FreeBSD kernel doesn't boot on FUJITSU PRIMERGY RX200 S5 server
sobomax at FreeBSD.org
Tue Apr 27 23:06:38 UTC 2010
Alexander Sack wrote:
> On Tue, Apr 27, 2010 at 5:25 PM, John Baldwin <jhb at freebsd.org> wrote:
>> On Tuesday 27 April 2010 5:06:37 pm Maxim Sobolev wrote:
>>> John Baldwin wrote:
>>>> On Tuesday 27 April 2010 4:26:09 pm Maxim Sobolev wrote:
>>>>> John Baldwin wrote:
>>>>>> Hmm, I think you should definitely commit the atkbdc_isa.c change first of
>>>>>> all. I'm still thinking about the other change. I wonder if we can figure
>>>>>> out that a keyboard isn't present sooner somehow? Do you know if the keyboard
>>>>>> appears to be present but just slow vs if the keyboard is eventually found to
>>>>>> not be present?
>>>>> Our syscons does keyboard probing two times - once early during kernel
>>>>> initialization before most of the subsystems have been initialized yet,
>>>>> and then "real" probing later in boot process. Interesting thing is that
>>>>> initially keyboard looks present. Reading status port in
>>>>> atkbdc_configure() gives value other than 0xff, although reading is
>>>>> thousand times slower than usually. This causes syscons try attaching
>>>>> it. Even though reading status port works, apparently either emulation
>>>>> is not complete or there is some other issue, so that it never responds
>>>>> to some commands. Slow access and lack of response results in
>>>>> wait_for_data() function waiting several minutes instead of 200ms as
>>>>> designed. This what causes that 6-10 minutes delay in boot process.
>>>> I believe the USB driver has disabled the keyboard emulation by the time the
>>>> second probe happens in syscons. Can you try disabling legacy USB support in
>>>> the BIOS just to make sure that is what causes the delay?
>>> Unfortunately it's not possible. Hosting provider doesn't allow me to
>>> have access to BIOS settings.
> Stunt double: I tried it and it has no effect. The waits in atkdbd
> kills it with or without USB legacy support on. The wait on this
> machine is about 1-2 minutes before boot. Just another data point.
Have you tried my patch? Does it help?
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