Return to BSD News archive
Path: sserve!newshost.anu.edu.au!munnari.oz.au!ariel.ucs.unimelb.EDU.AU!werple.apana.org.au!news From: andrew@werple.apana.org.au (Andrew Herbert) Newsgroups: comp.os.386bsd.bugs Subject: Re: kernel writes to user space (was Re: Nethack) Date: 30 Jun 1993 18:43:09 +1000 Organization: werple public-access unix, Melbourne Lines: 12 Message-ID: <20rjmt$480@werple.apana.org.au> References: <20bfrm$le7@pdq.coe.montana.edu> <C990xF.43n@sneaky.lonestar.org> <1993Jun29.181749.5833@fcom.cc.utah.edu> <20qqgu$dj@werple.apana.org.au> <1993Jun30.022629.24466@uvm.edu> NNTP-Posting-Host: werple.apana.org.au wollman@trantor.emba.uvm.edu (Garrett Wollman) writes: >Isn't there a flag bit you can turn on on a *4*86, which tells the MMU >to behave in a sane manner? If so, then perhaps someone ought to >write code to take advantage of this, triggered by defined(i486) && Yep, the WP flag. This is a Good Thing, but the i386 code needs quite a cleanup before it can be used. Fixing things up to work with the 386 first is probably a more incremental (and thus less painful :) approach, given that the 386 needs to be supported anyway. Andrew