On Wed, 5 Aug 1998, John Ackermann N8UR wrote:
> First, I did get the scc driver problem solved. Note to myself for the
> future: the "SIOCSCCINI : : Invalid argument" message from sccinit was
> the result of an address conflict with my ne2000 ethernet card. I
> think I have the scc driver working now, so that's one problem down.
>
> But I'm seeing another problem tonight. The machine that is using the
> DRSI card for 1200 baud is also using an Ottawa PI card for the 19.2kb
> port. I've run PI cards under NOS and Linux for years with good luck,
> but tonight I'm seeing something completely new. With the PI card
> installed now (I had it out when I was working on the DRSI card
> problems), I'm getting random lockups -- so bad that the video goes
> blank and the keyboard lights are dead; all you can do is a hardware
> reset. I don't think I've *ever* seen Linux fall over this hard, and I
> know I've never seen the PI card do anything like this. There's no log
> message to indicate what went wrong, but it appears that the problem
> may be tied to when the PI card transmits -- though it will transmit a
> number of packets before this happens.
>
> The configuration for the PI card is one that I've used in the past
> without problems. The card works just fine until after some packets
> have been sent, and then the lockup occurs. The DRSI card and the PI
> card don't have any overlap in IO ports or IRQs. Both boards are
> detected properly at boot time, and both seem to work for at least a
> few minutes. This problem did not occur when only the DRSI card was in
> the machine; it started after I reinstalled the PI card.
>
> For what it's worth, I'm running kernel 2.0.34, modules-14f, and utils
> 2.1.42a.
>
> I'm about to start trying to swap things around to see if I can isolate
> the problem, but I wonder (a) if anyone has seen this behaviour and has
> any clues; and (b) if there's any known incompatibility between running
> the scc driver and the pi driver in the same system.
>
> Thanks for any help,
>
> John N8UR
> mttdgl@gninternet.com
>
>
>
Best wishes
- Karl F. Larsen, 3310 East Street, Las Cruces,NM (505) 524-3303 -