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SubjectRe: What's this?

>>>> With kernels 2.2.* I have the following disaster....
>>>>
>>>> kernel: hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
>>>> kernel: hda: dma_intr: error=0x84 { DriveStatusError BadCRC }
>>>> kernel: hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
>>>> kernel: hda: dma_intr: error=0x84 { DriveStatusError BadCRC }
>>>> ...
>>>> kernel: hda: DMA disabled
>>>> kernel: ide0: reset: success
>>>>
>>>> Why so happens and how to fix it?

I experienced exactly the same problem on 2.2.5 kernel, with
WDC AC313000R drive (EIDE) running on PIIX4 chipset.

I first thought I had done some bad configuration (probably UDMA
part) with hdparm utility which caused some hardware to break,
but it turned out that nothing was broken when I checked the drive
with verification tool supplied from Western Digital.

This problem went away after I turned off UDMA66 mode by tweaking
default mode of the drive set in the HDD BIOS, changing the mode
to "always-UDMA33" mode. Of course, I had to reformat the partition
and re-install everything, but since then, no problem whatsoever.

Hope this helps.

--
T. Yamada <tai@imasy.or.jp> (http://www.imasy.or.jp/~tai/index.html.{ja,en})
PGP fingerprint = 6B 57 1B ED 65 4C 7D AE 57 1B 49 A7 F7 C8 23 46

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