Roland Tollenaar <[EMAIL PROTECTED]> wrote:
> Hi Fabian,
> > 
> > 1) If you have more than one PCI slot, try switching the cards. The IRQ
> lines are on the mainboard and can't be changed. SO switching cards in the
> slots can help.
> This is what I eventually did to solve the problem. I am not really
> happy with the solution because I am afraid that it may not save my skin
> in the future.
> 
> 
> 
> > 
> > 2) In your BIOS there are usually options to fiddle around with IRQ
> resource management. Try those. (except in most laptops) 
> I did but these seem to have no effect. IRQ 10 is what my PC likes and
> no matter what I do in the BIOS IRQ10 is what it assigns to the NICS.
> 
> 
> > 
> > 3) This one worked for me:
> > In most modern Boards/CPUs there is a new Chips for IRQ handling. Back
> in the XT Days there were 16 IRQ lines going into a PIC (programmable
> interrupt controller). These days those PICs are replaced by a so-called APIC
> (advanced...). If you every played around with Multiprocessor setups or
> dualcores you might have heard of that.
> I had read about this and know that it increases the number of IRQlines.
> It would have been my next step but I did not know how to apply it.
> 
> > 
> > Anyway. Compile your kernel to enable APIC and especially APIC-IO
> support.
> > (make menuconfig --> processor type&features --> local APIC for
> uniprocessor --> APIC-IO support)
> Thanks, this is the info I was lacking.
> 
> 
> > I hope you have an APIC chip on your board.
> How can I check before going to the effort of recompiling the kernel?
> 
> Would anyone know why the APIC is not set on as default in the kernel?
> Does it conflict if the board does NOT have an APIC?
> 
> 
> Kind regards,
> 
> Roland.
> 
> 
> 
> 
> 
> > 
> > back to work
> > CU Fabian
> 

I faced the same problem here. Only solution for me was to use a different 
machine, because the one I was trying first had only two PCI slots available 
and I tried to use an ethernet and and cardbus card with Xenomai at the same 
time. The result was that only one worked due to IRQ conflicts, the machine 
freezed when I used both. Now with machine no 2 it works, as long as I disable 
USB controller.

Karl
-- 
von Karl Reichert

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