Re: [Xen-devel] out-of-memory problem when restoringballooneddomains

["Mark A. Williamson" <mark.williamson@xxxxxxxxxxxx>]

> xc_linux_restore start
> Could not create domain. pfns=460800, 1843200KB
> Could not create domain. pfns=460800, 1843200KB
> 4526 [INF] XFRD> Xfr service err=1

Ahhhhhh, that explains it.

tools/libxc/xc_linux_restore.c::xc_linux_restore()

restores a domain by first reserving its peak reservation, then loading the 
memory image, then returning previously ballooned pages to Xen.  You don't 
have enough memory to satisfy the peak, so it won't restore :-(

The restore code will need working to handle this case (I'm afraid I don't 
have the spare cycles to do so myself).

Cheers,
Mark

>
>
> I've attached the log which is from a fresh reboot
> where I did
>
> # xm restore t1.saved
> # xm restore t2.saved
> # xm restore t3.saved
> Error: 1
>
>
>
> /Lars
>
> On Thu, 2005-03-10 at 23:07 +0000, Ian Pratt wrote:
> > > No, unfortunately that didn't help.  (I was already running
> > > 2.0-testing from this morning PST, so I guess I already had most
> > > (all?) of the patches, but I guess it was worth a try...)
> > >
> > > Perhaps it is not related to memory... When I try
> > > to restore only t1 and t3, they also fail with 'Error: 1'
> >
> > The main thing to look at is /var/log/xfrd.log
> >
> > Ian
> >
> >
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