Re: [PATCH] x86_64: fix problems due to use of "outb" to port 80 onsome AMD64x2 laptops, etc.

From: Robert Hancock
Date: Sun Dec 16 2007 - 19:54:30 EST


David P. Reed wrote:
PS: If I have time, I may try to build Rene's port 80 test for Windows and run it under WinXP on this machine (I still have a crappy little partition that boots it). If it freezes the same way, it's almost certain a design "feature", and if it doesn't freeze, we might suspect that there is compensating logic in either Windows ACPI code or some way that windows "sets up" the machine.

You'd have to replace the iopl call to an equivalent one for Windows (seems like NtSetInformationProcess(ProcessUserModeIOPL) might do what you need).

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Robert Hancock Saskatoon, SK, Canada
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