On Mon, 14 Jun 2010, Kenji Kaneshige wrote: > - Architectural limit of physical address in x86 32-bit mode is 40-bit > (depnds on processor version). According to documentation I happen to have handy this limit is actually 52 bits (and space is currently available in the data structures used for a possible future extension up to 63 bits). Maciej -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html