Re: [libvirt] [Qemu-devel] [PATCH V17 02/11] NUMA: check if the total numa memory size is equal to ram_size
Il 10/12/2013 14:15, Eduardo Habkost ha scritto:
> > If the total number of the assigned numa nodes memory is
not
> > equal to the assigned ram size, it will write the wrong data
> > to ACPI talb, then the guest will ignore the wrong ACPI table
> > and recognize all memory to one node. It's buggy, we should
> > check it to ensure that we write the right data to ACPI table.
> >
> > Signed-off-by: Wanlong Gao <gaowanlong(a)cn.fujitsu.com>
This will make configurations that could be running for years (except
that the guest OS was ignoring the NUMA data) suddenly stop running. I
just want to confirm: we really want that, right?
Does libvirt allow this kind of broken configuration to be generated, or
it already ensures the total NUMA node sizes match RAM size?
It allows this. It just converts the <numa> XML to "-numa node".
Paolo