From nobody Thu Apr 16 00:15:13 2026 X-Original-To: freebsd-current@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fwz6r6xhYz6ZkxH for ; Thu, 16 Apr 2026 00:15:16 +0000 (UTC) (envelope-from shawn.webb@hardenedbsd.org) Received: from mail-ot1-x329.google.com (mail-ot1-x329.google.com [IPv6:2607:f8b0:4864:20::329]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "WR4" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fwz6q1qskz41bZ for ; Thu, 16 Apr 2026 00:15:15 +0000 (UTC) (envelope-from shawn.webb@hardenedbsd.org) Authentication-Results: mx1.freebsd.org; none Received: by mail-ot1-x329.google.com with SMTP id 46e09a7af769-7d1872504cbso119683a34.0 for ; Wed, 15 Apr 2026 17:15:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=hardenedbsd.org; s=google; t=1776298513; x=1776903313; darn=freebsd.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=2kdBg/rcs7Ld3r8gkVOuXnNPR9hQFHBznCfkXcEvUk8=; b=O7qwFv+5xOcaueThVN3XTcGHGzbG++FK06VSHLKdutTY12SxsrXvxfzg8/KDBwch8Y TO3ujcoRiLWvXfNTECjvIk/QozfovyvsZArkSOoxQFmaiQWCiFx6WYO+dnTXXU9fTvlh Ma/voc/6l6yy9LVgoIbPFS1KwqJ+/PnPiQVPGylTm6/Xw9nAvfhxM50TAfMPsjqZ3YZI 8i/cM2NMVIHkCo6V1BDpe7GBVjTatF0xM8JtH6VEoVAbEHA2UXCXhrdcbI737YaYdwvl rx9fXQhST/zTHs1V0mj+24dgrnB1LchMMSlTRoll60BoQuiUoJB0b4jVudOMZr2w8Xsm xP6Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1776298513; x=1776903313; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-gg:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=2kdBg/rcs7Ld3r8gkVOuXnNPR9hQFHBznCfkXcEvUk8=; b=bvdegL37Ni/YH3Ks1r3cbrRYHuIaCrwh7xsQRRjB7p06inVPT1iayoYFdU1kelfyfR so/cm26UGPKEI7yLZykslMOndDL2SZsicWtXkDSoDyNg0PgXhE+XyfOF1IJCBVlL59Ih cI+SlHrN/koeCrrwnbGQe6YcuV9Om4tX2e8QKhYD0LY0l2Qf8LjrRDlMTgMlvKPz50UX Fb/Z/0FEOqNnpEr7kWrqeW5M8AAAkpj3u3EILW4H2grVKqoZY6m5eVEVru9HNVxxzVqK QB9t+C69hO7N8ESGgobMuKufKYuLbhjyeTqa33Pp+r9Ybv+euiHpPeKKpAq5BFr+QFbd USxw== X-Gm-Message-State: AOJu0Yzgl9Cd1LjCz6EVA2C0J2QcTF1SwzxKPktCWwRiG3O3oe06T2aK TDuP5X0V7dfMSCW0HsaWnOz1Z5VJdYKnuqorilbQ3wamMVYxaf8albFB6t2DnhheZwc= X-Gm-Gg: AeBDiesFTeRgHsmpUKCzwIJ8Jj90WftUZ21x7iMmV/QO943VwvPpCLF6EJ9L+DoMrhM 7KZ8vqKhNPJq/xGCy71VUaJHlblYGPNpyPTvcQVt95I1D6jFQNPbM19+IN/YeuMf5abA/vo0Ep1 /eMnUE2MGsW2gS+JEsJ6RJb8Zd79m+qvGSdftbm6/h90pFgrvwyprdCpBymCn7M6tbLGZ57HW0S A/mqfmI/0bnuCwdUgiinW75FgqZTIKVHMR4eEHtTMBdujvdrNgyQsyapFOYlyYNY0FE3w6Aucnk /zHFlp3w1aKD+QQHhoISQvGgPN2SUDROVQQeGYMnb0AFKeUItitGI+exjFHLsnmBmySN3vUG8iO jwRgrNxkpzNFpOpOf7PJSuHnXwuvFybJc74bAwkWtTqvME6lF1J8DIxRKMeiB1zPfunBGXHJEOZ r7+9+Zewzle6waP8I= X-Received: by 2002:a05:6830:368b:b0:7d7:c004:9d92 with SMTP id 46e09a7af769-7dc804116c4mr995664a34.8.1776298512906; Wed, 15 Apr 2026 17:15:12 -0700 (PDT) Received: from mutt-hbsd ([2001:470:4001:1::95]) by smtp.gmail.com with ESMTPSA id 46e09a7af769-7dc76a3612dsm2588014a34.10.2026.04.15.17.15.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 15 Apr 2026 17:15:12 -0700 (PDT) Date: Thu, 16 Apr 2026 00:15:13 +0000 From: Shawn Webb To: Michael Tuexen Cc: freebsd-current@freebsd.org Subject: Re: LRO Kernel Panic on Hyper-V VM Message-ID: X-Operating-System: FreeBSD mutt-hbsd 15.0-STABLE-HBSD FreeBSD 15.0-STABLE-HBSD HARDENEDBSD amd64 X-PGP-Key: https://git.hardenedbsd.org/hardenedbsd/pubkeys/-/blob/master/Shawn_Webb/03A4CBEBB82EA5A67D9F3853FF2E67A277F8E1FA.pub.asc References: <58C7670B-6D2A-402B-BBB8-865D652B9B08@FreeBSD.org> List-Id: Discussions about the use of FreeBSD-current List-Archive: https://lists.freebsd.org/archives/freebsd-current List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-current@FreeBSD.org MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="l6nu2ifpyi3u4xhx" Content-Disposition: inline In-Reply-To: X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN_FAIL(0.00)[9.2.3.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.4.6.8.4.0.b.8.f.7.0.6.2.asn6.rspamd.com:server fail] X-Rspamd-Queue-Id: 4fwz6q1qskz41bZ X-Spamd-Bar: ---- --l6nu2ifpyi3u4xhx Content-Type: text/plain; protected-headers=v1; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Subject: Re: LRO Kernel Panic on Hyper-V VM MIME-Version: 1.0 On Wed, Apr 15, 2026 at 10:37:08PM +0200, Michael Tuexen wrote: > > On 15. Apr 2026, at 22:12, Michael Tuexen wrote: > >=20 > >> On 15. Apr 2026, at 21:32, Shawn Webb wro= te: > >>=20 > >> Hey all, > >>=20 > >> I've updated one of my Hyper-V VMs earlier today against an up-to-date > >> source tree. I've noticed quite a few networking-related changes in > >> FreeBSD on 16-CURRENT and I suspect (at least) one of those changes is > >> problematic. > >>=20 > >> I'm not at all well-versed in the networking code, so I'm unsure > >> what's going on. > >>=20 > >> I've uploaded a core.txt dump: > >> https://hardenedbsd.org/~shawn/2026-04-15_lro-panic-r01.txt > > Thanks. The problem is that the vnet is not set correctly. > >=20 > > This should fix it: > > https://reviews.freebsd.org/D56420 > The fix has been committed: > https://cgit.FreeBSD.org/src/commit/?id=3D2d13620c6e1be7f8136095f648a6b82= 4158d0941 >=20 > Thanks for reporting the issue! Thanks a bunch for the quick fix! My Hyper-V VM is happy once again. --=20 Shawn Webb Cofounder / Security Engineer HardenedBSD Signal Username: shawn_webb.74 Tor-ified Signal: +1 303-901-1600 / shawn_webb_opsec.50 https://git.hardenedbsd.org/hardenedbsd/pubkeys/-/raw/master/Shawn_Webb/03A= 4CBEBB82EA5A67D9F3853FF2E67A277F8E1FA.pub.asc --l6nu2ifpyi3u4xhx Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEA6TL67gupaZ9nzhT/y5nonf44foFAmngKgoACgkQ/y5nonf4 4fpiuA/+JX6qrzFcBEKAVwNq8fBJYqMA1hidARyRp4s7I6ahMCr8t60DoVIya3+A fQyjB/veVaVzL4xgF0/Utp/l2Dx8as39PVQ0DTh1CBj8q4mvbg1YPKdmm812Komq eyu6MH4H7wE7/I92yX9XKaMGg4eV8bl07h1NcS6VCjKaWFhGVuVYDJlYYGSPKITx mnH0uA7/P0T6BzUFW0b5lAQXZz/Ln6LmVvLaYHZMi1WIG7bMfW5b0LYI8DWwZqT5 upNqcCckSg37NY0fIzHkYm14G6Y2bdbvZAbMkefPNf0Uas99RUJ4aMeI/WP7XZdK +EYnb/QRVvS2YC4gWauA/xN0v2JRKwS9he8BW0WVpLaYrROLvxiyw2ReOD6VTOKn vYMrHiK8AXYK4U7M4Tjf4LkECqw7oUNyBQY1HpmGwM1DYpGffu8hEspqsRUwo5Gg eatqhx9Tp2FEiyoWWiqY8Eq22Domfgzf9Rz3+RdYRIz2GusbeVzwvkKYdXMoT/NP k0yXKNrhxo9lNzilruWcIekKPvYgCMCFLcKwnSgBwY6hB7te2DVUKh3l+bSqkSv8 yonfcLyWOnx1L6msUjrcmBoioDaH7vCjf99BNA4MahzLNsK8vgUDPVvRiTaJvm2E J3ZAgz8EvcBALcCTDJ/WbgYaoyyxtyDTp3jBLDX/O+fTcF2fz3Q= =YgE7 -----END PGP SIGNATURE----- --l6nu2ifpyi3u4xhx--