Re: [Qemu-devel] memory hotplug with 2.1.2

[zhanghailiang]

Hi,

Have you tried the latest qemu (you can git clone from 
http://git.qemu.org/qemu.git).

Actually, i have posted a patch fc50ff0666315be5120c70ad00cd0b0097484b84
    pc-dimm: Don't check dimm->node when there is non-NUMA config

    It should not break memory hotplug feature if there is non-NUMA option.

    This patch would also allow to use pc-dimm as replacement for initial memory
    for non-NUMA configs.

    Note: After this patch, the memory hotplug can work normally for Linux 
guest OS
    when there is non-NUMA option and NUMA option. But not support Windows 
guest OS
    to hotplug memory with no-NUMA config, actully, it's Windows limitation.

    Reviewed-By: Igor Mammedov <address@hidden>
    Signed-off-by: zhanghailiang <address@hidden>
    Acked-by: Michael S. Tsirkin <address@hidden>
    Signed-off-by: Michael S. Tsirkin <address@hidden>

I think this will fix your problem, it will support hotplug a pc-dimm without 
configure numa node.

Hope this can help you, Thanks

Best Regards,
zhanghailiang

On 2014/10/18 1:11, Mikhail Sennikovskii wrote:
> Hi Andrey, thank you for your answer.
>
> I know I can work around this by specifying a numa node.
> My question is though is the current behaviour considered to be a bug, or
> not. And if yes, when it is expected to get fixed.
>
> Thanks,
> Mikhail
>
> On Fri, Oct 17, 2014 at 5:54 PM, Andrey Korolyov <address@hidden> wrote:
>
> > Please try to populate basic (single-node) NUMA topology to workaround
> > this (or specify numa node for dimm).