From 3b798f5ebf74f10772fe581e28498a327c9a765c Mon Sep 17 00:00:00 2001
From: Jonas Nick <jonasd.nick@gmail.com>
Date: Wed, 12 Aug 2026 18:22:32 +0000
Subject: [PATCH] test: increase VM memory to 4 GiB

---
 test/lib/make-test.nix | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/test/lib/make-test.nix b/test/lib/make-test.nix
index 73785e1..69a6e9e 100644
--- a/test/lib/make-test.nix
+++ b/test/lib/make-test.nix
@@ -128,8 +128,9 @@ let
       # Needed because duplicity requires 270 MB of free temp space, regardless of backup size
       diskSize = 1024;
 
-      # Min. 800 MiB needed to avoid 'out of memory' errors
-      memorySize = lib.mkDefault 2048;
+      # The `netns` scenarios need more than 2 GiB: netns-isolation adds a
+      # network namespace per service, which costs a few hundred MiB of slab.
+      memorySize = lib.mkDefault 4096;
 
       # There are no perf gains beyond 3 cores.
       # Benchmark: Ryzen 7 2700 (8 cores), VM test `default` as of 34f6eb90.