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Date: Thu, 30 Aug 2012 20:40:16 +0200
From: Igor Mammedov <imammedo@redhat.com>
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Subject: Re: [Qemu-devel] CPU hotplug
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To: Stefan Priebe <s.priebe@profihost.ag>
Cc: Bo Yang <BoYang@suse.com>, Bruce Rogers <brogers@suse.com>, Andreas =?ISO-8859-1?B?RuRyYmVy?= <afaerber@suse.de>, qemu-devel <qemu-devel@nongnu.org>

On Thu, 30 Aug 2012 19:23:14 +0200
Stefan Priebe <s.priebe@profihost.ag> wrote:

> Am 30.08.2012 18:43, schrieb Andreas F=E4rber:
> > Am 30.08.2012 18:35, schrieb Stefan Priebe:
> >> Am 30.08.2012 um 17:41 schrieb Andreas F=E4rber <afaerber@suse.de>:
> >>
> >>> 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).
>=20
> 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
> =3D>
> https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/6=
/html/6.3_Release_Notes/virtualization.html=20
>=20
>=20
> Greets,
> Stefan


--=20
Regards,
  Igor