On Fri, 10 Jan 2025 09:14:47 +0100 David Hildenbrand <david@xxxxxxxxxx> wrote: > > To migrate huge 0, we obtain huge x from the pool. After the migration > > is completed, we return the now-freed huge 0 back to the pool. When > > it's time to migrate huge 1, we can simply reuse the now-freed huge 0 > > from the pool. As a result, when replace_free_hugepage_folios() is > > executed, it cannot release huge 0 back to the buddy system. > > > > To slove the proble above, we should prevent reuse of isolated free > > hugepages. > > s/slove/solve/ > s/proble/problem/ > > > > > Link: https://lore.kernel.org/lkml/1734503588-16254-1-git-send-email-yangge1116@xxxxxxx/ > > Fixes: 08d312ee4c0a ("mm: replace free hugepage folios after migration") > > The commit id is not stable yet. > > $ git tag --contains 08d312ee4c0a > mm-everything-2025-01-09-06-44 > next-20250110 > > > We should squash this into the original fix. Can you resend the whole > thing and merge the patch descriptions? I queued this as replace-free-hugepage-folios-after-migration-fix-3.patch. But yes, a clean v4 with a redone changelog would be a nice thing to have.
