Bug 101806

Summary:	plasma 5: system settings crashes when I leave desktop effects kcm
Product:	Wayland	Reporter:	Strangiato <bugseforuns>
Component:	wayland	Assignee:	Wayland bug list <wayland-bugs>
Status:	RESOLVED NOTOURBUG	QA Contact:
Severity:	normal
Priority:	medium
Version:	unspecified
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:		i915 features:

Description Strangiato 2017-07-16 19:01:07 UTC

Hi
I reported this crash to kde team, a developer said can be a bug with mesa.
See the link to my bug report in kde bug tracker please, it contains some debug info.
https://bugs.kde.org/show_bug.cgi?id=381702

Comment 1 Ilia Mirkin 2017-07-16 19:05:27 UTC

What GPU are you using, and what version of mesa?

Comment 2 Strangiato 2017-07-16 19:40:47 UTC

gpu intel hd 4000
mesa 12.0.6

My bug report in kde tracker is about neon developer unstable edition, but this crash also happens on Arch running mesa 17.1.4 on the same hardware.
On both systems the crash happens only under Wayland session.

Comment 3 Strangiato 2018-02-03 19:46:45 UTC

Crash is still happening on Arch Linux running mesa 17.3.3-2.

Comment 4 Timothy Arceri 2018-04-24 05:15:09 UTC

Since it crashed inside Wayland client lets move this bug there to start with.

Comment 5 Daniel Stone 2018-06-04 08:43:39 UTC

Sorry, but please bounce this bug back to KDE. What is happening is that there is an asynchronous thread calling eglSwapBuffers(), using the wl_egl_window + wl_surface objects passed to EGL. KDE/Qt destroy the wl_surface too early and eglSwapBuffers tries to access now-freed memory. It must destroy the EGLSurface (and stop rendering to it!) before it destroys the wl_surface.

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