On Fri, Nov 08, 2024 at 08:00:25PM +0100, David Hildenbrand wrote: > On 08.11.24 19:56, David Hildenbrand wrote: > > On 08.11.24 18:33, SeongJae Park wrote: > > > + David Hildenbrand > > > > > > On Thu, 7 Nov 2024 15:56:12 -0800 Joanne Koong <joannelkoong@xxxxxxxxx> wrote: > > > > > > > In offline_pages(), do_migrate_range() may potentially retry forever if > > > > the migration fails. Add a return value for do_migrate_range(), and > > > > allow offline_page() to try migrating pages 5 times before erroring > > > > out, similar to how migration failures in __alloc_contig_migrate_range() > > > > is handled. > > > > > > I'm curious if this could cause unexpected behavioral differences to memory > > > hotplugging users, and how '5' is chosen. Could you please enlighten me? > > > > > > > I'm wondering how much more often I'll have to nack such a patch. :) > > A more recent discussion: https://lore.kernel.org/linux-mm/52161997-15aa-4093-a573-3bfd8da14ff1@xxxxxxxxxxx/T/#mdda39b2956a11c46f8da8796f9612ac007edbdab > > Long story short: this is expected and documented Thanks David for the background. Joanne, simply drop this patch. It is not required for your series.