From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wei Liu Subject: Re: [RFC PATCH V2] New Xen netback implementation Date: Mon, 30 Jan 2012 15:01:47 +0000 Message-ID: <1327935707.5553.27.camel@leeds.uk.xensource.com> References: <1326808024-3744-1-git-send-email-wei.liu2@citrix.com> <20120127192214.GA14437@phenom.dumpdata.com> <1327844561.2911.5.camel@leeds.uk.xensource.com> <20120129213746.GA7164@phenom.dumpdata.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: , Ian Campbell , "netdev@vger.kernel.org" , "xen-devel@lists.xensource.com" , "David Vrabel" , Paul Durrant To: Konrad Rzeszutek Wilk Return-path: Received: from smtp.eu.citrix.com ([62.200.22.115]:24356 "EHLO SMTP.EU.CITRIX.COM" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753444Ab2A3PBg (ORCPT ); Mon, 30 Jan 2012 10:01:36 -0500 In-Reply-To: <20120129213746.GA7164@phenom.dumpdata.com> Sender: netdev-owner@vger.kernel.org List-ID: 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.