From owner-freebsd-net@freebsd.org Thu Oct 1 15:44:31 2015 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 4B67DA0D4D5 for ; Thu, 1 Oct 2015 15:44:31 +0000 (UTC) (envelope-from daemon-user@freebsd.org) Received: from phabric-backend.isc.freebsd.org (phabric-backend.isc.freebsd.org [IPv6:2001:4f8:3:ffe0:406a:0:50:2]) by mx1.freebsd.org (Postfix) with ESMTP id 36C4412D8 for ; Thu, 1 Oct 2015 15:44:31 +0000 (UTC) (envelope-from daemon-user@freebsd.org) Received: by phabric-backend.isc.freebsd.org (Postfix, from userid 1346) id 32F2D331F8C8; Thu, 1 Oct 2015 15:44:31 +0000 (UTC) Date: Thu, 1 Oct 2015 15:44:31 +0000 To: freebsd-net@freebsd.org From: "sbruno (Sean Bruno)" Reply-to: D1986+325+381818416dc12ca2@reviews.freebsd.org Subject: [Differential] [Commented On] D1986: Teach lagg(4) to change MTU Message-ID: X-Priority: 3 X-Phabricator-Sent-This-Message: Yes X-Mail-Transport-Agent: MetaMTA X-Auto-Response-Suppress: All X-Phabricator-Mail-Tags: , Thread-Topic: D1986: Teach lagg(4) to change MTU X-Herald-Rules: none X-Phabricator-To: X-Phabricator-To: X-Phabricator-Cc: X-Phabricator-Cc: X-Phabricator-Cc: X-Phabricator-Cc: X-Phabricator-Cc: Precedence: bulk In-Reply-To: References: Thread-Index: ODZhMzNlYThiYzMxOTgzYmRhMDE5M2Q2Yzk4IFYNVN8= MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="utf-8" X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.20 List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Oct 2015 15:44:31 -0000 sbruno added a subscriber: sbruno. sbruno added a comment. In https://reviews.freebsd.org/D1986#77466, @lakshmi.n_msystechnologies.com wrote: > We (Panasas) tried reproducing the problem by applying the patch and enabled WITNESS in freebsd stable (10.1) kernel. > While testing with this patched kernel, LOR not observed on ixl and igb ports. > > Based on the LOR logs mentioned earlier, the issue seems to be observed on device specific driver like em (e1000). > We tried doing code analysis on em driver and could not find anything obvious. Our platform do not use em driver anymore. > > The issue seems to be on device specific driver and not the lagg driver changes that we introduced. > So, we kindly request you to accept these changes to mainline. lem_ioctl() at lem_ioctl+0x3e8/frame 0xfffffe00003f87e0 This actually means sys/dev/e1000/if_lem.c ... I'll take a look at the LOR and see if its fixable. REPOSITORY rS FreeBSD src repository REVISION DETAIL https://reviews.freebsd.org/D1986 EMAIL PREFERENCES https://reviews.freebsd.org/settings/panel/emailpreferences/ To: rpokala-panasas.com, rstone Cc: sbruno, lakshmi.n_msystechnologies.com, emaste, ae, freebsd-net-list