nixos/throttled: disable kernel msr warning

4 years ago · e07f4d6795
parent 502845c3e3
commit e07f4d6795
1 changed files with 6 additions and 0 deletions
--- a/nixos/modules/services/hardware/throttled.nix
+++ b/nixos/modules/services/hardware/throttled.nix
@ -26,5 +26,11 @@ in {
      if cfg.extraConfig != ""
      then pkgs.writeText "lenovo_fix.conf" cfg.extraConfig
      else "${pkgs.throttled}/etc/lenovo_fix.conf";
+
+    # Kernel 5.9 spams warnings whenever userspace writes to CPU MSRs.
+    # See https://github.com/erpalma/throttled/issues/215
+    boot.kernelParams =
+      optional (versionAtLeast config.boot.kernelPackages.kernel.version "5.9")
+      "msr.allow_writes=on";
  };
 }