Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934115AbYBOO3m (ORCPT ); Fri, 15 Feb 2008 09:29:42 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759221AbYBOO3c (ORCPT ); Fri, 15 Feb 2008 09:29:32 -0500 Received: from frost.carfax.org.uk ([212.13.194.111]:2347 "EHLO frost.carfax.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756858AbYBOO3a (ORCPT ); Fri, 15 Feb 2008 09:29:30 -0500 X-Greylist: delayed 2542 seconds by postgrey-1.27 at vger.kernel.org; Fri, 15 Feb 2008 09:29:30 EST Date: Fri, 15 Feb 2008 13:46:58 +0000 From: Hugo Mills To: linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org Subject: Spurious completions during NCQ Message-ID: <20080215134658.GB27745@vlad.carfax.org.uk> Mail-Followup-To: Hugo Mills , linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="DKU6Jbt7q3WqK7+M" Content-Disposition: inline X-GPG-Fingerprint: 8C59 86C7 81F3 93FE BB02 DDB1 20AC B3BE 515C 238D X-GPG-Key: 515C238D X-Parrot: It is no more. 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Content preview: I'm getting these on my Dell Latitude D830: Feb 15 13:06:00 willow kernel: ata1.00: exception Emask 0x2 SAct 0x4 SErr 0x0 action 0x2 frozen Feb 15 13:06:00 willow kernel: ata1.00: spurious completions during NCQ issue=0x0 SAct=0x4 FIS=004040a1:00000002 Feb 15 13:06:00 willow kernel: ata1.00: cmd 61/10:10:26:fb:c4/00:00:02:00:00/40 tag 2 cdb 0x0 data 8192 out Feb 15 13:06:00 willow kernel: res 40/00:10:26:fb:c4/00:00:02:00:00/40 Emask 0x2 (HSM violation) Feb 15 13:06:00 willow kernel: ata1: soft resetting port Feb 15 13:06:00 willow kernel: ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) Feb 15 13:06:00 willow kernel: ata1.00: configured for UDMA/133 Feb 15 13:06:00 willow kernel: ata1: EH complete Feb 15 13:06:00 willow kernel: sd 0:0:0:0: [sda] 312581808 512-byte hardware sectors (160042 MB) Feb 15 13:06:00 willow kernel: sd 0:0:0:0: [sda] Write Protect is off Feb 15 13:06:00 willow kernel: sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 Feb 15 13:06:00 willow kernel: sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [...] Content analysis details: (-2.6 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -2.6 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3210 Lines: 78 --DKU6Jbt7q3WqK7+M Content-Type: text/plain; charset=us-ascii Content-Disposition: inline I'm getting these on my Dell Latitude D830: Feb 15 13:06:00 willow kernel: ata1.00: exception Emask 0x2 SAct 0x4 SErr 0x0 action 0x2 frozen Feb 15 13:06:00 willow kernel: ata1.00: spurious completions during NCQ issue=0x0 SAct=0x4 FIS=004040a1:00000002 Feb 15 13:06:00 willow kernel: ata1.00: cmd 61/10:10:26:fb:c4/00:00:02:00:00/40 tag 2 cdb 0x0 data 8192 out Feb 15 13:06:00 willow kernel: res 40/00:10:26:fb:c4/00:00:02:00:00/40 Emask 0x2 (HSM violation) Feb 15 13:06:00 willow kernel: ata1: soft resetting port Feb 15 13:06:00 willow kernel: ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) Feb 15 13:06:00 willow kernel: ata1.00: configured for UDMA/133 Feb 15 13:06:00 willow kernel: ata1: EH complete Feb 15 13:06:00 willow kernel: sd 0:0:0:0: [sda] 312581808 512-byte hardware sectors (160042 MB) Feb 15 13:06:00 willow kernel: sd 0:0:0:0: [sda] Write Protect is off Feb 15 13:06:00 willow kernel: sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 Feb 15 13:06:00 willow kernel: sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA In some cases, there are several cmd/res lines listed. It's happening about once an hour or so (not correlated with any other event that I can see). It doesn't seem to be affecting operation of the machine, but it's making me nervous. Can anyone set my mind at rest? (Or suggest a fix?) uname -a reports: Linux willow 2.6.23.1-hrt3 #1 SMP Sun Nov 4 14:51:20 GMT 2007 x86_64 GNU/Linux It's a kernel.org kernel with the patch for tickless operation on amd64. hdparm -i reports: /dev/sda: Model=ST9160823AS , FwRev=3.ADC , SerialNo= 5NK0C448 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% } RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4 BuffType=unknown, BuffSize=8192kB, MaxMultSect=16, MultSect=?8? CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=268435455 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120} PIO modes: pio0 pio1 pio2 pio3 pio4 DMA modes: mdma0 mdma1 mdma2 UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 AdvancedPM=yes: unknown setting WriteCache=enabled Drive conforms to: Unspecified: ATA/ATAPI-1,2,3,4,5,6,7 * signifies the current active mode Hugo. -- === Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk === PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk --- w.w.w. : England's batting scorecard --- --DKU6Jbt7q3WqK7+M Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFHtZfSIKyzvlFcI40RAjGkAKCxuDHSck654WUiio7FZGO86RW/0ACfcU6d vzeJ/lidh5rvDF+2LxONio8= =M6oS -----END PGP SIGNATURE----- --DKU6Jbt7q3WqK7+M-- -- 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/