From owner-freebsd-hackers Tue Jul 14 17:31:32 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id RAA10861 for freebsd-hackers-outgoing; Tue, 14 Jul 1998 17:31:32 -0700 (PDT) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from mail.camalott.com (root@mail.camalott.com [208.203.140.2]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id RAA10854 for ; Tue, 14 Jul 1998 17:31:30 -0700 (PDT) (envelope-from joelh@gnu.org) Received: from detlev.UUCP (tex-152.camalott.com [208.229.74.152]) by mail.camalott.com (8.8.7/8.8.5) with ESMTP id TAA06090; Tue, 14 Jul 1998 19:32:01 -0500 Received: (from joelh@localhost) by detlev.UUCP (8.8.8/8.8.8) id TAA04219; Tue, 14 Jul 1998 19:31:13 -0500 (CDT) (envelope-from joelh) Date: Tue, 14 Jul 1998 19:31:13 -0500 (CDT) Message-Id: <199807150031.TAA04219@detlev.UUCP> To: archie@whistle.com CC: bf20761@binghamton.edu, freebsd-hackers@FreeBSD.ORG In-reply-to: <199807142333.QAA10092@bubba.whistle.com> (message from Archie Cobbs on Tue, 14 Jul 1998 16:33:12 -0700 (PDT)) Subject: Re: Wrong comment in pmap_bootstrap() about virtual_avail? From: Joel Ray Holveck Reply-to: joelh@gnu.org References: <199807142333.QAA10092@bubba.whistle.com> Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG >> BTW, what does "XXX' mean which appear many times elsewhere? > This just means "here is something that still needs to be looked at"... > the dream being that someday a fairy godmother/programmer will do a > vi `find /sys -type f -print | xargs grep -l XXX` > and resolve all those issues... More realistically, you often write this comment in the hopes that when you (or somebody else) is groveling over that bit of code to find why it breaks when used in an odd manner, that comment will stand out and give you a likely candidate. In reality, of course, bugs are not marked, since the use of "XXX" means that the programmer in question was thinking clearly enough to 1. write something that works even though it's not the right thing, and 2. notice it. "... and X never, never marks the spot." -- Indiana Jones, "Indiana Jones and the Last Crusade" See also the Jargon File (http://www.ccil.org/jargon) entries for XXX and FIXME. Happy hacking, joelh -- Joel Ray Holveck - joelh@gnu.org - http://www.wp.com/piquan Fourth law of programming: Anything that can go wrong wi sendmail: segmentation violation - core dumped To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message