https://bugs.kde.org/show_bug.cgi?id=410797

            Bug ID: 410797
           Summary: Krita will occasionally stop receiving input events.
           Product: krita
           Version: git master
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: General
          Assignee: krita-bugs-n...@kde.org
          Reporter: griffinval...@gmail.com
  Target Milestone: ---

SUMMARY
Occasionally Krita will stop responding to input events.

- Freehand brush won't work.
- Selection and Rectangle tools don't look like they do anything.
- Assistant Editor Tool does start with drawing an assistant, but you cannot
finish an assistant.

Dmitry already observed this during the sprint and put extra debug into my
krita build.


-------------------
wolthera@Euthenia:~/krita/build$ gdb krita
GNU gdb (Ubuntu 8.1-0ubuntu3) 8.1.0.20180409-git
Copyright (C) 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from krita...done.
(gdb) run
Starting program: /home/wolthera/krita/inst/bin/krita 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffd3c6a700 (LWP 15621)]
[New Thread 0x7fffcf789700 (LWP 15622)]
[Thread 0x7fffd3c6a700 (LWP 15621) exited]
[Thread 0x7fffcf789700 (LWP 15622) exited]
[New Thread 0x7fffcf789700 (LWP 15623)]
[New Thread 0x7fffd3c6a700 (LWP 15628)]
[Thread 0x7fffcf789700 (LWP 15623) exited]
[Thread 0x7fffd3c6a700 (LWP 15628) exited]
[New Thread 0x7fffd3c6a700 (LWP 15631)]
[New Thread 0x7fffcf789700 (LWP 15632)]
[Thread 0x7fffd3c6a700 (LWP 15631) exited]
[Thread 0x7fffcf789700 (LWP 15632) exited]
[New Thread 0x7fffcf789700 (LWP 15633)]
[New Thread 0x7fffd3c6a700 (LWP 15638)]
[New Thread 0x7fffc4ef9700 (LWP 15639)]
Set style "fusion"
KoColor debug runtime checks are active.
krita.lib.pigment: Illegal XML palette:
"/home/wolthera/.local/share/krita/palettes/colorset.xml"
krita.lib.pigment: Error (line 1 , column 159 ): "Unknown XML palette format.
Expected SCRIBUSCOLORS, found Colorset"
krita.lib.widgets: Loading resource 
"/home/wolthera/.local/share/krita/palettes/colorset.xml" failed. "ko_palettes"
krita.lib.pigment: Illegal XML palette:
"/home/wolthera/.local/share/krita/palettes/profiles.xml"
krita.lib.pigment: Error (line 1 , column 10 ): "Unknown XML palette format.
Expected SCRIBUSCOLORS, found Profiles"
krita.lib.widgets: Loading resource 
"/home/wolthera/.local/share/krita/palettes/profiles.xml" failed. "ko_palettes"
[New Thread 0x7fff94eae700 (LWP 15906)]
QObject::startTimer: Timers cannot have negative intervals
[New Thread 0x7fff92cab700 (LWP 15911)]
[New Thread 0x7fff924aa700 (LWP 15912)]
[Thread 0x7fff92cab700 (LWP 15911) exited]
Comparators already registered for type KoSvgText::AutoValue
Debug stream operator already registered for type KoSvgText::AutoValue
Comparators already registered for type KoSvgText::BackgroundProperty
Debug stream operator already registered for type KoSvgText::BackgroundProperty
Comparators already registered for type KoSvgText::StrokeProperty
Debug stream operator already registered for type KoSvgText::StrokeProperty
/home/wolthera/krita/inst/lib/x86_64-linux-gnu/krita-python-libs/krita added to
PYTHONPATH
krita.scripting: "Traceback (most recent call last):"
krita.scripting: "  File
\"/home/wolthera/krita/inst/share/krita/pykrita/palette_docker/__init__.py\",
line 2, in <module>"
krita.scripting: "    from .palette_docker import *"
krita.scripting: "  File
\"/home/wolthera/krita/inst/share/krita/pykrita/palette_docker/palette_docker.py\",
line 31, in <module>"
krita.scripting: "    class Palette_Docker(DockWidget):"
krita.scripting: "  File
\"/home/wolthera/krita/inst/share/krita/pykrita/palette_docker/palette_docker.py\",
line 126, in Palette_Docker"
krita.scripting: "    @pyqtSlot('KisSwatch')"
krita.scripting: "TypeError: C++ type 'KisSwatch' is not supported as a
pyqtSlot type argument type"
krita.scripting: "Could not import palette_docker"
krita.scripting: Error loading plugin "palette_docker"
QLayout: Attempting to add QLayout "" to QWidget "", which already has a layout
[New Thread 0x7fff92cab700 (LWP 16086)]
[New Thread 0x7fff9dcdd700 (LWP 16095)]
                Could not set current file 0 "Thumbnails/thumbnail.png"
[New Thread 0x7fffa940c700 (LWP 16108)]
[New Thread 0x7fffa82ca700 (LWP 16109)]
qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 905, resource
id: 41943767, major code: 40 (TranslateCoords), minor code: 0
krita.core: Add node  KisPaintLayer(0x6070004ed7c0, name = "Layer 1")  to 
KisGroupLayer(0x606001d74460, name = "root")
[New Thread 0x7fff9c25b700 (LWP 16437)]
[New Thread 0x7fff7cf32700 (LWP 16438)]
[New Thread 0x7fff7c731700 (LWP 16439)]
[New Thread 0x7fff7bf30700 (LWP 16440)]
[New Thread 0x7fff7b72f700 (LWP 16441)]
[New Thread 0x7fff7af2e700 (LWP 16442)]
[New Thread 0x7fff7a72d700 (LWP 16443)]
[New Thread 0x7fff79f2c700 (LWP 16444)]
[Thread 0x7fff7bf30700 (LWP 16440) exited]
[Thread 0x7fff7a72d700 (LWP 16443) exited]
[Thread 0x7fff79f2c700 (LWP 16444) exited]
[Thread 0x7fff7cf32700 (LWP 16438) exited]
[Thread 0x7fff7af2e700 (LWP 16442) exited]
[Thread 0x7fff7b72f700 (LWP 16441) exited]
[Thread 0x7fff7c731700 (LWP 16439) exited]
[Thread 0x7fff9c25b700 (LWP 16437) exited]
QObject::connect: No such signal
KisVisualColorSelector::requestCloseContainer() in
/home/wolthera/krita/src/libs/ui/kis_popup_palette.cpp:154
[New Thread 0x7fff7c731700 (LWP 16469)]
[Thread 0x7fff7c731700 (LWP 16469) exited]
Entering "KisToolFreehand::requestStrokeEnd()"
Entering "KisToolFreehand::requestStrokeEnd()"
[New Thread 0x7fff7c731700 (LWP 16471)]
[New Thread 0x7fff7af2e700 (LWP 16472)]
[New Thread 0x7fff7b72f700 (LWP 16473)]
[New Thread 0x7fff9c25b700 (LWP 16474)]
[New Thread 0x7fff7cf32700 (LWP 16475)]
[New Thread 0x7fff7bf30700 (LWP 16476)]
[New Thread 0x7fff74d96700 (LWP 16477)]
[New Thread 0x7fff74595700 (LWP 16478)]
Entering "KisToolFreehand::requestStrokeEnd()"
Entering "KisToolFreehand::requestStrokeEnd()"
Entering "KisToolFreehand::requestStrokeEnd()"
[Thread 0x7fff7c731700 (LWP 16471) exited]
[Thread 0x7fff7af2e700 (LWP 16472) exited]
[Thread 0x7fff74d96700 (LWP 16477) exited]
[Thread 0x7fff7b72f700 (LWP 16473) exited]
[Thread 0x7fff9c25b700 (LWP 16474) exited]
[Thread 0x7fff7cf32700 (LWP 16475) exited]
[Thread 0x7fff74595700 (LWP 16478) exited]
Entering "KisToolFreehand::requestStrokeEnd()"
[Thread 0x7fff7bf30700 (LWP 16476) exited]
Entering "KisToolFreehand::requestStrokeEnd()"
Entering "KisToolFreehand::requestStrokeEnd()"
Entering "KisToolFreehand::requestStrokeEnd()"
Entering "KisToolFreehand::requestStrokeEnd()"
Entering "KisToolFreehand::requestStrokeEnd()"
[New Thread 0x7fff7bf30700 (LWP 16503)]
[Thread 0x7fff7bf30700 (LWP 16503) exited]
[New Thread 0x7fff7bf30700 (LWP 16520)]
[New Thread 0x7fff74595700 (LWP 16521)]
[New Thread 0x7fff7cf32700 (LWP 16522)]
[New Thread 0x7fff9c25b700 (LWP 16523)]
[New Thread 0x7fff7e3f5700 (LWP 16524)]
[New Thread 0x7fff7dbf4700 (LWP 16525)]
[New Thread 0x7fff7c731700 (LWP 16526)]
[New Thread 0x7fff7b72f700 (LWP 16527)]
[Thread 0x7fff9c25b700 (LWP 16523) exited]
[Thread 0x7fff7cf32700 (LWP 16522) exited]
[Thread 0x7fff7dbf4700 (LWP 16525) exited]
[Thread 0x7fff74595700 (LWP 16521) exited]
[Thread 0x7fff7c731700 (LWP 16526) exited]
[Thread 0x7fff7b72f700 (LWP 16527) exited]
[Thread 0x7fff7e3f5700 (LWP 16524) exited]
[Thread 0x7fff7bf30700 (LWP 16520) exited]
[Thread 0x7fffa82ca700 (LWP 16109) exited]
[New Thread 0x7fffa82ca700 (LWP 17467)]
Entering "KisToolFreehand::requestStrokeEnd()"
Entering "KisToolFreehand::requestStrokeEnd()"
Entering "KisToolFreehand::requestStrokeEnd()"
Entering "KisToolFreehand::requestStrokeEnd()"
Entering "KisToolFreehand::requestStrokeEnd()"
Entering "KisToolFreehand::requestStrokeEnd()"
Entering "KisToolFreehand::requestStrokeEnd()"
Entering "KisToolFreehand::requestStrokeEnd()"
Entering "KisToolFreehand::requestStrokeEnd()"
Entering "KisToolFreehand::requestStrokeEnd()"
Entering "KisToolFreehand::requestStrokeEnd()"
Entering "KisToolFreehand::requestStrokeEnd()"
Entering "KisToolFreehand::requestStrokeEnd()"
^C 
Thread 1 "krita" received signal SIGINT, Interrupt.
0x00007fffea9dcbf9 in __GI___poll (fds=0x60300212ff50, nfds=4, timeout=249) at
../sysdeps/unix/sysv/linux/poll.c:29
29      ../sysdeps/unix/sysv/linux/poll.c: No such file or directory.
(gdb) thread apply all backtrace

Thread 44 (Thread 0x7fffa82ca700 (LWP 17467)):
#0  0x00007fffea2aaed9 in futex_reltimed_wait_cancelable (private=<optimized
out>, reltime=0x7fffa82c9ba0, expected=0, futex_word=0x60800064acf4)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fffa82c9c60, mutex=0x60800064aca0,
cond=0x60800064acc8) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x60800064acc8, mutex=0x60800064aca0,
abstime=0x7fffa82c9c60) at pthread_cond_wait.c:667
#3  0x00007fffeb308d36 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fffeb309096 in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fffeb306740 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fffeb301c72 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fffea2a46db in start_thread (arg=0x7fffa82ca700) at
pthread_create.c:463
#8  0x00007fffea9e988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7fffa940c700 (LWP 16108)):
#0  0x00007fffea9dcbf9 in __GI___poll (fds=0x602000105c10, nfds=2,
timeout=135333) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff6e55701 in poll () from /usr/lib/x86_64-linux-gnu/libasan.so.4
#2  0x00007fffe12a95c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fffe12a96dc in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fffeb537daf in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fffeb4d903a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fffeb3004ca in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fffeb301c72 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fffea2a46db in start_thread (arg=0x7fffa940c700) at
pthread_create.c:463
#9  0x00007fffea9e988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7fff9dcdd700 (LWP 16095)):
#0  0x00007fffea9dcbf9 in __GI___poll (fds=0x6020000d86b0, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff6e55701 in poll () from /usr/lib/x86_64-linux-gnu/libasan.so.4
#2  0x00007fffe12a95c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fffe12a96dc in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fffeb537daf in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fffeb4d903a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fffeb3004ca in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fffca4db926 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007fffeb301c72 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fffea2a46db in start_thread (arg=0x7fff9dcdd700) at
pthread_create.c:463
#10 0x00007fffea9e988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7fff92cab700 (LWP 16086)):
#0  0x00007fffea9dcbf9 in __GI___poll (fds=0x602000123cd0, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff6e55701 in poll () from /usr/lib/x86_64-linux-gnu/libasan.so.4
#2  0x00007fffe12a95c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fffe12a96dc in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fffeb537daf in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fffeb4d903a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fffeb3004ca in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fffca016115 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fffeb301c72 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fffea2a46db in start_thread (arg=0x7fff92cab700) at
pthread_create.c:463
---Type <return> to continue, or q <return> to quit---
#10 0x00007fffea9e988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7fff924aa700 (LWP 15912)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fffeb304630 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fffeb3044a2 in QSemaphore::tryAcquire(int, int) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007fffed982a8f in KisTileDataSwapper::waitForWork (this=0x7fffeec0c780
<(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  0x00007fffed982aaa in KisTileDataSwapper::run (this=0x7fffeec0c780
<(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  0x00007fffeb301c72 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fffea2a46db in start_thread (arg=0x7fff924aa700) at
pthread_create.c:463
#7  0x00007fffea9e988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fff94eae700 (LWP 15906)):
#0  0x00007fffea9dcbf9 in __GI___poll (fds=0x6020002d5990, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff6e55701 in poll () from /usr/lib/x86_64-linux-gnu/libasan.so.4
#2  0x00007fffe12a95c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fffe12a96dc in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fffeb537daf in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fffeb4d903a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fffeb3004ca in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fffeb301c72 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fffea2a46db in start_thread (arg=0x7fff94eae700) at
pthread_create.c:463
#9  0x00007fffea9e988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fffc4ef9700 (LWP 15639)):
#0  0x00007fffea9dcbf9 in __GI___poll (fds=0x603002095cf0, nfds=4, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff6e55701 in poll () from /usr/lib/x86_64-linux-gnu/libasan.so.4
#2  0x00007fffe12a95c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fffe12a96dc in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fffeb537daf in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fffeb4d903a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fffeb3004ca in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fffe29b1015 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007fffeb301c72 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fffea2a46db in start_thread (arg=0x7fffc4ef9700) at
pthread_create.c:463
#10 0x00007fffea9e988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fffd3c6a700 (LWP 15638)):
#0  0x00007fffea2aa9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x614000005308) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x6140000052b8,
cond=0x6140000052e0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x6140000052e0, mutex=0x6140000052b8) at
pthread_cond_wait.c:655
#3  0x00007fffd099431a in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007fffd0994047 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007fffea2a46db in start_thread (arg=0x7fffd3c6a700) at
pthread_create.c:463
#6  0x00007fffea9e988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fffcf789700 (LWP 15633)):
---Type <return> to continue, or q <return> to quit---
#0  0x00007fffea9dcbf9 in __GI___poll (fds=0x7fffcf788c68, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff6e55701 in poll () from /usr/lib/x86_64-linux-gnu/libasan.so.4
#2  0x00007fffe0504747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fffe050636a in xcb_wait_for_event () from
/usr/lib/x86_64-linux-gnu/libxcb.so.1
#4  0x00007fffd681f578 in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#5  0x00007fffeb301c72 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fffea2a46db in start_thread (arg=0x7fffcf789700) at
pthread_create.c:463
#7  0x00007fffea9e988f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7ffff7f8ce80 (LWP 15448)):
#0  0x00007fffea9dcbf9 in __GI___poll (fds=0x60300212ff50, nfds=4, timeout=249)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff6e55701 in poll () from /usr/lib/x86_64-linux-gnu/libasan.so.4
#2  0x00007fffe12a95c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fffe12a96dc in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fffeb537daf in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fffeb4d903a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fffeb4e2170 in QCoreApplication::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x0000555557933431 in main (argc=1, argv=0x7fffffffdae8) at
/home/wolthera/krita/src/krita/main.cc:535
(gdb) 
(gdb)

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