On Fri, 3 Jul 2020 18:28:23 +0530 Srikar Dronamraju <srikar@xxxxxxxxxxxxxxxxxx> wrote: > > The memory hotplug changes that somehow because you can hotremove numa > > nodes and therefore make the nodemask sparse but that is not a common > > case. I am not sure what would happen if a completely new node was added > > and its corresponding node was already used by the renumbered one > > though. It would likely conflate the two I am afraid. But I am not sure > > this is really possible with x86 and a lack of a bug report would > > suggest that nobody is doing that at least. > > > > JFYI, > Satheesh copied in this mailchain had opened a bug a year on crash with vcpu > hotplug on memoryless node. > > https://bugzilla.kernel.org/show_bug.cgi?id=202187 So... do we merge this patch or not? Seems that the overall view is "risky but nobody is likely to do anything better any time soon"?
