Andi Kleen <[email protected]> writes:
> On Tuesday 04 October 2005 17:13, Eric W. Biederman wrote:
>> All kinds of ugliness exists because we don't initialize
>> the apics during init_IRQs.
>> - We calibrate jiffies in non apic mode even when we are using apics.
>> - We have to have special code to initialize the apics when non-smp.
>> - The legacy i8259 must exist and be setup correctly, even
>> we won't use it past initialization.
>
> Actually some setups use its timer even in ACPI mode. Do you take this into
> account?
The patch is basically code motion and duplication removal with just a
few tweaks thrown in to account for the change in location in the
kernel boot process when all of occurs.
So everything that was working should continue to work.
> In theory it looks reasonable, but I guess it won't work without the bogus
> watchdog change. That would need to be resolved first.
Sure. That should be straight forward. The only part that breaks is
the watchdog initialization/testing. As I recall there was no obvious
place to put it. The call has to happen after everything is running
so it is a bit tricky to find a good place to put it.
Eric
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