Date: Tue, 18 Apr 1995 16:35:05 -0700 (PDT) From: Frank Mayhar <frank@exit.com> To: wollman@halloran-eldar.lcs.mit.edu (Garrett Wollman) Cc: rgrimes@gndrsh.aac.dev.com, current@FreeBSD.org Subject: Re: Memory fill patterns Message-ID: <199504182335.QAA11703@exit.com> In-Reply-To: <9504181908.AA00747@halloran-eldar.lcs.mit.edu> from "Garrett Wollman" at Apr 18, 95 03:08:34 pm
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> Unfortunately, Rod missed the point, or rather, he saw one of them and > missed the rest. Here is the rationale for the choice of 0xdeadbeef > (or 0xdeadbee1): > > 4) When used as an address, it's unlikely to be mapped. Well, 4) is actually not true, at least for the version of 80x86-based SVR4.2 I hack at work. 0xdeadbeef, or anything in the range 0xd0000000 - 0xdfffffff is very, very often a valid kernel address. I don't know how this maps to FreeBSD (not very well, I suspect), but it's a consideration. -- Frank Mayhar frank@exit.com
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