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Re: DMA is turned off on my HDD

Florian Kulzer wrote:

On Wed, Jul 23, 2008 at 20:59:09 +0300, Anton Liaukevich wrote:

Anton Liaukevich wrote:
In several days I discovered that DMA is turned off on my HDD (fsck sayed it while Debian booting). Please, help me turn on DMA mode. 

My hardware:
    motherboard: Epox 8RDA3I rev 3.3 (nForce 2 Ultra)
    hdd: WD1200JB (ide, 120gb)
    cpu: Sempron 2200 (k7)

My software:
    Debian lenny
    kernel: linux 2.6.24-1-686
    bootloader: grub 0.97-41
Today I upgraded my linux kernel to 2.6.25-2-686, but problem hasn't been solved yet.
This is important information: the vendorID (10de NVIDIA) and the 
deviceID (0065 NVIDIA_NFORCE2_IDE). You will get the same information by
running "lspci -nn" on the command line; it will be listed as
"[10de:0065]". This IDE controller seems to be supported by the amd74xx
driver in kernel 2.6.25 (according to the Debian driver check page at
http://kmuto.jp/debian/hcl/).

The first thing to check is if your kernel loaded the correct modules;
please post the output of this command:

lsmod | grep -E 'amd74xx|ata|\bide'

Also, install the "hdparm" package if you don't have it already and run
"hdparm /dev/hda" as root. What response do you get? You can also try to
turn on DMA yourself with "hdparm -d1 /dev/hda"; maybe you will receive
a helpful error message.
I installed hdparm long ago and it says that dma if off, moreover hdparm can't turn it on: 

leva:/home/anthony/admin# hdparm -d1 /dev/hda

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


Trying to check if my kernel has loaded the correct modules:

leva:/home/anthony/admin# lsmod | grep -E 'amd74xx|ata|\bide'
ide_pci_generic         4228  0 [permanent]
amd74xx                 8136  0 [permanent]
ata_generic             8004  0
libata                142288  1 ata_generic
scsi_mod              138668  1 libata
dock                   10448  1 libata
ide_cd_mod             32864  0
cdrom                  31872  1 ide_cd_mod
ide_disk               13952  8
ide_generic             1376  0 [permanent]
ide_core 100312 5 ide_pci_generic,amd74xx,ide_cd_mod,ide_disk,ide_generic 


Also I'm giving you output of 'lspci -nn' command:

leva:/home/anthony/admin# lspci -nn
00:00.0 Host bridge [0600]: nVidia Corporation nForce2 IGP2 [10de:01e0] (rev c1) 00:00.1 RAM memory [0500]: nVidia Corporation nForce2 Memory Controller 1 [10de:01eb] (rev c1) 00:00.2 RAM memory [0500]: nVidia Corporation nForce2 Memory Controller 4 [10de:01ee] (rev c1) 00:00.3 RAM memory [0500]: nVidia Corporation nForce2 Memory Controller 3 [10de:01ed] (rev c1) 00:00.4 RAM memory [0500]: nVidia Corporation nForce2 Memory Controller 2 [10de:01ec] (rev c1) 00:00.5 RAM memory [0500]: nVidia Corporation nForce2 Memory Controller 5 [10de:01ef] (rev c1) 00:01.0 ISA bridge [0601]: nVidia Corporation nForce2 ISA Bridge [10de:0060] (rev a4) 00:01.1 SMBus [0c05]: nVidia Corporation nForce2 SMBus (MCP) [10de:0064] (rev a2) 00:02.0 USB Controller [0c03]: nVidia Corporation nForce2 USB Controller [10de:0067] (rev a4) 00:02.1 USB Controller [0c03]: nVidia Corporation nForce2 USB Controller [10de:0067] (rev a4) 00:02.2 USB Controller [0c03]: nVidia Corporation nForce2 USB Controller [10de:0068] (rev a4) 00:04.0 Ethernet controller [0200]: nVidia Corporation nForce2 Ethernet Controller [10de:0066] (rev a1) 00:06.0 Multimedia audio controller [0401]: nVidia Corporation nForce2 AC97 Audio Controler (MCP) [10de:006a] (rev a1) 00:08.0 PCI bridge [0604]: nVidia Corporation nForce2 External PCI Bridge [10de:006c] (rev a3) 00:09.0 IDE interface [0101]: nVidia Corporation nForce2 IDE [10de:0065] (rev a2) 00:1e.0 PCI bridge [0604]: nVidia Corporation nForce2 AGP [10de:01e8] (rev c1) 01:09.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ [10ec:8139] (rev 10) 02:00.0 VGA compatible controller [0300]: nVidia Corporation NV18 [GeForce4 MX 440 AGP 8x] [10de:0181] (rev c1)
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