--- a/hotspot/src/os/bsd/vm/os_bsd.cpp	Mon Jun 10 11:30:51 2013 +0200
+++ b/hotspot/src/os/bsd/vm/os_bsd.cpp	Thu Jun 13 11:16:38 2013 -0700
@@ -2074,6 +2074,13 @@
   }
 }
 
+static void warn_fail_commit_memory(char* addr, size_t size, bool exec,
+                                    int err) {
+  warning("INFO: os::commit_memory(" PTR_FORMAT ", " SIZE_FORMAT
+          ", %d) failed; error='%s' (errno=%d)", addr, size, exec,
+          strerror(err), err);
+}
+
 // NOTE: Bsd kernel does not really reserve the pages for us.
 //       All it does is to check if there are enough free pages
 //       left at the time of mmap(). This could be a potential
@@ -2082,18 +2089,45 @@
   int prot = exec ? PROT_READ|PROT_WRITE|PROT_EXEC : PROT_READ|PROT_WRITE;
 #ifdef __OpenBSD__
   // XXX: Work-around mmap/MAP_FIXED bug temporarily on OpenBSD
-  return ::mprotect(addr, size, prot) == 0;
+  if (::mprotect(addr, size, prot) == 0) {
+    return true;
+  }
 #else
   uintptr_t res = (uintptr_t) ::mmap(addr, size, prot,
                                    MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0);
-  return res != (uintptr_t) MAP_FAILED;
+  if (res != (uintptr_t) MAP_FAILED) {
+    return true;
+  }
 #endif
+
+  // Warn about any commit errors we see in non-product builds just
+  // in case mmap() doesn't work as described on the man page.
+  NOT_PRODUCT(warn_fail_commit_memory(addr, size, exec, errno);)
+
+  return false;
 }
 
-
 bool os::pd_commit_memory(char* addr, size_t size, size_t alignment_hint,
                        bool exec) {
-  return commit_memory(addr, size, exec);
+  // alignment_hint is ignored on this OS
+  return pd_commit_memory(addr, size, exec);
+}
+
+void os::pd_commit_memory_or_exit(char* addr, size_t size, bool exec,
+                                  const char* mesg) {
+  assert(mesg != NULL, "mesg must be specified");
+  if (!pd_commit_memory(addr, size, exec)) {
+    // add extra info in product mode for vm_exit_out_of_memory():
+    PRODUCT_ONLY(warn_fail_commit_memory(addr, size, exec, errno);)
+    vm_exit_out_of_memory(size, OOM_MMAP_ERROR, mesg);
+  }
+}
+
+void os::pd_commit_memory_or_exit(char* addr, size_t size,
+                                  size_t alignment_hint, bool exec,
+                                  const char* mesg) {
+  // alignment_hint is ignored on this OS
+  pd_commit_memory_or_exit(addr, size, exec, mesg);
 }
 
 void os::pd_realign_memory(char *addr, size_t bytes, size_t alignment_hint) {
@@ -2148,7 +2182,7 @@
 }
 
 bool os::pd_create_stack_guard_pages(char* addr, size_t size) {
-  return os::commit_memory(addr, size);
+  return os::commit_memory(addr, size, !ExecMem);
 }
 
 // If this is a growable mapping, remove the guard pages entirely by
@@ -3512,7 +3546,7 @@
 
   if (!UseMembar) {
     address mem_serialize_page = (address) ::mmap(NULL, Bsd::page_size(), PROT_READ | PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
-    guarantee( mem_serialize_page != NULL, "mmap Failed for memory serialize page");
+    guarantee( mem_serialize_page != MAP_FAILED, "mmap Failed for memory serialize page");
     os::set_memory_serialize_page( mem_serialize_page );
 
 #ifndef PRODUCT