Re: Cannot start xend: ERROR Internal error: Could not lock memory for Xen hypercall (35 = Resource temporarily unavailabl)

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Wed, Jun 03, 2009 at 09:09:52AM +0200, Stephane Bortzmeyer wrote:
> On Tue, Jun 02, 2009 at 03:54:25PM +0200,
>  Manuel Bouyer <bouyer%antioche.eu.org@localhost> wrote 
>  a message of 36 lines which said:
> 
> > How much RAM did you give to your dom0 ?
> 
> dmesg reports:
> 
> total memory = 65536 KB
> avail memory = 52876 KB
> 
> which is consistent with what I gave to grub:
> 
>   kernel (hd0,a)/xen.gz dom0_mem=65536
> 
> I know it is not much but this is an old machine and a Debian/Linux
> dom0 works fine with that.

I think you're hitting the system limit of wired page. UVM only allows 1/3
of the pages to be wired in memory. As other processes also use
wired memory (e.g. ntpd) you may hit this limit here. I guess linux
is more permissive in this area.

-- 
Manuel Bouyer, LIP6, Universite Paris VI.           
Manuel.Bouyer%lip6.fr@localhost
     NetBSD: 26 ans d'experience feront toujours la difference
--