Hello Ludovic,
* Ludovic Courtès <ludo@chbouib.org>, [2007-07-30 15:55 +0200]:
> Fatal server error:
> xf86MapPciMem: Could not mmap PCI memory [base=0x100000,hostbase=0x100000,size=2000] (Invalid argument)
Sounds similar to #422077...
ciao,
ema