From owner-freebsd-net@freebsd.org Sun Jan 20 09:04:21 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 901FD14ABA68 for ; Sun, 20 Jan 2019 09:04:21 +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 2A3378D17B for ; Sun, 20 Jan 2019 09:04:21 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id DB85214ABA67; Sun, 20 Jan 2019 09:04:20 +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 B915214ABA66 for ; Sun, 20 Jan 2019 09:04:20 +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 565CC8D177 for ; Sun, 20 Jan 2019 09:04:20 +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 79CA818351 for ; Sun, 20 Jan 2019 09:04:19 +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 x0K94JEV054015 for ; Sun, 20 Jan 2019 09:04:19 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id x0K94Jeh054007 for net@FreeBSD.org; Sun, 20 Jan 2019 09:04:19 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 235031] [em] em0: poor NFS performance, strange behavior Date: Sun, 20 Jan 2019 09:04:18 +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: 12.0-RELEASE X-Bugzilla-Keywords: IntelNetworking, regression X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: d8zNeCFG@aon.at X-Bugzilla-Status: New 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 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: Sun, 20 Jan 2019 09:04:21 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D235031 --- Comment #17 from Martin Birgmeier --- Because bug #234550 might be related to this one, I tried to issue "ifconfig -lro em0". This resulted in the interface not working anymore, with the alr= eady known syslog messages: Jan 20 09:29:18 mizar kernel: em0: link state changed to DOWN Jan 20 09:29:20 mizar kernel: em0: TX(0) desc avail =3D 1024, pidx =3D 0 Jan 20 09:34:36 mizar kernel: em0: TX(0) desc avail =3D 1024, pidx =3D 0 Jan 20 09:34:42 mizar kernel: em0: TX(0) desc avail =3D 1024, pidx =3D 0 Jan 20 09:34:51 mizar kernel: em0: TX(0) desc avail =3D 1024, pidx =3D 0 Jan 20 09:34:54 mizar kernel: em0: TX(0) desc avail =3D 1024, pidx =3D 0 None of the following commands (from the shell history) helped: 4981 2019-01-20 09:29 0:01 ifconfig em0 -lro 4982 2019-01-20 09:29 0:00 ifconfig em0 up 4985 2019-01-20 09:30 0:00 ifconfig em0 4987 2019-01-20 09:30 0:03 ifconfig em0 lro up 4989 2019-01-20 09:31 0:00 ifconfig em0 4990 2019-01-20 09:32 0:00 ifconfig em0 down 4991 2019-01-20 09:32 0:02 ifconfig em0 up 4999 2019-01-20 09:40 0:00 ifconfig em0 Then I tried adding "-lro" in rc.conf: ifconfig_em0=3D"-lro inet $hostname" This resulted in a rather long wait for the interface to be available to so= me rc processes. When the machine was finally up, NFS to it did not work at al= l, it just hung. I removed the -lro flag again. What is the issue that using ifconfig on this interface breaks it? -- Martin --=20 You are receiving this mail because: You are the assignee for the bug.=