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nixpkgs/nixos/modules/system/boot/coredump.nix
Eelco Dolstra 54ca7e9f75 Restore core dumps
Systemd 229 sets kernel.core_pattern to "|/bin/false" by default,
unless systemd-coredump is enabled. Revert back to the default of
writing "core" in the current directory.
2016-03-25 17:29:29 +01:00

57 lines
1.5 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
{
options = {
systemd.coredump = {
enable = mkOption {
default = false;
type = types.bool;
description = ''
Enables storing core dumps in systemd.
Note that this alone is not enough to enable core dumps. The maximum
file size for core dumps must be specified in limits.conf as well. See
<option>security.pam.loginLimits</option> as well as the limits.conf(5)
man page.
'';
};
extraConfig = mkOption {
default = "";
type = types.lines;
example = "Storage=journal";
description = ''
Extra config options for systemd-coredump. See coredump.conf(5) man page
for available options.
'';
};
};
};
config = mkMerge [
(mkIf config.systemd.coredump.enable {
environment.etc."systemd/coredump.conf".text =
''
[Coredump]
${config.systemd.coredump.extraConfig}
'';
# Have the kernel pass core dumps to systemd's coredump helper binary.
# From systemd's 50-coredump.conf file. See:
# <https://github.com/systemd/systemd/blob/v218/sysctl.d/50-coredump.conf.in>
boot.kernel.sysctl."kernel.core_pattern" = "|${pkgs.systemd}/lib/systemd/systemd-coredump %p %u %g %s %t %e";
})
(mkIf (!config.systemd.coredump.enable) {
boot.kernel.sysctl."kernel.core_pattern" = mkDefault "core";
})
];
}