[Bug 280846] Low memory freezes / OOM: a thread waited too long to allocate a page

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=280846

--- Comment #57 from Mark Millard <marklmi26-fbsd@yahoo.com> ---
(In reply to Mark Millard from comment #49)
(In reply to Mark Millard from comment #51)

I missed the other place that a laundry figure is available:

vm.stats.vm.v_laundry_count: Pages eligible for laundering

The patch only seems to change one of the laundry counts.
That may or may not be deliberate, if true.

SO: it is possible that I previously misidentified the
association and have wordings based on the wrong places
being invovled or not in all the places.

The wording of the descriptions should make clear the
status for if Unswappable is included or not in each case.
("Eligible" might  be trying to imply the handling of
Unswappable --but I expect it is not effective if so.)

vm.stats.vm.* does not have anything analogous to
vm.domain.*.stats.unswappable (or a total of such)
as far as I can see.

(My test contexts have just one domain (0) so do not
show multi-domain distinctions well.)

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