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Subject: Re: A big-ish machine, cannot boot
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On 11/22/10 13:56, John Baldwin wrote:
> On Friday, November 19, 2010 1:20:53 pm Jung-uk Kim wrote:

>> I bet these are "legacy free" machines, right?  I recently noticed
>> that recent Intel chipsets cause incredibly long delays when
>> non-existent ISA ports are accessed, most notably AT keyboard ports.
>> (My gut tells me it is going in and out of SMM repeatedly for
>> nothing.)  Back in the old days, when we had real ISA bus, it used to
>> delay very short and fixed amount time.  Those days, this behaviour
>> was even (ab)used as a delay function where a real timer is not
>> available yet. ;-)
>>
>> Try getting rid of all unnecessary device drivers from your kernel
>> configuration.

Well, there are no ISA devices in the AMD64 GENERIC that I can see...

> Someone had some patches to the atkbd early probe to work around long delays
> during the keyboard probe for this reason.

I've just tried booting 9-CURRENT and it is much faster. There's still a 
delay (maybe a minute) but definitely faster.