From owner-freebsd-bugs@FreeBSD.ORG Mon Aug 17 14:26:17 2009 Return-Path: Delivered-To: freebsd-bugs@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id B4BD0106568C for ; Mon, 17 Aug 2009 14:26:17 +0000 (UTC) (envelope-from linimon@lonesome.com) Received: from mail.soaustin.net (lefty.soaustin.net [66.135.55.46]) by mx1.freebsd.org (Postfix) with ESMTP id 980888FC57 for ; Mon, 17 Aug 2009 14:26:17 +0000 (UTC) Received: by mail.soaustin.net (Postfix, from userid 502) id 272E88C078; Mon, 17 Aug 2009 09:09:22 -0500 (CDT) Date: Mon, 17 Aug 2009 09:09:22 -0500 From: Mark Linimon To: Peter Vereshagin Message-ID: <20090817140922.GA2365@lonesome.com> References: <200908171137.n7HBbYPW005869@freefall.freebsd.org> <20090817130413.GA3314@screwed.box> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090817130413.GA3314@screwed.box> User-Agent: Mutt/1.5.18 (2008-05-17) Cc: freebsd-bugs@FreeBSD.org, gavin@FreeBSD.org Subject: Re: bin/137869: cc --fast-math leads to nan% CPU consumption in ps and top X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 17 Aug 2009 14:26:17 -0000 On Mon, Aug 17, 2009 at 06:04:13PM +0500, Peter Vereshagin wrote: > I know such the setting may be unsupported, my question is unobscurity > and unobviousity of such a thing during the system 'world' upgrade, so > this can scare any admin like me What we mean by being "unsupported" is that "if you break it, you get to diagnose why it breaks" :-) Changing compiler flags, like changing the src tree itself (or running -current), comes with the implicit contract that you need to understand enough C and debugging techniques to be able to diagnose and contribute fixes. mcl