On 05/19/2010 03:58 PM, Mathieu Rondonneau wrote: > Thanks for the feedback. > > No, I don' t see any changes in the /proc/iomem. > > I am trying to prevent a ioremap of a 4K size on a non aligned 4K > address that is below the ISA_START_ADDRESS. > > The problem generates a oops about overlapping. > I have a fix which instruct to not to do any re-map if the section > name is "reserved". > Which is not really clean. > I am looking for a clean way to tell the ioremap function to not remap > bios reserved memory. > That' s why I thought the e820 would be a good start. > > I will continue looking into this. It does not crash the systems. A > warning generates the oops. > Why are you mapping a fixed-address in ISA space to begin with? Requests to a fixed address (as opposed to dynamic allocation) have to be granted even in reserved space -- after all, that's what the address might be reserved for! -hpa -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
