Re: [Xen-devel] Is: EPT violations. Was:Re: Problems with pci/vga passthrough

[Diederik de Haas <didi.debian@xxxxxxxxx>]

On dinsdag 24 januari 2017 13:28:28 CET Boris Ostrovsky wrote:
> >> Reported it at https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=852324
> >> but  given Ben Hutchings' reaction it seems to be a Xen problem after
> >> all.
> >> 
> >> Relevant part of earlier attached dmesg:
> >> 
> >> [   13.588386] WARNING: CPU: 18 PID: 1 at 
> >> /build/linux-zDY19G/linux-4.8.15/arch/x86/mm/dump_pagetables.c:225
> >> note_page+0x5e8/0x790 [   13.588388] x86/mm: Found insecure W+X mapping
> >> at address ffff880000000000/0xffff880000000000 ...
> >> [   13.608867] x86/mm: Checked W+X mappings: FAILED, 4602 W+X pages
> >> found.
> > 
> > Now this is a know issue, but I'm pretty convinced one that's entirely
> > unrelated to your problem.
> 
> I thought we fixed this. That's what is_hypervisor_range() was
> introduced for, and I haven't seen this warning since then.

When? Which commit?
Maybe it isn't (yet) in the Debian tree and/or I am using a kernel which 
doesn't contain that fix.

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