Aleix Roca Nonell
1c5f3a856f
smp_processor_id() was called in a preepmtible context, which could invalidate the returned value. However, this was not harmful, because fcs threads in nosv are pinned. Reviewed-by: Rodrigo Arias Mallo <rodrigo.arias@bsc.es>
71 lines
2.1 KiB
Nix
71 lines
2.1 KiB
Nix
{ pkgs, lib, ... }:
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let
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#fcs-devel = pkgs.linuxPackages_custom {
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# version = "6.2.8";
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# src = /mnt/data/kernel/fcs/kernel/src;
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# configfile = /mnt/data/kernel/fcs/kernel/configs/defconfig;
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#};
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#fcsv1 = fcs-kernel "bc11660676d3d68ce2459b9fb5d5e654e3f413be" false;
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#fcsv2 = fcs-kernel "db0f2eca0cd57a58bf456d7d2c7d5d8fdb25dfb1" false;
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#fcsv1-lockdep = fcs-kernel "bc11660676d3d68ce2459b9fb5d5e654e3f413be" true;
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#fcsv2-lockdep = fcs-kernel "db0f2eca0cd57a58bf456d7d2c7d5d8fdb25dfb1" true;
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#fcs-kernel = gitCommit: lockdep: pkgs.linuxPackages_custom {
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# version = "6.2.8";
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# src = builtins.fetchGit {
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# url = "git@bscpm03.bsc.es:ompss-kernel/linux.git";
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# rev = gitCommit;
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# ref = "fcs";
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# };
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# configfile = if lockdep then ./configs/lockdep else ./configs/defconfig;
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#};
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kernel = nixos-fcs;
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nixos-fcs-kernel = lib.makeOverridable ({gitCommit, lockStat ? false, preempt ? false, branch ? "fcs"}: pkgs.linuxPackagesFor (pkgs.buildLinux rec {
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version = "6.2.8";
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src = builtins.fetchGit {
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url = "git@bscpm03.bsc.es:ompss-kernel/linux.git";
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rev = gitCommit;
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ref = branch;
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};
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structuredExtraConfig = with lib.kernel; {
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# add general custom kernel options here
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} // lib.optionalAttrs lockStat {
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LOCK_STAT = yes;
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} // lib.optionalAttrs preempt {
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PREEMPT = lib.mkForce yes;
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PREEMPT_VOLUNTARY = lib.mkForce no;
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};
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kernelPatches = [];
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extraMeta.branch = lib.versions.majorMinor version;
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}));
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nixos-fcs = nixos-fcs-kernel {gitCommit = "8a09822dfcc8f0626b209d6d2aec8b5da459dfee";};
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nixos-fcs-lockstat = nixos-fcs.override {
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lockStat = true;
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};
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nixos-fcs-lockstat-preempt = nixos-fcs.override {
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lockStat = true;
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preempt = true;
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};
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latest = pkgs.linuxPackages_latest;
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in {
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imports = [
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./lttng.nix
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./perf.nix
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];
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boot.kernelPackages = lib.mkForce kernel;
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# disable all cpu mitigations
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boot.kernelParams = [
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"mitigations=off"
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];
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# enable memory overcommit, needed to build a taglibc system using nix after
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# increasing the openblas memory footprint
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boot.kernel.sysctl."vm.overcommit_memory" = 1;
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}
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