From owner-freebsd-stable Fri Jul 20 3:57:44 2001 Delivered-To: freebsd-stable@freebsd.org Received: from mail.squidge.com (ns1.squidge.com [195.10.252.5]) by hub.freebsd.org (Postfix) with ESMTP id 1589937B401 for ; Fri, 20 Jul 2001 03:57:40 -0700 (PDT) (envelope-from stewart@nameless-uk.com) Received: from saturn (host217-32-155-242.hg.mdip.bt.net [217.32.155.242]) (authenticated) by mail.squidge.com (8.11.3-MySQL/8.11.2) with ESMTP id f6KAvSx50009 (using TLSv1/SSLv3 with cipher RC4-MD5 (128 bits) verified NO); Fri, 20 Jul 2001 11:57:35 +0100 (BST) (envelope-from stewart@nameless-uk.com) Reply-To: From: "Stewart Morgan" To: "'Gordon Tetlow'" Cc: , "'Greg Lehey'" Subject: RE: PANIC in FFS -- Please HELP! [resolved] Date: Fri, 20 Jul 2001 10:58:35 +0100 Organization: Nameless-UK Message-ID: <008301c11102$8ec2ea70$0f01000a@saturn> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.2605 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4522.1200 In-Reply-To: Importance: Normal Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG > I feel obligated to point out the warning from /etc/defaults/make.conf: > > # CFLAGS controls the compiler settings used when compiling C code. > # Note that optimization settings above -O (-O2, ...) are not recommended > # or supported for compiling the world or the kernel - please revert any > # nonstandard optimization settings to "-O" before submitting bug reports > # to the developers. > > Please try your setup with the a "normal" CFLAGS (ie -O -pipe) and then > see if you get a reproducible panic. If you do, then report it to the > mailing list. Otherwise, you are a victim of a *known* bad code optimizer > which you were warned about. > > -gordon *blush* For some reason, I keep forgetting that all -O* does is to define the various -f* entries. *sigh* More coffee required :) Does anybody know which, if any, optimisations actually work with _no_ ill effects? I guess the -march and -mcpu options are safe? Otherwise, why are they in -stable. But the others? Stewart. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message