Re: Christmas list for the kernel

Vojtech Pavlik
2005-11-23T16:23:40Z

On Wed, Nov 23, 2005 at 04:16:37PM +0000, Russell King wrote:
> On Wed, Nov 23, 2005 at 05:02:33PM +0100, Marc Koschewski wrote:
> > Mine looks like this.
> >
> > * Why is the seconf line for ttyS1 missing (as you have one above)?
>
> Probably because whatever-added-ttyS0 didn't add ttyS1 as well. As
> I've said, due to the complex initialisation of serial (and the fact
> I don't see this) I can't provide a more useful answer.
>
> At a guess, the "whatever-added-ttyS0" could be ACPI. ACPI doesn't
> have the notion of devices, so any ACPI ports would appear as legacy
> devices. Hence, ttyS0 may have been provided by both the legacy table
> and maybe ACPI, whereas ttyS1 seems to only be provided by the legacy
> table.
>
> Maybe that indicates your ACPI is buggy. I don't know. I know nothing
> about ACPI.
>
> > * What does these 'too much work' messages mean? Must have been come
> > in lately...
>
> It means that we spun in the serial interrupt for more than 256 times
> and reached the limit on the amount of work we were prepared to do.
> Any idea what you were doing when these happened?

Because ACPI was right and the second serial port isn't there?

--
Vojtech Pavlik
SuSE Labs, SuSE CR