linux-kernel - Re: spurious completions during NCQ?

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Message-ID: <20070608131157.GH30661@iucha.net>
Date:	Fri, 8 Jun 2007 08:11:57 -0500
From:	florin@...ha.net (Florin Iucha)
To:	Tejun Heo <htejun@...il.com>
Cc:	Robert Hancock <hancockr@...w.ca>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: spurious completions during NCQ?

On Fri, Jun 08, 2007 at 09:55:58PM +0900, Tejun Heo wrote:
> Florin Iucha wrote:
> >> It means the drive reported command tags were completed that were not 
> >> outstanding. What kind of drive is this?
> > 
> > [   29.033142] ata1.00: ata_hpa_resize 1: sectors = 156301488, hpa_sectors = 156
> > 301488
> > [   29.033146] ata1.00: ATA-7: HITACHI HTS541680J9SA00, SB2IC7EP, max UDMA/100
> > [   29.033149] ata1.00: 156301488 sectors, multi 16: LBA48 NCQ (depth 31/32)
> > [   29.034230] ata1.00: ata_hpa_resize 1: sectors = 156301488, hpa_sectors = 156
> > 301488
> 
> Please report the result of 'hdparm -I /dev/sda'.  We'll probably have
> to blacklist it for NCQ.

Here it is: I only jumbled the serial number a bit.

/dev/sda:

ATA device, with non-removable media
	Model Number:       HITACHI HTS541680J9SA00                 
	Serial Number:      SB******I57L4A
	Firmware Revision:  SB2IC7EP
Standards:
	Used: ATA/ATAPI-7 T13 1532D revision 1 
	Supported: 7 6 5 4 
Configuration:
	Logical		max	current
	cylinders	16383	16383
	heads		16	16
	sectors/track	63	63
	--
	CHS current addressable sectors:   16514064
	LBA    user addressable sectors:  156301488
	LBA48  user addressable sectors:  156301488
	device size with M = 1024*1024:       76319 MBytes
	device size with M = 1000*1000:       80026 MBytes (80 GB)
Capabilities:
	LBA, IORDY(can be disabled)
	Queue depth: 32
	Standby timer values: spec'd by Vendor, no device specific minimum
	R/W multiple sector transfer: Max = 16	Current = 16
	Advanced power management level: 128 (0x80)
	Recommended acoustic management value: 128, current value: 254
	DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5 
	     Cycle time: min=120ns recommended=120ns
	PIO: pio0 pio1 pio2 pio3 pio4 
	     Cycle time: no flow control=120ns  IORDY flow control=120ns
Commands/features:
	Enabled	Supported:
	   *	SMART feature set
	    	Security Mode feature set
	   *	Power Management feature set
	   *	Write cache
	   *	Look-ahead
	   *	Host Protected Area feature set
	   *	WRITE_BUFFER command
	   *	READ_BUFFER command
	   *	NOP cmd
	   *	DOWNLOAD_MICROCODE
	   *	Advanced Power Management feature set
	    	SET_MAX security extension
	    	Automatic Acoustic Management feature set
	   *	48-bit Address feature set
	   *	Device Configuration Overlay feature set
	   *	Mandatory FLUSH_CACHE
	   *	FLUSH_CACHE_EXT
	   *	SMART error logging
	   *	SMART self-test
	   *	General Purpose Logging feature set
	   *	WRITE_{DMA|MULTIPLE}_FUA_EXT
	   *	64-bit World wide name
	   *	IDLE_IMMEDIATE with UNLOAD
	   *	SATA-I signaling speed (1.5Gb/s)
	   *	Native Command Queueing (NCQ)
	   *	Host-initiated interface power management
	   *	Phy event counters
	    	Non-Zero buffer offsets in DMA Setup FIS
	    	DMA Setup Auto-Activate optimization
	    	Device-initiated interface power management
	    	In-order data delivery
	   *	Software settings preservation
Security: 
	Master password revision code = 65534
		supported
	not	enabled
	not	locked
		frozen
	not	expired: security count
	not	supported: enhanced erase
	42min for SECURITY ERASE UNIT. 
Checksum: correct

florin

-- 
Bruce Schneier expects the Spanish Inquisition.
      http://geekz.co.uk/schneierfacts/fact/163

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