From owner-freebsd-bugs@freebsd.org Fri Nov 20 10:21:18 2020 Return-Path: Delivered-To: freebsd-bugs@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id D09032C49DE for ; Fri, 20 Nov 2020 10:21:18 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.nyi.freebsd.org (mailman.nyi.freebsd.org [IPv6:2610:1c1:1:606c::50:13]) by mx1.freebsd.org (Postfix) with ESMTP id 4Ccsyk5M9wz4rlj for ; Fri, 20 Nov 2020 10:21:18 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id B7DA92C4466; Fri, 20 Nov 2020 10:21:18 +0000 (UTC) Delivered-To: bugs@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id B79E42C49DD for ; Fri, 20 Nov 2020 10:21:18 +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 "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4Ccsyk4lbhz4rcr for ; Fri, 20 Nov 2020 10:21:18 +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 9606414953 for ; Fri, 20 Nov 2020 10:21:18 +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 0AKALIKm031373 for ; Fri, 20 Nov 2020 10:21:18 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 0AKALIPb031372 for bugs@FreeBSD.org; Fri, 20 Nov 2020 10:21:18 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 251267] iflib/em Intel I217-LM NIC: sporadic connection loss 12-STABLE Date: Fri, 20 Nov 2020 10:21:18 +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: Unspecified X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: ohartmann@walstatt.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status 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-bugs@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 20 Nov 2020 10:21:18 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D251267 Bug ID: 251267 Summary: iflib/em Intel I217-LM NIC: sporadic connection loss 12-STABLE Product: Base System Version: Unspecified Hardware: Any OS: Any Status: New Severity: Affects Many People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: ohartmann@walstatt.org OS: FreeBSD 12.2-STABLE #56 r367863: Fri Nov 20 08:12:33 CET 2020 amd64 The box in question is a Fujitsu Celsius M750 system, dated 2015. Since the first occurence of iflib() in FreeBSD and the related new design, this spec= ific chipset seems to have massive problems keeping up a connection open via ssh. Since then, the problem is present up to this day. We swapped all NICs of t= hat type, if possible, with dedicated NIC boards carrying two i350 ports (igb) = and the problem has been mitigated so far (still sporadic connection losses, but very rare).=20 For a reference, we used also some Xubunto hosts with 20.04 LTS on the same= box connectiong to the very same hosts and thoese connections were rock stable = and lasted days. Even connections with the igb/i350 chipsets lasted sometimes f= or days, but not i217-LM. Below some hardware specific informations for the i217-LM: pciconf -lvbc: em0@pci0:0:25:0: class=3D0x020000 card=3D0x11ed1734 chip=3D0x153a808= 6 rev=3D0x05 hdr=3D0x00 vendor =3D 'Intel Corporation' device =3D 'Ethernet Connection I217-LM' class =3D network subclass =3D ethernet bar [10] =3D type Memory, range 32, base 0xfb400000, size 131072, ena= bled bar [14] =3D type Memory, range 32, base 0xfb439000, size 4096, enabl= ed bar [18] =3D type I/O Port, range 32, base 0xf020, size 32, enabled cap 01[c8] =3D powerspec 2 supports D0 D3 current D0 cap 05[d0] =3D MSI supports 1 message, 64 bit enabled with 1 message cap 13[e0] =3D PCI Advanced Features: FLR TP dmesg extract: pci1: at device 22.0 (no driver attached) em0: port 0xf020-0xf03f mem 0xfb400000-0xfb41ffff,0xfb439000-0xfb439fff at device 25.0 numa-domain 0 on pci1 em0: Using 1024 TX descriptors and 1024 RX descriptors em0: Using an MSI interrupt em0: Ethernet address: XXXX em0: netmap queues/slots: TX 1/1024, RX 1/1024 and ifconfig: em0: flags=3D8843 metric 0 mtu 1500 =20=20=20=20=20=20=20 options=3D81249b ether xx:xx:xx:xx:xx:xx inet 192.168.0.2 netmask 0xffffff00 broadcast 192.168.0.255 inet6 fe80::xxxx:eff:xxxx:xxxx%em00 prefixlen 64 scopeid 0x1 inet6 fd60:b403:101::233 prefixlen 64 media: Ethernet autoselect (1000baseT ) status: active nd6 options=3D61 --=20 You are receiving this mail because: You are the assignee for the bug.=