* IDE bugs for intel 440LX chipset in Test12?
@ 2000-12-13 23:28 safemode
2000-12-16 21:31 ` Andre Hedrick
0 siblings, 1 reply; 2+ messages in thread
From: safemode @ 2000-12-13 23:28 UTC (permalink / raw)
To: linux-kernel
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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* Re: IDE bugs for intel 440LX chipset in Test12?
2000-12-13 23:28 IDE bugs for intel 440LX chipset in Test12? safemode
@ 2000-12-16 21:31 ` Andre Hedrick
0 siblings, 0 replies; 2+ messages in thread
From: Andre Hedrick @ 2000-12-16 21:31 UTC (permalink / raw)
To: safemode; +Cc: linux-kernel
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.
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> Please read the FAQ at http://www.tux.org/lkml/
>
Andre Hedrick
CTO Timpanogas Research Group
EVP Linux Development, TRG
Linux ATA Development
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2000-12-16 21:31 ` Andre Hedrick
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