Re: [Qemu-devel] CPU hotplug

[Igor Mammedov]

On Thu, 30 Aug 2012 19:23:14 +0200
Stefan Priebe <address@hidden> wrote:

> Am 30.08.2012 18:43, schrieb Andreas Färber:
> > Am 30.08.2012 18:35, schrieb Stefan Priebe:
> >> Am 30.08.2012 um 17:41 schrieb Andreas Färber <address@hidden>:
> >>
> >>> Am 30.08.2012 11:06, schrieb Stefan Priebe:
> >>>> I tried latest 1.2rc1 kvm-qemu with vanilla kernel v3.5.2 but the VM
> >>>> just crashes when sending cpu_set X online through qm monitor.
> >>>
> >>> For SLES we're carrying a patch by Kamalesh Babulal that prevents this
> >>> (BNC#747339).
> >>
> >> But this just disables CPU [hotplug] and does Not fix it?
> >
> > It fixes the crash. Hotplug needs to be implemented first, and this has
> > been taking several months already (for x86, to be specific).
> 
> Mhm RHEL 6.3 claims to support this?
it's not officially supported, it's just tech-preview. That allows to play with
hotplug and uncover possible guest issues early.

> Dynamic virtual CPU allocation
> =>
> https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/6/html/6.3_Release_Notes/virtualization.html
>  
> 
> 
> Greets,
> Stefan


-- 
Regards,
  Igor