x86: fix 32-bit ioapic lockup with sparseirqs
authorYinghai Lu <yhlu.kernel@gmail.com>
Thu, 21 Aug 2008 19:56:32 +0000 (12:56 -0700)
committerIngo Molnar <mingo@elte.hu>
Thu, 16 Oct 2008 14:52:59 +0000 (16:52 +0200)
Missed two lines when copying.

Fix panic on one of Ingo's machines that need to adjust ioapic id when
acpi off/ 32bit.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
arch/x86/kernel/io_apic.c

index 7ca55669047458311d3bd90cae820d4b40a70464..4e44fd1f466ef122d53db3b1df34d04b651d6a31 100644 (file)
@@ -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