On 11/13/2013 02:41 PM, Vivek Goyal wrote: > > Hi Peter, > > I noticed we seem to be trimming away partial pages in memblock. > > memblock_x86_fill() { > /* throw away partial pages */ > memblock_trim_memory(PAGE_SIZE); > } > > But not in e820 hence they show up in /proc/iomem. > Why does /proc/iomem matter? > How about something along the lines as below patch. This fixes my > /proc/vmcore mmap() issue. I'm not sure if what you're seeing is something that is better handled in userspace. -hpa