Allow three runtime call attempts before throwing an out of...

src/runtime.cc

 // Copyright 2006-2008 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 5752 matching lines @@
     if (strcmp(f->name, name) == 0) {
       return f;
     }
   }
   return NULL;
 }
 
 
 void Runtime::PerformGC(Object* result) {
   Failure* failure = Failure::cast(result);
-  // Try to do a garbage collection; ignore it if it fails. The C
-  // entry stub will throw an out-of-memory exception in that case.
-  Heap::CollectGarbage(failure->requested(), failure->allocation_space());
+  if (failure->IsRetryAfterGC()) {
+    // Try to do a garbage collection; ignore it if it fails. The C
+    // entry stub will throw an out-of-memory exception in that case.
+    Heap::CollectGarbage(failure->requested(), failure->allocation_space());
+  } else {
+    // Handle last resort GC and make sure to allow future allocations
+    // to grow the heap without causing GCs (if possible).
+    Heap::CollectAllGarbage();
+  }
 }
 
 
 } }  // namespace v8::internal