From owner-freebsd-current Fri Aug 23 7:26: 3 2002 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 595D037B400 for ; Fri, 23 Aug 2002 07:26:00 -0700 (PDT) Received: from flamingo.mail.pas.earthlink.net (flamingo.mail.pas.earthlink.net [207.217.120.232]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9BDF943E3B for ; Fri, 23 Aug 2002 07:25:59 -0700 (PDT) (envelope-from tlambert2@mindspring.com) Received: from pool0207.cvx22-bradley.dialup.earthlink.net ([209.179.198.207] helo=mindspring.com) by flamingo.mail.pas.earthlink.net with esmtp (Exim 3.33 #1) id 17iFNW-0005Mu-00; Fri, 23 Aug 2002 07:25:35 -0700 Message-ID: <3D6645A4.24593DA1@mindspring.com> Date: Fri, 23 Aug 2002 07:24:36 -0700 From: Terry Lambert X-Mailer: Mozilla 4.79 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: Martin Blapp Cc: Julian Elischer , Don Lewis , sos@freebsd.dk, marks@ripe.net, ktsin@acm.org, freebsd-current@FreeBSD.ORG Subject: Re: Memory corruption in CURRENT References: <20020823155725.T50084-100000@levais.imp.ch> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit 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 Martin Blapp wrote: > > Julian just wants a full set of tests. > > Ok, I'll build another row. > > > Julian: DISABLE_PG_G alone *might* fix a particular symptom on > > a particular persons' machine, but that would not be definitive, > > only anecdotal. > > Do you think this is a software or a hardware bug ? Are PIV's buggy ;-) ? I believe it's a general Pentium-class and above hardware bug, which is currently most easily repeatable on Pentium 4's and AMD Athlons. In the limit, though, hardware people will tell you that failure to workaround hardware bugs *is* a software bug (hardware guys do not understand "recursion" or "completeness" very well, I think 8-) 8-)). FWIW: I think your machine will crash just the same without the DISABLE_PSE but with the DISABLE_PG_G. -- Terry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message