On Sun, 26 Sep 1999, Ingo Molnar wrote:
>
>On Fri, 24 Sep 1999, Earle R. Nietzel wrote:
>
>> Looking in the interrupts this looks strange:
>
>> 12: 153 122 IO-APIC-level eth0, PS/2 Mouse
>
>> As you can see the eth0 and PS2 port are sharing the same interrupt.
>> Is this normal?
>
>is there any option in the BIOS setup to switch to 'MP 1.4' mode. (or
>'route PCI interrupts through IOAPIC', or 'OS Type' not set to DOS neither
>Novell). If yes then try to change that option and eth0 should go to some
>'high' interrupt like IRQ16 or IRQ20. (but it could be the case that the
>box has only 16 IOAPIC pins, in that case you should either reconfigure
>PCI IRQ routing (if possible via the BIOS), or move the ethernet card
>physically to another slot.)
The Tyan Tomcat IVD BIOS version 1.02 blows. They disabled the high PCI
IRQs to "fix" some broken (Orchid?) video card under Windows NT.
Downgrade to 1.01 and your IRQs 16-19 will show up. The BIOS v1.02 is fine
for UP but not SMP. The BIOS v1.02 also supposedly fixed a problem with
UDMA drives on the PIIX3 controller but my IBM hard drive doesn't seem to
care and works fine under 1.01:
hdc: IBM-DTTA-371010, 9641MB w/465kB Cache, CHS=19590/16/63, (U)DMA
/sbin/hdparm -c1 -d1 -u1 -X34 -W1 -k1 -K1 -S0 /dev/hd[ac]
I have the 1.01 BIOS on disk. Glad I made the backup when prompted. :)
CPU0 CPU1
0: 3754017 4689804 IO-APIC-edge timer
1: 5588 5650 IO-APIC-edge keyboard
2: 0 0 XT-PIC cascade
3: 164756 164163 IO-APIC-edge serial
4: 18379 18665 IO-APIC-edge serial
5: 246454 230795 IO-APIC-edge soundblaster
8: 1 1 IO-APIC-edge rtc
13: 1 0 XT-PIC fpu
14: 44 68 IO-APIC-edge ide0
15: 85381 82696 IO-APIC-edge ide1
16: 10677 4930 IO-APIC-level eth0
17: 94409 94494 IO-APIC-level bttv
NMI: 0
ERR: 0
-George Greer
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