Re: Possible Pentium MMX CPU bug?

Linus Torvalds (torvalds@transmeta.com)
Tue, 2 Dec 1997 13:51:18 -0800 (PST)


On Tue, 2 Dec 1997, Thomas Sailer wrote:
>
> BTW, segment prefixes seem to work too with invlpg, the following solved
> my problem equally well:

Yes. The segment prefix is the "nicer" solution due to not having any
segment wrap-around behaviour, but doing the strange offset is safer for a
2.0.x patch - I can't guarantee that %fs is always correct when this is
used (I can imagine people mucking around with set_fs() etc), but the
kernel segment is _certainly_ going to be correct.

Linus