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SubjectRe: UDMA problem with Maxtor 7200rpm disk
Date


>When I try to enable DMA with hdparm -d1 /dev/hda :

>ide_dmaproc: chipset supported ide_dma_timeout func only: 14
>hda: irq timeout: status=0x58 { DriveReady SeekComplete DataRequest }
>hda: timeout waiting for DMA
>ide_dmaproc: chipset supported ide_dma_timeout func only: 14
>hda: irq timeout: status=0x58 { DriveReady SeekComplete DataRequest }
>hda: timeout waiting for DMA
>ide_dmaproc: chipset supported ide_dma_timeout func only: 14
>hda: irq timeout: status=0x58 { DriveReady SeekComplete DataRequest }
>hda: timeout waiting for DMA
>ide_dmaproc: chipset supported ide_dma_timeout func only: 14
>hda: irq timeout: status=0x58 { DriveReady SeekComplete DataRequest }
>hda: DMA disabled
>ide0: reset: success

I got this when I got my 40G 5200 maxtor. I've got an old award bios & PII
with 440bx chipset.

The solution was to turn off udma in bios my 2.2 kernel and w98 could then
use mdma.

I noticed that when I tested with a 2.4.9 it could use udma again - even
though it remains off (for W98 & 2.2) in bios.

Andy.
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