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Hello,

On Sep 5, 2007, at 08:29, John D. Baker wrote:

> I was finally able to build GENERIC, a custom kernel, distribution and
> sets from the ppcoea-renovation branch.  ('release' fails trying to 
> build
> GENERIC.MP.  I don't have the error handy.)

SMP is broken from earlier merges anyway. The branch covers only 
src/sys/arch/* so there's no ( or very little ) change in userland.

> Trying to netboot it on a Powermac G4 (Digital Audio) 466MHz machine
> produces lots of messages like:
>
> wdc0:0:0: lost interrupt
>          type: ata tc_bcount: 16384 tc_skip: 0
> wdc0:0:0: intr with DRQ (st=0x58)
> wd0c: device timeout reading fsbn 1 of 1-32 (wd0 bn 1; cn 0 tn 0 sn 
> 1), retrying
>
> (I think that's in order.  The first iterations have scrolled off the
> screen.)
...
> gem0: device timeout

That looks indeed like interrupts aren't working right.

> Anyone else still playing with ppcoea-renovation, or what's going on
> with that?  I recall reading about preparations for merge-back, but
> nothing since then.

Well, it works fine on all my machines including an iBook G4 which 
should use the same kind of interrupt controller.

So,
- - how old are your sources?
- - what does your kernel config look like?
- - any chance to attach a serial console and catch kernel output?
- - please mail me your ofctl -p output, maybe there's some weirdness in 
the device tree we need to deal with.

have fun
Michael
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