[Bug 275536] Wired memory leak

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=275536

            Bug ID: 275536
           Summary: Wired memory leak
           Product: Base System
           Version: 14.0-RELEASE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: bsd@orsolic.org

Created attachment 246785
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=246785&action=edit
logs

I am experiencing leaking of memory after few weeks of uptime.
After 30 days of uptime, wired memory is above 30 GB (of 48 GB of RAM).
PC is FreeBSD 14.0-RC2 amd64 machine with 48 GB of RAM with 2-3 VMs (with PCI
passthru), couple of Firefoxes, CAD, shells, editors, ...
ZFS ARC is limited to 2 GB.
Looking through vmstat output it seems that culprit is "vm_pgcache"

What is vm_pgcache?
How I can limit it?

The logs I have collected are in the attachment. They are collected before
rebooting the machine with VMs and most of programs shutdown.
Unfortunately I didn't collect all the logs but I will in month or so...

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