[Bug 8162] New: can't enable dma on ide hard drives

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Ubuntu | linux

           Summary: can't enable dma on ide hard drives
           Product: Ubuntu
           Version: unspecified
          Platform: amd64
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: linux
        AssignedTo: fabbione at ubuntu.com
        ReportedBy: sjmorgan at gmail.com
         QAContact: kernel-bugs at lists.ubuntu.com


When I try to enable DMA on my IDE hard drives (both Western Digital) I get the
following error. It wouldn't be so bad if it wasn't for the fact that without
DMA anything I/O intensive is excrutiatingly slow and causes system load to
shoot through the roof.

simon at bainbridge:~$ sudo hdparm -d 1 /dev/hda

/dev/hda:
 setting using_dma to 1 (on)
 HDIO_SET_DMA failed: Operation not permitted
 using_dma    =  0 (off)

simon at bainbridge:~$ sudo hdparm -I /dev/hda

/dev/hda:

ATA device, with non-removable media
	Model Number:       WDC WD1600JB-00DUA3                     
	Serial Number:      WD-WMACK1760128
	Firmware Revision:  75.13B75
Standards:
	Supported: 6 5 4 3 
	Likely used: 6
Configuration:
	Logical		max	current
	cylinders	16383	65535
	heads		16	1
	sectors/track	63	63
	--
	CHS current addressable sectors:    4128705
	LBA    user addressable sectors:  268435455
	LBA48  user addressable sectors:  312581808
	device size with M = 1024*1024:      152627 MBytes
	device size with M = 1000*1000:      160041 MBytes (160 GB)
Capabilities:
	LBA, IORDY(can be disabled)
	bytes avail on r/w long: 74	Queue depth: 1
	Standby timer values: spec'd by Standard, with device specific minimum
	R/W multiple sector transfer: Max = 16	Current = 0
	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:
	   *	READ BUFFER cmd
	   *	WRITE BUFFER cmd
	   *	Host Protected Area feature set
	   *	Look-ahead
	   *	Write cache
	   *	Power Management feature set
		Security Mode feature set
	   *	SMART feature set
	   *	FLUSH CACHE EXT command
	   *	Mandatory FLUSH CACHE command 
	   *	Device Configuration Overlay feature set 
	   *	48-bit Address feature set 
		Automatic Acoustic Management feature set 
		SET MAX security extension
	   *	DOWNLOAD MICROCODE cmd
	   *	SMART self-test 
	   *	SMART error logging 
Security: 
		supported
	not	enabled
	not	locked
	not	frozen
	not	expired: security count
	not	supported: enhanced erase
HW reset results:
	CBLID- above Vih
	Device num = 0 determined by CSEL
Checksum: correct

simon at bainbridge:~$ lspci 
0000:00:00.0 Memory controller: nVidia Corporation: Unknown device 005e (rev a3)
0000:00:01.0 ISA bridge: nVidia Corporation: Unknown device 0050 (rev a3)
0000:00:01.1 SMBus: nVidia Corporation: Unknown device 0052 (rev a2)
0000:00:02.0 USB Controller: nVidia Corporation: Unknown device 005a (rev a2)
0000:00:02.1 USB Controller: nVidia Corporation: Unknown device 005b (rev a3)
0000:00:04.0 Multimedia audio controller: nVidia Corporation: Unknown device
0059 (rev a2)
0000:00:06.0 IDE interface: nVidia Corporation: Unknown device 0053 (rev a2)
0000:00:07.0 IDE interface: nVidia Corporation: Unknown device 0054 (rev a3)
0000:00:08.0 IDE interface: nVidia Corporation: Unknown device 0055 (rev a3)
0000:00:09.0 PCI bridge: nVidia Corporation: Unknown device 005c (rev a2)
0000:00:0a.0 Bridge: nVidia Corporation: Unknown device 0057 (rev a3)
0000:00:0b.0 PCI bridge: nVidia Corporation: Unknown device 005d (rev a3)
0000:00:0c.0 PCI bridge: nVidia Corporation: Unknown device 005d (rev a3)
0000:00:0d.0 PCI bridge: nVidia Corporation: Unknown device 005d (rev a3)
0000:00:0e.0 PCI bridge: nVidia Corporation: Unknown device 005d (rev a3)
0000:00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
0000:00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
0000:00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
0000:00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
0000:01:00.0 VGA compatible controller: nVidia Corporation: Unknown device 0141
(rev a2)

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