Date: Fri, 24 May 2002 14:50:27 +0300 From: Giorgos Keramidas <keramida@FreeBSD.ORG> To: Fred Souza <cseg@storming.org> Cc: stable@FreeBSD.ORG Subject: Re: Bad TCP checksum Message-ID: <20020524115027.GB857@hades.hell.gr> In-Reply-To: <20020523081803.GA1730@torment.storming.org> References: <20020523081803.GA1730@torment.storming.org>
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[ freebsd-hackers removed from Cc: - please do not cross-post ] On 2002-05-23 11:18, Fred Souza wrote: > > 19:16:55.759657 me.50441 > somehost.http: S [bad tcp cksum fffe!] ... > Since I saw once something similar happening, I think it's good to > mention that these lines exist in my /etc/make.conf: > > CFLAGS= -O2 > COPTFLAGS+= -O2 > CPUTYPE=k6-2 It was probably me that you show mentioning it. I've tried to test differences in speed with -O2 for both the userland and kernel, and failed as you describe. This comment from make.conf might help you a bit in choosing optimizations flags: # 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. # Note also that at this time the -O2 setting is known to produce BROKEN # CODE on the Alpha platform. -- Giorgos Keramidas - http://www.FreeBSD.org keramida@FreeBSD.org - The Power to Serve To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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