Re: [Xen-devel] Domain save/migrate issue

[Jacob Gorm Hansen <jacobg@xxxxxxx>]

On 2/14/06, Noam Taich <noam.taich@xxxxxxxxxxxx> wrote:

> This would allow the aforementioned domain save option to be LIVE also, and
> without wasting too much space,
>
> Which would enable live local checkpointing.

hi,

with my self-migration patch, I already have this functionality. In
the domain, I open a block device with O_DIRECT, and then a user-space
process take care of the live checkpointing to disk. A small
bootloader is prepended to the checkpoint, so that is can revive
itself.

You can see the source of such a user-space process here:
http://www.distlab.dk/hg/index.cgi/xen-gfx.hg?cmd=file;filenode=bed84d57fa6fe224eede24cd5ace69df4234a8b1;file=tools/migrate/minimig.c

Jacob

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel