acpi causes missing serial port on HP BL10e

[Kris Kennaway]

John Baldwin wrote:
> On Monday 30 June 2008 12:03:42 pm Kris Kennaway wrote:
>> If I build a kernel with acpi on this HP proliant BL10e blade system, it 
>> doesn't probe sio0:
>>
>> without acpi:
>>
>> sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
>> sio0: type 16550A, console
>> sio0: [FILTER]
>> sio1 at port 0x2f8-0x2ff irq 3 on isa0
>> sio1: type 16550A
>> sio1: [FILTER]
>>
>> with acpi:
>>
>> sio0: <Standard PC COM port> port 0x2f8-0x2ff irq 3 flags 0x10 on acpi0
>> sio0: type 16550A, console
>> sio0: [FILTER]
>>
>> note: the port at 0x3f8 didn't probe.
>>
>> If someone is interested I can provide the acpidump.
> 
> Does the port at 0x3f8 work w/o ACPI?

Yeah, it is supposed to be the primary console.  I (re)discovered this 
problem when I accidentally added acpi back to my previously working kernel.

Kris