Date: Fri, 20 Jul 2001 09:34:44 +0930 From: Greg Lehey <grog@FreeBSD.org> To: "Karsten W. Rohrbach" <karsten@rohrbach.de> Cc: Gordon Tetlow <gordont@gnf.org>, Stewart Morgan <stewart@nameless-uk.com>, freebsd-stable@FreeBSD.ORG Subject: Re: PANIC in FFS -- Please HELP! Message-ID: <20010720093444.M24616@wantadilla.lemis.com> In-Reply-To: <20010719173242.O39506@mail.webmonster.de>; from karsten@rohrbach.de on Thu, Jul 19, 2001 at 05:32:42PM %2B0200 References: <000001c10fb2$ed07a0e0$0f01000a@saturn> <Pine.LNX.4.33.0107182000480.19368-100000@smtp.gnf.org> <20010719173242.O39506@mail.webmonster.de>
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On Thursday, 19 July 2001 at 17:32:42 +0200, Karsten W. Rohrbach wrote: > Gordon Tetlow(gordont@gnf.org)@2001.07.18 20:04:41 +0000: >> On Wed, 18 Jul 2001, Stewart Morgan wrote: >> >>> CPUTYPE=i686 >>> >>> CFLAGS=-O -pipe -felide-constructors -mcpu=pentiumpro -march=pentiumpro >>> -ffast-math -felide-constructors -fexpensive-optimizations >>> -funroll-loops -funroll-all-loops -fmemoize-lookups -fsave-memoized >>> -fno-strength-reduce >>> >>> CXXFLAGS+=-O -pipe -felide-constructors -mcpu=pentiumpro >>> -march=pentiumpro -ffast-math -felide-constructors >>> -fexpensive-optimizations -funroll-loops -funroll-all-loops >>> -fmemoize-lookups -fsave-memoized -fno-strength-reduce >>> >>> COPTFLAGS=-O -pipe -felide-constructors -mcpu=pentiumpro >>> -march=pentiumpro -ffast-math -felide-constructors >>> -fexpensive-optimizations -funroll-loops -funroll-all-loops >>> -fmemoize-lookups -fsave-memoized -fno-strength-reduce >>> >>> >> >> 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. > > has anybody tried gcc-3.0's code generation yet? Yes. It's not industry strength yet. Greg -- See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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