page0page.c:

  Fix a bug: a race condition could cause that the first B-tree page splits would get a corrupt page directory, whic often results in the assertion in page_dir_find_slot(); found with a test of 3000 startups/shutdowns; it is not clear that this would have caused any corruption which users have reported

innobase/page/page0page.c

@@ -406,12 +406,6 @@ page_create(
 	
 	rec_set_next_offs(infimum_rec, (ulint)(supremum_rec - page)); 
 	rec_set_next_offs(supremum_rec, 0);
-
-	if (page_template == NULL) {
-		page_template = mem_alloc(UNIV_PAGE_SIZE);
-
-		ut_memcpy(page_template, page, UNIV_PAGE_SIZE);
-	}
 	
 	return(page);
 }