On 07.08.20 06:32, Andrew Morton wrote: > 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"? I recall the issue Michal saw was "fix powerpc" vs. "break other architectures". @Michal how should we proceed? At least x86-64 won't be affected IIUC. -- Thanks, David / dhildenb
