netdev - Re: [RFC PATCH V2] New Xen netback implementation

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Message-ID: <1327935707.5553.27.camel@leeds.uk.xensource.com>
Date:	Mon, 30 Jan 2012 15:01:47 +0000
From:	Wei Liu <wei.liu2@...rix.com>
To:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
CC:	<wei.liu2@...rix.com>, Ian Campbell <Ian.Campbell@...rix.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"xen-devel@...ts.xensource.com" <xen-devel@...ts.xensource.com>,
	"David Vrabel" <david.vrabel@...rix.com>,
	Paul Durrant <Paul.Durrant@...rix.com>
Subject: Re: [RFC PATCH V2] New Xen netback implementation

On Sun, 2012-01-29 at 21:37 +0000, Konrad Rzeszutek Wilk wrote:
> Sure. I also did some testing with limiting the amount of CPUs and found
> that 'xl vcpu-set 0 N' make netback not work anymore :-( 
> > 

Any stack trace? Oops message? Did you increase the number of CPUs or
decrease the number?

I didn't pay much attention on the CPU hotplug path TBH. And the V3
series, which I just posted, has a completed different per-cpu scratch
space implementation, which takes care of CPU hotplug events.


Wei.

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