Hi,

I have compiled a kernel with a new driver that calls pci_mapreg_map().
While booting this kernel, the call to pci_mapreg_map fails, and
everything hangs just after it tells me that the call failed.  Also,
there is no problem with a similar kernel, on the same hardware, which
leads me to think that there's some software setting that I may have
overlooked.  Does anyone have an idea what is causing this problem or
have any suggestions as to what I could try in order to fix it?

thanks,
Carlos