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nixos/throttled: disable kernel msr warning #102106

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merged 1 commit into from Dec 29, 2020
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nixos/throttled: disable kernel msr warning #102106

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6 changes: 6 additions & 0 deletions nixos/modules/services/hardware/throttled.nix
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Expand Up @@ -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";
};
}