From 1be7c799e6ed39f7ac41906c05db149e8c391add Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 15 Aug 2008 07:59:33 +0000
Subject: [PATCH] * vm_core.h (exec_event_hooks): skips RubyVM::FrozenCore.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@18640 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog | 4 +++-
 vm_core.h | 1 +
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 9760eb3b68..949050ece4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,4 +1,6 @@
-Fri Aug 15 15:30:40 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Aug 15 16:59:30 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_core.h (exec_event_hooks): skips RubyVM::FrozenCore.
 
 	* vm.c (Init_VM): get rid of SEGV in a trace proc.
 
diff --git a/vm_core.h b/vm_core.h
index 829ac4593e..2e8462422b 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -714,6 +714,7 @@ void rb_thread_execute_interrupts(rb_thread_t *);
 static inline void
 exec_event_hooks(rb_event_hook_t *hook, rb_event_flag_t flag, VALUE self, ID id, VALUE klass)
 {
+    if (self == rb_mRubyVMFrozenCore) return;
     while (hook) {
 	if (flag & hook->flag) {
 	    (*hook->func)(flag, hook->data, self, id, klass);