Bug 498502

Summary:	kwin-crash when alt-tabbing
Product:	[Plasma] kwin	Reporter:	zeus <kde>
Component:	general	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED UPSTREAM
Severity:	crash	CC:	nate
Priority:	NOR	Keywords:	drkonqi
Version First Reported In:	6.2.5
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	New crash information added by DrKonqi

Description zeus 2025-01-10 20:27:34 UTC

Application: kwin_wayland (6.2.5)

ApplicationNotResponding [ANR]: false
Qt Version: 6.8.1
Frameworks Version: 6.9.0
Operating System: Linux 6.6.69-1-lts x86_64
Windowing System: Wayland
Distribution: "Arch Linux"
DrKonqi: 6.2.5 [CoredumpBackend]

-- Information about the crash:
this only happens occasionally and I was not able to exactly pinpoint the circumstances when this happens, but when alt-tabbing (I have the feeling this only happens switching to non-wayland-native windows like firefox) suddenly kwin crashes and then reloads. KDE-applications like Konsole will survive this crash in their current state, but most other Applications don't.

Running Arch with LTS-Kernel on current all-AMD hardware.

The crash can be reproduced sometimes.

-- Backtrace (Reduced):
#5  0x00007d41a0e1691c in simple_mtx_lock () at ../mesa-24.3.3/src/util/simple_mtx.h:106
#6  _mesa_lock_debug_state () at ../mesa-24.3.3/src/mesa/main/debug_output.c:770
#7  0x00007d41a0e175c0 in _mesa_log_msg () at ../mesa-24.3.3/src/mesa/main/debug_output.c:948
#8  0x00007d41a0e7bea4 in _mesa_gl_vdebugf () at ../mesa-24.3.3/src/mesa/main/errors.c:171
#9  0x00007d41a0e16759 in _debug_message () at ../mesa-24.3.3/src/mesa/main/debug_output.c:739


Reported using DrKonqi

Comment 1 zeus 2025-01-10 20:27:35 UTC

Created attachment 177270 [details]
New crash information added by DrKonqi

DrKonqi auto-attaching complete backtrace.

Comment 2 Nate Graham 2025-01-13 20:19:58 UTC

Unfortunately it's crashing in the graphics drivers; nothing KWin can do here. Please read https://docs.mesa3d.org/bugs.html and submit a bug report for the Mesa developers. Thanks!