diff --git a/pkgs/uvmslib/uvmslib.py b/pkgs/uvmslib/uvmslib.py
index 9428edb..f7319bc 100644
--- a/pkgs/uvmslib/uvmslib.py
+++ b/pkgs/uvmslib/uvmslib.py
@@ -73,8 +73,8 @@ class Processes:
                 text=text,
                 env=env,
                 cwd="/home/user",
-                stdin=subprocess.PIPE,
-                stdout=subprocess.PIPE,
+                stdin=None,
+                stdout=None,
             )
             res["status"] = "exec succeeded"
         except Exception as e:
diff --git a/profiles/baseImage.nix b/profiles/baseImage.nix
index 66e95b8..60a8cc5 100644
--- a/profiles/baseImage.nix
+++ b/profiles/baseImage.nix
@@ -45,6 +45,11 @@ in
     hardware.graphics.enable = true;
     # boot.kernelPackages = pkgs.linuxPackagesFor uvmsPkgs.linux-uvm;
     # boot.isContainer = true;
+    boot.kernel.sysctl = {
+        "vm.overcommit_memory" = 1; # "always"
+        # "vm.overcommit_memory" = 2; # "never"
+        "vm.panic_on_oom" = 1;
+    };
     boot.initrd.kernelModules = [
       "drm"
       "virtio_blk"