1 files changed, 3 insertions, 1 deletions
diff --git a/i386/i386/mp_desc.c b/i386/i386/mp_desc.c
index f13a391a..3802cdc6 100644
--- a/i386/i386/mp_desc.c
+++ b/i386/i386/mp_desc.c
@@ -323,7 +323,9 @@ start_other_cpus(void)
 	memcpy((void*) phystokv(apboot_addr), (void*) &apboot,
 	       (uint32_t)&apbootend - (uint32_t)&apboot);
 
-	unsigned cpu;
+	unsigned cpu = cpu_number_slow();
+
+	assert (cpu == 0);
 
 	splhigh();