From owner-freebsd-bugs@freebsd.org Thu Jan 17 21:13:10 2019 Return-Path: Delivered-To: freebsd-bugs@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 604DD14A71A3 for ; Thu, 17 Jan 2019 21:13:10 +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 E74E18492E for ; Thu, 17 Jan 2019 21:13:09 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id AAD0014A71A2; Thu, 17 Jan 2019 21:13:09 +0000 (UTC) Delivered-To: bugs@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 6FE6B14A71A1 for ; Thu, 17 Jan 2019 21:13:09 +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 E7D718492A for ; Thu, 17 Jan 2019 21:13:08 +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 1891417339 for ; Thu, 17 Jan 2019 21:13:08 +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 x0HLD7iI006834 for ; Thu, 17 Jan 2019 21:13:07 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id x0HLD7A6006817 for bugs@FreeBSD.org; Thu, 17 Jan 2019 21:13:07 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: bugs@FreeBSD.org Subject: [Bug 235031] [em] em0: poor NFS performance, strange behavior Date: Thu, 17 Jan 2019 21:13:08 +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: 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: bugs@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-bugs@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 17 Jan 2019 21:13:10 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D235031 --- Comment #2 from Martin Birgmeier --- Another scenario =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D Just for experimenting, I issued the following commands: ifconfig em0 -rxcsum .............. result: connectivity to other machines = lost for existing connections (TCP and UDP), new connections can be established ifconfig em0 rxcsum ............... result: same ifconfig em0 down ................. result: same ifocnfig em0 up ................... result: same In addition, these actions resulted in the following message being repeated= on the console every few seconds: TX(0) desc avail =3D 1024, pidx =3D 0 I had to reboot the machine to get it working normally again. [0]# grep em0 /var/log/messages ... Jan 17 21:29:18 mizar kernel: em0: link state changed to DOWN Jan 17 21:29:20 mizar kernel: em0: TX(0) desc avail =3D 1024, pidx =3D 0 Jan 17 21:30:02 mizar kernel: em0: TX(0) desc avail =3D 1024, pidx =3D 0 Jan 17 21:36:14 mizar kernel: em0: TX(0) desc avail =3D 1024, pidx =3D 0 Jan 17 21:36:22 mizar kernel: em0: TX(0) desc avail =3D 1024, pidx =3D 0 Jan 17 21:36:25 mizar kernel: em0: TX(0) desc avail =3D 1024, pidx =3D 0 Jan 17 21:36:28 mizar kernel: em0: TX(0) desc avail =3D 1024, pidx =3D 0 Jan 17 21:36:31 mizar kernel: em0: TX(0) desc avail =3D 1024, pidx =3D 0 Jan 17 21:37:59 mizar kernel: Syncing disks, vnodes remaining... 11 12 em0: TX(0) desc avail =3D 1024, pidx =3D 0 Jan 17 21:37:59 mizar kernel: 8 8 em0: TX(0) desc avail =3D 1024, pidx =3D 0 Jan 17 21:37:59 mizar kernel: 8 8 8 em0: TX(0) desc avail =3D 1024, pidx = =3D 0 Jan 17 21:37:59 mizar kernel: 8 2 2 em0: TX(0) desc avail =3D 1024, pidx = =3D 0 Jan 17 21:37:59 mizar kernel: 1 0 0 em0: TX(0) desc avail =3D 1024, pidx = =3D 0 Jan 17 21:37:59 mizar kernel: 0 0 0 em0: TX(0) desc avail =3D 1024, pidx = =3D 0 Jan 17 21:37:59 mizar kernel: Waiting (max 60 seconds) for system thread `bufspacedaemon-0' to stop... em0: TX(0) desc avail =3D 1024, pidx =3D 0 Jan 17 21:37:59 mizar kernel: Waiting (max 60 seconds) for system thread `bufspacedaemon-6' to stop... em0: TX(0) desc avail =3D 1024, pidx =3D 0 Jan 17 21:37:59 mizar kernel: em0: p= ort 0x6040-0x605f mem 0xd5300000-0xd531ffff,0xd532b000-0xd532bfff irq 20 at dev= ice 25.0 on pci0 Jan 17 21:37:59 mizar kernel: em0: attach_pre capping queues at 1 Jan 17 21:37:59 mizar kernel: em0: using 1024 tx descriptors and 1024 rx descriptors Jan 17 21:37:59 mizar kernel: em0: msix_init qsets capped at 1 Jan 17 21:37:59 mizar kernel: em0: Unable to map MSIX table=20 Jan 17 21:37:59 mizar kernel: em0: Using an MSI interrupt Jan 17 21:37:59 mizar kernel: em0: allocated for 1 tx_queues Jan 17 21:37:59 mizar kernel: em0: allocated for 1 rx_queues Jan 17 21:37:59 mizar kernel: em0: Ethernet address: f0:de:f1:98:86:a9 Jan 17 21:37:59 mizar kernel: em0: link state changed to UP [0]# --=20 You are receiving this mail because: You are the assignee for the bug.=