nixpkgs/nixos/modules/system/boot/coredump.nix
Eelco Dolstra 840f3230a2 Restore default core limit of 0:infinity
Continuation of 79c3c16dcbb3b45c0f108550cb89ccd4fc855e3b. Systemd 229
sets the default RLIMIT_CORE to infinity, causing systems to be
littered with core dumps when systemd.coredump.enable is disabled.

This restores the 15.09 soft limit of 0 and hard limit of infinity.
2016-04-14 13:18:09 +02:00

62 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";
systemd.extraConfig =
''
DefaultLimitCORE=0:infinity
'';
})
];
}