Re: Xen4.2-rc3 test result

[Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>]

On Thu, Sep 06, 2012 at 08:18:16AM +0000, Ren, Yongjie wrote:
> > -----Original Message-----
> > From: Konrad Rzeszutek [mailto:ketuzsezr@gmail.com] On Behalf Of
> > Konrad Rzeszutek Wilk
> > Sent: Saturday, September 01, 2012 1:24 AM
> > To: Ren, Yongjie
> > Cc: 'xen-devel'; 'Keir Fraser'; 'Ian Campbell'; 'Jan Beulich'; 'Konrad
> > Rzeszutek Wilk'
> > Subject: Re: [Xen-devel] Xen4.2-rc3 test result
> 
> > > 5. Dom0 cannot be shutdown before PCI detachment from guest and
> > when pci assignment conflicts
> > >   http://bugzilla.xen.org/bugzilla/show_bug.cgi?id=1826
> > 
> > Um, so you are assigning the same VF to two guests. I am surprised that
> > the tools even allowed you to do that. Was 'xm' allowing you to do that?
> > 
> No, 'xl' doesn't allow me to do that. We can't assignment a device to different guests. 
> Sorry, the description of this bug is not accurate. I changed its title to "Dom0 cannot be shut down before PCI device detachment from a guest".
> If a guest (with a PCI device assigned) is running, Dom0 will panic when shutting down.

And does it panic if you use the 'irqpoll' option it asks for?
Xen-pciback has no involvment as:


[  283.747488] xenbus_dev_shutdown: backend/pci/1/0: Initialised != Connected, skipping

and the guest still keeps on getting interrupts.

What is the stack at the hang? 
> 
> > > 6. Guest hang after resuming from S3
> > >   http://bugzilla.xen.org/bugzilla/show_bug.cgi?id=1828
> > 
> > Jan posted some patches to fix that. Can you test with an up-to-date
> > guest? (so not RHEL6U1 which does not have the fix).
> > 
> I tested a RHEL guest with Linux kernel 3.5.3 which already includes Jan's patches you mentioned.
> It will not fix this bug.
> If using kernel 3.5.3 in guest, the guest totally can't resume after running ' xl trigger $dom_ID s3resume'.
> There's some info (as following) in 'xl dmesg' when trying to resume the guest.
> (XEN) HVM10: S3 resume called 00fe 0x00099180
> (XEN) HVM10: S3 resume jump to 9918:0000
> But the guest can't resume.
> 
> > > 7. Dom0 S3 resume fails
> > >   http://bugzilla.xen.org/bugzilla/show_bug.cgi?id=1707
> > 
> > Yeah, that one is mine. Have some patches for that I will post soonish.
> > >
> > > Best Regards,
> > >      Yongjie (Jay)
> > >
> > >
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