--- zzzz-none-000/linux-2.6.32.60/kernel/signal.c	2012-10-07 21:41:24.000000000 +0000
+++ ur8-7270-606/linux-2.6.32.60/kernel/signal.c	2011-07-20 07:23:51.000000000 +0000
@@ -1072,6 +1072,7 @@
 
 	return sighand;
 }
+EXPORT_SYMBOL(lock_task_sighand);
 
 /*
  * send signal info to all the members of a group