Re: [9fans] Intall Report

[David Gordon Hogan <dhog@plan9.bell-labs.com>]

> Initial messages were something to
> do with South Bridge that still does come up
> when boot from floppy.

Once again, that message is just a warning, and Plan 9
should work fine in spite of it.  On most systems, that is:
occaisionally we run into a BIOS that doesn't set up the
PCI interrupts correctly, and we try to compensate.  We
can only compensate if we know about the specific
south bridge, though, and the warning merely means
that we've encountered a `new' south bridge that we
don't support.  It does not necessarily mean that there
is anything wrong with the interrupts as set up by the BIOS!

I'll try to change the message to be less frightening...

BTW, I recently made some changes in this area to
work around a problem with the BIOS on some Sony
VAIOs.  The BIOS for these machines was setting the
IRQ on one of the USB controllers to the wrong value.
We now deal with this as well as the case where the BIOS
leaves the interrupt line register in PCI config space as zero.