From nobody Sat May 13 18:41:06 2023 X-Original-To: net@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 4QJZGD0Fj6z4BfDR for ; Sat, 13 May 2023 18:41:08 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4QJZGC6NR2z3kRJ for ; Sat, 13 May 2023 18:41:07 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1684003267; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=TDNJTzgN149OdgjBY31S9iVuaatps+Ss+KNYqnZRbsE=; b=rK4idk/gBZc/RVj9xssUvEtjp+VfiNd0IGrzDlQON/jsDZ+vt4nQN4Wk4/F3vOoGLFBoQa runIFHyCsPTsGV0upJ7KAvH4cPmLrYNCmd3pGprmNtQlSccBt2C3uNTquz1emH7lb3R1zd Et1I4P5mrVy0POv0T/F0rlyfqiM99Bbd8zRia+6fiED6QBPSv8XrC82ZMcUjzlkx5w9Gq2 ATPmxqYRYI9ed4XwtKe4re5IpCA4HM7zpuhahjMiftrcEXRzjLTuxLmYNAhS/KSE4+5+Qf p1pRpjNZQ6h5EWhqLMA1waUxOEW9zjw5942yGFN5h4dp7JhfPXpD0+AhzLw3uA== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1684003267; a=rsa-sha256; cv=none; b=hnLT8VCS0qU5qzQxIZ7KAluStbmwg52/yDeO7ILOXoWrcZgICoEpUN4WlLj1YRW25EoIK1 0TrZJ2zT6cwmZSA6+qg3Va9cpngYx+1N7eO7qlIDbDbwiX0TsJVX39rlbhyydPocuz2o5E AOHFE86K0Pgod/3BqUzl0uCphZLBhGKfQzyhYAOHQuBEn7jqOIW2J7R9fim1xNaOVKM/HK RoHPsGgMHjtYw/9/FN3CHDdUhp00v4jZNQnDuov4d0OhB7Dziu0w72GkHANpUZuoDw1G8i yj0YAwPL1mdnQwg+vpQ+3JWCSTqYh2YOMhqvz++zYCDHvzNTnGW3d3kpp8Cq8g== Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4QJZGC5SP2zSQZ for ; Sat, 13 May 2023 18:41:07 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 34DIf7Bg051661 for ; Sat, 13 May 2023 18:41:07 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 34DIf7cm051660 for net@FreeBSD.org; Sat, 13 May 2023 18:41:07 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 270859] dmesg message: mce0: a looped back NS message is detected during DAD Date: Sat, 13 May 2023 18:41:06 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 13.2-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: hselasky@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@freebsd.org MIME-Version: 1.0 X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D270859 Hans Petter Selasky changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |hselasky@FreeBSD.org --- Comment #3 from Hans Petter Selasky --- Hi, The prints are related to IPv6 handling.=20 What is the state of the following sysctls: sys/dev/mlx5/mlx5_en/en.h: m(+1, u64, mc_local_lb, "mc_local_lb", "0: Local multicast loopback enabled 1: Disabled") \ sys/dev/mlx5/mlx5_en/en.h: m(+1, u64, uc_local_lb, "uc_local_lb", "0: Local unicast loopback enabled 1: Disabled") \ There is a feature in the NIC to loopback the certain packets, confusing the IPv6 stack in FreeBSD. This setting may also be in the hypervisor, and not = the VM. That's my best guess for the culpit of this issue. Sorry for late answer. --HPS --=20 You are receiving this mail because: You are the assignee for the bug.=