linux-kernel - Re: [Xen-devel] Re: [PATCH 1/5] xen: events: use irq_alloc_desc(_at) instead of open-coding an IRQ allocator.

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Date:	Tue, 26 Oct 2010 09:15:48 +0100
From:	Ian Campbell <Ian.Campbell@...rix.com>
To:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
CC:	Jeremy Fitzhardinge <jeremy@...p.org>,
	"xen-devel@...ts.xensource.com" <xen-devel@...ts.xensource.com>,
	Stefano Stabellini <Stefano.Stabellini@...citrix.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"H. Peter Anvin" <hpa@...or.com>, "mingo@...e.hu" <mingo@...e.hu>,
	"tglx@...utronix.de" <tglx@...utronix.de>
Subject: Re: [Xen-devel] Re: [PATCH 1/5] xen: events: use
 irq_alloc_desc(_at) instead of open-coding an IRQ allocator.

On Mon, 2010-10-25 at 19:02 +0100, Ian Campbell wrote:
> 
> 
> > What do you see when you pass in a PCI device and say give the guest
> 32 CPUs??
> 
> I can try tomorrow and see, based on what you say above without
> implementing what I described I suspect the answer will be "carnage". 

Actually, it looks like multi-vcpu is broken, I only see 1 regardless of
how many I configured. It's not clear if this is breakage in Linus'
tree, something I pulled in from one of Jeremy's, yours or Stefano's
trees or some local pebcak. I'll investigate...

Ian.


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