Re: [Xen-devel] What is the current state of Dom0 kernel support?

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Fri, Jul 10, 2009 at 01:24:14AM +0300, Pasi Kärkkäinen wrote:
> On Wed, Jul 08, 2009 at 05:23:36PM -0700, Jeremy Fitzhardinge wrote:
> > On 07/08/09 15:14, Pasi Kärkkäinen wrote:
> > > On Fri, Jun 26, 2009 at 11:29:30AM -0700, Jeremy Fitzhardinge wrote:
> > >   
> > >> On 06/26/09 11:21, Tim Post wrote:
> > >>     
> > >>> Is it possible for you to set up a blog just for this? I think many
> > >>> people are just going to pull your tree, it would be really, really nice
> > >>> to have a feed to pull so we know when to pull and update .. especially
> > >>> when the next merge window closes.
> > >>>
> > >>> As if you didn't have your hands full already :) Perhaps something on
> > >>> xen.org just for kernel development?
> > >>>
> > >>> Sorry if something like this already exists.
> > >>>   
> > >>>       
> > >> No, its a good idea.  I'll sort something out (and poke me if I don't
> > >> appear to do anything in the next few days).
> > >>
> > >>     
> > >
> > > Btw what's the current tree people should be testing? xen-tip/next or
> > > rebase/master? 
> > 
> > rebase/master is what I'm currently working on.  It's work-in-progress,
> > but it works for me at the moment.  I'd appreciate any test results you
> > have.  (I don't yet have a fix in there for your PAE issue however.)
> > 
> 
> I just tried latest rebase/master (2.6.31-rc1) on Xen 3.4.0.
> 
> Seems to crash during dom0 kernel startup:
> http://pasik.reaktio.net/xen/pv_ops-dom0-debug/pv_ops-dom0-log-09-rebase-master-with-highpte.txt
> 
> Checking if this processor honours the WP bit even in supervisor mode...
> BUG: unable to handle kernel NULL pointer dereference at (null)
> IP: [<c058d0e7>] xen_evtchn_do_upcall+0xcc/0x13f
> *pdpt = 000000003d272001 
> Thread overran stack, or stack corrupted
> Oops: 0000 [#1] SMP 
> 
> It's 32bit PAE like usual..
> 
> My previous xen-tip/next 2.6.30-rc6-tip booted ok.
> 

Is there something to test to debug this further? 

-- Pasi

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