From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@bugzilla.kernel.org Subject: [Bug 13594] SMART responses for SATA disks on SAS get interpreted as errors Date: Sun, 21 Jun 2009 18:48:00 GMT Message-ID: <200906211848.n5LIm0oJ023534@demeter.kernel.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from demeter.kernel.org ([140.211.167.39]:36758 "EHLO demeter.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753352AbZFUSr5 convert rfc822-to-8bit (ORCPT ); Sun, 21 Jun 2009 14:47:57 -0400 Received: from demeter.kernel.org (localhost.localdomain [127.0.0.1]) by demeter.kernel.org (8.14.2/8.14.2) with ESMTP id n5LIm0OI023535 for ; Sun, 21 Jun 2009 18:48:00 GMT In-Reply-To: Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: linux-scsi@vger.kernel.org http://bugzilla.kernel.org/show_bug.cgi?id=3D13594 --- Comment #1 from Anonymous Emailer = 2009-06-21 18:47:59 --- Reply-To: James.Bottomley@HansenPartnership.com On Sun, 2009-06-21 at 17:26 +0000, bugzilla-daemon@bugzilla.kernel.org wrote: > http://bugzilla.kernel.org/show_bug.cgi?id=3D13594 >=20 > Summary: SMART responses for SATA disks on SAS get interpr= eted > as errors > Product: IO/Storage > Version: 2.5 > Kernel Version: 2.6.30-rc6 > Platform: All > OS/Version: Linux > Tree: Mainline > Status: NEW > Severity: normal > Priority: P1 > Component: SCSI > AssignedTo: linux-scsi@vger.kernel.org > ReportedBy: sgunderson@bigfoot.com > Regression: No >=20 >=20 > Hi, >=20 > I just bought a LSI SAS3081E-R which I use against a Supermicro backp= lane to > drive ten Seagate SATA disks (7200.11, 750GB and 1.5GB). I'm using th= e > standard Linux Fusion MPT device driver (CONFIG_FUSION_SAS) under Lin= ux > 2.6.30-rc6. Everything seems to work pretty well, with one exception:= When I > use SMART against the drives (say, smartctl -a /dev/sda) the kernel c= omplains > with: >=20 > [ 811.091916] sd 0:0:0:0: [sda] Sense Key : Recovered Error [curre= nt] > [descriptor] > [ 811.099807] Descriptor sense data with sense descriptors (in hex= ): > [ 811.106175] 72 01 00 1d 00 00 00 0e 09 0c 00 00 00 00 00= 00 > [ 811.113262] 00 4f 00 c2 00 50 > [ 811.117379] sd 0:0:0:0: [sda] Add. Sense: ATA pass through infor= mation > available This is a message the kernel prints out on all recovered error returns (except those marked REQ_QUIET). It's purely informational and doesn't affect return processing of the command at all, so the kernel is actually treating this as a successful completion not an error. > I've tried upgrading to the newest firmware (1.28.02.00, 05-MAY-2009)= , but > all that changed is that the hex dump was added to the error message. >=20 > Whenever this happens, it appears like all the disks =E2=80=9Chiccup=E2= =80=9D and the kernel > loses contact with the controller for a small while. If too many of t= hese > happen at once, eventually disks start falling off RAIDs, and the ent= ire > machine goes down. It looks to me as if these messages should simply = not be > treated as errors by the kernel -- smartctl explicitly asks for a res= ponse even > if the command doesn't fail (by setting CK_COND), so the response pro= bably > shouldn't be taken as an error. So this sounds like the bug ... however, for the LSI card, this bug wil= l be in the SAT layer in the fusion firmware. I can shut the kernel up b= y making the recovered error processing clause look for 01/00/1D as well as REQ_QUIET, but it won't affect this problem. James --=20 Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=3Demail ------- You are receiving this mail because: ------- You are the assignee for the bug.-- To unsubscribe from this list: send the line "unsubscribe linux-scsi" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html