From e07f4d6795413d98a2b871d5a8e03d6a9bd16e0f Mon Sep 17 00:00:00 2001 From: Tad Fisher Date: Thu, 29 Oct 2020 15:02:33 -0700 Subject: [PATCH] nixos/throttled: disable kernel msr warning --- nixos/modules/services/hardware/throttled.nix | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/nixos/modules/services/hardware/throttled.nix b/nixos/modules/services/hardware/throttled.nix index 7617c4492d7..1905eb565c6 100644 --- 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"; }; }