SUMMARY

I've built Krita 4.3.0 by myself (git 88342ec)
When I close krita, a segmentation fault occurs




STEPS TO REPRODUCE
1. Launch Krita
2. Exit krita (Menu FILE > QUIT )

OBSERVED RESULT
Error message:

corrupted size vs. prev_size while consolidating

Thread 1 "krita" received signal SIGABRT, Aborted.
__GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
50	../sysdeps/unix/sysv/linux/raise.c: Aucun fichier ou dossier de ce type.
(gdb) thread apply all bt

Thread 12 (Thread 0x7fffc5c31700 (LWP 14304)):
#0  0x00007ffff18a2819 in __GI___poll (fds=0x7fffbc0049b0, nfds=2, timeout=135117) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff06cd136 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff06cd25c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff1f53727 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ffff1f0115b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ffff1d50e76 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ffff1d5aa67 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ffff126efa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#8  0x00007ffff18ad4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fffeb770140 (LWP 14258)):
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#1  0x00007ffff17d6535 in __GI_abort () at abort.c:79
#2  0x00007ffff182d508 in __libc_message (action=action@entry=do_abort, fmt=fmt@entry=0x7ffff193828d "%s\n") at ../sysdeps/posix/libc_fatal.c:181
#3  0x00007ffff1833c1a in malloc_printerr (str=str@entry=0x7ffff193a068 "corrupted size vs. prev_size while consolidating") at malloc.c:5341
#4  0x00007ffff1835896 in _int_free (av=0x7ffff196fc40 <main_arena>, p=0x555562c13430, have_lock=<optimized out>) at malloc.c:4324
#5  0x00007ffff17ee2b7 in __cxa_finalize (d=0x7ffff7cc9300) at cxa_finalize.c:83
#6  0x00007ffff6bc65f3 in __do_global_dtors_aux () from /home/grum/Dev/krita_master/install/lib/x86_64-linux-gnu/libkritaui.so.19
#7  0x00007fffffffddf0 in ?? ()
#8  0x00007ffff7fe46f6 in _dl_fini () at dl-fini.c:138
Backtrace stopped: frame did not save the PC



(gdb) n
Single stepping until exit from function _ZN6KCrash19defaultCrashHandlerEi,
which has no line number information.
KCrash: crashing... crashRecursionCounter = 2
KCrash: Application Name = krita path = /home/grum/Dev/krita_master/install/bin pid = 14258
KCrash: Arguments: /home/grum/Dev/krita_master/install/bin/krita 
KCrash: Attempting to start /usr/lib/x86_64-linux-gnu/libexec/drkonqi from kdeinit
sock_file=/run/user/1000/kdeinit5__2

Thread 1 "krita" received signal SIGSTOP, Stopped (signal).
0x00007ffff187a720 in __GI___nanosleep (requested_time=0x7fffffffc5e0, remaining=0x7fffffffc5e0) at ../sysdeps/unix/sysv/linux/nanosleep.c:28
28	../sysdeps/unix/sysv/linux/nanosleep.c: Aucun fichier ou dossier de ce type.
(gdb) thread apply all bt

Thread 12 (Thread 0x7fffc5c31700 (LWP 14304)):
#0  0x00007ffff18a2819 in __GI___poll (fds=0x7fffbc0049b0, nfds=2, timeout=125415) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff06cd136 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff06cd25c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff1f53727 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ffff1f0115b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ffff1d50e76 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ffff1d5aa67 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ffff126efa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#8  0x00007ffff18ad4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fffeb770140 (LWP 14258)):
#0  0x00007ffff187a720 in __GI___nanosleep (requested_time=0x7fffffffc5e0, remaining=0x7fffffffc5e0) at ../sysdeps/unix/sysv/linux/nanosleep.c:28
#1  0x00007ffff187a62a in __sleep (seconds=0) at ../sysdeps/posix/sleep.c:55
#2  0x00007ffff6013eea in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Crash.so.5
#3  0x00007ffff601468e in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Crash.so.5
#4  0x00007ffff6014be7 in KCrash::defaultCrashHandler(int) () from /usr/lib/x86_64-linux-gnu/libKF5Crash.so.5
#5  <signal handler called>
#6  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#7  0x00007ffff17d6535 in __GI_abort () at abort.c:79
#8  0x00007ffff182d508 in __libc_message (action=action@entry=do_abort, fmt=fmt@entry=0x7ffff193828d "%s\n") at ../sysdeps/posix/libc_fatal.c:181
#9  0x00007ffff1833c1a in malloc_printerr (str=str@entry=0x7ffff193a068 "corrupted size vs. prev_size while consolidating") at malloc.c:5341
#10 0x00007ffff1835896 in _int_free (av=0x7ffff196fc40 <main_arena>, p=0x555562c13430, have_lock=<optimized out>) at malloc.c:4324
#11 0x00007ffff17ee2b7 in __cxa_finalize (d=0x7ffff7cc9300) at cxa_finalize.c:83
#12 0x00007ffff6bc65f3 in __do_global_dtors_aux () from /home/grum/Dev/krita_master/install/lib/x86_64-linux-gnu/libkritaui.so.19
#13 0x00007fffffffddf0 in ?? ()
#14 0x00007ffff7fe46f6 in _dl_fini () at dl-fini.c:138
Backtrace stopped: frame did not save the PC




EXPECTED RESULT
Krita doesn't crash on exit 


SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 5.14.5
KDE Frameworks Version: 5.54.0

Krita
 Version: 4.3.0-beta1 (git 88342ec)
 Languages: en_GB, en, fr, fr_FR, fr
 Hidpi: true

Qt
  Version (compiled): 5.11.3
  Version (loaded): 5.11.3

OS Information
  Build ABI: x86_64-little_endian-lp64
  Build CPU: x86_64
  CPU: x86_64
  Kernel Type: linux
  Kernel Version: 4.19.0-9-amd64
  Pretty Productname: Debian GNU/Linux 10 (buster)
  Product Type: debian
  Product Version: 10
  Desktop: KDE


ADDITIONAL INFORMATION
Seems similar to https://bugs.kde.org/show_bug.cgi?id=392073 

Note that when using Appimage (krita-4.3.0-beta1-5a643ab-x86_64.appimage) the problem doesn't occurs