On Sun, Jul 27, 2008 at 16:57:19 +0300, Anton Liaukevich wrote: > 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)
[...] >>> Today I upgraded my linux kernel to 2.6.25-2-686, but problem hasn't >>> been solved yet. [...] > 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) Maybe your system is using the wrong driver. > 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 I was expecting to see amd74xx listed here in addition to 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] Hmm, maybe you system uses ide_generic, which would explain why it cannot turn on DMA. > 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 [...] > 00:09.0 IDE interface [0101]: nVidia Corporation nForce2 IDE [10de:0065] (rev > a2) This is as expected; I checked the 2.6.25 kernel sources and this controller should be supported. I would be interested to see the output of udevadm info -a --name /dev/hda to check which drivers are used. -- Regards, | http://users.icfo.es/Florian.Kulzer Florian | -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
