e8f in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f5772f2a3e9 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f5774b98293 in clone () from /usr/lib/libc.so.6

Thread 10 (Thread 0x7f574ec2c640 (LWP 266305)):
#0  0x00007f5772f309c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007f5774f2c058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /usr/lib/libQt5Core.so.5
#2  0x00007f5774f29fc4 in ?? () from /usr/lib/libQt5Core.so.5
#3  0x00007f5774f25e8f in ?? () from /usr/lib/libQt5Core.so.5
#4  0x00007f5772f2a3e9 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007f5774b98293 in clone () from /usr/lib/libc.so.6

Thread 9 (Thread 0x7f574f42d640 (LWP 266304)):
#0  0x00007f5772f309c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007f5774f2c058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /usr/lib/libQt5Core.so.5
#2  0x00007f5774f29fc4 in ?? () from /usr/lib/libQt5Core.so.5
#3  0x00007f5774f25e8f in ?? () from /usr/lib/libQt5Core.so.5
#4  0x00007f5772f2a3e9 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007f5774b98293 in clone () from /usr/lib/libc.so.6

Thread 8 (Thread 0x7f574ffff640 (LWP 266303)):
#0  0x00007f5772f309c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007f5774f2c058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /usr/lib/libQt5Core.so.5
#2  0x00007f5774f29fc4 in ?? () from /usr/lib/libQt5Core.so.5
#3  0x00007f5774f25e8f in ?? () from /usr/lib/libQt5Core.so.5
#4  0x00007f5772f2a3e9 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007f5774b98293 in clone () from /usr/lib/libc.so.6

Thread 7 (Thread 0x7f575c9cb640 (LWP 266302)):
#0  0x00007f5772f309c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007f5774f2c058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /usr/lib/libQt5Core.so.5
#2  0x00007f5774f29fc4 in ?? () from /usr/lib/libQt5Core.so.5
#3  0x00007f5774f25e8f in ?? () from /usr/lib/libQt5Core.so.5
#4  0x00007f5772f2a3e9 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007f5774b98293 in clone () from /usr/lib/libc.so.6

Thread 6 (Thread 0x7f575d1cc640 (LWP 266301)):
#0  0x00007f5772f309c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007f5774f2c058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /usr/lib/libQt5Core.so.5
#2  0x00007f5774f29fc4 in ?? () from /usr/lib/libQt5Core.so.5
#3  0x00007f5774f25e8f in ?? () from /usr/lib/libQt5Core.so.5
#4  0x00007f5772f2a3e9 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007f5774b98293 in clone () from /usr/lib/libc.so.6

Thread 5 (Thread 0x7f575d9cd640 (LWP 266300)):
#0  0x00007f5772f309c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007f5774f2c058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /usr/lib/libQt5Core.so.5
#2  0x00007f5774f29fc4 in ?? () from /usr/lib/libQt5Core.so.5
#3  0x00007f5774f25e8f in ?? () from /usr/lib/libQt5Core.so.5
#4  0x00007f5772f2a3e9 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007f5774b98293 in clone () from /usr/lib/libc.so.6

Thread 4 (Thread 0x7f575e1ce640 (LWP 266299)):
#0  0x00007f5772f309c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007f5774f2c058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /usr/lib/libQt5Core.so.5
#2  0x00007f5774f29fc4 in ?? () from /usr/lib/libQt5Core.so.5
#3  0x00007f5774f25e8f in ?? () from /usr/lib/libQt5Core.so.5
#4  0x00007f5772f2a3e9 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007f5774b98293 in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7f575e9cf640 (LWP 266298)):
#0  0x00007f5772f309c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007f5774f2c058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /usr/lib/libQt5Core.so.5
#2  0x00007f5774f29fc4 in ?? () from /usr/lib/libQt5Core.so.5
#3  0x00007f5774f25e8f in ?? () from /usr/lib/libQt5Core.so.5
#4  0x00007f5772f2a3e9 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007f5774b98293 in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7f5766a6d640 (LWP 266288)):
#0  0x00007f577857b586 in _dl_update_slotinfo () from /lib64/ld-linux-x86-64.so.2
#1  0x00007f577857b5fc in update_get_addr () from /lib64/ld-linux-x86-64.so.2
#2  0x00007f5778580ecc in __tls_get_addr () from /lib64/ld-linux-x86-64.so.2
#3  0x00007f5774f25337 in ?? () from /usr/lib/libQt5Core.so.5
#4  0x00007f577516482b in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007f57725a24cf in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#6  0x00007f57725f65d6 in ?? () from /usr/lib/libglib-2.0.so.0
#7  0x00007f57725a1121 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#8  0x00007f577516495c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#9  0x00007f577510a65c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#10 0x00007f5774f24ca2 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#11 0x00007f5772f5c098 in ?? () from /usr/lib/libQt5DBus.so.5
#12 0x00007f5774f25e8f in ?? () from /usr/lib/libQt5Core.so.5
#13 0x00007f5772f2a3e9 in start_thread () from /usr/lib/libpthread.so.0
#14 0x00007f5774b98293 in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7f576fa57cc0 (LWP 266283)):
#0  0x00007f5774b7ed6b in sched_yield () from /usr/lib/libc.so.6
#1  0x00007f576d7db029 in ?? () from /usr/lib/libnvidia-glcore.so.455.28
#2  0x00007f576d7db4ad in ?? () from /usr/lib/libnvidia-glcore.so.455.28
#3  0x00007f576d72236c in ?? () from /usr/lib/libnvidia-glcore.so.455.28
#4  0x00007f576d722cdc in ?? () from /usr/lib/libnvidia-glcore.so.455.28
#5  0x00007f576d724111 in ?? () from /usr/lib/libnvidia-glcore.so.455.28
#6  0x00007f576d6adeaa in ?? () from /usr/lib/libnvidia-glcore.so.455.28
#7  0x00007f576d6b235a in ?? () from /usr/lib/libnvidia-glcore.so.455.28
#8  0x00007f576d6b3301 in ?? () from /usr/lib/libnvidia-glcore.so.455.28
#9  0x00007f576d2a77a7 in ?? () from /usr/lib/libnvidia-glcore.so.455.28
#10 0x00007f576d2a9872 in ?? () from /usr/lib/libnvidia-glcore.so.455.28
#11 0x00007f57774fb325 in KisOpenGLCanvas2::paintToolOutline(QPainterPath const&) () from /usr/lib/libkritaui.so.20
#12 0x00007f577751713c in KisTool::paintToolOutline(QPainter*, QPainterPath const&) () from /usr/lib/libkritaui.so.20
#13 0x00007f5777529c08 in KisToolPaint::paint(QPainter&, KoViewConverter const&) () from /usr/lib/libkritaui.so.20
#14 0x00007f5777326703 in KisCanvasWidgetBase::drawDecorations(QPainter&, QRect const&) const () from /usr/lib/libkritaui.so.20
#15 0x00007f57774f9e6b in KisOpenGLCanvas2::renderDecorations(QRect const&) () from /usr/lib/libkritaui.so.20
#16 0x00007f57774fdfb9 in KisOpenGLCanvas2::paintGL() () from /usr/lib/libkritaui.so.20
#17 0x00007f5775c310bd in ?? () from /usr/lib/libQt5Widgets.so.5
#18 0x00007f57774fedda in KisOpenGLCanvas2::paintEvent(QPaintEvent*) () from /usr/lib/libkritaui.so.20
#19 0x00007f5775c12b0e in QWidget::event(QEvent*) () from /usr/lib/libQt5Widgets.so.5
#20 0x00007f5775bd1752 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#21 0x00007f5777655d5a in KisApplication::notify(QObject*, QEvent*) () from /usr/lib/libkritaui.so.20
#22 0x00007f577510bcda in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#23 0x00007f5775c0a8e8 in QWidgetPrivate::sendPaintEvent(QRegion const&) () from /usr/lib/libQt5Widgets.so.5
#24 0x00007f5775c0b15c in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /usr/lib/libQt5Widgets.so.5
#25 0x00007f5775c0c520 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /usr/lib/libQt5Widgets.so.5
#26 0x00007f5775c0ae6d in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /usr/lib/libQt5Widgets.so.5
#27 0x00007f5775c0c520 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /usr/lib/libQt5Widgets.so.5
#28 0x00007f5775c0ae6d in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /usr/lib/libQt5Widgets.so.5
#29 0x00007f5775c0c520 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /usr/lib/libQt5Widgets.so.5
#30 0x00007f5775c0c336 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /usr/lib/libQt5Widgets.so.5
#31 0x00007f5775c0c336 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /usr/lib/libQt5Widgets.so.5
#32 0x00007f5775c0ae6d in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /usr/lib/libQt5Widgets.so.5
#33 0x00007f5775c0c520 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /usr/lib/libQt5Widgets.so.5
#34 0x00007f5775c0ae6d in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /usr/lib/libQt5Widgets.so.5
#35 0x00007f5775c0c520 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /usr/lib/libQt5Widgets.so.5
#36 0x00007f5775c0ae6d in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /usr/lib/libQt5Widgets.so.5
#37 0x00007f5775c0c520 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /usr/lib/libQt5Widgets.so.5
#38 0x00007f5775c0ae6d in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /usr/lib/libQt5Widgets.so.5
#39 0x00007f5775c0c520 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /usr/lib/libQt5Widgets.so.5
#40 0x00007f5775c0ae6d in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /usr/lib/libQt5Widgets.so.5
#41 0x00007f5775c0c520 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /usr/lib/libQt5Widgets.so.5
#42 0x00007f5775c0c336 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /usr/lib/libQt5Widgets.so.5
#43 0x00007f5775c0c336 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /usr/lib/libQt5Widgets.so.5
#44 0x00007f5775c0c336 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /usr/lib/libQt5Widgets.so.5
#45 0x00007f5775c0ae6d in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, QFlags<QWidgetPrivate::DrawWidgetFlag>, QPainter*, QWidgetRepaintManager*) () from /usr/lib/libQt5Widgets.so.5
#46 0x00007f5775be231c in ?? () from /usr/lib/libQt5Widgets.so.5
#47 0x00007f5775c1325b in QWidget::event(QEvent*) () from /usr/lib/libQt5Widgets.so.5
#48 0x00007f57762b32aa in KXmlGuiWindow::event(QEvent*) () from /usr/lib/libkritawidgetutils.so.20
#49 0x00007f5775bd1752 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#50 0x00007f5777655d5a in KisApplication::notify(QObject*, QEvent*) () from /usr/lib/libkritaui.so.20
#51 0x00007f577510bcda in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#52 0x00007f577510e7d3 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQt5Core.so.5
#53 0x00007f5775165304 in ?? () from /usr/lib/libQt5Core.so.5
#54 0x00007f57725a2914 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#55 0x00007f57725f67d1 in ?? () from /usr/lib/libglib-2.0.so.0
#56 0x00007f57725a1121 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#57 0x00007f5775164941 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#58 0x00007f577510a65c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#59 0x00007f5775112af4 in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5
#60 0x0000563816267088 in main ()
[Inferior 1 (process 266283) detached]

Possible duplicates by query: bug 62872, bug 61184, bug 403978, bug 366741, bug 346990.

Reported using DrKonqi
Comment 1 Tiar 2020-11-18 16:09:43 UTC 
There is a crash log, so it's confirmed.
Comment 2 Raghavendra kamath 2021-01-31 05:54:04 UTC 
Created attachment 135320 [details]
New crash information added by DrKonqi

krita (5.0.0-prealpha (git 515589e)) using Qt 5.15.2

- What I was doing when the application crashed:

I was painting successive strokes with Gpen

-- Backtrace (Reduced):
#5  0x00007fb74b66f451 in QMdiArea::eventFilter(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#6  0x00007fb74aa326b6 in QCoreApplicationPrivate::sendThroughApplicationEventFilters(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#7  0x00007fb74b503792 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#8  0x00007fb74ecb17a9 in KisApplication::notify(QObject*, QEvent*) (this=<optimized out>, receiver=0x564e88a07b90, event=0x564ed4830b10) at /mnt/attic/krita-build/src/krita/libs/ui/KisApplication.cpp:714
#9  0x00007fb74aa32a7a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
Comment 3 Halla Rempt 2021-01-31 13:33:28 UTC 
In the original crash log, it's a bit hard to figure out _what_ happened. gdb apparently says the crashing thread is thread 1, making it a crash in the nvidia driver. But thread 24 has an abort, when creating a new QImage.
Comment 4 Raghavendra kamath 2021-02-02 12:52:17 UTC 
Got the crash today several times for almost whole drawing session of 8hrs.

I don't know if this backtrace is helpful

Thread 1 "krita" received signal SIGSEGV, Segmentation fault.
0x00007ffff4b20918 in QMetaObject::cast(QObject const*) const () from /usr/lib/libQt5Core.so.5
(gdb) thread apply all bt

Thread 554 (Thread 0x7fff16ff5640 (LWP 39304) "Thread (pooled)"):
#0  0x00007ffff290d9c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007ffff4936058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007ffff4933504 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007ffff492ff0f in  () at /usr/lib/libQt5Core.so.5
#4  0x00007ffff29073e9 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007ffff45a2293 in clone () at /usr/lib/libc.so.6

Thread 553 (Thread 0x7fff197fa640 (LWP 39303) "Thread (pooled)"):
#0  0x00007ffff290d9c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007ffff4936058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007ffff4933504 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007ffff492ff0f in  () at /usr/lib/libQt5Core.so.5
#4  0x00007ffff29073e9 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007ffff45a2293 in clone () at /usr/lib/libc.so.6

Thread 552 (Thread 0x7fff71ffe640 (LWP 39302) "Thread (pooled)"):
#0  0x00007ffff290d9c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007ffff4936058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007ffff4933504 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007ffff492ff0f in  () at /usr/lib/libQt5Core.so.5
#4  0x00007ffff29073e9 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007ffff45a2293 in clone () at /usr/lib/libc.so.6

Thread 551 (Thread 0x7fff8eaaf640 (LWP 39301) "Thread (pooled)"):
#0  0x00007ffff290d9c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007ffff4936058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007ffff4933504 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007ffff492ff0f in  () at /usr/lib/libQt5Core.so.5
#4  0x00007ffff29073e9 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007ffff45a2293 in clone () at /usr/lib/libc.so.6

Thread 550 (Thread 0x7fff167f4640 (LWP 39300) "Thread (pooled)"):
#0  0x00007ffff290d9c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007ffff4936058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007ffff4933504 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007ffff492ff0f in  () at /usr/lib/libQt5Core.so.5
#4  0x00007ffff29073e9 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007ffff45a2293 in clone () at /usr/lib/libc.so.6

Thread 549 (Thread 0x7fff177f6640 (LWP 39299) "Thread (pooled)"):
#0  0x00007ffff290d9c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007ffff4936058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007ffff4933504 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007ffff492ff0f in  () at /usr/lib/libQt5Core.so.5
#4  0x00007ffff29073e9 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007ffff45a2293 in clone () at /usr/lib/libc.so.6

Thread 548 (Thread 0x7fff17ff7640 (LWP 39298) "Thread (pooled)"):
#0  0x00007ffff290d9c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007ffff4936058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007ffff4933504 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007ffff492ff0f in  () at /usr/lib/libQt5Core.so.5
#4  0x00007ffff29073e9 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007ffff45a2293 in clone () at /usr/lib/libc.so.6

--Type <RET> for more, q to quit, c to continue without paging--
Thread 547 (Thread 0x7fff187f8640 (LWP 39297) "Thread (pooled)"):
#0  0x00007ffff290d9c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007ffff4936058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007ffff4933504 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007ffff492ff0f in  () at /usr/lib/libQt5Core.so.5
#4  0x00007ffff29073e9 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007ffff45a2293 in clone () at /usr/lib/libc.so.6

Thread 263 (Thread 0x7fffd1b8c640 (LWP 38343) "Thread (pooled)"):
#0  0x00007ffff290d9c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007ffff4936058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007ffff4933504 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007ffff492ff0f in  () at /usr/lib/libQt5Core.so.5
#4  0x00007ffff29073e9 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007ffff45a2293 in clone () at /usr/lib/libc.so.6

Thread 262 (Thread 0x7fffd2b8f640 (LWP 38342) "Thread (pooled)"):
#0  0x00007ffff290d9c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007ffff4936058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007ffff4933504 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007ffff492ff0f in  () at /usr/lib/libQt5Core.so.5
#4  0x00007ffff29073e9 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007ffff45a2293 in clone () at /usr/lib/libc.so.6

Thread 261 (Thread 0x7fff18ff9640 (LWP 38341) "Thread (pooled)"):
#0  0x00007ffff290d9c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007ffff4936058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007ffff4933504 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007ffff492ff0f in  () at /usr/lib/libQt5Core.so.5
#4  0x00007ffff29073e9 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007ffff45a2293 in clone () at /usr/lib/libc.so.6

Thread 228 (Thread 0x7fff1affb640 (LWP 38242) "Thread (pooled)"):
#0  0x00007ffff290d9c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007ffff4936058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007ffff4933504 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007ffff492ff0f in  () at /usr/lib/libQt5Core.so.5
#4  0x00007ffff29073e9 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007ffff45a2293 in clone () at /usr/lib/libc.so.6

Thread 194 (Thread 0x7fffd4391640 (LWP 38083) "Thread (pooled)"):
#0  0x00007ffff290d9c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007ffff4936058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007ffff4933504 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007ffff492ff0f in  () at /usr/lib/libQt5Core.so.5
#4  0x00007ffff29073e9 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007ffff45a2293 in clone () at /usr/lib/libc.so.6

Thread 193 (Thread 0x7fffd238d640 (LWP 38082) "Thread (pooled)"):
#0  0x00007ffff290d9c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007ffff4936058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007ffff4933504 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007ffff492ff0f in  () at /usr/lib/libQt5Core.so.5
#4  0x00007ffff29073e9 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007ffff45a2293 in clone () at /usr/lib/libc.so.6

Thread 192 (Thread 0x7fffbbfff640 (LWP 38081) "Thread (pooled)"):
--Type <RET> for more, q to quit, c to continue without paging--
#0  0x00007ffff290d9c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007ffff4936058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007ffff4933504 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007ffff492ff0f in  () at /usr/lib/libQt5Core.so.5
#4  0x00007ffff29073e9 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007ffff45a2293 in clone () at /usr/lib/libc.so.6

Thread 191 (Thread 0x7fffd0fba640 (LWP 38080) "Thread (pooled)"):
#0  0x00007ffff290d9c8 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007ffff4936058 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007ffff4933504 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007ffff492ff0f in  () at /usr/lib/libQt5Core.so.5
#4  0x00007ffff29073e9 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007ffff45a2293 in clone () at /usr/lib/libc.so.6

Thread 21 (Thread 0x7fff951c5640 (LWP 36736) "QQuickPixmapRea"):
#0  0x00007ffff459746f in poll () at /usr/lib/libc.so.6
#1  0x00007ffff1f9c93f in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff1f472b1 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007ffff4b706e1 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5                                                                                                   
#4  0x00007ffff4b163fc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007ffff492ed22 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fffecfb31eb in  () at /usr/lib/libQt5Quick.so.5
#7  0x00007ffff492ff0f in  () at /usr/lib/libQt5Core.so.5
#8  0x00007ffff29073e9 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007ffff45a2293 in clone () at /usr/lib/libc.so.6

Thread 20 (Thread 0x7fffb97e6640 (LWP 36735) "QQmlThread"):
#0  0x00007ffff459746f in poll () at /usr/lib/libc.so.6
#1  0x00007ffff1f9c93f in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff1f472b1 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007ffff4b706e1 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5                                                                                                   
#4  0x00007ffff4b163fc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007ffff492ed22 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fffecd185a9 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007ffff492ff0f in  () at /usr/lib/libQt5Core.so.5
#8  0x00007ffff29073e9 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007ffff45a2293 in clone () at /usr/lib/libc.so.6

Thread 19 (Thread 0x7fffb8fe5640 (LWP 36734) "KisTileDataSwap"):
#0  0x00007ffff4569c51 in clock_nanosleep@GLIBC_2.2.5 () at /usr/lib/libc.so.6
#1  0x00007ffff456f137 in nanosleep () at /usr/lib/libc.so.6
#2  0x00007ffff4b7003f in  () at /usr/lib/libQt5Core.so.5
#3  0x00007ffff5edfc5b in KisTileDataSwapper::run() () at /usr/lib/libkritaimage.so.20
#4  0x00007ffff492ff0f in  () at /usr/lib/libQt5Core.so.5
#5  0x00007ffff29073e9 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007ffff45a2293 in clone () at /usr/lib/libc.so.6

Thread 16 (Thread 0x7fffba7e8640 (LWP 36731) "QNetworkAccessM"):
#0  0x00007ffff459746f in poll () at /usr/lib/libc.so.6
#1  0x00007ffff1f9c93f in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff1f472b1 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007ffff4b706fc in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5                                                                                                   
#4  0x00007ffff4b163fc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
--Type <RET> for more, q to quit, c to continue without paging--
#5  0x00007ffff492ed22 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007ffff492ff0f in  () at /usr/lib/libQt5Core.so.5
#7  0x00007ffff29073e9 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007ffff45a2293 in clone () at /usr/lib/libc.so.6

Thread 15 (Thread 0x7fffbafe9640 (LWP 36721) "Qt bearer threa"):
#0  0x00007ffff459746f in poll () at /usr/lib/libc.so.6
#1  0x00007ffff1f9c93f in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff1f472b1 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007ffff4b706e1 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007ffff4b163fc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007ffff492ed22 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007ffff492ff0f in  () at /usr/lib/libQt5Core.so.5
#7  0x00007ffff29073e9 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007ffff45a2293 in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7fffe5f94640 (LWP 36699) "QDBusConnection"):
#0  0x00007ffff459746f in poll () at /usr/lib/libc.so.6
#1  0x00007ffff1f9c93f in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff1f472b1 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007ffff4b706e1 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007ffff4b163fc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007ffff492ed22 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007ffff2939098 in  () at /usr/lib/libQt5DBus.so.5
#7  0x00007ffff492ff0f in  () at /usr/lib/libQt5Core.so.5
#8  0x00007ffff29073e9 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007ffff45a2293 in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7fffeec36640 (LWP 36698) "QXcbEventQueue"):
#0  0x00007ffff459746f in poll () at /usr/lib/libc.so.6
#1  0x00007ffff1d3c63b in  () at /usr/lib/libxcb.so.1
#2  0x00007ffff1d3e37b in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007fffeed43131 in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007ffff492ff0f in  () at /usr/lib/libQt5Core.so.5
#5  0x00007ffff29073e9 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007ffff45a2293 in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7fffef1d2840 (LWP 36691) "krita"):
#0  0x00007ffff4b20918 in QMetaObject::cast(QObject const*) const () at /usr/lib/libQt5Core.so.5
#1  0x00007ffff56324c4 in  () at /usr/lib/libQt5Widgets.so.5
#2  0x00007ffff55e8026 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#3  0x00007ffff70af04a in KisApplication::notify(QObject*, QEvent*) () at /usr/lib/libkritaui.so.20
#4  0x00007ffff4b17a7a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#5  0x00007ffff4b6fa65 in QTimerInfoList::activateTimers() () at /usr/lib/libQt5Core.so.5
#6  0x00007ffff4b70312 in  () at /usr/lib/libQt5Core.so.5
#7  0x00007ffff1f48a84 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#8  0x00007ffff1f9c9b1 in  () at /usr/lib/libglib-2.0.so.0
#9  0x00007ffff1f472b1 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#10 0x00007ffff4b706e1 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#11 0x00007ffff4b163fc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#12 0x00007ffff4b1e894 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#13 0x0000555555e2704b in main ()
Comment 5 Halla Rempt 2021-04-12 15:40:52 UTC 
I suspect the new code in QImage in Qt 5.15 has something to do with this.
Comment 6 Dmitry Kazakov 2021-07-30 10:39:27 UTC 
The crash is surely related to Qt 5.15. We don't support that, so I'll close the bug as upstream.