From nobody Wed Dec 08 04:18:25 2021 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 E6DEB18CB770 for ; Wed, 8 Dec 2021 04:18:25 +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 4J83nF1hTRz3K4r for ; Wed, 8 Dec 2021 04:18:25 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) 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 051A04A1A for ; Wed, 8 Dec 2021 04:18:25 +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 1B84IOli013862 for ; Wed, 8 Dec 2021 04:18:24 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 1B84IOIW013861 for net@FreeBSD.org; Wed, 8 Dec 2021 04:18:24 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 221122] Attaching interface to a bridge stops all traffic on uplink NIC for few seconds Date: Wed, 08 Dec 2021 04:18:25 +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: 11.1-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: mav@FreeBSD.org X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: 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 ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1638937105; 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=xxgrG12uJkUOk0d8fKnAdpSa0SKfbQ2e/s80hWXtBHA=; b=dwdymaEoB6uFHuMFUAG/2sa1qHhYJrbZ3eczNfZR5dfNFKgdvilIClUKx7he9NF+nmS2z7 gOhWAkTk4r7W9LKdX9kNtxIxnmJ6DaLh6k4zKP9jpYN4RU89UBq/Dyl8kp35PIOTDXgHWh ER/RL4PS4X50GVVmA0GNJnMe/dyd6S/n1UmlIUOnvD6vCJgGvbkUATpzzQrp8DQTCHxGCY bMFby4jiPUD7XAmcuyqAI57AlLxfZ2xMvTQqAIKc2a4n+g/DedW40qmcvjScbTdDRIVZzB sHy82fbF5XN9+QlxaOJD7cQGC71AFBiqkgNe5K7J1nG5xepo4RcyjhpZGPCUJw== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1638937105; a=rsa-sha256; cv=none; b=D8uGSy0JM113QvUFN+Bt4IXVy5NMnFFLl9nVdBGdl1Xk76UUiTGdaWycW76ecBFVzscGez ixuP5rvcq9UIujDBlda41SBBHFEIx1Iz0mPgtzY7cXt9b9rSf3qSpYmOmWTwIu2nZVsCrt bBSPxFD/pI6ll0gc1sLk2RsCqZUmx25Dg+XolW2TUbQFysD8nHRZzMTMm4IC61jGLBDUc4 7p3NWP2xobxmZ7sFhoJKis54wFiy2yszbMkSBV35SDkPcUoaGfJzOK2FqHEGE9ETSxhBVB 1f+he1VcNb59vhaxzQtXOkbQ4CxzmrXcBy9QtCnRUumVlyKlkHbbV27g5Pwq5g== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D221122 --- Comment #21 from Alexander Motin --- Mason, I don't see how this can be fixed without either significantly complicating the bridge driver to handle TSO/LRO/etc offload in software, or without making Intel drivers somehow avoid chip reset on interface capabili= ty changes (if that is even possible). In TrueNAS we've workarounded this problem by adding UI checkbox to preemptively disable interface offload on boot. Done earlier it allows to avoid the interface flap later. --=20 You are receiving this mail because: You are the assignee for the bug.=