Date: Mon, 18 May 1998 11:04:17 GMT From: jak@cetlink.net (John Kelly) To: Studded <Studded@dal.net> Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: Pentium F00F bug Message-ID: <3560142c.148871306@mail.cetlink.net> In-Reply-To: <355F9294.580BB181@dal.net> References: <199805172218.IAA03007@gsms01.alcatel.com.au> <355F9294.580BB181@dal.net>
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On Sun, 17 May 1998 18:44:52 -0700, Studded <Studded@dal.net> wrote: > When the bug was first described there was wide difference of opinion >on how it "should" be fixed. A more efficient way of doing it would >doubtlessly be a good thing, however given that no one who wanted a >better way to solve the problem has coded it yet, I don't anticipate it >happening any time soon. :) On about 97-12-01 BSDI released a revised F00F patch for BSD/OS 2.1. Someone with a BSD/OS source license could look and see what they did. > >PATCH: > K210-031 > >SUMMARY: > This mod implements a simpler fix to the Intel Pentium and > Pentium/MMX invalid instruction hang. The fix changes the > way the IDT is used by the CPU such that there is no run > time performance penalty, even for the less used interrupts > that were emulated by K210-030. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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