diff --git a/nixos/modules/testing/test-instrumentation.nix b/nixos/modules/testing/test-instrumentation.nix index f37bbd0246da..c1dbfe305ddd 100644 --- a/nixos/modules/testing/test-instrumentation.nix +++ b/nixos/modules/testing/test-instrumentation.nix @@ -88,6 +88,10 @@ let kernel = config.boot.kernelPackages.kernel; in boot.consoleLogLevel = 7; + # Make sure we don't hit page allocation failures if the VM's memory is + # heavily fragmented. + boot.kernel.sysctl."vm.min_free_kbytes" = 16384; + # Prevent tests from accessing the Internet. networking.defaultGateway = mkOverride 150 ""; networking.nameservers = mkOverride 150 [ ];