Re: [Xen-ia64-devel] [RFC] Enable dom0 to start X

[Tristan Gingold <Tristan.Gingold@xxxxxxxx>]

Le Lundi 24 Juillet 2006 14:22, Akio Takebe a écrit :
> Hi, all
>
> I'm debugging Xwindow system of dom0.
[...]
> At the results, I could startx, but not completely.
> I found X run while using 100% CPU with top command.
> The following messages were shown at that time.
>
> (XEN) lookup_domain_mpa: bad mpa 0xfbfd0738 (=> 0x20000000)
> (XEN) lookup_domain_mpa: d 0xf000000004288080 id 0 current
> 0xf000000004260000 id 0 (XEN) lookup_domain_mpa: bad mpa 0xfbfd0738 (=>
> 0x20000000)
> (XEN) lookup_domain_mpa: d 0xf000000004288080 id 0 current
> 0xf000000004260000 id 0 (XEN) lookup_domain_mpa: bad mpa 0xfbfd0738 (=>
> 0x20000000)
> (XEN) lookup_domain_mpa: d 0xf000000004288080 id 0 current
> 0xf000000004260000 id 0 (XEN) lookup_domain_mpa: bad mpa 0xfbfd0738 (=>
> 0x20000000)
> (XEN) lookup_domain_mpa: d 0xf000000004288080 id 0 current
> 0xf000000004260000 id 0 (XEN) lookup_domain_mpa: bad mpa 0xfbfd0738 (=>
> 0x20000000)
> (XEN) lookup_domain_mpa: d 0xf000000004288080 id 0 current
> 0xf000000004260000 id 0 (XEN) lookup_domain_mpa: bad mpa 0xfbfd0738 (=>
> 0x20000000)
> (XEN) lookup_domain_mpa: d 0xf000000004288080 id 0 current
> 0xf000000004260000 id 0 (XEN) lookup_domain_mpa: bad mpa 0xfbfd0738 (=>
> 0x20000000)
> (XEN) lookup_domain_mpa: d 0xf000000004288080 id 0 current
> 0xf000000004260000 id 0
>
> I think this 0xf000000004288080 is I/O page to be used by X.
> (this 0xf000000004288080 is also not shown in memmap of Tiger4)
> The I/O page seem to be not allocated.
> How/When should xen allocate this page?
Hi,

you are misreading the message.
The bad mpa is 0xfbfd0738!
0xf000000004288080 is the address of struct domain, which is a valid virtual 
address.

Tristan.

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