* vm.c (vm_free): clear free'ed living_threads field.

[ruby-dev:31163]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@12761 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Fri Jul 13 17:32:37 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* vm.c (vm_free): clear free'ed living_threads field.
+	  [ruby-dev:31163]
+
 Fri Jul 13 16:10:00 2007  Tanaka Akira  <akr@fsij.org>
 
 	* lib/open-uri.rb (URI::Generic#find_proxy): use ENV.to_hash to access

vm.c

@@ -1448,6 +1448,7 @@ vm_free(void *ptr)
 	rb_vm_t *vmobj = ptr;
 
 	st_free_table(vmobj->living_threads);
+	vmobj->living_threads = 0;
 	/* TODO: MultiVM Instance */
 	/* VM object should not be cleaned by GC */
 	/* ruby_xfree(ptr); */