From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Kevin P. Fleming" Subject: Weird SCSI error, can anyone interpret? Date: Wed, 03 Mar 2004 21:06:44 -0700 Sender: linux-scsi-owner@vger.kernel.org Message-ID: <4046AB54.9010909@backtobasicsmgmt.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from wsip-68-14-253-125.ph.ph.cox.net ([68.14.253.125]:20362 "EHLO office.labsysgrp.com") by vger.kernel.org with ESMTP id S261930AbUCDPOi (ORCPT ); Thu, 4 Mar 2004 10:14:38 -0500 Received: from [127.0.0.1] (helo=localhost) by office.labsysgrp.com with esmtp (Exim 4.24) id 1AyuYX-0003c0-Bv for linux-scsi@vger.kernel.org; Thu, 04 Mar 2004 08:14:37 -0700 Received: from office.labsysgrp.com ([127.0.0.1]) by localhost (office.lsg.internal [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 13293-05 for ; Thu, 4 Mar 2004 08:14:26 -0700 (MST) Received: from jeeves.kpf.internal ([192.168.170.1]) by office.labsysgrp.com with esmtp (Exim 4.24) id 1AyuYC-0003bP-Od for linux-scsi@vger.kernel.org; Thu, 04 Mar 2004 08:14:16 -0700 Received: from [192.168.172.107] (helo=backtobasicsmgmt.com) by jeeves.kpf.internal with esmtp (Exim 4.05) id 1Ayk86-00017m-00 for linux-scsi@vger.kernel.org; Wed, 03 Mar 2004 21:06:38 -0700 List-Id: linux-scsi@vger.kernel.org To: linux-scsi@vger.kernel.org I've got a client with a server running 2.6.3-rc2, using a QLogic ISP2100 connected to a CMD FC-to-SCSI RAID controller. On Saturday morning, the system lost access to the RAID array, with thousands of messages like these in the log: Feb 28 03:15:46 alpha kernel: SCSI error : <2 0 0 0> return code = 0x20000 Feb 28 03:15:46 alpha kernel: end_request: I/O error, dev sdc, sector 278362544 Feb 28 03:15:51 alpha kernel: SCSI error : <2 0 0 0> return code = 0x20000 Feb 28 03:15:51 alpha kernel: end_request: I/O error, dev sdc, sector 304356160 Feb 28 03:16:06 alpha kernel: SCSI error : <2 0 0 0> return code = 0x20000 Feb 28 03:16:06 alpha kernel: end_request: I/O error, dev sdc, sector 360710592 Feb 28 03:16:06 alpha kernel: SCSI error : <2 0 0 0> return code = 0x20000 Feb 28 03:16:06 alpha kernel: end_request: I/O error, dev sdc, sector 327384736 There are also some with "return code = 0x20008". Restarting the Linux system did not help; power cycling the RAID array did help. I'd like to get some clue as to whether this points to a problem with the RAID controller, the FC host adapter, or the kernel's QLogic driver. This system had been previously using the QLogic driver from SourceForge for months on a 2.6.0-pre(something) kernel, but recently got upgraded once the QLogic driver was merged into the main kernel distribution. Please CC me on any replies, I'm not subscribed to linux-scsi. Thanks!