Re: [Xen-users] Windows 2008 SBS suddenly disappearing on Xen 4.0.0

[Bart Coninckx <bart.coninckx@xxxxxxxxxx>]

On Thursday 04 November 2010 11:33:12 Bart Coninckx wrote:
> On Tuesday 02 November 2010 22:06:26 Peter Braun wrote:
> > Hi all,
> > 
> > i was using 2008 SBS without problem on Xen 4.0.1 before migrating to
> > Xenserver 5.6.
> > 
> > I agree with James - try to upgrade to 4.0.1 - a lot of hotfixes has
> > been included in that release.
> > 
> > 
> > Peter
> > 
> > 2010/11/2 James Harper <james.harper@xxxxxxxxxxxxxxxx>:
> > >> Hi all,
> > >> 
> > >> when running Windows 2008 SBS on Xen 4.0.0, it disappears after some
> > >> time (longest time I had it running was 20 minutes). In
> > >> /var/log/xen/qemu-dm- win1.log I find:
> > >> 
> > >> xc_map_foreign_batch: mmap failed: Cannot allocate memory
> > >> xc_map_foreign_bulk error 12
> > >> 
> > >> 
> > >> Anyone any idea how to troubleshoot this? The Hypervisor has 16 GB of
> > >> RAM, currently 2 GB are allocated to Dom0. This specific DomU has 8
> > >> GB.
> > > 
> > > Is upgrading to 4.0.1 a possibility?
> > > 
> > > James
> > > 
> > > _______________________________________________
> > > Xen-users mailing list
> > > Xen-users@xxxxxxxxxxxxxxxxxxx
> > > http://lists.xensource.com/xen-users
> 
> Hi all,
> 
> I just disabled ballooning (Google results suggested this) and this still
> occurs. I'm on Opensuse 11.3, upgrading will need to happen outside of the
> distro packages since 4.0.0 is the highest available. I consider switching
> back to Opensuse 11.2 which carries 3.4. I had problems installing Windows
> SBS 2008 on that before though, but since someone confirmed having done
> that, maybe I should look into troubleshooting that first.
> 
> thx,
> 
> B.
> 
> 
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users


I think I found the culprit: I'm using Dell R610 servers with H200 
controllers. These seem ridiculously slow: 20 MB/sec while writing. This is 
probably way too slow for Xen and this makes the install reboot while 
expanding files. 
Hopefully Dell support can help with that, but Googling for this kind of 
problem reveils that this is typical for this card which can be deemed as 
plain old crap.

thx,

B.

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