[win-pv-devel] [SOLVED] RE: xen net/vif (signed 8.2.0.6) "code 10" / win7

[Martin Cerveny <martin@xxxxxxxxx>]

Hello.

On Tue, 9 Jan 2018, Paul Durrant wrote:
> > Sent: 08 January 2018 17:30
> > Captured/attached "boot" debugview:
> > - when OK
> > - when "xen-network dialog popup say restart needed"
> > - when failed
> Thanks Martin. Much more useful...
>
> From the failure case I can see that your guest is running out of grant 
> references. I suspect that, what has happened is you've upgraded your 
> backend OS and suddenly multi-page storage rings have become available 
> in blkback. Your XENVBD driver is then making use of those and stealing 
> most of your VM's grant references. XENVIF is then starting up and 
> finding it doesn't have sufficient grant references to operate correctly 
> and is therefore failing to start.
> You have a couple of choices... Either increase your VM's grant frame 
> limit (see man xl.cfg for new per-vm parameters in Xen 4.10) or limit 
> your storage backend's rings to a lower number of pages (see modinfo 
> xen-blkback and look for max_ring_page_order... I suggest setting to 0).
Yes. This should be that. I extended "max_grant_frames=256" in VM config 
(in json in my case, btw. the global settings in /etc/xen/xl.conf does not 
work in my case) and it seems to work now (no more errors "XENBUS|GnttabExpand: fail1 (c000009a)").
> Hmm, it may be possible. I am not sure but the problem could be appearing
> after upgrade from Xen4.8.0 + 4.7.9-200.fc24 to Xen4.10.0 + 4.13.9-300.fc27.
Does anyone tests defaults ?

Thanks, Martin

_______________________________________________
win-pv-devel mailing list
win-pv-devel@xxxxxxxxxxxxxxxxxxxx
https://lists.xenproject.org/mailman/listinfo/win-pv-devel