Re: console issue since 3.6, console=ttyS1 hangs

[Nathan Zimmer]

On 11/05/2016 06:44 PM, Maciej W. Rozycki wrote:
> On Fri, 4 Nov 2016, Peter Hurley wrote:
>
> > > These bios screens do not have any mention of PNP settings.
> > > I am getting output over the console (via ipmi) until the boot hangs.
> > Yeah, probably the device actually decodes io address access anyway,
> > but in the disabled state probably has not routed IRQ.
> >
> > I have no idea how to help you with the bios, sorry.
>   I'd look out for serial port, Super-I/O or COM1 port (which is how PC-DOS
> named the device some 35 years ago) settings rather than anything to do
> with PNP.  Typically you'd be able to choose from a few classic combined
> I/O space address and IRQ assignments in addition to a `Disabled' setting.
>
>   There might be a genuine BIOS bug there as well of course as serial ports
> seem to be less used these days and the issue may have escaped validation.
>
>    Maciej

After getting back to this after some other hot issues came up I am sure 
there is a bios bug, comparing acpidump of this box to other boxes 
really makes it obvious.

I found pnpacpi=off allows me to boot fine and get console traffic.
However I was hoping to find something that cast a little narrower net.


Nate