Re: man-pages-2.57 is released

From: H. Peter Anvin
Date: Mon Jun 18 2007 - 14:00:43 EST


Bodo Eggert wrote:
>
> BTW1: linux/arch/i386/kernel/ioport.c still states having 8K of bitmaps to
> be excessive (and implicitely and now wrongly as not being done). Since
> there should only be few processes requiring iopl, the 8K should not be
> excessive. We need a native speaker to change this text, at least not me
> right now.
>

That text almost certainly dates back to when every process had a bitmap.

Unfortunately, in a case of utter design braindamage, you can't have the
I/O bitmap be more than 2^16 bytes away from the base of the TSS, so
fixing that took a long time.

-hpa
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