Re: "failed to reclaim memory" with much free physmem

On Fri, Sep 12, 2025 at 8:24 AM Mark Millard <marklmi@yahoo.com> wrote:
>
> Garrett Wollman <wollman_at_bimajority.org>
> Date: Fri, 12 Sep 2025 04:05:34 UTC
>
> . . .
>
> > https://bimajority.org/%7Ewollman/memory-pinpoint%3D1756957462%2C1757648662.png
> >
> > shows the memory utilization over the course of the past week
> > including the incident on Tuesday morning. I don't know why there's
> > 25G of inactive pages for three days leading up to the OOM; perhaps
> > that's related? Inactive is normally much less than 1G.
>
> Is the growth to huge wired figures like 932.89G something
> new --or has such been historically normal?
Given your report here:
https://lists.freebsd.org/archives/freebsd-stable/2025-August/003024.html
and an offlist report I got from Peter Errikson (copied into the above thread),
I'd guess the problem was introduced by the transition to ZoL (which means
14.n, I think?).

I don't know who the best guys to figure this out would be, but I suspect
more of them will notice if you post to freebsd-current@ (yes, I know
freebsd-stable@ is technically the correct list, but if the right people
don't see the post..).

I'd really like to see this figured out, but I have no idea how to
proceed. As I noted, there is a lot of arc related stuff in the Linux
port that is not in the FreeBSD port of ZFS, but I have no idea if/what
needs to be done?

rick
ps: I've at least added a couple of cc's in the hope they might have
      some ideas.

>
> ===
> Mark Millard
> marklmi at yahoo.com
>
>