From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Mueller Subject: Re: mvsas: blocked task on writing to tape Date: Thu, 19 Aug 2010 19:41:09 +0200 Message-ID: <4C6D6CB5.5030806@chaschperli.ch> References: <6B62480106F2B34D8404CF2FDAA4D9EF96D9C4CBFF@CHN-HCLT-EVS06.HCLT.CORP.HCL.IN> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from trillian.muellerit.ch ([83.169.22.129]:46242 "EHLO trillian.muellerit.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754249Ab0HSRrp (ORCPT ); Thu, 19 Aug 2010 13:47:45 -0400 In-Reply-To: <6B62480106F2B34D8404CF2FDAA4D9EF96D9C4CBFF@CHN-HCLT-EVS06.HCLT.CORP.HCL.IN> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: "Srinivas Naga Venkatasatya Pasagadugula - ERS, HCL Tech" Cc: "linux-scsi@vger.kernel.org" , "Geetha Gopalan, ERS-HCLTech" On 19.08.2010 17:40, Srinivas Naga Venkatasatya Pasagadugula - ERS, HCL Tech wrote: > Hi Thomas, > Need below information. > 1. Dmesg or /var/log/messages partial output from dmesg from 2.6.35.2 kernel -> see my last mail. have no access to the system anymore today. can provide more tomorrow. > 2. Which kernel version you are using? 2.6.32-bpo.4-amd64 (debian pacakge, IMHO 2.6.32.11 with debian patches) is OK 2.6.32-bpo.5-amd64 (debian package, IMHO 2.6.32.15 with debian patches) is NOT OK 2.6.34-1-amd64 (debian package) is NOT OK 2.6.35.2 (compiled from kernel.org source) is NOT OK > 3. Are you running any applications? as i told i was writing to a tape with btape (Bacula tape test tool, btape command "speed file_size=50"). It was writing the 4th file (50gb per file) when it stopped working > 4. Whether tape drive is discovered or not? As I was working with this same drive only. I never faced any problem with this drive. see answer 3. i suspect the the SAS card (mvsas) not the drive to be the problem. > 5. Check whether this is working with 2.6.33 kernels or not? no 2.6.33 kernel handy yet, could compile one tomorrow. - Thomas