diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 84fb405eee87..8192009cb924 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -1447,6 +1447,8 @@ ia64_mca_cmc_int_handler(int cmc_irq, void *arg)
 	/* Get the CMC error record and log it */
 	ia64_mca_log_sal_error_record(SAL_INFO_TYPE_CMC);
 
+	local_irq_disable();
+
 	return IRQ_HANDLED;
 }