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

So we just had the exact same failure on a much older, much smaller
NFS server (only 128G RAM, 6G free).  Really not much activity going
on at the time, but this server was upgraded to 14.3 on the same day
as the other server, so both had 70 days of uptime.

Wondering now if I should enable `vm.panic_on_oom` across the fleet,
because these servers can often reboot faster than our monitoring
takes to notice a fault (particularly when only some daemons are
getting killed).

-GAWollman