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.
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