Re: [RFC][PATCH] x86_86 support of checkpoint/restart (Re: Checkpoint / Restart)

["Serge E. Hallyn" <serue-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>]

Quoting Masahiko Takahashi (m-takahashi-kvZsz0w9TrB8UrSeD/g0lQ@public.gmane.org):
> Hi,
> 
> I'm now working on porting to x86_64 with help from Nauman Rafique.
> Here is the preliminary patch. If there is someone who is interested
> in x86_64 support, please join.

Cool.  Looks nice and minimal.  Thanks for doing this.

> This patch is to support x86_64 on Oren's checkpoint/restart patchset
> (v12 on December 29th). His patchset is well implemented, so the x86_64
> patch is only handling architecture specific registers. (Maybe I'm
> missing something important...)
> 
> I've tested this patch with his test suite (self.c and rstr.c) but I'm
> not confident especially in handling segment registers (%fs/%gs).
>
> This patch doesn't support external checkpointing, nor 32bit binary

Heh, and I just realized that my s390 port doesn't do self-checkpoint,
I'd only been doing external.  Oops.

> checkpoint/restart on 64bit Linux.
> 
> I would appreciate any comments and feedback.

-serge