Re: pv guests die after failed migration

[Ian Campbell <Ian.Campbell@citrix.com>]

On Sat, 2011-10-15 at 11:35 +0100, Andreas Olsowski wrote:
> On 10/15/2011 07:44 AM, Ian Campbell wrote:
> > On Sat, 2011-10-15 at 02:18 +0100, Andreas Olsowski wrote:
> >> It seems this still has not made it into 4.1-testing.
> >
> > I'm afraid I've not had time to "figure out how to automatically select
> > which guests are capable of a cooperative resume and which are not." so
> > it hasn't been fixed in xen-unstable either AFAIK.
> >
> Wouldnt just assuming all of them do fix a bigger percentage of systems 
> than leaving it the way it is?

I don't know -- that's really the point.

> > I'm also still interested in confirmation to the question I asked in the
> > mail you just replied to.
> >
> 
> Oh, i thought i allready did.
> 
>  > Are you saying that you don't see the "failed for domain %u" message
>  > immediately after the xc_domain_resume call?
>  >
>  > +    if (xc_domain_resume(ctx->xch, domid, 1)) {
>  >            LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR,
>  >                            "xc_domain_resume failed for domain %u",
>  >                            domid);
>  >
>  > That would be pretty odd...
> 
> Yes that is what i am saying:

Oh wait, that's right -- as far as the toolstack is concerned the resume
was successful -- the subsequent crash is within the guest.

Ian.

> 
> root@memoryana:/var/log/xen# cat xl-testmig.log
> Waiting for domain testmig (domid 2) to die [pid 13349]
> Domain 2 is dead
> Done. Exiting now
>