Re: Why do so many machines need "noapic"?

From: Matthew Garrett
Date: Sat Sep 15 2007 - 08:15:45 EST


On Sat, Sep 15, 2007 at 04:08:02AM -0700, Andrew Morton wrote:

> I believe that about two years ago we broke something which caused quite a
> large number of people to need noapic. Is that the case with any of your
> machines? Do you know if they run 2.6.ancient without noapic?

My recollection is that we shifted from "Enable the apic even if the
BIOS disabled it" to "Only use the apic if the BIOS didn't disable it"
around that time, which meant that distributions could actually turn on
apic-on-up support without breaking everything. That might correspond to
what you're seeing.

--
Matthew Garrett | mjg59@xxxxxxxxxxxxx
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