Public bug reported:
Not sure whether that is always Network Manager
Seems after return from suspend the systems becomes unresponsive for 1-2s more
seconds every 10-15s. One cpu got 100% load and some processes goes zombie.
NetworkManager main process is using 70-100% of cpu time while nm-auth-openvpn
is zombie
So I am not sure whether it is kernel, networkmanager or cpu problem
$ ps aux|grep Z
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
mastier 7006 0.0 0.0 0 0 ? Z Jun16 0:00
[nm-openvpn-auth] <defunct>
mastier 7465 0.0 0.0 0 0 ? Z Jun16 0:00
[sd_espeak-ng-mb] <defunct>
mastier 41853 0.0 0.0 0 0 ? Z Jun16 0:00
[nm-openvpn-auth] <defunct>
mastier 108873 0.0 0.0 0 0 ? Z 09:45 0:00
[nm-openvpn-auth] <defunct>
mastier 113153 0.0 0.0 11672 2408 pts/0 S+ 10:00 0:00 grep Z
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: network-manager-openvpn-gnome 1.10.2-4build2
ProcVersionSignature: Ubuntu 6.11.0-26.26~24.04.1-generic 6.11.11
Uname: Linux 6.11.0-26-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.7
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Tue Jun 17 09:57:17 2025
InstallationDate: Installed on 2025-04-12 (66 days ago)
InstallationMedia: Ubuntu 24.04.2 LTS "Noble Numbat" - Release amd64 (20250215)
SourcePackage: network-manager-openvpn
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: network-manager-openvpn (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble wayland-session
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https://bugs.launchpad.net/bugs/2114818
Title:
After resume from suspend NetworkManager uses a lot of CPU and nm-
openvpn-openauth goes zombie
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