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[Launchpad Bug Tracker <229747@xxxxxxxxxxxxxxxxxx>]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

** Changed in: linux (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/229747

Title:
  "port is slow to respond" error freezes OS for seconds while reading
  HDs

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  Sometimes, while reading data from HD, my OS hangs for about 15 seconds (gray window and no feedback).
  The problem started with Gutsy but in Hardy it'is very frequent and makes Ubuntu almost unusable.

  The PC is a notebook Acer Aspire 5630

  Here the log:

  May  6 14:19:59 [ 7215.888622] ata1.01: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
  May  6 14:19:59 [ 7215.888643] ata1.01: cmd a0/00:00:00:0c:00/00:00:00:00:00/b0 tag 0 pio 12 in
  May  6 14:19:59 [ 7215.888645]          cdb 43 00 00 00 00 00 00 00  0c 00 00 00 00 00 00 00
  May  6 14:19:59 [ 7215.888647]          res 40/00:03:00:00:00/00:00:00:00:00/b0 Emask 0x4 (timeout)
  May  6 14:19:59 [ 7215.888653] ata1.01: status: { DRDY }
  May  6 14:20:04 [ 7220.919632] ata1: port is slow to respond, please be patient (Status 0xd0)
  May  6 14:20:09 [ 7225.895745] ata1: device not ready (errno=-16), forcing hardreset
  May  6 14:20:09 [ 7225.895755] ata1: soft resetting link
  May  6 14:20:09 [ 7226.256879] ata1.00: configured for UDMA/100
  May  6 14:20:09 [ 7226.444321] ata1.01: configured for UDMA/33
  May  6 14:20:09 [ 7226.444343] ata1: EH complete
  May  6 14:20:09 [ 7226.459683] sd 0:0:0:0: [sda] 156301488 512-byte hardware sectors (80026 MB)
  May  6 14:20:09 [ 7226.475290] sd 0:0:0:0: [sda] Write Protect is off
  May  6 14:20:09 [ 7226.475300] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
  May  6 14:20:09 [ 7226.499305] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
  May  6 14:20:09 [ 7226.523191] sd 0:0:0:0: [sda] 156301488 512-byte hardware sectors (80026 MB)
  May  6 14:20:09 [ 7226.539172] sd 0:0:0:0: [sda] Write Protect is off
  May  6 14:20:09 [ 7226.539182] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
  May  6 14:20:09 [ 7226.563167] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA

  
  sudo hdparm -I /dev/sda

  /dev/sda:

  ATA device, with non-removable media
  	Model Number:       HTS541080G9AT00                         
  	Serial Number:      MP28XBXBH283AS
  	Firmware Revision:  MB4OA60A
  Standards:
  	Used: ATA/ATAPI-6 T13 1410D revision 3a 
  	Supported: 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)
  	Standby timer values: spec'd by Vendor, no device specific minimum
  	R/W multiple sector transfer: Max = 16	Current = 0
  	Advanced power management level: 128
  	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=240ns  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
  	    	Power-Up In Standby feature set
  	   *	SET_FEATURES required to spinup after power up
  	    	Address Offset Reserved Area Boot
  	    	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
  Security: 
  	Master password revision code = 65534
  		supported
  	not	enabled
  	not	locked
  	not	frozen
  	not	expired: security count
  	not	supported: enhanced erase
  	58min for SECURITY ERASE UNIT. 
  HW reset results:
  	CBLID- above Vih
  	Device num = 0 determined by the jumper
  Checksum: correct

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