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nixos: disable systemd-oomd when enableUnifiedCgroupHierarchy is false

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Or else systemd-oomd gets marked as failed due to
"Userspace Out-Of-Memory (OOM) Killer was skipped because of a failed condition check (ConditionControlGroupController=v2)."
and cause the system to enter degraded state.

Ref https://github.com/NixOS/nixpkgs/issues/195085

(cherry picked from commit 43ee81aa25)
This commit is contained in:
Bjørn Forsman
2022-11-29 14:20:25 +01:00
parent 01e21c51cf
commit 074059ab30
1 changed files with 4 additions and 0 deletions
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4
nixos/modules/system/boot/systemd.nix
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@@ -612,6 +612,10 @@ in
boot.kernelParams = optional (!cfg.enableUnifiedCgroupHierarchy) "systemd.unified_cgroup_hierarchy=0";
# Avoid potentially degraded system state due to
# "Userspace Out-Of-Memory (OOM) Killer was skipped because of a failed condition check (ConditionControlGroupController=v2)."
systemd.services.systemd-oomd.enable = mkIf (!cfg.enableUnifiedCgroupHierarchy) false;
services.logrotate.settings = {
"/var/log/btmp" = mapAttrs (_: mkDefault) {
frequency = "monthly";