[Bug 294039] databases/postgresql14-server: jemalloc crashes triggered by autovacuum

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=294039

--- Comment #13 from Peter Much <pmc@citylink.dinoex.sub.org> ---
(In reply to Mark Johnston from comment #11)

I was asking because I was looking for a better way to reproduce, and also
because I am wondering why this seems to appear only here.
For test I am pushing full load on all cores (port building), and then only
within a day might get an issue, it burns a lot of energy (and it is noisy).
I can see that this is somehow related to swap; the machine runs under load
with 10-20 GB swap occupancy, and I have lowered vfs.zfs.arc.free_target to be
slightly above vm.v_free_min so it still holds a substantial amout of ARC.

Concerning Your new patch: now I see nothing at all! There was not a single one
of the printf() triggered during 22 hours. Taking the system back to regular
operations now.

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