Re: Kernel 2.4.17 with VT8367 [KT266] crashes on heavy ide load togeter

David Härdeman (
Fri, 29 Mar 2002 23:18:21 +0100


First off, I'd like to thank Andre Hedrick for the link to:

It was very helpful in making me understand why the performance of my
newly bought Adaptec 2400A IDE-Raid card sucked so badly in combination
with my VIA KT133 based board.

I have done some testing (on the Win platform since that's where the
patches to remedy this situation are available) that shows quite nicely
how the PCI bus gets totally overrun by transfer rates in excess of
approximately 74MB/s and instead slows down.

Short summary
Expected rate Experienced rate

(If someone is very interested, mail me and I can publish some transfer
rate graphs online)

I just have a few questions:

1) Is there any efforts made to add the "hacks" that VIA has put into
their (win only patch) at:
into the kernel? Does VIA give out specs what the patch does?

2) Has anyone had any experiences with the VIA KT333 chipset? Does it
have the same numerous problems that the KT133/266 seem to have?

3) Could someone recommend another non-VIA chipset to use instead that
they've had good experiences with? (since I am going to buy a new
motherboard to remedy this situation)

Thanks in advance and please CC me any answers since I'm not on the list.


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