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Date: Fri, 10 Feb 2012 15:03:46 +0000 From: Ian Campbell <Ian.Campbell@...rix.com> To: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com> CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "xen-devel@...ts.xensource.com" <xen-devel@...ts.xensource.com> Subject: Re: [Xen-devel] [PATCH] xen/cpu: Make VCPU hotplug code online CPUs properly. On Fri, 2012-02-10 at 14:43 +0000, Konrad Rzeszutek Wilk wrote: > Offlining CPUs works. Onlining does not work anymore and it looks > like we were missing a cpu_up() call in the hotplug bring up path. Wasn't this a deliberate decision as part of the pvops upstreaming to be consistent with native cpu hotplug? After hotplugging a CPU administrator action is needed to actually online it. http://xen.1045712.n5.nabble.com/cpu-down-but-no-cpu-up-in-drivers-xen-cpu-hotplug-c-td2545244.html The fix is to add a udev rule: http://wiki.xen.org/wiki/Paravirt_Linux_CPU_Hotplug Ian. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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