Date: Wed, 19 Jul 95 11:20:59 MDT From: terry@cs.weber.edu (Terry Lambert) To: john@starfire.mn.org (John Lind) Cc: hackers@FreeBSD.ORG Subject: Re: FreeBSD 2.x may not run on Cyrix 486DL Message-ID: <9507191721.AA28292@cs.weber.edu> In-Reply-To: <199507190320.WAA14174@starfire.mn.org> from "John Lind" at Jul 18, 95 10:20:17 pm
next in thread | previous in thread | raw e-mail | index | archive | help
> I have tried images to boot FreeBSD 2.0R, 2.0.5R, and 2.0.5-950622-SNAP > on my 33Mhz Cyrix 486DL which is currently running FreeBSD 1.1, and > none of them have worked. 2.0R hangs before the "Testing Memory" > message, and the 2.0.5 versions reboot right before the Copyright > message (right after uncompressing done and booting kernel). I have > tried all three boot images on my 386, and the images themselves seem > fine. (I have tried to disable the cache, but that breaks this system > very badly for some unknown reason...) > > Should I bite the bullet and get a 486 MB and an Intel chip, or is there > some way I can contribute to resolving this? The compressed kernel is a problem in this regard (when coupled with the bootblock size limitations). The correct behaviour would probably be to disable the cache on Cyrix chips because they do not honor the non-cacheable bit. The detection and disabling code could be taken from "The Undocumented PC". Terry Lambert terry@cs.weber.edu --- Any opinions in this posting are my own and not those of my present or previous employers.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?9507191721.AA28292>