From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753271AbXLAL0X (ORCPT ); Sat, 1 Dec 2007 06:26:23 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751786AbXLAL0L (ORCPT ); Sat, 1 Dec 2007 06:26:11 -0500 Received: from lucidpixels.com ([75.144.35.66]:36800 "EHLO lucidpixels.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751624AbXLAL0J (ORCPT ); Sat, 1 Dec 2007 06:26:09 -0500 Date: Sat, 1 Dec 2007 06:26:08 -0500 (EST) From: Justin Piszcz X-X-Sender: jpiszcz@p34.internal.lan To: linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org, linux-ide@vger.kernel.org cc: apiszcz@solarrain.com Subject: Kernel 2.6.23.9 / P35 Chipset + WD 750GB Drives (reset port) Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I am putting a new machine together and I have dual raptor raid 1 for the root, which works just fine under all stress tests. Then I have the WD 750 GiB drive (not RE2, desktop ones for ~150-160 on sale now adays): I ran the following: dd if=/dev/zero of=/dev/sdc dd if=/dev/zero of=/dev/sdd dd if=/dev/zero of=/dev/sde (as it is always a very good idea to do this with any new disk) And sometime along the way(?) (i had gone to sleep and let it run), this occurred: [42880.680144] ata3.00: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0x2 frozen [42880.680231] ata3.00: irq_stat 0x00400040, connection status changed [42880.680290] ata3.00: cmd ec/00:00:00:00:00/00:00:00:00:00/00 tag 0 cdb 0x0 data 512 in [42880.680292] res 40/00:ac:d8:64:54/00:00:57:00:00/40 Emask 0x10 (ATA bus error) [42881.841899] ata3: soft resetting port [42885.966320] ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 300) [42915.919042] ata3.00: qc timeout (cmd 0xec) [42915.919094] ata3.00: failed to IDENTIFY (I/O error, err_mask=0x5) [42915.919149] ata3.00: revalidation failed (errno=-5) [42915.919206] ata3: failed to recover some devices, retrying in 5 secs [42920.912458] ata3: hard resetting port [42926.411363] ata3: port is slow to respond, please be patient (Status 0x80) [42930.943080] ata3: COMRESET failed (errno=-16) [42930.943130] ata3: hard resetting port [42931.399628] ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 300) [42931.413523] ata3.00: configured for UDMA/133 [42931.413586] ata3: EH pending after completion, repeating EH (cnt=4) [42931.413655] ata3: EH complete [42931.413719] sd 2:0:0:0: [sdc] 1465149168 512-byte hardware sectors (750156 MB) [42931.413809] sd 2:0:0:0: [sdc] Write Protect is off [42931.413856] sd 2:0:0:0: [sdc] Mode Sense: 00 3a 00 00 [42931.413867] sd 2:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA Usually when I see this sort of thing with another box I have full of raptors, it was due to a bad raptor and I never saw it again after I replaced the disk that it happened on, but that was using the Intel P965 chipset. For this board, it is a Gigabyte GSP-P35-DS4 (Rev 2.0) and I have all of the drives (2 raptors, 3 750s connected to the Intel ICH9 Southbridge). I am going to do some further testing but does this indicate a bad drive? Bad cable? Bad connector? As you can see above, /dev/sdc stopped responding for a little bit and then the kernel reset the port. Why is this though? What is the likely root cause? Should I replace the drive? Obviously this is not normal and cannot be good at all, the idea is to put these drives in a RAID5 and if one is going to timeout that is going to cause the array to go degraded and thus be worthless in a raid5 configuration. Can anyone offer any insight here? Thank you, Justin.