Re: [Xen-devel] OSSTest nested patch PART2 -- L2 installation failure

["Hu, Robert" <robert.hu@xxxxxxxxx>]

> -----Original Message-----
> From: Hu, Robert
> Sent: Wednesday, October 28, 2015 10:57 AM
> To: 'Ian Jackson' <Ian.Jackson@xxxxxxxxxxxxx>
> Cc: 'Ian Campbell' <ian.campbell@xxxxxxxxxx>; xen-devel@xxxxxxxxxxxxx
> Subject: RE: OSSTest nested patch PART2 -- L2 installation failure
> 
> > -----Original Message-----
> > From: Ian Jackson [mailto:Ian.Jackson@xxxxxxxxxxxxx]
> > Sent: Tuesday, October 27, 2015 8:10 PM
> > To: Hu, Robert <robert.hu@xxxxxxxxx>
> > Cc: 'Ian Campbell' <ian.campbell@xxxxxxxxxx>; xen-devel@xxxxxxxxxxxxx
> > Subject: Re: OSSTest nested patch PART2 -- L2 installation failure
> >
> > Hu, Robert writes ("OSSTest nested patch PART2 -- L2 installation failure"):
> > > Now I get to L2 installation.
> > >
> > ...
> > > L1 as host seems not having ether-prefix base defined.
> > ...
> > > L1 as host seems not have dhcp watch method defined
> >
> > I suggest replacing the calls to get_host_property with
> > get_target_property.  That looks outwards through the levels of
> > nesting (via the $ho->{Host} field) looking for the property in
> > question.  This is what I intended the target property machinery for.
> [Hu, Robert]
> 
> Yeah, I had recalled this later yesterday, and tested.
> 
> Now another issue: after attach lvm to L1, cannot see it inside.
> vgdisplay shows nothing.
> 
> My manual test like this:
> xl block-attach 13 /dev/osstest-host2/test_l2,raw,sdc,rw
> 
> xl block-list can see it, while inside L1 cannot.
> Any hints?
[Hu, Robert] 

Tried:
After attach, in L1 cannot see the additional disk, if L1 is nested Xen. After 
reboot, can see it.
If L1 is booted as normal guest, it can see the additional disk at once, after 
attachment.

Lucky that our test step is attach then reboot, so we will not encounter this 
in our test, unless
in debugging where we single step execution.

> >
> > Thanks,
> > Ian.

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