Re: FYI; 14.3: A discord report of Wired Memory growing to 17 GiBytes over something like 60 days; ARC shrinks to, say, 1942 MiBytes

On Fri, Aug 15, 2025 at 4:24 AM Jan Martin Mikkelsen
<janm@transactionware.com> wrote:
>
>
> On 14 Aug 2025, at 06:35, Rick Macklem <rick.macklem@gmail.com> wrote:
>
> [ … ]
>
> Peter Eriksson posted this to me a little while ago...
> I wish I could upgrade our front-end servers from FreeBSD 13.5 btw -
> but there is a very troublesome issue with ZFS on FreeBSD 14+ -
> sometimes it runs amok and basically uses up all available RAM - and
> then the system load goes thru the roof and the machine basically
> grinds to a hold for _long_ periods - happens when we run our backup
> rsync jobs.
>
> https://github.com/openzfs/zfs/issues/17052
>
>
> I was seeing a problem just like this in the 14.3 betas during heavy workloads.
>
> The problem was fixed at around BETA4, I believe by this commit. https://cgit.freebsd.org/src/commit/?h=releng/14.3&id=7a9ea03e4bbfee1b2192d9a5b4da89a53d3a2c14
>
> Have you see a similar problem on 14.3?
The original report was for 14.3. Of course, they may have experienced
something different than what you did.
(I tried to look at whatever it was on the discord channel, but got
nothing useful,
just some sort of "welcome to discord..." message.)

I do hope that Peter can try 14.3 and determine if he still sees the problem
he reported.

rick

>
> Regards,
>
> Jan M.
>