Re: isp(4) annoying problems on PWS500au

[Nicolas Joly <njoly%pasteur.fr@localhost>]

On Mon, Nov 24, 2008 at 03:13:50PM +0100, Nicolas Joly wrote:
> On Mon, Nov 24, 2008 at 01:44:57PM +0100, Urban Boquist wrote:
> > Hi all,
> > 
> > >>>>> Nicolas Joly writes:
> > 
> > Nicolas> waiting for pkc0.7.0.1004.0 to start...
> > Nicolas> waiting for pkc0.7.0.1004.0 to start...
> > Nicolas> waiting for pkc0.7.0.1004.0 to start...
> > Nicolas> waiting for pkc0.7.0.1004.0 to start...
> > 
> > I just tried a 5.0_BETA kernel on my PWS500au and I see this too. I
> > have not seen any disk errors or anything else strange when the
> > machine is running, but as soon as I reboot after having run on the
> > 5.0 kernel it gets stuck in the SRM. Very annoying indeed! ;-)
> > 
> > Nicolas - did you file a PR?
> 
> Not yet. I was wondering if this was a more problem on my
> machine... Thanks for confirming.
> 
> > This machine is still running 4.0_STABLE so I could probably try to
> > boot kernels between 4.0 and 5.0 if that could help nailing down the
> > problem?
> 
> I'll try to pinpoint it, if i time permit.

Got it. This is not really an isp(4) problem, but a pmf(9) side effect
... It appeared with the pmf_system_shutdown introduction in the
following commit:

http://mail-index.netbsd.org/source-changes/2008/02/28/msg002955.html

The main problem, if i understand correctly, is that with
shutdown/halt command all pmf registered hooks are called ... And
especially the one that disable all devices on a pci bus. This stops
the SCSI controller which the PWS500au SRM dislike.

Not sure how this can be fixed, but disabling pmf_system_shutdown make
reboot/halt commands work as expected.

-- 
Nicolas Joly

Biological Software and Databanks.
Institut Pasteur, Paris.