David Relson schrieb: > Greetings! > > I've recently updated from kernel 2.6.20 to 2.6.24 a little used > machine. The new kernel is working quite well. However hdparm isn't > happy. > > Running either "hdparm -d0 /dev/hda" or "hdparm -d1 /dev/hda" gives a > "HDIO_SET_DMA failed: Operation not permitted" error. Using the same > config for 2.6.25 gives the same result as 2.6.24. > > Here are the DMA related options that are enabled: > > OLD (2.6.20): > > CONFIG_BLK_DEV_IDEDMA=y > CONFIG_BLK_DEV_IDEDMA_PCI=y > CONFIG_GENERIC_ISA_DMA=y > CONFIG_IDEDMA_AUTO=y > CONFIG_IDEDMA_PCI_AUTO=y > CONFIG_ISA_DMA_API=y > > > NEW (2.6.24 and 2.6.25): > CONFIG_BLK_DEV_IDEDMA=y > CONFIG_BLK_DEV_IDEDMA_PCI=y > CONFIG_GENERIC_ISA_DMA=y > CONFIG_HAS_DMA=y > CONFIG_ISA_DMA_API=y > CONFIG_SCSI_DMA=y > CONFIG_ZONE_DMA=y > CONFIG_ZONE_DMA_FLAG=1 > > Can anybody tell me what I've missed? > > Thanks. > > David >
Are CONFIG_ATA_GENERIC and CONFIG_IDE_GENERIC enabled? If so, please try to deactivate them/compile them as modules and don't load them.
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