diff --git a/sys/powerpc/booke/machdep_e500.c b/sys/powerpc/booke/machdep_e500.c
--- a/sys/powerpc/booke/machdep_e500.c
+++ b/sys/powerpc/booke/machdep_e500.c
@@ -134,9 +134,6 @@
 int
 cpu_machine_check(struct thread *td, struct trapframe *frame, int *ucode)
 {
-	register_t mcsr;
-
-	mcsr = mfspr(SPR_MCSR);
 
 	*ucode = BUS_OBJERR;
 	return (SIGBUS);