Bug 402054

Summary:	Wacom Intuos draw input causes instant crash
Product:	[Applications] krita	Reporter:	smithtrombone
Component:	Tablets (tablet issues are only very rarely bugs in Krita!)	Assignee:	Krita Bugs <krita-bugs-null>
Status:	RESOLVED DUPLICATE
Severity:	critical	CC:	halla
Priority:	NOR
Version:	4.1.6
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed In:

Description smithtrombone 2018-12-12 15:45:29 UTC

SUMMARY
Upon attempting to use Krita, with a canvas open, with a Wacom Intuos tablet/stylus, Krita will crash with the error "double free or corruption (out)" or "double free or corruption (fasttop)".
I can use Krita with no errors until I open or create a canvas, then Krita will crash as soon as I move the stylus over the window.
I have no special configurations for the wacom tablet and I'm sure the problem is not with the tablet as I can use it with all my other applications without error.


STEPS TO REPRODUCE
1. Open Krita
2. Create a new canvas
3. Move the cursor over the Krita window using the wacom stylus.

OBSERVED RESULT
Instant crash.

EXPECTED RESULT
normal interaction with the Krita UI

SOFTWARE/OS VERSIONS
Arch Linux
no desktop environment (Suckless DWM)
xf86-input-wacom 0.36.1-1

Comment 1 Halla Rempt 2018-12-12 15:46:34 UTC

Yes... It's a bug in Qt. I made a workaround today. See QTBUG-72488

*** This bug has been marked as a duplicate of bug 401988 ***