Re: [RFC][PATCH 08/10] x86: Don't ack_APIC_irq() if lapic isdisabled in GENERIC_INTERRUPT_VECTOR handler

From: Cyrill Gorcunov
Date: Wed Sep 16 2009 - 05:03:20 EST


[Cyrill Gorcunov - Wed, Sep 16, 2009 at 12:58:35PM +0400]
...
|
| Hi Sheng,
|
| is there was some problem with it? I'm asking you
| because if disable_apic=1 then any apic write/read
| operations become NOPs. So I don't see how it may
| hurt. But I could be missing something.
|
| -- Cyrill

Ah, I see -- it's due to your other patch...
Hmm this makes all "disable apic" idea less
general. And safety of ack_APIC_irq is now
under suspicious.

-- Cyrill
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