From 9540b1c5357acd63f89c985a85faee79bf28d902 Mon Sep 17 00:00:00 2001
From: Brian Olsen <brian@maven-group.org>
Date: Wed, 29 Aug 2018 12:12:12 +0200
Subject: [PATCH] nixos/tests: Set DefaultTimeoutStartSec very high (#44916)

DefaultTimeoutStartSec is normally set to 90 seconds and works fine. But
when running NixOS tests on a very slow machine (like a VM without
nested virtualisation support) this default is to low and causes
systemd units to fail spuriously. One symptom of this issue are tests
at times failing with "timed out waiting for the VM to connect".

Since the VM connect timeout is 300 seconds I also set
DefaultTimeoutStartSec to this which is ridiculously high.
---
 nixos/modules/testing/test-instrumentation.nix | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/nixos/modules/testing/test-instrumentation.nix b/nixos/modules/testing/test-instrumentation.nix
index d94e21d681f..ed4cfa7805e 100644
--- a/nixos/modules/testing/test-instrumentation.nix
+++ b/nixos/modules/testing/test-instrumentation.nix
@@ -102,8 +102,12 @@ with import ../../lib/qemu-flags.nix { inherit pkgs; };
         MaxLevelConsole=debug
       '';
 
-    # Don't clobber the console with duplicate systemd messages.
-    systemd.extraConfig = "ShowStatus=no";
+    systemd.extraConfig = ''
+      # Don't clobber the console with duplicate systemd messages.
+      ShowStatus=no
+      # Allow very slow start
+      DefaultTimeoutStartSec=300
+    '';
 
     boot.consoleLogLevel = 7;