Messages in this thread | | | From | "H. Peter Anvin" <> | Subject | Re: IO delay, port 0x80, and BIOS POST codes | Date | 14 Mar 2002 13:57:40 -0800 |
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Followup to: <Pine.LNX.4.33.0203141318130.9855-100000@penguin.transmeta.com> By author: Linus Torvalds <torvalds@transmeta.com> In newsgroup: linux.dev.kernel > > Port ED is fine for a BIOS, which (by definition) knows what the > motherboard devices are, and thus knows that ED cannot be used by > anything. > > But it _is_ an unused port, and that's exactly the kind of thing that > might be used sometime in the future. Remember the port 22/23 brouhaha > with Cyrix using it for their stuff, and later Intel getting into the fray > too? > > So the fact that ED works doesn't mean that _stays_ working. >
It is, in fact, broken on several systems -- I tried ED in SYSLINUX for a while, and it broke things for people.
-hpa -- <hpa@transmeta.com> at work, <hpa@zytor.com> in private! "Unix gives you enough rope to shoot yourself in the foot." http://www.zytor.com/~hpa/puzzle.txt <amsp@zytor.com> - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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