From owner-freebsd-net@FreeBSD.ORG Wed Mar 19 19:41:41 2014 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 96EDEAB4 for ; Wed, 19 Mar 2014 19:41:41 +0000 (UTC) Received: from mail-qa0-x243.google.com (mail-qa0-x243.google.com [IPv6:2607:f8b0:400d:c00::243]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 5B5F1397 for ; Wed, 19 Mar 2014 19:41:41 +0000 (UTC) Received: by mail-qa0-f67.google.com with SMTP id w5so3004903qac.6 for ; Wed, 19 Mar 2014 12:41:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=tvvy/uIyvwQ1cE2Y91HlbNbO7CXKHsr12ooQpw7oTus=; b=YmfIHzS0NVfhGRe3MUYqCG6RXNV1rUuQTM4lcztvJ+1zgiQ2ekwlXMwa/7I7qKLWdU 88YyE7VhtJivoIQ2GVdZO9vUaHh3UWm6vToviPeyfRq+alMm4slMKnI2yE9Gjr42TVcz 8kufm40amD8c+EBDONqBEWlGAk1CjcjPppfC8r9jnLCNZacLBjbkdQuOJNE8fl5o2iH6 PVvxSlv9yMBKygz9Pb4E0lVcLlDRNh88VP4ZZcSZGWZnuiXdCVAL5tT5nQfZL90qx01H k8oUHEcuudqo8cae3aOdoi9Gr1HHS6CWaZA6a1DPVnzDK06HnZjYpYSSFwgSUoxwNRml Wfaw== MIME-Version: 1.0 X-Received: by 10.224.172.133 with SMTP id l5mr46229488qaz.25.1395258100596; Wed, 19 Mar 2014 12:41:40 -0700 (PDT) Received: by 10.96.79.97 with HTTP; Wed, 19 Mar 2014 12:41:40 -0700 (PDT) Date: Wed, 19 Mar 2014 16:41:40 -0300 Message-ID: Subject: 9.2 ixgbe tx queue hang From: Christopher Forgeron To: freebsd-net@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.17 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 Mar 2014 19:41:41 -0000 (Sorry for the formatting on that last message, that was weird) Today I wanted to test the assertion that this is a NFS issue, since we all seem to be running NFS. I shut down my NFS daemon in rc.conf, configured the FreeBSD10 iSCSI ctld, rebooted, and then ran all my tests exclusively from the iSCSI connection to my FreeBSD-10 box. The only other thing I had active on the FreeBSD-10 box was a flood-ping so I could see if/when the problem occurred. I still had the problem. It triggered around 40 min into my iometer benchmark. Continued sporadically for a while, then settled down and didn't give me problems. That error behaviour isn't abnormal - I really need to push the SAN to put it's network into a 'dead and not coming back' mode. Any thoughts?