diff --git a/[refs] b/[refs]
index 0d880a78e3b1..cd13a5bca25f 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 10ad1b7363090c0eec2b4054a5a3b82d2cc09ee5
+refs/heads/master: eff2c2f6f569267aa52e2431844cec30637d7ade
diff --git a/trunk/arch/alpha/kernel/irq.c b/trunk/arch/alpha/kernel/irq.c
index 9006063e7369..da677f829f76 100644
--- a/trunk/arch/alpha/kernel/irq.c
+++ b/trunk/arch/alpha/kernel/irq.c
@@ -151,8 +151,13 @@ handle_irq(int irq, struct pt_regs * regs)
 	}
 
 	irq_enter();
+	/*
+	 * __do_IRQ() must be called with IPL_MAX. Note that we do not
+	 * explicitly enable interrupts afterwards - some MILO PALcode
+	 * (namely LX164 one) seems to have severe problems with RTI
+	 * at IPL 0.
+	 */
 	local_irq_disable();
 	__do_IRQ(irq, regs);
-	local_irq_enable();
 	irq_exit();
 }