Re: CURRENT: kernel panic in IPFW while stopping jails

From: David Wolfskill <david_at_catwhisker.org>
Date: Thu, 25 Dec 2025 16:43:42 UTC
On Thu, Dec 25, 2025 at 05:09:15PM +0100, FreeBSD User wrote:
> Hello,
> 
> on recent CURRENT ipfw (in my case compiled into kernel) either restarting
> "ipfw" via "service ipfw restart" or restarting jails using also ipfw on a host
> also using ipfw (jail-hoster also ipfw compiled into kernel) causes a fatal
> kernel crash.
> ...
> At least I can reproduce this misbehaviour on all recent CURRENT were IPFW is
> compiled into kernel. Anybody else havong this trouble?
> 
> Kind regards,
> 
> Oliver

While I have some machines where I track stable/14 (for now), stable/15,
and head -- daily -- and the laptops use a kernel with ipfw compiled in,
I have not encountered issues with head since 17 December
(main-n282567-7a83fedc116d -> main-n282596-405188aeac54).  The most
recent build was:

FreeBSD 16.0-CURRENT #7 main-n282707-4f184fd35d81: Thu Dec 25 12:56:01 UTC 2025     root@g1-120.catwhisker.org:/common/S4/obj/usr/src/amd64.amd64/sys/CANARY amd64 1600007 1600007

That said, those machines don't run jails.  They do use UFS file systems
on SSDs, though.

Peace,
david
-- 
David H. Wolfskill                              david@catwhisker.org

See https://www.catwhisker.org/~david/publickey.gpg for my public key.