On 2025-07-04 16:11, Andrew Morton wrote:
On Fri, 4 Jul 2025 14:22:11 -0400 Luiz Capitulino <luizcap@xxxxxxxxxx> wrote:
The patch is simple enough. I'll add fixes:f1a7941243c1 and cc:stable
and, as the problem has been there for years, I'll leave the patch in
mm-unstable so it will eventually get into LTS, in a well tested state.
Andrew, are you considering submitting this patch for 6.16? I think
we should, it does look like a regression for larger systems built
with 64k base page size.
I wasn't planning on 6.16-rcX because it's been there for years but
sure, I moved it into the mm-hotfixes pile so it'll go Linuswards next
week.
Wonderful, thank you!
On comparing a very simple app which just allocates & touches some
memory against v6.1 (which doesn't have f1a7941243c1) and latest
Linus tree (4c06e63b9203) I can see that on latest Linus tree the
values for VmRSS, RssAnon and RssFile from /proc/self/status are
all zeroes while they do report values on v6.1 and a Linus tree
with this patch.
Cool, I'll paste this para into the changelog to help people link this
patch with wrong behavior which they are observing.
OK.
