Bug 399326

Summary: [Liquify-tranform] Crash when hitting enter, backtrace ★★★
Product: [Applications] krita Reporter: David REVOY <info>
Component: Tools/TransformAssignee: Krita Bugs <krita-bugs-null>
Status: RESOLVED FIXED    
Severity: crash CC: halla
Priority: NOR    
Version: git master (please specify the git hash!)   
Target Milestone: ---   
Platform: Compiled Sources   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description David REVOY 2018-10-03 05:30:09 UTC 
Hi, 

Here is a crash with Liquify (after hitting enter to bake the result), using Git~master of yesterday on Kubuntu 18.04. Non reproducible in the same exact usage but with a three star backtrace; so I paste it here in case it is useful. In case it's not, please close the report immediately. Thank you!

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 0x7f5e94a46800 (LWP 2062))]

Thread 16 (Thread 0x7f5e18bf9700 (LWP 6897)):
#0  0x00007f5e8a7fced9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f5e18bf8c40, expected=0, futex_word=0x7f5dc43c6250) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f5e18bf8d00, mutex=0x7f5dc43c6200, cond=0x7f5dc43c6228) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f5dc43c6228, mutex=0x7f5dc43c6200, abstime=0x7f5e18bf8d00) at pthread_cond_wait.c:667
#3  0x00007f5e9170d458 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f5e9170952d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f5e9170c16d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f5e8a7f66db in start_thread (arg=0x7f5e18bf9700) at pthread_create.c:463
#7  0x00007f5e90def88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f5e19bfb700 (LWP 6896)):
#0  0x00007f5e8a7fced9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f5e19bfac40, expected=0, futex_word=0x7f5dc50e4040) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f5e19bfad00, mutex=0x7f5dc50e3ff0, cond=0x7f5dc50e4018) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f5dc50e4018, mutex=0x7f5dc50e3ff0, abstime=0x7f5e19bfad00) at pthread_cond_wait.c:667
#3  0x00007f5e9170d458 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f5e9170952d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f5e9170c16d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f5e8a7f66db in start_thread (arg=0x7f5e19bfb700) at pthread_create.c:463
#7  0x00007f5e90def88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f5e1bfff700 (LWP 6895)):
#0  0x00007f5e8a7fced9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f5e1bffec40, expected=0, futex_word=0x7f5da4700150) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f5e1bffed00, mutex=0x7f5da4700100, cond=0x7f5da4700128) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f5da4700128, mutex=0x7f5da4700100, abstime=0x7f5e1bffed00) at pthread_cond_wait.c:667
#3  0x00007f5e9170d458 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f5e9170952d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f5e9170c16d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f5e8a7f66db in start_thread (arg=0x7f5e1bfff700) at pthread_create.c:463
#7  0x00007f5e90def88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f5e293fd700 (LWP 6894)):
#0  0x00007f5e8a7fced9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f5e293fcc40, expected=0, futex_word=0x7f5d9c6523c0) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f5e293fcd00, mutex=0x7f5d9c652370, cond=0x7f5d9c652398) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f5d9c652398, mutex=0x7f5d9c652370, abstime=0x7f5e293fcd00) at pthread_cond_wait.c:667
#3  0x00007f5e9170d458 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f5e9170952d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f5e9170c16d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f5e8a7f66db in start_thread (arg=0x7f5e293fd700) at pthread_create.c:463
#7  0x00007f5e90def88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f5e1a3fc700 (LWP 6893)):
#0  0x00007f5e8a7fced9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f5e1a3fbc40, expected=0, futex_word=0x7f5e34be8b10) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f5e1a3fbd00, mutex=0x7f5e34be8ac0, cond=0x7f5e34be8ae8) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f5e34be8ae8, mutex=0x7f5e34be8ac0, abstime=0x7f5e1a3fbd00) at pthread_cond_wait.c:667
#3  0x00007f5e9170d458 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f5e9170952d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f5e9170c16d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f5e8a7f66db in start_thread (arg=0x7f5e1a3fc700) at pthread_create.c:463
#7  0x00007f5e90def88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f5e193fa700 (LWP 6892)):
#0  0x00007f5e8a7fced9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f5e193f9c40, expected=0, futex_word=0x7f5e3492ad50) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f5e193f9d00, mutex=0x7f5e3492ad00, cond=0x7f5e3492ad28) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f5e3492ad28, mutex=0x7f5e3492ad00, abstime=0x7f5e193f9d00) at pthread_cond_wait.c:667
#3  0x00007f5e9170d458 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f5e9170952d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f5e9170c16d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f5e8a7f66db in start_thread (arg=0x7f5e193fa700) at pthread_create.c:463
#7  0x00007f5e90def88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f5e1abfd700 (LWP 6891)):
#0  0x00007f5e8a7fced9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f5e1abfcc40, expected=0, futex_word=0x7f5e34cadfb4) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f5e1abfcd00, mutex=0x7f5e34cadf60, cond=0x7f5e34cadf88) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f5e34cadf88, mutex=0x7f5e34cadf60, abstime=0x7f5e1abfcd00) at pthread_cond_wait.c:667
#3  0x00007f5e9170d458 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f5e9170952d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f5e9170c16d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f5e8a7f66db in start_thread (arg=0x7f5e1abfd700) at pthread_create.c:463
#7  0x00007f5e90def88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f5e1b7fe700 (LWP 6890)):
#0  0x00007f5e8a7fced9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f5e1b7fdc40, expected=0, futex_word=0x55ce7d83e660) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f5e1b7fdd00, mutex=0x55ce7d83e610, cond=0x55ce7d83e638) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x55ce7d83e638, mutex=0x55ce7d83e610, abstime=0x7f5e1b7fdd00) at pthread_cond_wait.c:667
#3  0x00007f5e9170d458 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f5e9170952d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f5e9170c16d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f5e8a7f66db in start_thread (arg=0x7f5e1b7fe700) at pthread_create.c:463
#7  0x00007f5e90def88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f5e3effe700 (LWP 2105)):
#0  0x00007f5e91944032 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007f5e89170e51 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e891713e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e8917154c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5e9194390b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f5e918e89ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f5e9170722a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f5e9170c16d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f5e8a7f66db in start_thread (arg=0x7f5e3effe700) at pthread_create.c:463
#9  0x00007f5e90def88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f5e3ffff700 (LWP 2104)):
#0  __tls_get_addr () at ../sysdeps/x86_64/tls_get_addr.S:30
#1  0x00007f5e9170aff6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f5e91943d01 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f5e89170e51 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5e891713e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f5e8917154c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f5e9194390b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f5e918e89ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f5e9170722a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f5e76efb6f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f5e9170c16d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f5e8a7f66db in start_thread (arg=0x7f5e3ffff700) at pthread_create.c:463
#12 0x00007f5e90def88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f5e4f7fe700 (LWP 2103)):
#0  0x00007f5e8a7fc9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55ce2eb46964) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55ce2eb46910, cond=0x55ce2eb46938) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55ce2eb46938, mutex=0x55ce2eb46910) at pthread_cond_wait.c:655
#3  0x00007f5e9170d59b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f5e91705e5f in QSemaphore::tryAcquire(int, int) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f5e8ea2ae03 in KisTileDataSwapper::waitForWork (this=<optimized out>) at /home/deevad/sources/krita/src/libs/image/tiles3/swap/kis_tile_data_swapper.cpp:86
#6  0x00007f5e8ea2b03a in KisTileDataSwapper::run (this=0x7f5e8ef1bcc0 <_ZZN12_GLOBAL__N_116Q_QGS_s_instance13innerFunctionEvE6holder+64>) at /home/deevad/sources/krita/src/libs/image/tiles3/swap/kis_tile_data_swapper.cpp:92
#7  0x00007f5e9170c16d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f5e8a7f66db in start_thread (arg=0x7f5e4f7fe700) at pthread_create.c:463
#9  0x00007f5e90def88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f5e4ffff700 (LWP 2102)):
#0  0x00007f5e8a7fc9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55ce2eb466b0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55ce2eb46660, cond=0x55ce2eb46688) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55ce2eb46688, mutex=0x55ce2eb46660) at pthread_cond_wait.c:655
#3  0x00007f5e9170d59b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f5e91705c0b in QSemaphore::acquire(int) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f5e8ea0be7a in KisTileDataPooler::waitForWork (this=0x7f5e8ef1bc80 <_ZZN12_GLOBAL__N_116Q_QGS_s_instance13innerFunctionEvE6holder>) at /home/deevad/sources/krita/src/libs/image/tiles3/kis_tile_data_pooler.cc:164
#6  0x00007f5e8ea0c6fa in KisTileDataPooler::run (this=0x7f5e8ef1bc80 <_ZZN12_GLOBAL__N_116Q_QGS_s_instance13innerFunctionEvE6holder>) at /home/deevad/sources/krita/src/libs/image/tiles3/kis_tile_data_pooler.cc:186
#7  0x00007f5e9170c16d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f5e8a7f66db in start_thread (arg=0x7f5e4ffff700) at pthread_create.c:463
#9  0x00007f5e90def88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f5e559d3700 (LWP 2101)):
#0  0x00007f5e891b6d94 in g_mutex_unlock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f5e89171556 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e9194390b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f5e918e89ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f5e9170722a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f5e9170c16d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f5e8a7f66db in start_thread (arg=0x7f5e559d3700) at pthread_create.c:463
#7  0x00007f5e90def88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f5e71877700 (LWP 2064)):
#0  0x00007f5e90de2bf9 in __GI___poll (fds=0x7f5e6c0195f0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f5e89171439 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5e8917154c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5e9194390b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f5e918e89ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f5e9170722a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f5e8aa23d45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f5e9170c16d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f5e8a7f66db in start_thread (arg=0x7f5e71877700) at pthread_create.c:463
#9  0x00007f5e90def88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f5e7e470700 (LWP 2063)):
#0  0x00007f5e90de2bf9 in __GI___poll (fds=0x7f5e7e46fca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f5e8f17b747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f5e8f17d36a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f5e80bc92a9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f5e9170c16d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f5e8a7f66db in start_thread (arg=0x7f5e7e470700) at pthread_create.c:463
#6  0x00007f5e90def88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f5e94a46800 (LWP 2062)):
[KCrash Handler]
#6  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#7  0x00007f5e90d0e801 in __GI_abort () at abort.c:79
#8  0x00007f5e90d57897 in __libc_message (action=action@entry=do_abort, fmt=fmt@entry=0x7f5e90e84b9a "%s\n") at ../sysdeps/posix/libc_fatal.c:181
#9  0x00007f5e90d5e90a in malloc_printerr (str=str@entry=0x7f5e90e82d88 "free(): invalid pointer") at malloc.c:5350
#10 0x00007f5e90d65e1c in _int_free (have_lock=0, p=0x7f5dc55eb1cf, av=0x7f5e910b9c40 <main_arena>) at malloc.c:4157
#11 __GI___libc_free (mem=0x7f5dc55eb1df) at malloc.c:3124
#12 0x00007f5e9191a140 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f5e9266882c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007f5e926700f4 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007f5e93f22e57 in KisApplication::notify (this=<optimized out>, receiver=0x7f5dc55eb1df, event=0x7f5dc5683040) at /home/deevad/sources/krita/src/libs/ui/KisApplication.cpp:610
#16 0x00007f5e918ea9a8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f5e918ed11d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f5e919442c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f5e89171287 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f5e891714c0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f5e8917154c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f5e919438ef in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f5e918e89ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007f5e918f1a84 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x000055ce21f5ef90 in main (argc=<optimized out>, argv=0x7ffe96772428) at /home/deevad/sources/krita/src/krita/main.cc:435
Comment 1 Halla Rempt 2018-10-06 18:11:36 UTC 
It looks like something is running out of memory, this is an assert in malloc. I don't think we can do something with this, I'm afraid.
Comment 2 David REVOY 2018-10-06 20:01:38 UTC 
No problem, thanks for checking @Boud and have a good evening and Sunday.