On 11/06/2013 04:26 AM, Vivek Goyal wrote: > On Tue, Nov 05, 2013 at 09:45:32PM +0800, Jingbai Ma wrote: >> This patch set intend to exclude unnecessary hugepages from vmcore dump file. >> >> This patch requires the kernel patch to export necessary data structures into >> vmcore: "kexec: export hugepage data structure into vmcoreinfo" >> http://lists.infradead.org/pipermail/kexec/2013-November/009997.html >> >> This patch introduce two new dump levels 32 and 64 to exclude all unused and >> active hugepages. The level to exclude all unnecessary pages will be 127 now. > > Interesting. Why hugepages should be treated any differentely than normal > pages? > > If user asked to filter out free page, then it should be filtered and > it should not matter whether it is a huge page or not? Yes, free hugepages should be filtered out with other free pages. It sounds reasonable. But for active hugepages, I would offer user more choices/flexibility. (maybe bad). I'm OK to filter active hugepages with other user data page. Any other comments? > > Thanks > Vivek -- Thanks, Jingbai Ma
