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Re: [Xen-devel] Re: XEN boot hangs at ACPI: PCI Root Bridge [PCI0] (0000

To: Sander Eikelenboom <linux@xxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] Re: XEN boot hangs at ACPI: PCI Root Bridge [PCI0] (0000:00)
From: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Date: Mon, 15 Nov 2010 11:47:40 -0500
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, Neobiker <neo1106@xxxxxxxxxxx>
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On Sat, Nov 13, 2010 at 12:20:58AM +0100, Sander Eikelenboom wrote:
> Friday, November 12, 2010, 11:19:53 PM, you wrote:
> > On Thu, Nov 11, 2010 at 09:16:35AM -0800, Neobiker wrote:
> >> 
> >> Hi Konrad,
> >> 
> >> many folks need to use the Xenlinux Kernel due to missing features in pvops
> >> kernel...
> >> For me (neobiker), it's at a minimum pvusb for my VDR System which uses an
> >> usb device for DVB-S :-)
> > You could also do PCI passthrough of your USB card to the domain..
> I'm doing that, and it works, but there are a few pitfalls:
>     - With onboard controllers it can sometimes be hard to tell which usb 
> port ends up connected to which usb controller. Some motherboards seem to 
> connect them up rather randomly,so you never know which one to passthrough, 
> but it can differ per motherboard.

Oh I forgot to mention. I've got the USB capture thing and I reproduced the 
problem you saw
(with page_alloc failing). The issue was that I forgot to enable these two 
kernel optins:

kernel.shmall = 134217728 kernel.shmmax = 134217728

in the sysctl.conf. Once that was set it worked fine. Haven't put the xHCI 
controller in box yet

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