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AW: Re: [Xen-devel] Re: PCI passthrough stopped working, brainache!

To: "konrad.wilk" <konrad.wilk@xxxxxxxxxx>
Subject: AW: Re: [Xen-devel] Re: PCI passthrough stopped working, brainache!
From: "Carsten Schiers" <carsten@xxxxxxxxxx>
Date: Sat, 15 Oct 2011 17:37:20 +0200
Cc: "xen.lists" <xen.lists@xxxxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, "Ian.Campbell" <Ian.Campbell@xxxxxxxxxx>
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Interesting. Konrad, do you remember that one of my DVB cards did 
consume double CPU time 
as compared to a) old Xenified 2.6.18 b) Xenified 2.6.34 and c) mem=2G 
Dom0? Maybe these
observations are somehow connected.

It did work, though... Unfortunately, I sold these cards to have only 
one, which is 

Carsten.

-----Ursprüngliche Nachricht-----
Von: Andy Burns [mailto:xen.lists@xxxxxxxxxxx] 
Gesendet: Samstag, 15. Oktober 2011 13:28
An: Ian Campbell; Konrad Rzeszutek Wilk; xen-devel
Betreff: Re: [Xen-devel] Re: PCI passthrough stopped working, brainache!

On 15 October 2011 11:36, Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote:

> I think you've got 8G of RAM so one thing which might be worth trying 
is
> to give "mem=2G" (or perhaps 3G) on the hypervisor command line. That
> ought to rule out addresses which are too high. (just a datapoint, not 
a
> solution)

A coconut for the gentleman!

Working in dom0 and (with page-alignment of the PCI BARs) in the domU,
I did check a couple of reboots and a cold start too, just in case!

So what's to look at for the real cause?

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