FreeBSD kernel doesn't boot on FUJITSU PRIMERGY RX200 S5 server
sobomax at FreeBSD.org
Wed Apr 21 20:06:26 UTC 2010
John Baldwin wrote:
> On Tuesday 20 April 2010 7:35:46 pm Matthew Jacob wrote:
>> On 04/20/2010 03:44 PM, Maxim Sobolev wrote:
>>> Maxim Sobolev wrote:
>>>>> Maybe try adding
>>>>> to /boot/device.hints? That has reportedly removed minute-long boot
>>>>> delays on some Nehalem machines.
>>>> No, that have not helped at all. I measured the delay - it's about 6
>>>> minutes from boot command to the first "smap" message. Do you or
>>>> anybody else have other ideas?
>>> Actually it helped, thank you very much! The problem was that I have
>>> had my hints compiled into the kernel itself.
>> Me too!
> I can't reproduce this currently, but it would be good to debug this further.
> My suggestions on how to do this would be to create an array of uint64_t and
> save TSC values (rdtsc()) into it at specific points in the atkbd/syscons
> console init. You can then print out the deltas between array entries once
> the console is fully initialized. Moving the rdtsc() calls around should
> allow one to determine where in the atkbd/syscons init the long pause is
There is already a code to detect non-existing AT keyboard and avoid
attaching atkbd to it. The code is i386-only at the moment, I am trying
to figure out how to modify it so that it works on amd64 as well.
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