sio problem in -current (COM1)

[Terry Lambert]

"Cagle, John (ISS-Houston)" wrote:
> I'm having a problem with -current on a ProLiant BL10e blade server.  On
> the blade server, we use a serial console on sio0/COM1.  This works
> perfectly with 4.8, but for some reason, the sio driver doesn't see COM1
> at all, and assigns COM2 resources to sio0.  Any pointers to where I
> should look would be greatly appreciated.
> 
> I've attached dmesg output for 4.8 and -current on this blade.

sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A, console
sio1 at port 0x2f8-0x2ff irq 3 on isa0
sio1: type 16550A

Don't these things have a "magic" SMM port on COM1: by default?

Looks like you need to disable the "System Management Port"
option in your BIOS?

-- Terry