Messages in this thread | | | From | Bartlomiej Zolnierkiewicz <> | Subject | Re: IDE DMA setting not available on 2.4.23 as a module | Date | Sun, 30 Nov 2003 21:15:07 +0100 |
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Do you have piix.o module loaded or PIIX support compiled-in?
--bart
On Sunday 30 of November 2003 20:58, Santiago Garcia Mantinan wrote: > Hi! > > Yesterday I started to upgrade my systems to 2.4.23, some of them were > already running pre or rc versions, but when I tried my Pentium MMX wich > boots out of SCSI and on which I like to have IDE driver as a module, I > found that the DMA setting was not working, hdparm was saying: > > setting using_dma to 1 (on) > HDIO_SET_DMA failed: Operation not permitted > > So I changed the driver option to set DMA by default to ON, but nothing > changed, still the same problem, then I tried to compile the IDE driver > into the kernel instead of having it as a module and then the dma support > started to work, either having the driver enable it by default or by > setting it with hdparm. > > The motherboard uses a 430TX chipset, thus with a PIIX4 IDE controller. > > Is this a bug or is this a known and accepted limitation of having the IDE > driver as a module? > > If you want me to test any patch to see if we can fix this, or need any > more info, don't hesitate to contact me. > > Regards...
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