Hi there ... I have the 2.2.17 Kernel with the VIA Chipset Support. My BIOS says that my HD (Samsung) is in UDMA Mode 4. A friend of mine told me that I can increase my disk performance a little if I use DMA. hdparm -d 1 /dev/hda But I will get the following errors whenever I run hdparm -tT /dev/hda : Sep 25 10:06:15 cello kernel: hdc: drive_cmd: status=0x51 { DriveReady SeekComplete Error } Sep 25 10:06:15 cello kernel: hdc: drive_cmd: error=0x04 Sep 25 10:06:42 cello kernel: hda: dma_intr: status=0x51 { DriveReady SeekComplete Error } Sep 25 10:06:42 cello kernel: hda: dma_intr: error=0x84 { DriveStatusError BadCRC } Sep 25 10:06:42 cello kernel: hda: dma_intr: status=0x51 { DriveReady SeekComplete Error } Sep 25 10:06:42 cello kernel: hda: dma_intr: error=0x84 { DriveStatusError BadCRC } Sep 25 10:06:52 cello kernel: hda: lost interrupt Sep 25 10:06:52 cello kernel: hda: dma_intr: status=0x51 { DriveReady SeekComplete Error } Sep 25 10:06:52 cello kernel: hda: dma_intr: error=0x84 { DriveStatusError BadCRC } Sep 25 10:07:02 cello kernel: hda: lost interrupt Sep 25 10:07:02 cello kernel: hda: dma_intr: status=0x51 { DriveReady SeekComplete Error } Sep 25 10:07:02 cello kernel: hda: dma_intr: error=0x84 { DriveStatusError BadCRC } Sep 25 10:07:02 cello kernel: hda: dma_intr: status=0x51 { DriveReady SeekComplete Error } Sep 25 10:07:02 cello kernel: hda: dma_intr: error=0x84 { DriveStatusError BadCRC } Sep 25 10:07:02 cello kernel: hda: DMA disabled Whats wrong there? with friendly regards.... jens luedicke <[EMAIL PROTECTED]> Support the Theory of Evolution; 400 Billion Amphibians can't be wrong! Q: What is the difference between Texas and yogurt? A: Yogurt has culture. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/