On Wed, Oct 19, 2022 at 12:55:19PM -0700, Andrew Morton wrote: > On Wed, 19 Oct 2022 19:59:13 +0100 Matthew Wilcox <willy@xxxxxxxxxxxxx> wrote: > > > On Wed, Jun 01, 2022 at 01:44:11PM -0700, Andrew Morton wrote: > > > > > > The patch titled > > > Subject: mm/page_alloc: reduce potential fragmentation in make_alloc_exact() > > > has been added to the -mm mm-unstable branch. Its filename is > > > mm-page_alloc-reduce-potential-fragmentation-in-make_alloc_exact.patch > > > > This patch doesn't seem to have made it upstream yet ... what happened? > > I don't see it in mm-unstable any more, and I don't have an email saying > > that it was dropped. > > That was around the time I was transitioning stuff into the git-based > workflow and I guess it got lost in the mayhem. Thanks, I resurrected > it. Thanks. We may need to get it to Linus soon. This patch was required to make some nommu platforms work with the maple tree as the current code ends up fragmenting memory to the point that it can no longer run executables. I haven't seen any bug reports yet, but I can imagine that nommu is much more lightly tested than many other configs.