Re: [Xen-devel] Regression PCI passthrough from 4.5.5 to 4.6.0-rc1

["Andreas Kinzler" <hfp@xxxxxxxxx>]

On Mon, 31 Jul 2017 12:12:45 +0200, Jan Beulich <jbeulich@xxxxxxxx> wrote:
> > > > "Andreas Kinzler" <ml-ak@xxxxxx> 07/17/17 6:32 PM >>>
> > > > Jan, I still have access to the hardware so perhaps we can finally  
> > > > solve
> > > > this problem.
> > > Feel free to go ahead; I'll be on vacation for the next three weeks.
> > Perhaps we can shortcut debugging a bit because I looked through the
> > patches of XenServer 7.2 and found the attached patch. Now I tried it  
> > and
> > it seems to solve all the problems. Does that patch look good to you,  
> > too?
> Iirc the patch had even been submitted once, and rejected as being not
> generally correct (i.e. it cures a symptom rather than the cause). What
> we'd need to know is the order of actions the guest takes which ought to
> result in the vector getting unmasked, but doesn't in reality.
I defined XEN_PT_LOGGING_ENABLED in xen_pt.h as requested without the  
"hack" patch. Log is attached. Does it help?
Regards Andreas

Attachment: xenpt.txt
Description: Text document

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