lkml.org 
[lkml]   [2012]   [Feb]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [Xen-devel] [PATCH] xen/cpu: Make VCPU hotplug code online CPUs properly.
From
Date
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.




\
 
 \ /
  Last update: 2012-02-10 16:05    [W:0.040 / U:0.024 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site