diff --git a/[refs] b/[refs]
index 8cb6799b5406..a10cf7cabe2e 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e89eb43863c2d9f11a3bbe766766fe646e6c50d9
+refs/heads/master: a2d332fa3445160519de03c350a59602ac1c3df9
diff --git a/trunk/arch/x86/kernel/io_apic.c b/trunk/arch/x86/kernel/io_apic.c
index 7ca556690474..4e44fd1f466e 100644
--- a/trunk/arch/x86/kernel/io_apic.c
+++ b/trunk/arch/x86/kernel/io_apic.c
@@ -2077,6 +2077,8 @@ static void __init setup_ioapic_ids_from_mpc(void)
 
 		reg_00.bits.ID = mp_ioapics[apic].mp_apicid;
 		spin_lock_irqsave(&ioapic_lock, flags);
+		io_apic_write(apic, 0, reg_00.raw);
+		spin_unlock_irqrestore(&ioapic_lock, flags);
 
 		/*
 		 * Sanity check