🐛 nohang service fails on Ubuntu 23.10

[mauromorales]

tried with the alpha but I found this issue already on 2.5.0

PRETTY_NAME="Ubuntu 23.10"
NAME="Ubuntu"
VERSION_ID="23.10"
VERSION="23.10 (Mantic Minotaur)"
VERSION_CODENAME=mantic
ID=ubuntu
ID_LIKE=debian
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
UBUNTU_CODENAME=mantic
LOGO=ubuntu-logo
KAIROS_VERSION_ID="v3.0.0-alpha1-v1.29.0-k3s1"
KAIROS_ARTIFACT="kairos-ubuntu-23.10-standard-amd64-generic-v3.0.0-alpha1-k3sv1.29.0+k3s1"
KAIROS_FLAVOR_RELEASE="23.10"
KAIROS_MODEL="generic"
KAIROS_REGISTRY_AND_ORG="quay.io/kairos"
KAIROS_BUG_REPORT_URL="https://github.com/kairos-io/kairos/issues"
KAIROS_SOFTWARE_VERSION="v1.29.0+k3s1"
KAIROS_NAME="kairos-standard-ubuntu-23.10"
KAIROS_IMAGE_REPO="quay.io/kairos/ubuntu:23.10-standard-amd64-generic-v3.0.0-alpha1-k3sv1.29.0-k3s1"
KAIROS_RELEASE="v3.0.0-alpha1"
KAIROS_ID="kairos"
KAIROS_FLAVOR="ubuntu"
KAIROS_VARIANT="standard"
KAIROS_TARGETARCH="amd64"
KAIROS_HOME_URL="https://github.com/kairos-io/kairos"
KAIROS_SOFTWARE_VERSION_PREFIX="k3s"
KAIROS_VERSION="v3.0.0-alpha1-v1.29.0-k3s1"
KAIROS_ID_LIKE="kairos-standard-ubuntu-23.10"
KAIROS_PRETTY_NAME="kairos-standard-ubuntu-23.10 v3.0.0-alpha1-v1.29.0-k3s1"
KAIROS_IMAGE_LABEL="23.10-standard-amd64-generic-v3.0.0-alpha1-k3sv1.29.0-k3s1"
KAIROS_GITHUB_REPO="kairos-io/kairos"

nohang status

root@localhost:/home/kairos# systemctl status --failed
× nohang-desktop.service - Sophisticated low memory handler
     Loaded: loaded (/lib/systemd/system/nohang-desktop.service; enabled; preset: enabled)
     Active: failed (Result: exit-code) since Tue 2024-01-30 09:18:27 UTC; 57s ago
   Duration: 140ms
       Docs: man:nohang(8)
             https://github.com/hakavlad/nohang
   Main PID: 1607 (code=exited, status=1/FAILURE)
        CPU: 137ms

Jan 30 09:18:27 localhost systemd[1]: nohang-desktop.service: Scheduled restart job, restart counter is at 5.
Jan 30 09:18:27 localhost systemd[1]: Stopped nohang-desktop.service - Sophisticated low memory handler.
Jan 30 09:18:27 localhost systemd[1]: nohang-desktop.service: Start request repeated too quickly.
Jan 30 09:18:27 localhost systemd[1]: nohang-desktop.service: Failed with result 'exit-code'.
Jan 30 09:18:27 localhost systemd[1]: Failed to start nohang-desktop.service - Sophisticated low memory handler.

Seems to be related to hakavlad/nohang#135 so we might need to bump the version once it is released. Or maybe we can even provide it as part of the framework image like suggested here #1609 (comment)

[mauromorales]

Kevin tested this with a new cluster, and it spins up fine. I don't understand how we use nohang exactly, so not sure if it's an issue. We will only find out with a loaded cluster, or if nohang is used for something specific that needs to be tested

[liyimeng]

upstream have a fix for this hakavlad/nohang#136, hope new release of nohang fix the issue.

[liyimeng]

Today, we install nohang from ppa, which might not up to date. I think would consider to install it from source, we then have the fix.