gnome-mahjongg locks up with high cpu usage on the second game played after one or two moves

[Derk Willem te Bokkel]

I encountered this behaviour earlier during development of mantic and opened a bug which I closed when the behaviour stopped .. later during development .. unfortunately I have to file this bug again as the problem has returned.. it has also been reported for an earlier version of gnome-mahjongg as well

ProblemType: Bug
DistroRelease: Ubuntu 23.10
Package: gnome-mahjongg 1:3.40.0-1
ProcVersionSignature: Ubuntu 6.5.0-9.9-generic 6.5.3
Uname: Linux 6.5.0-9-generic x86_64
ApportVersion: 2.27.0-0ubuntu5
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: XFCE
Date: Sat Oct 14 17:57:49 2023
InstallationDate: Installed on 2023-10-04 (10 days ago)
InstallationMedia: Xubuntu 23.10 "Mantic Minotaur" - Daily amd64 (20231004)
ProcEnviron:
 LANG=en_CA.UTF-8
 LANGUAGE=en_CA:en
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
SourcePackage: gnome-mahjongg
UpgradeStatus: No upgrade log present (probably fresh install)

[Derk Willem te Bokkel (dtebokkel)]

similar bug #1991976 earlier version in a snap (jammy)

[madigal (osse7)]

Can confirm that issue here with a Mate Mantic session (default ubuntu config)
The first game run works as expected; if we run a second game, the mouse click works, then the others cant be done. Closing mahjongg and restarted it does not help. The whole session has to be closed and reopened to be able to run a mahjongg game, but the next run will fails again. With such a case, nor the keyboard nor the mouse are active.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Derk Willem te Bokkel (dtebokkel)]

you can kill the process using killall, top, or other process control tool without restarting your session

[madigal (osse7)]

This is met with many linux OS and seems related to cairo:
https://gitlab.gnome.org/GNOME/gnome-mahjongg/-/issues/37

https://gitlab.gnome.org/GNOME/gnome-mahjongg/-/merge_requests/35

Hope 3.42 will be out soon