Re: [Xen-devel] 2.6.32.16: hvm domU boot - oops at add_pin_to_irq_node_nopanic

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

On Fri, 9 Jul 2010, Bruce Edge wrote:
> 2010/7/9 Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
> On Fri, 9 Jul 2010, Łukasz Oleś wrote:
> > W dniu 9 lipca 2010 11:42 użytkownik Łukasz Oleś <lukaszoles@xxxxxxxxx> 
> > napisał:
> > > 2010/7/8 Łukasz Oleś <lukaszoles@xxxxxxxxx>:
> > >> On Thursday 08 July 2010 17:39:49 Bruce Edge wrote:
> > >>> This is the same problem as this post:
> > >>> http://lists.xensource.com/archives/html/xen-devel/2010-06/msg01114.html
> > >>>
> > >>> Stefano suggested I retry after Jeremy's pull.
> > >>>
> > >>> Sync'd with 2.6.32.16 last night and it looks like the identical 
> > >>> problem.
> > >>>
> > >>> I can boot Ubuntu 10.04 with it's own native kernel, but not with a 
> > >>> pv-ops
> > >>> kernel.
> > >>
> > >> I have identical problem and tried with and without 
> > >> CONFIG_XEN_PLATFORM_PCI
> > >> option.
> > >>
> > >> I'll test xen/next-2.6.32 and see if it helps.
> > >>
> > >
> > > I tried xen/next-2.6.32 and there is no call trace but now it just hangs.
> > > I'm running this kernel as HVM domU, but it has enabled options for
> > > dom0. Should this work?
> > >
> > > Attached kernel config file and logs from xen/stable-2.6.32 
> > > xen/next-2.6.32
> > >
> >
> > Sending also output from xm log
> >
> > This line: "(XEN) hvm.c:3115:d15 Bad HVM op 9."  appears when starting
> > domU with kernel from  xen/next-2.6.32
> 
> That line means that you are running on a Xen version that doesn't have
> HVMOP_pagetable_dying, like xen 4.0 testing for example. It shouldn't
> caouse any trouble per se.
> If you are running on xen 4.0, could you please apply to the hypervisor
> the patch I attached to this email and try one more time?
> 
> Is this patch required for xen-testing 4.0.1rc3 ?
> 
 
no it is not required, but it is going to improve PV on HVM performances
and it is known to solve some locking issues.

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