Return 0 as maximal amount of physical memory if there is no limit.

src/platform-posix.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 78 matching lines @@
 }
 
 
 // Maximum size of the virtual memory.  0 means there is no artificial
 // limit.
 
 intptr_t OS::MaxVirtualMemory() {
   struct rlimit limit;
   int result = getrlimit(RLIMIT_DATA, &limit);
   if (result != 0) return 0;
+  if (limit.rlim_cur == RLIM_INFINITY) return 0;
   return limit.rlim_cur;
 }
 
 
 uint64_t OS::TotalPhysicalMemory() {
 #if V8_OS_MACOSX
   int mib[2];
   mib[0] = CTL_HW;
   mib[1] = HW_MEMSIZE;
   int64_t size = 0;
@@ skipping 697 matching lines @@
 
 void Thread::SetThreadLocal(LocalStorageKey key, void* value) {
   pthread_key_t pthread_key = LocalKeyToPthreadKey(key);
   int result = pthread_setspecific(pthread_key, value);
   ASSERT_EQ(0, result);
   USE(result);
 }
 
 
 } }  // namespace v8::internal