amd64/125943: Serial Consoles do not work on amd64 freebsd

[Kris Kennaway]

Peter Jeremy wrote:
> On 2008-Jul-25 09:58:49 -0700, "Marvin Malkowski Jr." <marv at linuxgames.com> wrote:
> [dmesg & init output trimmed]
>> FreeBSD/amd64 (bigconvoy.telefragged.com) (ttyd0)
>>
>> login:
> 
> OK, this is somewhat different to what I expected.  The output you are
> receiving means that the kernel has recognised and is using a serial
> console.
> 
>> I cannot enter any input at this point
> 
> This implies that the console input path is not working,
> 
>> and If I login again to the console I get nothing also.
> 
> Can you explain what you mean here.  You just said you can't enter any
> input to the console so how are you logging in?
> 
> If you switch back to graphical console but leave getty enabled on ttyd0,
> can you then login via the serial port?
> 
>> sio0: configured irq 4 not in bitmap of probed irqs 0
>> sio0: port may not be enabled
>> sio0: configured irq 4 not in bitmap of probed irqs 0
>> sio0: port may not be enabled
> 
> This is definitely not correct and is likely to be the associated with
> the problem.  I don't understand why the SIO ports are probed twice.
> 
> Would it be possible to get verbose dmesg from both i386 and amd64
> boots?
> 

Does booting with ACPI disabled behave differently?

Kris