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Re: [Xen-devel] Re: [vt-d][xen4-rc6] Hangs on startup

To: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Subject: Re: [Xen-devel] Re: [vt-d][xen4-rc6] Hangs on startup
From: Łukasz Oleś <lukaszoles@xxxxxxxxx>
Date: Wed, 17 Mar 2010 22:48:28 +0100
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
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2010/3/17 Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>:
> On Wed, Mar 17, 2010 at 07:20:19PM +0100, Łukasz Oleś wrote:
> This is troubling:
> # (XEN) mm.c:859:d0 Error getting mfn 40100 (pfn 5555555555555555) from L1
> entry 8000000040100473 for l1e_owner=0, pg_owner=32753

It's happening durring dom0 start with and without iommu enabled.

> You need to run Linux kernel with more debugging. Use 'debug
> loglevel=10' to see it conjoined with Xen.

I need to recompile kernel, then I will post new logs.

> Also can you try to boot your machine _without_ using X?

You mean dom0 without XWindow? I don't have XWindow.
Or you mean dom0 without Xen? It works ok.
Or you mean domU without XWindow? I will try.

> When is this happening?
> # (XEN) mm.c:859:d2 Error getting mfn 40010 (pfn 5555555555555555) from L1
> entry 0000000040010037 for l1e_owner=2, pg_owner=2

It starts to show after xm create and stops after xm destroy when I
try to pass-through devices. Without pci=[ <devices>] option there is
no such error.

> At what point does this happen in the
> guest? Can you attach the screenshot of your guest when this is
> happening?

My vnc shows only white screen. xm console doesn't work. I have no
access to guest.

Without pci option guest works fine and I can connect to it.

Łukasz Oleś

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