Avoid messing with the stack overflow limits while interrupts...

src/execution.h

 // 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 181 matching lines @@
   }
   static Address address_of_jslimit() {
     return reinterpret_cast<Address>(&thread_local_.jslimit_);
   }
   static Address address_of_real_jslimit() {
     return reinterpret_cast<Address>(&thread_local_.real_jslimit_);
   }
 
  private:
   // You should hold the ExecutionAccess lock when calling this method.
-  static bool IsSet(const ExecutionAccess& lock);
+  static bool has_pending_interrupts(const ExecutionAccess& lock) {
+    // Sanity check: We shouldn't be asking about pending interrupts
+    // unless we're not postponing them anymore.
+    ASSERT(!should_postpone_interrupts(lock));
+    return thread_local_.interrupt_flags_ != 0;
+  }
 
   // You should hold the ExecutionAccess lock when calling this method.
-  static void set_limits(uintptr_t value, const ExecutionAccess& lock) {
-    thread_local_.jslimit_ = value;
-    thread_local_.climit_ = value;
+  static bool should_postpone_interrupts(const ExecutionAccess& lock) {
+    return thread_local_.postpone_interrupts_nesting_ > 0;
+  }
+
+  // You should hold the ExecutionAccess lock when calling this method.
+  static void set_interrupt_limits(const ExecutionAccess& lock) {
+    // Ignore attempts to interrupt when interrupts are postponed.
+    if (should_postpone_interrupts(lock)) return;
+    thread_local_.jslimit_ = kInterruptLimit;
+    thread_local_.climit_ = kInterruptLimit;
     Heap::SetStackLimits();
   }
 
   // Reset limits to actual values. For example after handling interrupt.
   // You should hold the ExecutionAccess lock when calling this method.
   static void reset_limits(const ExecutionAccess& lock) {
     thread_local_.jslimit_ = thread_local_.real_jslimit_;
     thread_local_.climit_ = thread_local_.real_climit_;
     Heap::SetStackLimits();
   }
@@ skipping 86 matching lines @@
       v8::Handle<v8::String> name);
   static v8::Handle<v8::Value> GC(const v8::Arguments& args);
  private:
   static const char* kSource;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_EXECUTION_H_