Index: head/tests/sys/vm/page_fault_signal.c
===================================================================
--- head/tests/sys/vm/page_fault_signal.c
+++ head/tests/sys/vm/page_fault_signal.c
@@ -107,7 +107,6 @@
 ATF_TC_BODY(page_fault_signal__segv_accerr_2, tc)
 {
 	int *p;
-	volatile int dummy;
 	int sz;
 
 	sz = getpagesize();
@@ -115,7 +114,7 @@
 	ATF_REQUIRE(p != MAP_FAILED);
 	if (sigsetjmp(sig_env, 1) == 0) {
 		setup_signals();
-		dummy = *p;
+		(void)*(volatile int *)p;
 	}
 	(void)munmap(p, sz);
 	ATF_CHECK_EQ(SIGSEGV, last_sig);