--- old/src/os/linux/vm/os_linux.cpp	Mon Jun  3 20:34:11 2013
+++ new/src/os/linux/vm/os_linux.cpp	Mon Jun  3 20:34:11 2013
@@ -2547,11 +2547,26 @@
   }
 }
 
+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);
+}
+
+static void warn_fail_commit_memory(char* addr, size_t size,
+                                    size_t alignment_hint, bool exec,
+                                    int err) {
+  warning("INFO: os::commit_memory(" PTR_FORMAT ", " SIZE_FORMAT
+          ", " SIZE_FORMAT ", %d) failed; error='%s' (errno=%d)", addr, size,
+          alignment_hint, exec, strerror(err), err);
+}
+
 // NOTE: Linux 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
 //       problem.
-bool os::pd_commit_memory(char* addr, size_t size, bool exec) {
+int os::Linux::commit_memory_impl(char* addr, size_t size, bool exec) {
   int prot = exec ? PROT_READ|PROT_WRITE|PROT_EXEC : PROT_READ|PROT_WRITE;
   uintptr_t res = (uintptr_t) ::mmap(addr, size, prot,
                                    MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0);
@@ -2559,11 +2574,48 @@
     if (UseNUMAInterleaving) {
       numa_make_global(addr, size);
     }
-    return true;
+    return 0;
   }
-  return false;
+
+  int err = errno;  // save errno from mmap() call above
+
+  // see if the error is one we can let the caller handle
+  switch (err) {
+  case EBADF:
+  case EINVAL:
+  case ENOTSUP:
+    // let the caller deal with these errors
+    break;
+
+  default:
+    // Any remaining errors on this OS can cause our reserved mapping
+    // to be lost. That can cause confusion where different data
+    // structures think they have the same memory mapped. The worst
+    // scenario is if both the VM and a library think they have the
+    // same memory mapped.
+    warn_fail_commit_memory(addr, size, exec, err);
+    vm_exit_out_of_memory(size, OOM_MMAP_ERROR, "committing reserved memory.");
+    break;
+  }
+
+  return err;
 }
 
+bool os::pd_commit_memory(char* addr, size_t size, bool exec) {
+  return os::Linux::commit_memory_impl(addr, size, exec) == 0;
+}
+
+void os::pd_commit_memory_or_exit(char* addr, size_t size, bool exec,
+                                  const char* mesg) {
+  assert(mesg != NULL, "mesg must be specified");
+  int err = os::Linux::commit_memory_impl(addr, size, exec);
+  if (err != 0) {
+    // the caller wants all commit errors to exit with the specified mesg:
+    warn_fail_commit_memory(addr, size, exec, err);
+    vm_exit_out_of_memory(size, OOM_MMAP_ERROR, mesg);
+  }
+}
+
 // Define MAP_HUGETLB here so we can build HotSpot on old systems.
 #ifndef MAP_HUGETLB
 #define MAP_HUGETLB 0x40000
@@ -2574,8 +2626,9 @@
 #define MADV_HUGEPAGE 14
 #endif
 
-bool os::pd_commit_memory(char* addr, size_t size, size_t alignment_hint,
-                       bool exec) {
+int os::Linux::commit_memory_impl(char* addr, size_t size,
+                                  size_t alignment_hint, bool exec) {
+  int err;
   if (UseHugeTLBFS && alignment_hint > (size_t)vm_page_size()) {
     int prot = exec ? PROT_READ|PROT_WRITE|PROT_EXEC : PROT_READ|PROT_WRITE;
     uintptr_t res =
@@ -2586,18 +2639,64 @@
       if (UseNUMAInterleaving) {
         numa_make_global(addr, size);
       }
-      return true;
+      return 0;
     }
+
+    err = errno;  // save errno from mmap() call above
+
+    switch (err) {
+    case EBADF:
+    case EINVAL:
+    case ENOTSUP:
+      // these errors are OK for retrying with small pages
+      break;
+
+    default:
+      // Any remaining errors on this OS can cause our reserved mapping
+      // to be lost. That can cause confusion where different data
+      // structures think they have the same memory mapped. The worst
+      // scenario is if both the VM and a library think they have the
+      // same memory mapped.
+      //
+      // However, it is not clear that this loss of our reserved mapping
+      // happens with large pages on Linux or that we cannot recover
+      // from the loss. For now, we just issue a warning and we don't
+      // call vm_exit_out_of_memory(). This issue is being tracked by
+      // JBS-8007074.
+      warn_fail_commit_memory(addr, size, alignment_hint, exec, err);
+#if 0
+      vm_exit_out_of_memory(size, OOM_MMAP_ERROR,
+                            "committing reserved memory.");
+#endif
+      break;
+    }
     // Fall through and try to use small pages
   }
 
-  if (commit_memory(addr, size, exec)) {
+  err = os::Linux::commit_memory_impl(addr, size, exec);
+  if (err == 0) {
     realign_memory(addr, size, alignment_hint);
-    return true;
   }
-  return false;
+  return err;
 }
 
+bool os::pd_commit_memory(char* addr, size_t size, size_t alignment_hint,
+                          bool exec) {
+  return os::Linux::commit_memory_impl(addr, size, alignment_hint, exec) == 0;
+}
+
+void os::pd_commit_memory_or_exit(char* addr, size_t size,
+                                  size_t alignment_hint, bool exec,
+                                  const char* mesg) {
+  assert(mesg != NULL, "mesg must be specified");
+  int err = os::Linux::commit_memory_impl(addr, size, alignment_hint, exec);
+  if (err != 0) {
+    // the caller wants all commit errors to exit with the specified mesg:
+    warn_fail_commit_memory(addr, size, alignment_hint, exec, err);
+    vm_exit_out_of_memory(size, OOM_MMAP_ERROR, mesg);
+  }
+}
+
 void os::pd_realign_memory(char *addr, size_t bytes, size_t alignment_hint) {
   if (UseHugeTLBFS && alignment_hint > (size_t)vm_page_size()) {
     // We don't check the return value: madvise(MADV_HUGEPAGE) may not
@@ -2613,7 +2712,7 @@
   // small pages on top of the SHM segment. This method always works for small pages, so we
   // allow that in any case.
   if (alignment_hint <= (size_t)os::vm_page_size() || !UseSHM) {
-    commit_memory(addr, bytes, alignment_hint, false);
+    commit_memory(addr, bytes, alignment_hint, !ExecMem);
   }
 }
 
@@ -2866,7 +2965,7 @@
       ::munmap((void*)stack_extent, (uintptr_t)addr - stack_extent);
   }
 
-  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
@@ -2988,7 +3087,7 @@
                   MAP_ANONYMOUS|MAP_PRIVATE|MAP_HUGETLB,
                   -1, 0);
 
-  if (p != (void *) -1) {
+  if (p != MAP_FAILED) {
     // We don't know if this really is a huge page or not.
     FILE *fp = fopen("/proc/self/maps", "r");
     if (fp) {
@@ -4283,7 +4382,7 @@
 
   if (!UseMembar) {
     address mem_serialize_page = (address) ::mmap(NULL, Linux::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