> It turns out this is due to the new PnPBIOS kernel config option:
> 
> [asuardi@dolphin asuardi]$ grep PnPBIOS /proc/ioports 
> 03f0-03f1 : PnPBIOS PNP0c01
> 0600-067f : PnPBIOS PNP0c01
> 0680-06ff : PnPBIOS PNP0c01
>   0800-083f : PnPBIOS PNP0c01
>   0840-084f : PnPBIOS PNP0c01
> 0880-088f : PnPBIOS PNP0c01
> f400-f4fe : PnPBIOS PNP0c01
> 
> But since modular floppy was working before without setting any
>  ioport parameter I'm not entirely sure this is a "feature".

Its a mix of fp and pnpbios things that need untangling. PnPBIOS should
register the resource as not in use, floppy should allocate the right
things not blindly reserve the wrong sized chunks
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