From owner-freebsd-questions@FreeBSD.ORG Mon Aug 9 23:00:01 2010 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id B598D1065678 for ; Mon, 9 Aug 2010 23:00:01 +0000 (UTC) (envelope-from tim@techvalley.ca) Received: from mail.serversforless.ca (mail.serversforless.ca [66.199.130.120]) by mx1.freebsd.org (Postfix) with SMTP id 726848FC16 for ; Mon, 9 Aug 2010 23:00:01 +0000 (UTC) Received: (qmail 84118 invoked by uid 399); 9 Aug 2010 15:45:31 -0700 Received: from unknown (HELO agamemnon.techvalley.ca) (70.70.240.193) by mail.serversforless.ca with ESMTP; 9 Aug 2010 15:45:31 -0700 X-Originating-IP: 70.70.240.193 X-Mailer: QUALCOMM Windows Eudora Version 7.1.0.9 Date: Mon, 09 Aug 2010 15:45:26 -0700 To: freebsd-questions@freebsd.org From: Tim Baird Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Message-Id: <20100809230001.B598D1065678@hub.freebsd.org> Subject: ISTGT warnings X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 09 Aug 2010 23:00:01 -0000 What is the significance of this log warning? istgt_iscsi.c:4039:istgt_iscsi_transfer_out: ***WARNING*** pending_pdus > 0 I receive this warning very regularly. Source code was not commented unfortunately... There is no obvious association observed between the warning and iscsi load levels. Context: Using the Dell system below as a VM host. the Storage Array is acting as the iscsi target Hardware: Storage array: Adaptec 52445 SAS/SCSI card (512 MB cache) 16 Seagate ST31500341AS sata drives Asus P5BV mobo (LSI SAS/SATA turned off - using adaptec controller for iscsi targets via istgt) CPU: Intel(R) Core(TM)2 Quad CPU Q9400 @ 2.66GHz (2133.34-MHz K8-class CPU) 4 GB RAM Intel quad core cpu Intel Pro 1000 NIC - dual port configured with lagg loadbalancing VM host system: Dell Poweredge R300 Single Quad Core Intel(R) Xeon(R) CPU X3363 @ 2.83GHz 24 GB RAM Intel 82576 quad load balanced (in pairs) NIC regards tb