diff --git a/[refs] b/[refs]
index f789f18be6bd..57de5baadad8 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: cab093b9d4b40c71c6261a11ba8f1ca027e09008
+refs/heads/master: 899ced0dd9457b9c349663ca4cb4ec09167728a6
diff --git a/trunk/include/asm-x86_64/apic.h b/trunk/include/asm-x86_64/apic.h
index 9d43ac8519bf..9c96a0a8d1bd 100644
--- a/trunk/include/asm-x86_64/apic.h
+++ b/trunk/include/asm-x86_64/apic.h
@@ -49,7 +49,8 @@ static __inline unsigned int apic_read(unsigned long reg)
 
 static __inline__ void apic_wait_icr_idle(void)
 {
-	while ( apic_read( APIC_ICR ) & APIC_ICR_BUSY );
+	while (apic_read( APIC_ICR ) & APIC_ICR_BUSY)
+		cpu_relax();
 }
 
 static inline void ack_APIC_irq(void)