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rrok
n00b
Joined: 30 Aug 2005
Posts: 48
Location: Slovenia
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 Posted: Sun Sep 04, 2005 1:55 pm Post subject: Problems with DMA |
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Hi!
I want to turn on DMA on my hard disks but it doesn't work.
| Quote: | /dev/hda:
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Operation not permitted
using_dma = 0 (off) |
Where's the problem? |
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NeddySeagoon
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Joined: 05 Jul 2003
Posts: 55288
Location: 56N 3W
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| Posted: Sun Sep 04, 2005 2:13 pm Post subject: |
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rrok,
You have not included support for your particular IDE chipset in your kernel.
It needs to be built in. Post your lspci output for further detailed help
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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rrok
n00b
Joined: 30 Aug 2005
Posts: 48
Location: Slovenia
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| Posted: Sun Sep 04, 2005 3:14 pm Post subject: |
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| Quote: | 0000:00:11.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)
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I searched for that option in kernel config but i dont know what to choose  |
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 55288
Location: 56N 3W
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| Posted: Sun Sep 04, 2005 3:24 pm Post subject: |
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rrok,
Navigate/Select the following:-
| Code: | Device Drivers
ATA/ATAPI/MFM/RLL support
Enhanced IDE/MFM/RLL disk/cdrom/tape/floppy support
Include IDE/ATA-2 DISK support
Use multi-mode by default
generic/default IDE chipset support
PCI IDE chipset support
Generic PCI bus-master DMA support
Use PCI DMA by default when available
VIA82CXXX chipset support |
You may need other selections too.
Its that last item that add support for your specific chipset. The XXX means - matches any digits in those 3 places, so it suits all ViA82C IDE chipsets.
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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rrok
n00b
Joined: 30 Aug 2005
Posts: 48
Location: Slovenia
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| Posted: Sun Sep 04, 2005 5:37 pm Post subject: |
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Well, I tried that before you post that but it still doesn't work :/
Do I have to enable support for my chipset as module? |
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 55288
Location: 56N 3W
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| Posted: Sun Sep 04, 2005 9:19 pm Post subject: |
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rrok,
You have probably not installed your new kernel properly.
Does uname -a give the date and time of your mosu recent kernel build?
Did you remember to mount boot before the install?
Is the name right in /boot?
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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rrok
n00b
Joined: 30 Aug 2005
Posts: 48
Location: Slovenia
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| Posted: Mon Sep 05, 2005 8:26 am Post subject: |
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You were right
DMA works now
Thanks for your help |
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Kernel & Hardware
