Re: [linux-kernel] Re: [PATCH] x86: provide a DMI based port 0x80I/O delay override.

[David Woodhouse]

On Fri, 2008-01-11 at 09:35 -0500, David P. Reed wrote:
>   Using any "unused port" for a delay means that the machine check
> feature is wasted and utterly unusable.

Not entirely unusable. You can recover silently from the machine check
if it was one of the known accesses to the 'unused port'. It certainly
achieves a delay :)

On ppc32 we recover from the machine check if it was any inb/outb --
mostly to work around crappy drivers developed on i386, I believe.

-- 
dwmw2

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