[PATCH 0/3] makedumpfile: hugepage filtering for vmcore dump

Vivek Goyal vgoyal at redhat.com
Tue Nov 5 15:26:31 EST 2013

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

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?


More information about the kexec mailing list