pyrox.dev
nixos/rasdaemon: init module
+1
nixos/modules/module-list.nix
+1
nixos/modules/module-list.nix
···
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./services/hardware/pcscd.nix
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./services/hardware/pommed.nix
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./services/hardware/power-profiles-daemon.nix
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./services/hardware/rasdaemon.nix
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./services/hardware/ratbagd.nix
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./services/hardware/sane.nix
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426
./services/hardware/sane_extra_backends/brscan4.nix
+171
nixos/modules/services/hardware/rasdaemon.nix
+171
nixos/modules/services/hardware/rasdaemon.nix
···
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{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.hardware.rasdaemon;
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in
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{
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options.hardware.rasdaemon = {
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enable = mkEnableOption "RAS logging daemon";
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record = mkOption {
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type = types.bool;
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default = true;
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description = "record events via sqlite3, required for ras-mc-ctl";
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};
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mainboard = mkOption {
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type = types.lines;
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default = "";
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description = "Custom mainboard description, see <citerefentry><refentrytitle>ras-mc-ctl</refentrytitle><manvolnum>8</manvolnum></citerefentry> for more details.";
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example = ''
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vendor = ASRock
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model = B450M Pro4
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# it should default to such values from
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# /sys/class/dmi/id/board_[vendor|name]
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# alternatively one can supply a script
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# that returns the same format as above
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script = <path to script>
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'';
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};
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# TODO, accept `rasdaemon.labels = " ";` or `rasdaemon.labels = { dell = " "; asrock = " "; };'
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labels = mkOption {
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type = types.lines;
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default = "";
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description = "Additional memory module label descriptions to be placed in /etc/ras/dimm_labels.d/labels";
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example = ''
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# vendor and model may be shown by 'ras-mc-ctl --mainboard'
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vendor: ASRock
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product: To Be Filled By O.E.M.
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model: B450M Pro4
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# these labels are names for the motherboard slots
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# the numbers may be shown by `ras-mc-ctl --error-count`
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# they are mc:csrow:channel
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DDR4_A1: 0.2.0; DDR4_B1: 0.2.1;
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DDR4_A2: 0.3.0; DDR4_B2: 0.3.1;
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'';
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};
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config = mkOption {
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type = types.lines;
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default = "";
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description = ''
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rasdaemon configuration, currently only used for CE PFA
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for details, read rasdaemon.outPath/etc/sysconfig/rasdaemon's comments
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'';
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example = ''
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# defaults from included config
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PAGE_CE_REFRESH_CYCLE="24h"
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PAGE_CE_THRESHOLD="50"
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PAGE_CE_ACTION="soft"
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'';
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};
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extraModules = mkOption {
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type = types.listOf types.str;
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default = [];
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description = "extra kernel modules to load";
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example = [ "i7core_edac" ];
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};
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testing = mkEnableOption "error injection infrastructure";
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};
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config = mkIf cfg.enable {
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environment.etc = {
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"ras/mainboard" = {
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enable = cfg.mainboard != "";
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text = cfg.mainboard;
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};
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# TODO, handle multiple cfg.labels.brand = " ";
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"ras/dimm_labels.d/labels" = {
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enable = cfg.labels != "";
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text = cfg.labels;
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};
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"sysconfig/rasdaemon" = {
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enable = cfg.config != "";
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text = cfg.config;
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};
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};
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environment.systemPackages = [ pkgs.rasdaemon ]
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++ optionals (cfg.testing) (with pkgs.error-inject; [
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edac-inject
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mce-inject
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aer-inject
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]);
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boot.initrd.kernelModules = cfg.extraModules
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++ optionals (cfg.testing) [
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# edac_core and amd64_edac should get loaded automatically
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# i7core_edac may not be, and may not be required, but should load successfully
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"edac_core"
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"amd64_edac"
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"i7core_edac"
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"mce-inject"
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"aer-inject"
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];
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boot.kernelPatches = optionals (cfg.testing) [{
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name = "rasdaemon-tests";
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patch = null;
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extraConfig = ''
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EDAC_DEBUG y
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X86_MCE_INJECT y
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PCIEPORTBUS y
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PCIEAER y
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PCIEAER_INJECT y
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'';
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}];
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# i tried to set up a group for this
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# but rasdaemon needs higher permissions?
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# `rasdaemon: Can't locate a mounted debugfs`
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# most of this taken from src/misc/
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systemd.services = {
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rasdaemon = {
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description = "the RAS logging daemon";
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documentation = [ "man:rasdaemon(1)" ];
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wantedBy = [ "multi-user.target" ];
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after = [ "syslog.target" ];
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serviceConfig = {
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StateDirectory = optionalString (cfg.record) "rasdaemon";
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ExecStart = "${pkgs.rasdaemon}/bin/rasdaemon --foreground"
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+ optionalString (cfg.record) " --record";
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ExecStop = "${pkgs.rasdaemon}/bin/rasdaemon --disable";
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Restart = "on-abort";
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# src/misc/rasdaemon.service.in shows this:
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# ExecStartPost = ${pkgs.rasdaemon}/bin/rasdaemon --enable
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# but that results in unpredictable existence of the database
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# and everything seems to be enabled without this...
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};
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};
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ras-mc-ctl = mkIf (cfg.labels != "") {
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description = "register DIMM labels on startup";
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documentation = [ "man:ras-mc-ctl(8)" ];
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wantedBy = [ "multi-user.target" ];
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serviceConfig = {
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Type = "oneshot";
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ExecStart = "${pkgs.rasdaemon}/bin/ras-mc-ctl --register-labels";
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RemainAfterExit = true;
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};
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};
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};
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};
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meta.maintainers = [ maintainers.evils ];
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}