On Fri, 2002-11-15 at 13:03, Gerhardus Scheltema wrote: > Hello > > I'm having problem activating the dma on my DVD/CDROM > > doing : hdparm -d 1 /dev/hda (HardDrive) works fine but > doing : hdparm -d 1 /dev/hdc (DVD/CDROM) gives me > > /dev/hdc: > setting using_dma to 1 (on) > HDIO_SET_DMA failed: Operation not permitted > using_dma = 0 (off) > > Can anybody please help? > > Gerhardus Try unmounting your dvd (and maybe removing the cdrom module) before changing dma settings. It seems the redhat kernel doesn't allow changing dma settings while the drive is in use... stock linus kernel has no problems with it. -- groeten, Klaasjan -- Psyche-list mailing list Psyche-list@redhat.com https://listman.redhat.com/mailman/listinfo/psyche-list
