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Date:      Fri, 21 Jan 2022 08:09:26 -0800
From:      David Wolfskill <david@catwhisker.org>
To:        current@freebsd.org
Cc:        Wojciech Macek <wma@freebsd.org>
Subject:   Re: panic main-n252563-eb815a741940: Bad tailq NEXT(0xfffffe001d7a3ad8->tqh_last) != NULL
Message-ID:  <YeratpYEDoUcb2rT@albert.catwhisker.org>
In-Reply-To: <Yeqn%2BNShCQOq8Evs@albert.catwhisker.org>
References:  <Yeqn%2BNShCQOq8Evs@albert.catwhisker.org>

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On Fri, Jan 21, 2022 at 04:32:56AM -0800, David Wolfskill wrote:
> This is for main-n252563-eb815a741940, after an update from yesterday's
> main-n252546-e0282802a6ec:
>=20
> FreeBSD 14.0-CURRENT #401 main-n252546-e0282802a6ec: Thu Jan 20 04:15:42 =
PST 2022     root@g1-51.catwhisker.org:/common/S4/obj/usr/src/amd64.amd64/s=
ys/CANARY  amd64 1400048 1400048
>=20
> Screenshots (from each of 2 laptops) are in
> https://www.catwhisker.org/~david/FreeBSD/head/n252563/
> ...=20
> I'm happy to provide more information, once I know what to provide.
> ....

Reverting 9ce46cbc95d7a6fccb55af0d42cbb85c29f10639, then rebuilding the
kernel, avoids the panic on the 2nd laptop.  (I'm using the first one,
as usual.)

Ref.
https://cgit.freebsd.org/src/commit/?id=3D9ce46cbc95d7a6fccb55af0d42cbb85c2=
9f10639

Given that the laptops (which use ipfw) saw the panic and the build
machine (which does not) did not, there may be a relationship.

I'm happy to test possible fixes (on the 2nd laptop).

Peace,
david
--=20
David H. Wolfskill                              david@catwhisker.org
"We can either be loyal to Donald Trump or we can be loyal to the
Constitution, but we cannot be both." - Elizabeth ("Liz") Cheney

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

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