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From: ron minnich <rminnich@gma...>
Subject: plan9 won't install on my system
Date: Fri, 23 Jan 2009 08:25:29 -0800

On Fri, Jan 23, 2009 at 1:49 AM, elot <samtholi40@gma...> wrote:
> hey,i have an intel core 2 duo CPU E7300 with an ASUS motherboard and
> an nvidia 8500GT/PCI/SSE2 graphic card.i tried to install plan9 but it
> stops at a part that says irq 3 routing and wont even bring up the
> boot options.i looked at the list of supported hardware and i've been
> on the freenodes but no luck.what could be wrong?


It would be useful to see your full output. This could be a bad IRQ
routing table, coupled with the BIOS messing up IRQ setup in a way
that Windows or Linux might fix but Plan 9 can not.

At this point, on SMP machines, there are three tables that could be
used to provide routing for IRQs:
- $PIR (frequently wrong, not usually used if _MP_ is found)
- _MP_ mostly right but ...
- ACPI  usually right (but not always!)

Plan 9 does not parse acpi yet. This is going to hurt us more and more
because in many case, motherboard manufacturers do a very poor job of
setting up the other two tables. We've seen cases where the $PIR table
was just copied from one board to a totally different board with no
changes.

If somebody wants a project ACPI is out there waiting. Warning: ACPI
will make your eyes bleed; it's that bad unless you think FOUR CHAR
NAME _ARE GOOD _FOR ALL_ USES (well that's the least worst part of
it).

Can you get some serial output for us to see?

ron