From owner-freebsd-net@freebsd.org Tue Mar 12 13:48:35 2019 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id E2D5415313BA for ; Tue, 12 Mar 2019 13:48:34 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id 607EB8ED7C for ; Tue, 12 Mar 2019 13:48:34 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id 1F96D15313B9; Tue, 12 Mar 2019 13:48:34 +0000 (UTC) Delivered-To: net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 0B8BE15313B8 for ; Tue, 12 Mar 2019 13:48:34 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.ysv.freebsd.org (mxrelay.ysv.freebsd.org [IPv6:2001:1900:2254:206a::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 94DF98ED79 for ; Tue, 12 Mar 2019 13:48:33 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.ysv.freebsd.org (Postfix) with ESMTPS id D2875EEFC for ; Tue, 12 Mar 2019 13:48:32 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id x2CDmWc6085746 for ; Tue, 12 Mar 2019 13:48:32 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id x2CDmWic085745 for net@FreeBSD.org; Tue, 12 Mar 2019 13:48:32 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 236486] [igb] txcsum produces broken checksum for I350 Gigabit Network Connection Date: Tue, 12 Mar 2019 13:48:32 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 11.2-STABLE X-Bugzilla-Keywords: IntelNetworking X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: eugen@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: bug_id short_desc product version rep_platform op_sys bug_status keywords bug_severity priority component assigned_to reporter Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Mar 2019 13:48:35 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D236486 Bug ID: 236486 Summary: [igb] txcsum produces broken checksum for I350 Gigabit Network Connection Product: Base System Version: 11.2-STABLE Hardware: amd64 OS: Any Status: New Keywords: IntelNetworking Severity: Affects Some People Priority: --- Component: kern Assignee: net@FreeBSD.org Reporter: eugen@freebsd.org Hi! The server Dell PowerEdge R640 (baseboard 0PHYDR) with BIOS Version: 1.6.13 02/13/2019 [Hetzner 1.0.2] has Intel 1GB i350 network card: igb0@pci0:1:0:0: class=3D0x020000 card=3D0x1f9a1028 chip=3D0x1521808= 6 rev=3D0x01 hdr=3D0x00 vendor =3D 'Intel Corporation' device =3D 'I350 Gigabit Network Connection' class =3D network subclass =3D ethernet It runs FreeBSD 11.2-STABLE/amd64 r344922 with GENERIC kernel config plus following options only: options KDB options KDB_UNATTENDED options KDB_TRACE options DDB options GDB It also runs ipfw nat that is not compatible with TSO4 so this option is disabled for igb0. Still, running with tso4 disabled and txcsum enabled, it suffers from stalled TCP connections due to some TCP segments being sent wi= th broken checksum occasionally. ifconfig igb0 -txcsum solves the problem. --=20 You are receiving this mail because: You are the assignee for the bug.=