[PATCH] The kernel cannot cope with modules without unwind data, which happens

with data-only modules like the fs/nls modules when compiling with gcc
3.1.  This patch fixes the problem.

include/asm-ia64/module.h

@@ -51,6 +51,9 @@ ia64_module_init (struct module *mod)
 		return 0;
 	archdata = (struct archdata *)(mod->archdata_start);
 
+	if (archdata->unw_start == 0)
+		return 0;
+
 	/*
 	 * Make sure the unwind pointers are sane.
 	 */