From owner-freebsd-bugs@FreeBSD.ORG Fri Feb 25 14:10:11 2011 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 40FFD106566B for ; Fri, 25 Feb 2011 14:10:11 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id 0138E8FC27 for ; Fri, 25 Feb 2011 14:10:11 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.4/8.14.4) with ESMTP id p1PEAAb1001303 for ; Fri, 25 Feb 2011 14:10:10 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.4/8.14.4/Submit) id p1PEAA3J001302; Fri, 25 Feb 2011 14:10:10 GMT (envelope-from gnats) Resent-Date: Fri, 25 Feb 2011 14:10:10 GMT Resent-Message-Id: <201102251410.p1PEAA3J001302@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, Martin Matuska Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 1A05D106564A for ; Fri, 25 Feb 2011 14:05:00 +0000 (UTC) (envelope-from mm@mail2.vx.sk) Received: from mail2.vx.sk (mail2.vx.sk [IPv6:2a01:4f8:100:84a3::3]) by mx1.freebsd.org (Postfix) with ESMTP id A3D698FC18 for ; Fri, 25 Feb 2011 14:04:59 +0000 (UTC) Received: from neo.vx.sk (localhost [127.0.0.1]) by mail2.vx.sk (Postfix) with ESMTP id CD2F7EFB46 for ; Fri, 25 Feb 2011 15:04:58 +0100 (CET) Received: from mail2.vx.sk ([127.0.0.1]) by neo.vx.sk (mail.vx.sk [127.0.0.1]) (amavisd-new, port 10024) with LMTP id HZ0Blz9rNlOs for ; Fri, 25 Feb 2011 15:04:47 +0100 (CET) Received: by mail2.vx.sk (Postfix, from userid 1001) id 476DCEFB39; Fri, 25 Feb 2011 15:04:47 +0100 (CET) Message-Id: <20110225140447.476DCEFB39@mail2.vx.sk> Date: Fri, 25 Feb 2011 15:04:47 +0100 (CET) From: Martin Matuska To: FreeBSD-gnats-submit@FreeBSD.org X-Send-Pr-Version: 3.113 Cc: Subject: kern/155030: igb(4) DEVICE_POLLING does not work with carp(4) X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Martin Matuska List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 25 Feb 2011 14:10:11 -0000 >Number: 155030 >Category: kern >Synopsis: igb(4) DEVICE_POLLING does not work with carp(4) >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: Fri Feb 25 14:10:10 UTC 2011 >Closed-Date: >Last-Modified: >Originator: Martin Matuska >Release: FreeBSD 8.2-RELEASE amd64 >Organization: VX Solutions s. r. o. >Environment: >Description: We are using two redundant load-balancing firewall servers with 4-core Xeon processors and 2x 4-port igb(4) interfaces using carp(4) for IP failover. When DEVICE_POLLING is enabled on the igb(4) interfaces, traffic on these interfaces stops. After disabling it again traffic continues normally as before. The traffic throughput on the desired interface is 100-400 MBit/s. The CPU load is about 3 (=75%) because of network interrupts. dev.igb.0.%desc: Intel(R) PRO/1000 Network Connection version - 2.0.7 dev.igb.0.%driver: igb dev.igb.0.%location: slot=0 function=0 dev.igb.0.%pnpinfo: vendor=0x8086 device=0x10e8 subvendor=0x8086 subdevice=0xa02c class=0x020000 A similar issue was already reported in freebsd-stable mailing list: http://lists.freebsd.org/pipermail/freebsd-stable/2011-January/061259.html >How-To-Repeat: >Fix: >Release-Note: >Audit-Trail: >Unformatted: