From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp.codeaurora.org by pdx-caf-mail.web.codeaurora.org (Dovecot) with LMTP id FjGFLvpSHFsLRwAAmS7hNA ; Sat, 09 Jun 2018 22:21:46 +0000 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id A4B24607E4; Sat, 9 Jun 2018 22:21:46 +0000 (UTC) Authentication-Results: smtp.codeaurora.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="V6gt+iH5" X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on pdx-caf-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, MAILING_LIST_MULTI,T_DKIM_INVALID autolearn=ham autolearn_force=no version=3.4.0 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by smtp.codeaurora.org (Postfix) with ESMTP id F09D66074D; Sat, 9 Jun 2018 22:21:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org F09D66074D Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753502AbeFIWVn (ORCPT + 25 others); Sat, 9 Jun 2018 18:21:43 -0400 Received: from merlin.infradead.org ([205.233.59.134]:47032 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753408AbeFIWVm (ORCPT ); Sat, 9 Jun 2018 18:21:42 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=Content-Transfer-Encoding:Content-Type: In-Reply-To:MIME-Version:Date:Message-ID:From:References:To:Subject:Sender: Reply-To:Cc:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=dNWsNu+y+2k76ZV+YNGHk7bOipWyYiS/Fj5iIaQ5QKs=; b=V6gt+iH5/vTduuAFCu64fDbJRw XRy/3joPEt2Mt5t3PgthRhWl18pR54vJpo00JRhkSzRyY6dNqW8mizN3xmz3ChWU/Fmrnwe3HZ5Rq 74zM2vhk8Q66aYiNj3apXD0DC0lb20RfXwmSr6ABfDkTY8CREtL7lCa9DZZ3KyKbZyJRQJpJt4o9V 0gQMx91lG8vEjzCT9E8BMshNUFy1UTMapS65vm6s4YYvsXoaY/A/EJZyIrGqfpzT+4AXSmKh0oLTV nzPhJ4WHD9Q+4aT+8L4mpUYj+mID7pBV2XOa8U7oCCEcJ4SA6gjFd+WKQZVua+gFTToTCOG+JQ9ac J7PeFHhw==; Received: from static-50-53-52-16.bvtn.or.frontiernet.net ([50.53.52.16] helo=midway.dunlab) by merlin.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1fRmEu-0006s4-Dy; Sat, 09 Jun 2018 22:21:40 +0000 Subject: Re: sd 6:0:0:0: [sdb] Unaligned partial completion (resid=12, sector_sz=512) To: Christoph Anton Mitterer , linux-kernel@vger.kernel.org, linux-scsi References: From: Randy Dunlap Message-ID: Date: Sat, 9 Jun 2018 15:21:35 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org [adding linux-scsi mailing list] On 06/09/2018 12:23 PM, Christoph Anton Mitterer wrote: > Hey. > > I'm seeing these errors: > Jun 09 21:13:22 heisenberg kernel: sd 6:0:0:0: [sdb] Unaligned partial completion (resid=16, sector_sz=512) > Jun 09 21:13:22 heisenberg kernel: sd 6:0:0:0: [sdb] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE > Jun 09 21:13:22 heisenberg kernel: sd 6:0:0:0: [sdb] tag#0 Sense Key : Medium Error [current] > Jun 09 21:13:22 heisenberg kernel: sd 6:0:0:0: [sdb] tag#0 Add. Sense: Unrecovered read error > Jun 09 21:13:22 heisenberg kernel: sd 6:0:0:0: [sdb] tag#0 CDB: Read(16) 88 00 00 00 00 01 cd e6 de 40 00 00 00 e0 00 00 > Jun 09 21:13:22 heisenberg kernel: print_req_error: critical medium error, dev sdb, sector 7749426752 > Jun 09 21:13:31 heisenberg kernel: sd 6:0:0:0: [sdb] Unaligned partial completion (resid=12, sector_sz=512) > Jun 09 21:13:31 heisenberg kernel: sd 6:0:0:0: [sdb] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE > Jun 09 21:13:31 heisenberg kernel: sd 6:0:0:0: [sdb] tag#0 Sense Key : Medium Error [current] > Jun 09 21:13:31 heisenberg kernel: sd 6:0:0:0: [sdb] tag#0 Add. Sense: Unrecovered read error > Jun 09 21:13:31 heisenberg kernel: sd 6:0:0:0: [sdb] tag#0 CDB: Read(16) 88 00 00 00 00 00 00 14 59 60 00 00 01 00 00 00 > Jun 09 21:13:31 heisenberg kernel: print_req_error: critical medium error, dev sdb, sector 1333600 > Jun 09 21:13:53 heisenberg kernel: sd 6:0:0:0: [sdb] Unaligned partial completion (resid=12, sector_sz=512) > Jun 09 21:13:53 heisenberg kernel: sd 6:0:0:0: [sdb] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE > Jun 09 21:13:53 heisenberg kernel: sd 6:0:0:0: [sdb] tag#0 Sense Key : Medium Error [current] > Jun 09 21:13:53 heisenberg kernel: sd 6:0:0:0: [sdb] tag#0 Add. Sense: Unrecovered read error > Jun 09 21:13:53 heisenberg kernel: sd 6:0:0:0: [sdb] tag#0 CDB: Read(16) 88 00 00 00 00 00 c3 a2 56 80 00 00 01 00 00 00 > Jun 09 21:13:53 heisenberg kernel: print_req_error: critical medium error, dev sdb, sector 3282196096 > > (many of them) on a Seagate 8TB Archive HDD. > The disk is only a year old and barely used (since it's just one of the > backups of my main data disks - and the primary disk another Seagate > 8TB HDD broke just few days ago). > > I have connected them via USB/SATA bridge... and when I now started > copying from the backup (which is sdb) to a fresh HDD I started seeing > vast numbers of these errors. > > However, fsck, cp seem to do fine, and the data (as far as it has been > copied) seems good (I have sha512 sums of all of it). > > > Any ideas what "Unaligned partial completion" and these errors mean? > > > Thanks, > Chris. > -- ~Randy