8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint

Detect mmap() commit failures in Linux and Solaris os::commit_memory() impls and call vm_exit_out_of_memory(). Add os::commit_memory_or_exit(). Also tidy up some NMT accounting and some mmap() return value checking.

Reviewed-by: zgu, stefank, dholmes, dsamersoff

hotspot/src/os/bsd/vm/os_bsd.cpp

@@ -2074,6 +2074,13 @@ void bsd_wrap_code(char* base, size_t size) {
   }
 }
 
+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 @@ bool os::pd_commit_memory(char* addr, size_t size, bool exec) {
   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) {
-#endif
+    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_uncommit_memory(char* addr, size_t size) {
 }
 
 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 @@ jint os::init_2(void)
 
   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

hotspot/src/os/bsd/vm/perfMemory_bsd.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -60,7 +60,7 @@ static char* create_standard_memory(size_t size) {
   }
 
   // commit memory
-  if (!os::commit_memory(mapAddress, size)) {
+  if (!os::commit_memory(mapAddress, size, !ExecMem)) {
     if (PrintMiscellaneous && Verbose) {
       warning("Could not commit PerfData memory\n");
     }

hotspot/src/os/linux/vm/os_linux.cpp

@@ -2612,11 +2612,49 @@ void linux_wrap_code(char* base, size_t size) {
   }
 }
 
+static bool recoverable_mmap_error(int err) {
+  // See if the error is one we can let the caller handle. This
+  // list of errno values comes from JBS-6843484. I can't find a
+  // Linux man page that documents this specific set of errno
+  // values so while this list currently matches Solaris, it may
+  // change as we gain experience with this failure mode.
+  switch (err) {
+  case EBADF:
+  case EINVAL:
+  case ENOTSUP:
+    // let the caller deal with these errors
+    return true;
+
+  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.
+    return false;
+  }
+}
+
+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);
@@ -2624,9 +2662,32 @@ bool os::pd_commit_memory(char* addr, size_t size, bool exec) {
     if (UseNUMAInterleaving) {
       numa_make_global(addr, size);
     }
-    return true;
+    return 0;
+  }
+
+  int err = errno;  // save errno from mmap() call above
+
+  if (!recoverable_mmap_error(err)) {
+    warn_fail_commit_memory(addr, size, exec, err);
+    vm_exit_out_of_memory(size, OOM_MMAP_ERROR, "committing reserved memory.");
+  }
+
+  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);
   }
-  return false;
 }
 
 // Define MAP_HUGETLB here so we can build HotSpot on old systems.
@@ -2639,8 +2700,9 @@ bool os::pd_commit_memory(char* addr, size_t size, bool exec) {
 #define MADV_HUGEPAGE 14
 #endif
 
-bool os::pd_commit_memory(char* addr, size_t size, size_t alignment_hint,
+int os::Linux::commit_memory_impl(char* addr, size_t size,
-                       bool exec) {
+                                  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 =
@@ -2651,16 +2713,46 @@ bool os::pd_commit_memory(char* addr, size_t size, size_t alignment_hint,
       if (UseNUMAInterleaving) {
         numa_make_global(addr, size);
       }
-      return true;
+      return 0;
+    }
+
+    err = errno;  // save errno from mmap() call above
+
+    if (!recoverable_mmap_error(err)) {
+      // 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);
+//    vm_exit_out_of_memory(size, OOM_MMAP_ERROR,
+//                          "committing reserved memory.");
     }
     // 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) {
@@ -2678,7 +2770,7 @@ void os::pd_free_memory(char *addr, size_t bytes, size_t alignment_hint) {
   // 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);
   }
 }
 
@@ -2931,7 +3023,7 @@ bool os::pd_create_stack_guard_pages(char* addr, size_t size) {
       ::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
@@ -3053,7 +3145,7 @@ bool os::Linux::hugetlbfs_sanity_check(bool warn, size_t page_size) {
                   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) {
@@ -4393,7 +4485,7 @@ jint os::init_2(void)
 
   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

hotspot/src/os/linux/vm/os_linux.hpp

@@ -76,6 +76,10 @@ class Linux {
   static julong physical_memory() { return _physical_memory; }
   static void initialize_system_info();
 
+  static int commit_memory_impl(char* addr, size_t bytes, bool exec);
+  static int commit_memory_impl(char* addr, size_t bytes,
+                                size_t alignment_hint, bool exec);
+
   static void set_glibc_version(const char *s)      { _glibc_version = s; }
   static void set_libpthread_version(const char *s) { _libpthread_version = s; }
 

hotspot/src/os/linux/vm/perfMemory_linux.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -60,7 +60,7 @@ static char* create_standard_memory(size_t size) {
   }
 
   // commit memory
-  if (!os::commit_memory(mapAddress, size)) {
+  if (!os::commit_memory(mapAddress, size, !ExecMem)) {
     if (PrintMiscellaneous && Verbose) {
       warning("Could not commit PerfData memory\n");
     }

hotspot/src/os/solaris/vm/os_solaris.cpp

@@ -2784,7 +2784,42 @@ int os::vm_allocation_granularity() {
   return page_size;
 }
 
-bool os::pd_commit_memory(char* addr, size_t bytes, bool exec) {
+static bool recoverable_mmap_error(int err) {
+  // See if the error is one we can let the caller handle. This
+  // list of errno values comes from the Solaris mmap(2) man page.
+  switch (err) {
+  case EBADF:
+  case EINVAL:
+  case ENOTSUP:
+    // let the caller deal with these errors
+    return true;
+
+  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.
+    return false;
+  }
+}
+
+static void warn_fail_commit_memory(char* addr, size_t bytes, bool exec,
+                                    int err) {
+  warning("INFO: os::commit_memory(" PTR_FORMAT ", " SIZE_FORMAT
+          ", %d) failed; error='%s' (errno=%d)", addr, bytes, exec,
+          strerror(err), err);
+}
+
+static void warn_fail_commit_memory(char* addr, size_t bytes,
+                                    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, bytes,
+          alignment_hint, exec, strerror(err), err);
+}
+
+int os::Solaris::commit_memory_impl(char* addr, size_t bytes, bool exec) {
   int prot = exec ? PROT_READ|PROT_WRITE|PROT_EXEC : PROT_READ|PROT_WRITE;
   size_t size = bytes;
   char *res = Solaris::mmap_chunk(addr, size, MAP_PRIVATE|MAP_FIXED, prot);
@@ -2792,14 +2827,38 @@ bool os::pd_commit_memory(char* addr, size_t bytes, bool exec) {
     if (UseNUMAInterleaving) {
       numa_make_global(addr, bytes);
     }
-    return true;
+    return 0;
-  }
-  return false;
   }
 
-bool os::pd_commit_memory(char* addr, size_t bytes, size_t alignment_hint,
+  int err = errno;  // save errno from mmap() call in mmap_chunk()
-                       bool exec) {
+
-  if (commit_memory(addr, bytes, exec)) {
+  if (!recoverable_mmap_error(err)) {
+    warn_fail_commit_memory(addr, bytes, exec, err);
+    vm_exit_out_of_memory(bytes, OOM_MMAP_ERROR, "committing reserved memory.");
+  }
+
+  return err;
+}
+
+bool os::pd_commit_memory(char* addr, size_t bytes, bool exec) {
+  return Solaris::commit_memory_impl(addr, bytes, exec) == 0;
+}
+
+void os::pd_commit_memory_or_exit(char* addr, size_t bytes, bool exec,
+                                  const char* mesg) {
+  assert(mesg != NULL, "mesg must be specified");
+  int err = os::Solaris::commit_memory_impl(addr, bytes, exec);
+  if (err != 0) {
+    // the caller wants all commit errors to exit with the specified mesg:
+    warn_fail_commit_memory(addr, bytes, exec, err);
+    vm_exit_out_of_memory(bytes, OOM_MMAP_ERROR, mesg);
+  }
+}
+
+int os::Solaris::commit_memory_impl(char* addr, size_t bytes,
+                                    size_t alignment_hint, bool exec) {
+  int err = Solaris::commit_memory_impl(addr, bytes, exec);
+  if (err == 0) {
     if (UseMPSS && alignment_hint > (size_t)vm_page_size()) {
       // If the large page size has been set and the VM
       // is using large pages, use the large page size
@@ -2821,9 +2880,25 @@ bool os::pd_commit_memory(char* addr, size_t bytes, size_t alignment_hint,
       // Since this is a hint, ignore any failures.
       (void)Solaris::set_mpss_range(addr, bytes, page_size);
     }
-    return true;
   }
-  return false;
+  return err;
+}
+
+bool os::pd_commit_memory(char* addr, size_t bytes, size_t alignment_hint,
+                          bool exec) {
+  return Solaris::commit_memory_impl(addr, bytes, alignment_hint, exec) == 0;
+}
+
+void os::pd_commit_memory_or_exit(char* addr, size_t bytes,
+                                  size_t alignment_hint, bool exec,
+                                  const char* mesg) {
+  assert(mesg != NULL, "mesg must be specified");
+  int err = os::Solaris::commit_memory_impl(addr, bytes, alignment_hint, exec);
+  if (err != 0) {
+    // the caller wants all commit errors to exit with the specified mesg:
+    warn_fail_commit_memory(addr, bytes, alignment_hint, exec, err);
+    vm_exit_out_of_memory(bytes, OOM_MMAP_ERROR, mesg);
+  }
 }
 
 // Uncommit the pages in a specified region.
@@ -2835,7 +2910,7 @@ void os::pd_free_memory(char* addr, size_t bytes, size_t alignment_hint) {
 }
 
 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);
 }
 
 bool os::remove_stack_guard_pages(char* addr, size_t size) {

hotspot/src/os/solaris/vm/os_solaris.hpp

@@ -168,6 +168,9 @@ class Solaris {
   static int _dev_zero_fd;
   static int get_dev_zero_fd() { return _dev_zero_fd; }
   static void set_dev_zero_fd(int fd) { _dev_zero_fd = fd; }
+  static int commit_memory_impl(char* addr, size_t bytes, bool exec);
+  static int commit_memory_impl(char* addr, size_t bytes,
+                                size_t alignment_hint, bool exec);
   static char* mmap_chunk(char *addr, size_t size, int flags, int prot);
   static char* anon_mmap(char* requested_addr, size_t bytes, size_t alignment_hint, bool fixed);
   static bool mpss_sanity_check(bool warn, size_t * page_size);

hotspot/src/os/solaris/vm/perfMemory_solaris.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -62,7 +62,7 @@ static char* create_standard_memory(size_t size) {
   }
 
   // commit memory
-  if (!os::commit_memory(mapAddress, size)) {
+  if (!os::commit_memory(mapAddress, size, !ExecMem)) {
     if (PrintMiscellaneous && Verbose) {
       warning("Could not commit PerfData memory\n");
     }

hotspot/src/os/windows/vm/os_windows.cpp

@@ -2524,7 +2524,7 @@ LONG WINAPI topLevelExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo) {
                   addr = (address)((uintptr_t)addr &
                          (~((uintptr_t)os::vm_page_size() - (uintptr_t)1)));
                   os::commit_memory((char *)addr, thread->stack_base() - addr,
-                                    false );
+                                    !ExecMem);
                   return EXCEPTION_CONTINUE_EXECUTION;
           }
           else
@@ -3172,6 +3172,15 @@ bool os::release_memory_special(char* base, size_t bytes) {
 void os::print_statistics() {
 }
 
+static void warn_fail_commit_memory(char* addr, size_t bytes, bool exec) {
+  int err = os::get_last_error();
+  char buf[256];
+  size_t buf_len = os::lasterror(buf, sizeof(buf));
+  warning("INFO: os::commit_memory(" PTR_FORMAT ", " SIZE_FORMAT
+          ", %d) failed; error='%s' (DOS error/errno=%d)", addr, bytes,
+          exec, buf_len != 0 ? buf : "<no_error_string>", err);
+}
+
 bool os::pd_commit_memory(char* addr, size_t bytes, bool exec) {
   if (bytes == 0) {
     // Don't bother the OS with noops.
@@ -3186,11 +3195,17 @@ bool os::pd_commit_memory(char* addr, size_t bytes, bool exec) {
   // is always within a reserve covered by a single VirtualAlloc
   // in that case we can just do a single commit for the requested size
   if (!UseNUMAInterleaving) {
-    if (VirtualAlloc(addr, bytes, MEM_COMMIT, PAGE_READWRITE) == NULL) return false;
+    if (VirtualAlloc(addr, bytes, MEM_COMMIT, PAGE_READWRITE) == NULL) {
+      NOT_PRODUCT(warn_fail_commit_memory(addr, bytes, exec);)
+      return false;
+    }
     if (exec) {
       DWORD oldprot;
       // Windows doc says to use VirtualProtect to get execute permissions
-      if (!VirtualProtect(addr, bytes, PAGE_EXECUTE_READWRITE, &oldprot)) return false;
+      if (!VirtualProtect(addr, bytes, PAGE_EXECUTE_READWRITE, &oldprot)) {
+        NOT_PRODUCT(warn_fail_commit_memory(addr, bytes, exec);)
+        return false;
+      }
     }
     return true;
   } else {
@@ -3205,13 +3220,21 @@ bool os::pd_commit_memory(char* addr, size_t bytes, bool exec) {
       MEMORY_BASIC_INFORMATION alloc_info;
       VirtualQuery(next_alloc_addr, &alloc_info, sizeof(alloc_info));
       size_t bytes_to_rq = MIN2(bytes_remaining, (size_t)alloc_info.RegionSize);
-      if (VirtualAlloc(next_alloc_addr, bytes_to_rq, MEM_COMMIT, PAGE_READWRITE) == NULL)
+      if (VirtualAlloc(next_alloc_addr, bytes_to_rq, MEM_COMMIT,
+                       PAGE_READWRITE) == NULL) {
+        NOT_PRODUCT(warn_fail_commit_memory(next_alloc_addr, bytes_to_rq,
+                                            exec);)
         return false;
+      }
       if (exec) {
         DWORD oldprot;
-        if (!VirtualProtect(next_alloc_addr, bytes_to_rq, PAGE_EXECUTE_READWRITE, &oldprot))
+        if (!VirtualProtect(next_alloc_addr, bytes_to_rq,
+                            PAGE_EXECUTE_READWRITE, &oldprot)) {
+          NOT_PRODUCT(warn_fail_commit_memory(next_alloc_addr, bytes_to_rq,
+                                              exec);)
           return false;
         }
+      }
       bytes_remaining -= bytes_to_rq;
       next_alloc_addr += bytes_to_rq;
     }
@@ -3222,7 +3245,24 @@ bool os::pd_commit_memory(char* addr, size_t bytes, bool exec) {
 
 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)) {
+    warn_fail_commit_memory(addr, size, exec);
+    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);
 }
 
 bool os::pd_uncommit_memory(char* addr, size_t bytes) {
@@ -3240,7 +3280,7 @@ bool os::pd_release_memory(char* addr, size_t bytes) {
 }
 
 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);
 }
 
 bool os::remove_stack_guard_pages(char* addr, size_t size) {
@@ -3264,8 +3304,9 @@ bool os::protect_memory(char* addr, size_t bytes, ProtType prot,
 
   // Strange enough, but on Win32 one can change protection only for committed
   // memory, not a big deal anyway, as bytes less or equal than 64K
-  if (!is_committed && !commit_memory(addr, bytes, prot == MEM_PROT_RWX)) {
+  if (!is_committed) {
-    fatal("cannot commit protection page");
+    commit_memory_or_exit(addr, bytes, prot == MEM_PROT_RWX,
+                          "cannot commit protection page");
   }
   // One cannot use os::guard_memory() here, as on Win32 guard page
   // have different (one-shot) semantics, from MSDN on PAGE_GUARD:

hotspot/src/os/windows/vm/perfMemory_windows.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -58,7 +58,7 @@ static char* create_standard_memory(size_t size) {
   }
 
   // commit memory
-  if (!os::commit_memory(mapAddress, size)) {
+  if (!os::commit_memory(mapAddress, size, !ExecMem)) {
     if (PrintMiscellaneous && Verbose) {
       warning("Could not commit PerfData memory\n");
     }

hotspot/src/share/vm/gc_implementation/parallelScavenge/cardTableExtension.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -565,12 +565,10 @@ bool CardTableExtension::resize_commit_uncommit(int changed_region,
     if(new_start_aligned < new_end_for_commit) {
       MemRegion new_committed =
         MemRegion(new_start_aligned, new_end_for_commit);
-      if (!os::commit_memory((char*)new_committed.start(),
+      os::commit_memory_or_exit((char*)new_committed.start(),
-                             new_committed.byte_size())) {
+                                new_committed.byte_size(), !ExecMem,
-        vm_exit_out_of_memory(new_committed.byte_size(), OOM_MMAP_ERROR,
                                 "card table expansion");
     }
-    }
     result = true;
   } else if (new_start_aligned > cur_committed.start()) {
     // Shrink the committed region

hotspot/src/share/vm/gc_implementation/parallelScavenge/psVirtualspace.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -101,7 +101,8 @@ bool PSVirtualSpace::expand_by(size_t bytes) {
   }
 
   char* const base_addr = committed_high_addr();
-  bool result = special() || os::commit_memory(base_addr, bytes, alignment());
+  bool result = special() ||
+         os::commit_memory(base_addr, bytes, alignment(), !ExecMem);
   if (result) {
     _committed_high_addr += bytes;
   }
@@ -154,7 +155,7 @@ PSVirtualSpace::expand_into(PSVirtualSpace* other_space, size_t bytes) {
   if (tmp_bytes > 0) {
     char* const commit_base = committed_high_addr();
     if (other_space->special() ||
-        os::commit_memory(commit_base, tmp_bytes, alignment())) {
+        os::commit_memory(commit_base, tmp_bytes, alignment(), !ExecMem)) {
       // Reduce the reserved region in the other space.
       other_space->set_reserved(other_space->reserved_low_addr() + tmp_bytes,
                                 other_space->reserved_high_addr(),
@@ -269,7 +270,8 @@ bool PSVirtualSpaceHighToLow::expand_by(size_t bytes) {
   }
 
   char* const base_addr = committed_low_addr() - bytes;
-  bool result = special() || os::commit_memory(base_addr, bytes, alignment());
+  bool result = special() ||
+         os::commit_memory(base_addr, bytes, alignment(), !ExecMem);
   if (result) {
     _committed_low_addr -= bytes;
   }
@@ -322,7 +324,7 @@ size_t PSVirtualSpaceHighToLow::expand_into(PSVirtualSpace* other_space,
   if (tmp_bytes > 0) {
     char* const commit_base = committed_low_addr() - tmp_bytes;
     if (other_space->special() ||
-        os::commit_memory(commit_base, tmp_bytes, alignment())) {
+        os::commit_memory(commit_base, tmp_bytes, alignment(), !ExecMem)) {
       // Reduce the reserved region in the other space.
       other_space->set_reserved(other_space->reserved_low_addr(),
                                 other_space->reserved_high_addr() - tmp_bytes,

hotspot/src/share/vm/memory/allocation.inline.hpp

@@ -146,10 +146,7 @@ E* ArrayAllocator<E, F>::allocate(size_t length) {
     vm_exit_out_of_memory(_size, OOM_MMAP_ERROR, "Allocator (reserve)");
   }
 
-  bool success = os::commit_memory(_addr, _size, false /* executable */);
+  os::commit_memory_or_exit(_addr, _size, !ExecMem, "Allocator (commit)");
-  if (!success) {
-    vm_exit_out_of_memory(_size, OOM_MMAP_ERROR, "Allocator (commit)");
-  }
 
   return (E*)_addr;
 }

hotspot/src/share/vm/memory/cardTableModRefBS.cpp

@@ -110,11 +110,8 @@ CardTableModRefBS::CardTableModRefBS(MemRegion whole_heap,
   jbyte* guard_card = &_byte_map[_guard_index];
   uintptr_t guard_page = align_size_down((uintptr_t)guard_card, _page_size);
   _guard_region = MemRegion((HeapWord*)guard_page, _page_size);
-  if (!os::commit_memory((char*)guard_page, _page_size, _page_size)) {
+  os::commit_memory_or_exit((char*)guard_page, _page_size, _page_size,
-    // Do better than this for Merlin
+                            !ExecMem, "card table last card");
-    vm_exit_out_of_memory(_page_size, OOM_MMAP_ERROR, "card table last card");
-  }
-
   *guard_card = last_card;
 
    _lowest_non_clean =
@@ -312,12 +309,9 @@ void CardTableModRefBS::resize_covered_region(MemRegion new_region) {
         MemRegion(cur_committed.end(), new_end_for_commit);
 
       assert(!new_committed.is_empty(), "Region should not be empty here");
-      if (!os::commit_memory((char*)new_committed.start(),
+      os::commit_memory_or_exit((char*)new_committed.start(),
-                             new_committed.byte_size(), _page_size)) {
+                                new_committed.byte_size(), _page_size,
-        // Do better than this for Merlin
+                                !ExecMem, "card table expansion");
-        vm_exit_out_of_memory(new_committed.byte_size(), OOM_MMAP_ERROR,
-                "card table expansion");
-      }
     // Use new_end_aligned (as opposed to new_end_for_commit) because
     // the cur_committed region may include the guard region.
     } else if (new_end_aligned < cur_committed.end()) {

hotspot/src/share/vm/prims/whitebox.cpp

@@ -159,7 +159,7 @@ WB_END
 
 
 WB_ENTRY(void, WB_NMTCommitMemory(JNIEnv* env, jobject o, jlong addr, jlong size))
-  os::commit_memory((char *)(uintptr_t)addr, size);
+  os::commit_memory((char *)(uintptr_t)addr, size, !ExecMem);
   MemTracker::record_virtual_memory_type((address)(uintptr_t)addr, mtTest);
 WB_END
 

hotspot/src/share/vm/runtime/os.cpp

@@ -1503,6 +1503,18 @@ bool os::commit_memory(char* addr, size_t size, size_t alignment_hint,
   return res;
 }
 
+void os::commit_memory_or_exit(char* addr, size_t bytes, bool executable,
+                               const char* mesg) {
+  pd_commit_memory_or_exit(addr, bytes, executable, mesg);
+  MemTracker::record_virtual_memory_commit((address)addr, bytes, CALLER_PC);
+}
+
+void os::commit_memory_or_exit(char* addr, size_t size, size_t alignment_hint,
+                               bool executable, const char* mesg) {
+  os::pd_commit_memory_or_exit(addr, size, alignment_hint, executable, mesg);
+  MemTracker::record_virtual_memory_commit((address)addr, size, CALLER_PC);
+}
+
 bool os::uncommit_memory(char* addr, size_t bytes) {
   bool res = pd_uncommit_memory(addr, bytes);
   if (res) {

hotspot/src/share/vm/runtime/os.hpp

@@ -78,6 +78,10 @@ enum ThreadPriority {        // JLS 20.20.1-3
   CriticalPriority = 11      // Critical thread priority
 };
 
+// Executable parameter flag for os::commit_memory() and
+// os::commit_memory_or_exit().
+const bool ExecMem = true;
+
 // Typedef for structured exception handling support
 typedef void (*java_call_t)(JavaValue* value, methodHandle* method, JavaCallArguments* args, Thread* thread);
 
@@ -104,9 +108,16 @@ class os: AllStatic {
   static char*  pd_attempt_reserve_memory_at(size_t bytes, char* addr);
   static void   pd_split_reserved_memory(char *base, size_t size,
                                       size_t split, bool realloc);
-  static bool   pd_commit_memory(char* addr, size_t bytes, bool executable = false);
+  static bool   pd_commit_memory(char* addr, size_t bytes, bool executable);
   static bool   pd_commit_memory(char* addr, size_t size, size_t alignment_hint,
-                              bool executable = false);
+                                 bool executable);
+  // Same as pd_commit_memory() that either succeeds or calls
+  // vm_exit_out_of_memory() with the specified mesg.
+  static void   pd_commit_memory_or_exit(char* addr, size_t bytes,
+                                         bool executable, const char* mesg);
+  static void   pd_commit_memory_or_exit(char* addr, size_t size,
+                                         size_t alignment_hint,
+                                         bool executable, const char* mesg);
   static bool   pd_uncommit_memory(char* addr, size_t bytes);
   static bool   pd_release_memory(char* addr, size_t bytes);
 
@@ -261,9 +272,16 @@ class os: AllStatic {
   static char*  attempt_reserve_memory_at(size_t bytes, char* addr);
   static void   split_reserved_memory(char *base, size_t size,
                                       size_t split, bool realloc);
-  static bool   commit_memory(char* addr, size_t bytes, bool executable = false);
+  static bool   commit_memory(char* addr, size_t bytes, bool executable);
   static bool   commit_memory(char* addr, size_t size, size_t alignment_hint,
-                              bool executable = false);
+                              bool executable);
+  // Same as commit_memory() that either succeeds or calls
+  // vm_exit_out_of_memory() with the specified mesg.
+  static void   commit_memory_or_exit(char* addr, size_t bytes,
+                                      bool executable, const char* mesg);
+  static void   commit_memory_or_exit(char* addr, size_t size,
+                                      size_t alignment_hint,
+                                      bool executable, const char* mesg);
   static bool   uncommit_memory(char* addr, size_t bytes);
   static bool   release_memory(char* addr, size_t bytes);
 

hotspot/src/share/vm/runtime/virtualspace.cpp

@@ -533,7 +533,9 @@ bool VirtualSpace::expand_by(size_t bytes, bool pre_touch) {
            lower_high() + lower_needs <= lower_high_boundary(),
            "must not expand beyond region");
     if (!os::commit_memory(lower_high(), lower_needs, _executable)) {
-      debug_only(warning("os::commit_memory failed"));
+      debug_only(warning("INFO: os::commit_memory(" PTR_FORMAT
+                         ", lower_needs=" SIZE_FORMAT ", %d) failed",
+                         lower_high(), lower_needs, _executable);)
       return false;
     } else {
       _lower_high += lower_needs;
@@ -545,7 +547,10 @@ bool VirtualSpace::expand_by(size_t bytes, bool pre_touch) {
            "must not expand beyond region");
     if (!os::commit_memory(middle_high(), middle_needs, middle_alignment(),
                            _executable)) {
-      debug_only(warning("os::commit_memory failed"));
+      debug_only(warning("INFO: os::commit_memory(" PTR_FORMAT
+                         ", middle_needs=" SIZE_FORMAT ", " SIZE_FORMAT
+                         ", %d) failed", middle_high(), middle_needs,
+                         middle_alignment(), _executable);)
       return false;
     }
     _middle_high += middle_needs;
@@ -555,7 +560,9 @@ bool VirtualSpace::expand_by(size_t bytes, bool pre_touch) {
            upper_high() + upper_needs <= upper_high_boundary(),
            "must not expand beyond region");
     if (!os::commit_memory(upper_high(), upper_needs, _executable)) {
-      debug_only(warning("os::commit_memory failed"));
+      debug_only(warning("INFO: os::commit_memory(" PTR_FORMAT
+                         ", upper_needs=" SIZE_FORMAT ", %d) failed",
+                         upper_high(), upper_needs, _executable);)
       return false;
     } else {
       _upper_high += upper_needs;