Date: Tue, 18 Jun 1996 10:07:43 EST From: "David Alderman" <dave@persprog.com> To: "Eloy A. Paris" <Eloy.Paris@ven.ra.rockwell.com>, questions@FreeBSD.ORG Subject: Re: FreeBSD works with Cy486DLC processors? Message-ID: <12E9AAE3BDA@novell.persprog.com>
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> Date: Mon, 17 Jun 1996 21:02:39 -0400 > Organization: Rockwell Automation de Venezuela > To: questions@FreeBSD.ORG, hardware@FreeBSD.ORG > From: "Eloy A. Paris" <Eloy.Paris@ven.ra.rockwell.com> > Subject: FreeBSD works with Cy486DLC processors? > Hi. > > I installed FreeBSD 2.1.0-RELEASE a couple of weeks ago and since then I > have been having programs exiting with signals 10 and 11, making my system > too unstable to work as a dedicated e-mail server and as a PPP to Ethernet > gateway. > > I get such errors with processor intensive tasks like compiling (I got > errors like these while compiling the kernel, pppd and bind). > > My microprocessor is a Cyrix Cy486DLC running at a mother board clock rate > of 33 MHz and an internal clock rate of 100 MHz. > > Today I disabled the internal cache of the CPU and the system is behaving > quite stable since then but it is very very slooowwww. I got this error though: > > Jun 17 13:25:33 skynet /kernel: pid 2880: tr: uid 1000: exited on signal 11 > > but I want to think this is not related to my hardware problem :-( > > I have read the mail archives in www.freebsd.org and saw that someone said > that he would hardly recommend getting a Cyrix microprocessor. > > Can someone tell me what could be wrong with my hardware setup and if I > would do better getting a genuine Intel CPU? > > I am in deep trouble since I recommended to upgrade an old PC to a 486 > instead of buying a new PC for this important piece of our Information > Technology structure. This machine is going to be an e-mail server (sendmail > + pop3) and a PPP to Ethernet gateway that will connect two buildings > through a leased line. I NEED stability!!! > > I don't think there is a problem with the mother board because I have tried > with two getting the same errors. > > My hardware setup is: > > Cyrix Cy486DLC CPU > 16 Megs. of RAM > 1 GByte IDE hard drive > FreeBSD 2.1.0-RELEASE > > Any hint will be greatly appreciated. > > Thanks in advance. > > Eloy.- > > -- > > Eloy A. Paris It is very unlikely that your processor is a 486DLC if it runs internally at 100MHz. More likely, it is a 486DX4 from Cyrix that FreeBSD has mistakenly identified. Most other CPU ID programs will mistakenly identify at least some of the Cyrix chips (in my case it was a Cyrix 486/80). If I remember correctly, aren't DLC chips 386 pinout chips from Cyrix and TI that claimed 486-class performance? The early versions had a few bugs in the instruction set. > Global Technical Services > Rockwell Automation de Venezuela > Telephone: 58-2-9432311 Fax: 58-2-9430323 > > ====================================== When philosophy conflicts with reality, choose reality. Dave Alderman -- dave@persprog.com ======================================
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