Re: [libvirt] [Qemu-ppc] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

On Mon, 4 Mar 2019 09:11:19 +0100 Thomas Huth <thuth(a)redhat.com&gt; wrote: > On 01/03/2019 18.48, Daniel P. Berrangé wrote: > [...] > > So I think this patch has to be dropped & replaced with one that > > simply documents that memdev syntax is preferred. > > That's definitely not enough. I've had a couple of cases already where > we documented that certain options should not be used anymore, and > people simply ignored it (aka. if it ain't broken, don't do any change). > Then they just started to complain when I really tried to remove the > option after the deprecation period. > So Igor, if you can not officially deprecate these things here yet, you > should at least make sure that they can not be used with new machine > types anymore. Then, after a couple of years, when we feel sure that > there are only some few or no people left who still use it with the old > machine types, we can start to discuss the deprecation process again, I > think. Is it acceptable to silently disable CLI options (even if they are broken like in this case) for new machine types? I was under impression that it should go through deprecation first.