On Thu 29-08-19 13:55:24, David Hildenbrand wrote: > On 29.08.19 10:38, Michal Hocko wrote: > > On Mon 26-08-19 20:23:38, Aneesh Kumar K.V wrote: > > [...] > >> I did report a variant of the issue at > >> > >> https://lore.kernel.org/linux-mm/20190514025354.9108-1-aneesh.kumar@xxxxxxxxxxxxx/ > > > > Is this an instance of the same problem noticed > > http://lkml.kernel.org/r/20190725023100.31141-3-t-fukasawa@xxxxxxxxxxxxx > > and > > http://lkml.kernel.org/r/20190828080006.GG7386@xxxxxxxxxxxxxx > > ? > > > > I think it is related as far as I can tell. I think I could also use > pfn_zone_device_reserved() to skip over uninitialized memmaps in the > zone shrinking code. No, we do not want to special case this. We should be able to make these struct page initialized. -- Michal Hocko SUSE Labs