From owner-freebsd-bugs@FreeBSD.ORG Sat Oct 12 02:20:00 2013 Return-Path: Delivered-To: freebsd-bugs@smarthost.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 94CB94D3 for ; Sat, 12 Oct 2013 02:20:00 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:1900:2254:206c::16:87]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 726E821D5 for ; Sat, 12 Oct 2013 02:20:00 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.7/8.14.7) with ESMTP id r9C2K0hk069283 for ; Sat, 12 Oct 2013 02:20:00 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.7/8.14.7/Submit) id r9C2K0JQ069282; Sat, 12 Oct 2013 02:20:00 GMT (envelope-from gnats) Resent-Date: Sat, 12 Oct 2013 02:20:00 GMT Resent-Message-Id: <201310120220.r9C2K0JQ069282@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, sh1970 Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 2698537B for ; Sat, 12 Oct 2013 02:10:29 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from oldred.freebsd.org (oldred.freebsd.org [8.8.178.121]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 01D24219D for ; Sat, 12 Oct 2013 02:10:29 +0000 (UTC) Received: from oldred.freebsd.org ([127.0.1.6]) by oldred.freebsd.org (8.14.5/8.14.7) with ESMTP id r9C2AS19079358 for ; Sat, 12 Oct 2013 02:10:28 GMT (envelope-from nobody@oldred.freebsd.org) Received: (from nobody@localhost) by oldred.freebsd.org (8.14.5/8.14.5/Submit) id r9C2ASG3079338; Sat, 12 Oct 2013 02:10:28 GMT (envelope-from nobody) Message-Id: <201310120210.r9C2ASG3079338@oldred.freebsd.org> Date: Sat, 12 Oct 2013 02:10:28 GMT From: sh1970 To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Subject: kern/182917: strange out traffic with igb interfaces X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 12 Oct 2013 02:20:00 -0000 >Number: 182917 >Category: kern >Synopsis: strange out traffic with igb interfaces >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sat Oct 12 02:20:00 UTC 2013 >Closed-Date: >Last-Modified: >Originator: sh1970 >Release: freebsd 8.4 stable >Organization: >Environment: FreeBSD 8.4-STABLE FreeBSD 8.4-STABLE #0: Sun Aug 26 18:06:21 UTC 2012 root@:/usr/obj/usr/src/sys/GENERIC i386 >Description: We've got a strange problem with lagg(4) interfaces built on Intel's 82580 chipset igb (dual port 1Gb card). We cannot send over lagg interface more than ~1Gb/s, yet receiving ~2GB over it. Looks like something indicating the problem can be seen here: anri@host:[8:13]~#ifstat -i lagg0 -i igb1 -i igb3 1 lagg0 igb1 igb3 KB/s in KB/s out KB/s in KB/s out KB/s in KB/s out 9116.50 26515.16 4147.70 28871.43 5004.86 23683.31 8423.08 26544.62 3853.22 28980.60 4594.21 23520.97 8796.48 26395.28 4248.46 28344.00 4567.42 23978.17 Note (IN) traffic - everything's ok, about 50% on each igb interfaces and total summary on lagg0. But (OUT) traffic looks weird - there is more traffic on the single igb1 than on lagg0! Tried with default driver came with the system, also the new one igb-2.3.10 from Intel site - no luck. Set net.link.lagg.0.use_flowid=0 not solve the problem. Testing lagg interface built on other cards (em, bce) on the same machine shows expected normal behavior for both directions. >How-To-Repeat: >Fix: My system is freebsd 8.4, use the e1000 driver from freebsd 8.3 , the result is OK . >Release-Note: >Audit-Trail: >Unformatted: