Hi, On Thu, Aug 30, 2018 at 02:45:26PM +0200, Thomas Gleixner wrote: > On Mon, 27 Aug 2018, Gu Zhimin wrote: > > > > Fix this problem by changing pfn limit from max_low_pfn to max_pfn. > > This issue should also exist on 64bits systems, if there are reserved > > regions above 4GB. > > Should? Can we please have facts and not some half baken assumptions? > > On 64bit max_low_pfn is the same as max_pfn. See init_mem_mapping(). > Thanks for pointing this out, we've overlooked the reassignment of max_low_pfn, but just take a glance within setup_arch(). Best, Yu
> Thanks, > > tglx
