All I can say right now is that enabling DMA on a 440LX chipset with
2.4.0-test12 or any other kernel I can remember has caused DMA timeout
and ide-reset problems. Disabling dma on the harddrives doesn't help
that much either, I still get ide resets. What I'm looking for right
now is some information on how to log what the kernel recieves from the
harddrive and possibly what it sends so I can give rik some better
information on what's going on in this chipset. Thanks.
Anyone with a PIIX4,PIIX4AB,PIIX4EB has a hardware bug.
If many of the chipset makers followed and reverse engineered their stuff
against that bug then ths explains all of the timeout issues.
I am working on a fix, but do not have one yet.
Cheers,
On Wed, 13 Dec 2000, safemode wrote:
> All I can say right now is that enabling DMA on a 440LX chipset with
> 2.4.0-test12 or any other kernel I can remember has caused DMA timeout
> and ide-reset problems. Disabling dma on the harddrives doesn't help
> that much either, I still get ide resets. What I'm looking for right
> now is some information on how to log what the kernel recieves from the
> harddrive and possibly what it sends so I can give rik some better
> information on what's going on in this chipset. Thanks.
>
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Andre Hedrick
CTO Timpanogas Research Group
EVP Linux Development, TRG
Linux ATA Development