Date: Thu, 6 Mar 2003 17:24:28 +0000 From: Bruce Cran <bruce@cran.org.uk> To: Khairil Yusof <kaeru@pd.jaring.my> Cc: current@freebsd.org Subject: Re: -O2 broke ppp NAT Message-ID: <20030306172428.GA3146@fourtytwo.brucec.backnet> In-Reply-To: <1046956926.26378.4.camel@daemon.home.net> References: <20030305220020.GA647@gw.tex.bogus> <1046956926.26378.4.camel@daemon.home.net>
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On Thu, Mar 06, 2003 at 09:22:06PM +0800, Khairil Yusof wrote: > On Thu, 2003-03-06 at 06:00, Nuno Teixeira wrote: > > > For the first time I compile current-p3 -> current-p4 with > > -march=pentium2 -O2 -mmmx -pipe and aparently everything works ok > > except ppp -nat. NAT just don't work on my network. All machines are > > able to ping except ftp, http, etc. > > I can confirm this. nat fails to work with -O2 for usr.sbin/ppp. It > compiles cleanly though, but I don't know enough about gcc optimizations > to find out how O2 might break it. > 387 (FPU) code generation seems to be broken in gcc 3.2.1 when -O2 is used. I can compile applications with no problems when -mfpmath=sse is added so that the 387 unit won't be used, but without it, applications crash. Note that since SSE support is enabled by the kernel, it probably wouldn't be a good idea to compile the kernel with -mfpmath=sse. Bruce Cran To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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