diff -r 67009d58dd70 -r bfb419c66ae9 src/hotspot/share/gc/z/zVirtualMemory.cpp
--- a/src/hotspot/share/gc/z/zVirtualMemory.cpp	Mon Oct 28 11:26:00 2019 +0100
+++ b/src/hotspot/share/gc/z/zVirtualMemory.cpp	Mon Oct 28 11:26:53 2019 +0100
@@ -47,6 +47,9 @@
     return;
   }
 
+  // Initialize OS specific parts
+  initialize_os();
+
   // Successfully initialized
   _initialized = true;
 }