[fedora-virt] f20 guest on centos5 xen host

[Pasi Kärkkäinen]

On Fri, Jan 24, 2014 at 08:51:46AM +0000, Bruno Postle wrote:
> On Wed 22-Jan-2014 at 22:35 +0000, Bruno Postle wrote:
> >On Tue 21-Jan-2014 at 21:57 +0000, Bruno Postle wrote:
> >>
> >>Though it now fails to come back up after yum update and reboot:
> >>
> >>[2014-01-21 21:42:50 xend.XendDomainInfo 3625] WARNING (XendDomainInfo:1262) Domain has crashed: name=honk id=28.
> >>[2014-01-21 21:42:50 xend.XendDomainInfo 3625] ERROR (XendDomainInfo:2864) VM honk restarting too fast (Elapsed time: 1.151586 seconds). Refusing to restart to avoid loops.
> >
> >I have some more info on this second problem, the first problem is
> >clearly the same as described in this patch/workaround: http://xenbits.xenproject.org/gitweb/?p=xen.git;a=commit;h=d513814db6af2b298b8776d7ffc5fb1261e176f4
> >
> >Now the system will come back up on reboot, but not if I upgrade
> >the kernel on the guest (I can upgrade everything else).
> >
> >Any ideas? it is either that there is some new incompatibility
> >between kernel 3.11.10 and 3.12.8 on f20, or pygrub on centos5
> >can't cope with two kernel entries.
> 
> Further info, I did the obvious test here: I installed this new f20
> kernel and removed the old f20 kernel entry from the grub.cfg file.
> The guest crashes, so I suppose the f20 3.12.8 kernel is
> incompatible with centos5 xen.
> 

Can you please paste the full domU kernel verbose debug output,
so we can see what goes wrong? 

-- Pasi