Subject: Re: sa-110-4958 kernel problems
To: None <r.black@ic.ac.uk>
From: Rainer Schubert <NetBSD@dl6hbo.gag.de>
List: port-arm32
Date: 03/21/1997 19:03:03
In message <9703192142.ZM28481@picasso.me.ic.ac.uk> of Wed, 19 Mar 1997 21:42:44 +0000
r.black@ic.ac.uk ("Robert Black") wrote:
Hi "Robert Black",
> Yup. Mark has found the problem and fixed it. I don't know whether it has made
> it back into the released kernels yet - try the compiled snapshot kernels. This
> is actually RiscOS crashing because RiscBSD didn't leave the machine in quite
> the state it expected.
Well, on last Weekend I could not find the new stuff on ftp.ph.kcl.ac.uk
/pub/RiscBSD.
> Have you installed the patch sets? From time to time the size of the proc
> structure changes. Your current kernel doesn't match your version of ps (or it
> doesn't match the version of the kernel installed as /netbsd).
The kernels loaded and installed as /netbsd are identical. And No, no patches
installed. Maybe I should try after my Easter holydays.
>
> > 3rd netstat sometimes crashes with a read error.
>
> Same problem as 2.
Agreed.
>
> Hmm, not seen this one. I'll see if I can reproduce it.
I asked all the UNIX Gurus around here (There are lots of them on our local
Packet Radio network, but none with RiscBSD) for a correct setup of /etc/printcap
and mine now seems OK.
But I think the real problem is that the kernels do not recognize my printer(s)
being online while booting.
>
> This is due to the asymmetry between disk reading and writing and its affect on
> interrupt latency.
I can't persuade myself to like this fact, but think you are right. :-)
>
> > With FreeNet on my Risc PC as the receiving ftp client things work better
> > in both directions.
>
> You would expect this because RiscOS does not have the overheads of preemptive
> multitasking (which increases the interrupt latency by a huge amount).
Yep. I did not think of that, sorry. And the transmission speed from my old A410/1
depends very much on how much other traffic there is on the Packet Radio network.
> Cheers
>
> Rob
>
Cheers and beers,
Rainer
--
Rainer Schubert internet: schubert@dl6hbo.gag.de
ampr.org net: dl6hbo@db0hht.ampr.org
German Archimedes Group info: info@gag.de
... Some men are wise - some are otherwise.