I am trying Knoppmyth 5A16 on a Veriton 5100 (Intel 815e chipset, integrated everything)

Are there any settings in Knoppmyth which effect device IRQ assignments?
The reason I ask is that I am having a lot of trouble with networking.
Using netcardconfig works without errors however I can not connect to other computers - "destination host unreachable"

I have removed all pci cards to make troubleshooting easier.
I then booted Knoppix 3.3 (which uses a 2.4 kernel) and networking works flawlessly. Both distributions loaded the same driver e100 although I am not sure of driver versions.

The main difference I have noticed between distributions is that according to lspci, in Knoppmyth the lan card is assigned IRQ 9, which is shared, however in Knoppix the lan card is assigned IRQ 5. I am hoping to change the config in Knoppmyth to assign IRQ 5.

The BIOS has no settings whatsoever for APIC.

I have tried modifying lilo in Knoppmyth to add kernel options "lapic" and "pci=routeirq" (as suggested by dmesg) but neither effects the IRQ assignments.

Is there anything else to try or other info that would be useful to troubleshoot this with?

thanks for reading this

I also tried R5A15 with the same result.
However I downloaded and tried R4V5 and eth0 now works with the lan card given an irq of 5.

I should point out the reason I am guessing it is an IRQ issue is because USB and sound are also not working properly on R5A16 but do on knoppix 3.3 at least.

Have you tried assigning IRQs in your BIOS?

_________________
cesman

When the source is open, the possibilities are endless!

>Have you tried assigning IRQs in your BIOS?

Unfortunately there are no options to change any IRQ's except for the serial ports (...but might as well try changing them anyway).

thanks for the suggestion

> serial ports (...but might as well try changing them anyway).

made no difference.
In bios there is also an option to disable IRQ sharing but this made no difference either, linux seems to ignore it (as it does for turning on or off PNP aware OS)

Have you turned off al the extraneous or unused hardware like the parallel port, ... in the BIOS? This will free of IRQs that would otherwise be wasted...

Hi,
Sorry, don't mean to jump in but you said netcardconfig worked ok? and then to quote (Using netcardconfig works without errors however I can not connect to other computers - "destination host unreachable" )

If you do netcardconfig from a terminal, how are you doing it? DHCP or Manual?

What type of connection are you trying to obtain, ftp, ping, telnet? Which way, from your new KnoppMyth box or to it?

Not trying to be picky, however I have had Knoppmyth run on just about anything that will boot a cd, and the network has always worked, audio, tv out, those are a different story:) As a point, I just loaded R5A16 on a Compaq Pro 266mhz,128,154gig hd something with an es1869 audio, works great but don't put your pvr card into it as the pci bus will try to cook it.

Thanks
Mike

>Have you turned off al the extraneous or unused hardware like the parallel port, ... in the BIOS? This will free of IRQs that would otherwise be wasted

Disabled all serial, parallel and usb ports and audio for the time being, but has made no difference. Removed nvidea agp video card (which was assigned irq 9) and reverted to onboard vga (which gets assigned irq 9 same as lan), but lan still does not want to work. In Knoppix vga and lan get different irq's.

Am running netcardconfig as root, manual ip address, pinging computer directly connected with crossover cable (works exactly this way in knoppix 3.3)

It may not be an IRQ issue but I can't guess what else it is.
The only error in dmesg relating to networking is "no ipv6 routers present", but I figured this is not relevent anyway.

Is it worth attaching the rest of dmesg output?

Have you tried booting with "noapic noioapic"? This often prevents IRQ related issues by forcing the old style IRQ handling and shuffling stuff around. It's nasty, but better than a non-working system.

> Have you tried booting with "noapic noioapic"?

Just tried it but unfortunately didn't make a difference.

The problem is I can't manually assign interrupts to the onboard devices.
I found a hidden bios menu which actually allows me to assign interrupts to PCI 1,2 and 3, however the onboard vga (or agp slot) and onboard lan both get assigned the same interrupt as PCI 1.

Solved.....I think.

eth0 now works.
It was an IRQ problem.

I needed to boot with kernel option "noacpi". (I should have attached dmesg)
It is the acpi in the new kernel that is not working for me.
IRQ for lan is now 11 and for vga is 9.
Now to enable all devices again and see if it still works.

thanks for all your suggestions.