Michal,
I had this problem with this motherboard. I fixed it by upgrading to the latest
BIOS, which you can obtain from Tyan's web site. You may need to turn on MTRR
support, as well.
Evan.
On 27-Apr-99 Michal Szymanski wrote:
> Sorry for bothering you again, but I am running into despair.
>
I apologise if I didn't reply to an earlier post.
> The situation is as follows:
>
> Dual 200MHz Pentium Pro machine:
> TYAN S1662-AT-001 board
> 100 Mbit Kingston KNE 100TX ether card with DC21140 chip
>
> Has been running SMP 2.0.35 kernel (RedHat 4.2 Linux) for a few years,
> just great!
>
> Now I am upgrading all machines in our Observatory to RH 5.2, kernel
> 2.2.1, kernel-NFSD (all needed packages upgraded for 2.2.X kernel). All
> single-CPU machines work w/o any problems.
>
> SMP-compiled kernel boots fine, bo there is absolutely NO NETWORK
>
> The card gets detected (both with "tulip" and "de4x5" drivers), the
> interface is set, but no ping, no interrupts, no packets:
>
>>ifconfig eth0
>
> eth0 Link encap:Ethernet HWaddr 00:C0:F0:16:C5:8C
> inet addr:193.0.88.47 Bcast:193.0.88.255 Mask:255.255.255.0
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:0 errors:0 dropped:0 overruns:0 frame:0
> TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0
> Interrupt:10 Base address:0x6000
>
>>cat /proc/interrupts
>
> ...
> 10: 0 0 IO-APIC-edge eth0
> ...
>
>>cat /proc/net/dev
>
> ...
> eth0: all zeroes (or some errors/drops reported)
> ...
>
> I got a few responses to my previous post, advicing other kernels. I tried
> also 2.2.6, 2.1.132, 2.1.125 - with exactly same results.
>
> The same 2.2.1 kernel + KNFSD works fine on this machine running
> non-SMP kernel.
>
> Browsing through documentation and looking at other SMP machines (which
> still run 2.0.35), I started to wonder if this could be a problem
> with IO-APIC interrupts. AFAIK, the older 2.0.X kernels did not use
> it (all IRQs were going to one processor). Is it possible to force
> given IRQ (or all) to be processed in XT-PIC mode?
>
> any hints would be appreciated - it would be really nasty to be glued
> to old versions of OS/kernel with all my dual-CPU machines.
>
> regards, Michal.
>
> --
> Michal Szymanski ([EMAIL PROTECTED])
> Warsaw University Observatory, Warszawa, POLAND
> -
> Linux SMP list: FIRST see FAQ at http://www.irisa.fr/prive/mentre/smp-faq/
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--
Evan Thomas | Department of Physiology
ph: (61-3) 9344-4690 | University of Melbourne
fax: (61-3) 9344-5818 | Parkville Victoria 3052
http://dirac.physiology.unimelb.edu.au/~evan | Australia
-
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