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SubjectRe: [linux-kernel] Re: [PATCH] x86: provide a DMI based port 0x80 I/O delay override.
David P. Reed wrote:
> Alan Cox wrote:
>>> bus abort on the LPC bus". More problematic is that I would think
>>> some people might want to turn on the AMD feature that generates
>>> machine checks if a bus timeout happens. The whole point of machine
>>> checks is
>>
>> An ISA/LPC bus timeout is fulfilled by the bridge so doesn't cause an
>> MCE.

> Good possibility, but the documentation on HyperTransport suggests
> otherwise, even for LPC bridges in this particular modern world of
> AMD64. I might do the experiment someday to see if my LPC bridge is
> implemented in a way that does or doesn't support enabling MCE's. Could
> be different between Intel and AMD - I haven't had reason to pore over
> the Intel chipset specs, since my poking into all this stuff has been
> driven by my personal machine's issues, and it's not got any Intel
> compatible parts.

If you have a subtractive decoding bridge you will have completion on HT.

-hpa


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