From 236703f9f3ac1d0904d63940d00f885dfeeb854b Mon Sep 17 00:00:00 2001
From: xeji <xeji@cat3.de>
Date: Sun, 22 Apr 2018 20:10:15 +0200
Subject: [PATCH] nixos/systemd-networkd: wait for udev to settle

... to avoid race condition between udevd renaming and
networkd configuring interfaces (39069)
---
 nixos/modules/system/boot/networkd.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/nixos/modules/system/boot/networkd.nix b/nixos/modules/system/boot/networkd.nix
index eea10613ea58..74d17cf9787e 100644
--- a/nixos/modules/system/boot/networkd.nix
+++ b/nixos/modules/system/boot/networkd.nix
@@ -712,6 +712,9 @@ in
     systemd.services.systemd-networkd = {
       wantedBy = [ "multi-user.target" ];
       restartTriggers = map (f: f.source) (unitFiles);
+      # prevent race condition with interface renaming (#39069)
+      requires = [ "systemd-udev-settle.service" ];
+      after = [ "systemd-udev-settle.service" ];
     };
 
     systemd.services.systemd-networkd-wait-online = {