On Tue, 30 Nov 2021 14:29:02 +0530 "Aneesh Kumar K.V" <aneesh.kumar@xxxxxxxxxxxxx> wrote: > > What's the thinking here? The node can later be offlined and the > > kernel takes no action to reset home nodes, so why not permit setting a > > presently-offline node as the home node? Checking here seems rather > > arbitrary? > > The node online check was needed to avoid accessing > uninitialised pgdat structure. Such an access can result in > below crash Oh. This is unobvious from reading the code. Which calls for a comment, no?
