mirror of
https://github.com/NixOS/nixpkgs.git
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4f0dadbf38
After final improvements to the official formatter implementation,
this commit now performs the first treewide reformat of Nix files using it.
This is part of the implementation of RFC 166.
Only "inactive" files are reformatted, meaning only files that
aren't being touched by any PR with activity in the past 2 months.
This is to avoid conflicts for PRs that might soon be merged.
Later we can do a full treewide reformat to get the rest,
which should not cause as many conflicts.
A CI check has already been running for some time to ensure that new and
already-formatted files are formatted, so the files being reformatted here
should also stay formatted.
This commit was automatically created and can be verified using
nix-build a08b3a4d19.tar.gz \
--argstr baseRev b32a094368
result/bin/apply-formatting $NIXPKGS_PATH
71 lines
1.8 KiB
Nix
71 lines
1.8 KiB
Nix
{
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config,
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lib,
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pkgs,
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...
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}:
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let
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crashdump = config.boot.crashDump;
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kernelParams = lib.concatStringsSep " " crashdump.kernelParams;
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in
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###### interface
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{
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options = {
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boot = {
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crashDump = {
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enable = lib.mkOption {
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type = lib.types.bool;
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default = false;
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description = ''
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If enabled, NixOS will set up a kernel that will
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boot on crash, and leave the user in systemd rescue
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to be able to save the crashed kernel dump at
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/proc/vmcore.
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It also activates the NMI watchdog.
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'';
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};
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reservedMemory = lib.mkOption {
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default = "128M";
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type = lib.types.str;
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description = ''
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The amount of memory reserved for the crashdump kernel.
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If you choose a too high value, dmesg will mention
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"crashkernel reservation failed".
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'';
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};
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kernelParams = lib.mkOption {
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type = lib.types.listOf lib.types.str;
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default = [
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"1"
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"boot.shell_on_fail"
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];
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description = ''
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Parameters that will be passed to the kernel kexec-ed on crash.
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'';
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};
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};
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};
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};
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###### implementation
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config = lib.mkIf crashdump.enable {
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boot = {
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postBootCommands = ''
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echo "loading crashdump kernel...";
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${pkgs.kexec-tools}/sbin/kexec -p /run/current-system/kernel \
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--initrd=/run/current-system/initrd \
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--reset-vga --console-vga \
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--command-line="init=$(readlink -f /run/current-system/init) irqpoll maxcpus=1 reset_devices ${kernelParams}"
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'';
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kernelParams = [
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"crashkernel=${crashdump.reservedMemory}"
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"nmi_watchdog=panic"
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"softlockup_panic=1"
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];
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};
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};
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}
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