Kevin,
I subscribe to the redhat.seawolf newsgroup and the only pcmcia problems
reported seem to be concerned with changes to the /etc/sysconfig/pcmcia
file. Hope this is some small help. 
Art Wagner


Kevin Brown wrote:
> 
> I'm trying, I swear, but everytime I think I'm figuring out something it gets
> changed and breaks... (either by me or someone else)
> 
> I upgraded my laptop today with RH7.1 from 6.2.  I did the upgrade by wiping out
> the partitions and rebuilding.  I wiped them out because I needed to reorg the
> partitions to add more swap space since I upgraded my laptop from 32MB to 80MB
> RAM in my poor little P150.
> 
> After doing a custom install and booting for the first time I saw an error
> regarding unable to give IRQs for my four pcmcia slots and the suggestion of
> adding pci=biospci to the boot parameters.  So, I added append="pci=biospci" to
> the lilo.conf file, ran lilo and rebooted.  The system came up without that
> error, but still won't recognize any cards being inserted into the slots.  These
> cards were recognized by RH6.2 with the 2.2.14 and 2.2.16 kernels (and the
> accompanying pcmcia packages).  I did a search for the error on both google and
> altavista and the responses were less than helpful.  One suggested having the
> bios give the video card an IRQ, but I can't in my BIOS.  Most of the other hits
> were only questions asking about this same error, but no solutions seemed to be
> in the archives for those mailing lists.  A few talked about this problem
> showing up when the kernel went from 2.4test to 2.4.0 (I'm currently running
> 2.4.2 that comes with RH7.1)
> 
> The start of the error is:
>         PCI: No IRQ known for interrupt pin
> 
> The two cards I tried in it were:
>         Xircom PS-CE2-10 (standard pcmcia) and
>         Intel EEPro/100 Mobile Adapter (Cardbus)
> 
> I'm hoping others who have been using the 2.4.x kernels have seen this error and
> might have a possible solution, or pointers for more information.
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