Add a hwloc test

overlay.nix

@@ -120,6 +120,10 @@ let
     nanos6 = bsc.nanos6Release;
     nanos6Release = callPackage ./bsc/nanos6/default.nix { };
     nanos6Git = callPackage ./bsc/nanos6/git.nix { };
+    nanos6Debug = bsc.nanos6.overrideAttrs (old: {
+      dontStrip = true;
+      enableDebugging = true;
+    });
 
     jemalloc = self.jemalloc.overrideAttrs (old:
     {
@@ -546,6 +550,10 @@ let
           };
         };
       };
+
+      test = {
+        hwloc = callPackage ./test/bugs/hwloc.nix { };
+      };
     };
   });