On Fri 2008-07-11 12:21:31, Andrew Morton wrote: > On Tue, 8 Jul 2008 10:50:51 -0400 Vivek Goyal <vgoyal@xxxxxxxxxx> wrote: > > > On Mon, Jul 07, 2008 at 11:25:22AM +0800, Huang Ying wrote: > > > This patch provides an enhancement to kexec/kdump. It implements > > > the following features: > > > > > > - Backup/restore memory used by the original kernel before/after > > > kexec. > > > > > > - Save/restore CPU state before/after kexec. > > > > > > > Hi Huang, > > > > In general this patch set looks good enough to live in -mm and > > get some testing going. > > > > To me, adding capability to return back to original kernel looks > > like a logical extension to kexec functionality. > > Exciting ;) It's much less code than I expected. > > I don't think I understand the feature any more. Once upon a time we > thought that this might become a new and better (or at least > better-code-sharing) way of doing suspend-to-disk. How far are we from > that? Well, it will be tricky to get kjump-hibernation right with respect to ACPI, but we should be fairly close to basic hibernation working with this. It has major advantage of not needing refrigerator (and few disadvantages -- like doing aditional boot during suspend). But main reason I'd like kjump to be in is different -- it should be useful to stuff like "dump but continue running", etc... Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
