Bug 403653

Summary:	Random, complete desktop crashes when Wayland is used
Product:	[Plasma] plasmashell	Reporter:	johan <kurko2000>
Component:	generic-wayland	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	RESOLVED BACKTRACE
Severity:	crash	CC:	geno1520, kde
Priority:	NOR	Flags:	kurko2000: Wayland+
Version First Reported In:	5.14.5
Target Milestone:	1.0
Platform:	Arch Linux
OS:	Linux
See Also:	https://bugs.kde.org/show_bug.cgi?id=497378
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	dmesg and coredump information Core dump information

Description johan 2019-01-27 12:38:11 UTC

Created attachment 117676 [details]
dmesg and coredump information

(I'm not sure if Plasmashell is the correct category for this - please change it if needed.)

When KDE desktop is used with Wayland, the desktop sometimes crashes completely and returns to the SDDM login screen. Most processes of the user are also terminated when this happens. This occurs randomly and not very often. The desktop may work for hours before it crashes. The crash may occur at any moment. I haven't noticed any specific actions that lead to crash.

Please note that render loop is set to Basic in "kcmshell5 qtquicksettings" as suggested in the comments of bug #396614

Some dmesg and core dump information is attached. This time only drkonqi appeared in the core dumps. Sometimes other processes appear as well.


System information:
Arch Linux, x86-64, kernel version (uname -r): 4.20.3-arch1-1-ARCH
Plasma package versions: 5.14.5-2
GPU: Nvidia GTX 980 Ti
Driver: Nouveau
KDE workspace themes: 
--Look and feel: Oxygen
--Desktop theme: Oxygen
--Cursor theme: Oxygen white
--Splash screen: Breeze

Comment 1 johan 2019-01-27 17:26:41 UTC

Created attachment 117687 [details]
Core dump information

Another crash. Again only drkonqi appeared in core dumps.

Comment 2 David Edmundson 2019-01-30 13:03:43 UTC

> the desktop sometimes crashes completely and returns to the SDDM login screen.

Kwin is crashing - which is what's bringing plasma and everything else down which is what we're seeing here in these crash reports.

We need a crash dump of kwin.