Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756727Ab3D2P0p (ORCPT ); Mon, 29 Apr 2013 11:26:45 -0400 Received: from Chamillionaire.breakpoint.cc ([80.244.247.6]:54796 "EHLO Chamillionaire.breakpoint.cc" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753464Ab3D2P0o (ORCPT ); Mon, 29 Apr 2013 11:26:44 -0400 Date: Mon, 29 Apr 2013 17:26:39 +0200 From: Florian Westphal To: linux-scsi@vger.kernel.org Cc: linux-kernel@vger.kernel.org, martin.petersen@oracle.com, axboe@kernel.dk Subject: "WRITE SAME failed. Manually zeroing" with 3w-xxxx driver Message-ID: <20130429152639.GG32324@breakpoint.cc> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1099 Lines: 25 After update to 3.8 dmesg is spammed with: kernel: [ 280.272094] 3w-xxxx: scsi8: Unknown scsi opcode: 0x41 kernel: [ 280.272107] sd 8:0:0:0: [sda] Unhandled error code kernel: [ 280.272110] sd 8:0:0:0: [sda] kernel: [ 280.272112] Result: hostbyte=0x04 driverbyte=0x00 kernel: [ 280.272114] sd 8:0:0:0: [sda] CDB: kernel: [ 280.272116] cdb[0]=0x41: 41 00 10 09 aa 22 00 00 08 00 kernel: [ 280.272123] end_request: I/O error, dev sda, sector 269068834 kernel: [ 280.272130] sda6: WRITE SAME failed. Manually zeroing. [..] This goes on and on. I am not familiar with block layer or scsi drivers, so I don't know if this is an issue with the 3w-xxxx driver or the block layer. I've hacked around this by reverting "block: Make blkdev_issue_zeroout use WRITE SAME" (579e8f3c7b2ecf7db91398d942d76457a3ddba21), as this hw doesn't support write_same anyway. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/