From owner-freebsd-current Sun Feb 23 0:56: 8 2003 Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 30A8537B401 for ; Sun, 23 Feb 2003 00:56:07 -0800 (PST) Received: from stork.mail.pas.earthlink.net (stork.mail.pas.earthlink.net [207.217.120.188]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9322543FBF for ; Sun, 23 Feb 2003 00:56:06 -0800 (PST) (envelope-from tlambert2@mindspring.com) Received: from pool0405.cvx40-bradley.dialup.earthlink.net ([216.244.43.150] helo=mindspring.com) by stork.mail.pas.earthlink.net with asmtp (SSLv3:RC4-MD5:128) (Exim 3.33 #1) id 18mrvT-0007Kj-00; Sun, 23 Feb 2003 00:56:00 -0800 Message-ID: <3E588C15.7F23BCC0@mindspring.com> Date: Sun, 23 Feb 2003 00:53:41 -0800 From: Terry Lambert X-Mailer: Mozilla 4.79 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: kalts@estpak.ee Cc: "Paul A. Howes" , freebsd-current@FreeBSD.org Subject: Re: [Re: cc: Internal error: Illegal instruction (program as) References: <001c01c2da91$782551e0$0200a8c0@howesnet> <20030222191838.GA3818@kevad.internal> <3E5875D2.5040E4F0@mindspring.com> <20030223085155.GA897@kevad.internal> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-ELNK-Trace: b1a02af9316fbb217a47c185c03b154d40683398e744b8a421d7f1cfc20fe28c9dddeec14db8bf9a93caf27dac41a8fd350badd9bab72f9c350badd9bab72f9c Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Vallo Kallaste wrote: > On Sat, Feb 22, 2003 at 11:18:42PM -0800, Terry Lambert > wrote: > > I thought this was the default in 5.x GENERIC; has someone turned > > these options off in the default config?!? > > > > I certainly haven't seen changes to locore.s, pmap.c, and machdep.c > > that would fix the problem by working around the CPU bug. > > Can't say anything for Paul's case, he probably had custom kernel > then? If I can remember peter@ did the options conditional for CPU > type, so only P4 owners get'em at boot time. Check the Feb 12 commit > logs. That's too bad, since it's not a P4 specific problem. AMD and other Intel processors will also have the same problem (AMD seems to have lifted the logic circuit designs directly). The problem has definitely been around since the P3 days (the P3 is where I saw it first). The only thing that's going to be a factor is amount of memory in the system, and certain tuning parameters, in which case the workaround is accidental. -- Terry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message