Re: [PATCH v5 0/3] page_owner: print stacks and their counter

[Andrew Morton]

On Tue, 16 May 2023 20:25:34 +0200 Oscar Salvador <osalvador@xxxxxxx> wrote:

> 
> ...
>
> page_owner is a great debug functionality tool that gets us to know
> about all pages that have been allocated/freed and their stacktrace.
> This comes very handy when e.g: debugging leaks, as with some scripting
> we might be able to see those stacktraces that are allocating pages
> but not freeing theme.
> 
> ...
> 
>  include/linux/stackdepot.h |   8 +++
>  lib/stackdepot.c           | 128 ++++++++++++++++++++++++++++++++++---
>  mm/page_owner.c            |  54 ++++++++++++++++
>  3 files changed, 180 insertions(+), 10 deletions(-)

Documentation/mm/page_owner.rst is feeling very sad.

I'll toss it in there for some testing for now.  The changelogs would
benefit from a bit of proofreading, please - quite a few typos and
grammaros.