Hello Don, I'm missing your mail somehow so replying Oomichi-san's mail... From: "Ken'ichi Ohmichi" <oomichi@xxxxxxxxxxxxxxxxx> Subject: Re: makedumpfile memory usage grows with system memory size Date: Thu, 29 Mar 2012 17:09:18 +0900 > > On Wed, 28 Mar 2012 17:22:04 -0400 > Don Zickus <dzickus at redhat.com> wrote: >> I was curious if that was true and if it was, would it be possible to only >> process memory in chunks instead of all at once. >> >> The idea is that a machine with 4Gigs of memory should consume the same >> the amount of kdump runtime memory as a 1TB memory system. >> >> Just trying to research ways to keep the memory requirements consistent >> across all memory ranges. I think this is possible in constant memory space by creating bitmaps and writing pages in a certain amount of memory. That is, if choosing 4GB, do [0, 4GB) space processing, [4GB, 8GB) space processing, [8GB, 12GB) ... in order. The key is to restrict the target memory range of filtering. Thanks. HATAYAMA, Daisuke
