Date: Sat, 10 Feb 1996 08:37:08 -0800 From: Jake Hamby <jehamby@lightside.com> To: Luis Verissimo <licau@ebs06.eb.uah.edu>, "'David Kirchner'" <dpk@eskimo.com> Cc: "Freeman P. Pascal IV" <pascal@pascal.org>, FreeBSD Hackers list <hackers@freebsd.org>, "questions@freebsd.org" <questions@freebsd.org> Subject: RE: Unexplained segfaults in 2.1.0-RELEASE Message-ID: <01BAF794.47508630@hamby1.lightside.net>
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---------- From: David Kirchner Sent: Friday, February 09, 1996 10:47 PM To: Luis Verissimo Cc: Freeman P. Pascal IV; FreeBSD Hackers list; questions@freebsd.org Subject: Re: Unexplained segfaults in 2.1.0-RELEASE On Fri, 9 Feb 1996, Luis Verissimo wrote: > I have a 486DX4-100 machine running FreeBSD-2.1R. I experienced the = same=20 > problems. I had to disable both the internal and external caches, of = my=20 > machine. It then worked find. >=20 > I have another 486DX2-66 older machine, that keeps getting those = signals,=20 > even with both caches disabled.=20 That problem happened to me as well, those wouldn't happen to be AMD=20 CPU's would they? Mine is a 486DX4-120 and I didn't only get segfaults, = I=20 got drive errors. AMD suggests in the FAQ it's due to people = overclocking=20 their CPUs, but I haven't done that personally. They also say if you put = the clock back to normal, it'll work again. I'm Cc:'ing this to questions and hackers, feel free to change the=20 Cc list if you want. =3D) -- David Kirchner -- dpk@eskimo.com I have an AMD DX4-100 and haven't had any trouble with it. Curiously, I = put together an AMD DX4-120 PCI system for my Internet provider, and we = couldn't get it to boot FreeBSD (or even DOS reliably!) it would = complain of CRC errors when un-gzipping the boot floppy kernel. We = figured it was cheap underspec RAM we had bought (do you need 60ns for a = DX4-120?) so we clocked it down to 100MHz and it has worked perfectly = ever since! YMMV of course... ---Jake
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