Date: Mon, 28 Sep 2009 22:42:57 +0200 (CEST) From: Alexander Best <alexbestms@math.uni-muenster.de> To: Kevin Oberman <oberman@es.net> Cc: Dag-Erling =?iso-8859-1?Q?Sm=F8rgrav?= <des@des.no>, freebsd-current@FreeBSD.org, Andriy Gapon <avg@icyb.net.ua> Subject: Re: ipv6 related warnings Message-ID: <permail-200909282042571e86ffa800001c4f-a_best01@message-id.uni-muenster.de> In-Reply-To: <20090928164051.BBDC51CC13@ptavv.es.net>
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Kevin Oberman schrieb am 2009-09-28: > > Date: Mon, 28 Sep 2009 15:24:02 +0200 (CEST) > > From: Alexander Best <alexbestms@math.uni-muenster.de> > > Sender: owner-freebsd-current@freebsd.org > > Dag-Erling Sm=F8rgrav schrieb am 2009-09-28: > > > Andriy Gapon <avg@icyb.net.ua> writes: > > > > Dag-Erling Sm=F8rgrav <des@des.no> writes: > > > > > No, you can build a *kernel* without IPv6, just not userland. > > > > > Parts > > > > > of userland will respect WITHOUT_INET6, others won't, and > > > > > others > > > > > yet > > > > > will build but not run correctly. > > > > So shouldn't those disrespecting parts of userland be fixed? > > > Why? In most (userland) cases, it takes more work to write code > > > that > > > supports IPv4 but not IPv6 than to write code that supports both. > > > > Besides, returning to the original post, those messages weren't > > > > there > > > > just a few days ago, this is a new addition. > > > ...if by "just a few days" you mean "two weeks". If this really > > > is > > > "a > > > new addition", it dates back to one of hrs@'s commits on > > > 2009-09-13. > > > However, the most likely cause of the OP's problem is incorrect > > > use > > > of > > > mergemaster. If he did indeed run "mergemaster -p" and > > > "mergemaster > > > -i", but nothing more, his /etc is completely out of sync. > > mergemaster -p and mergemaster -i aren't sufficient to sync /etc > > with > > /usr/src/etc? but that's what UPDATING recommends. > mergemaster -i (or, for sanity, -iUF) is adequate as long as the > proper > things are done when mergemaster notes a difference to be merged. But > there is nothing "wrong" with using just '-i'. The real question is > whether you install, delete, or merge any of the changes mergemaster > reports. > If you always install, you will probably break localizations. If you > always skip or delete, you will end up with a /etc that is not going > to > work right. > mergemaster is a wonderful tool as anyone who ran FreeBSD 2.2 or 3 > can > tell you, but it is not a panacea. You still need to take enough time > to > properly evaluate each merge and DTRT. > (And, to be clear, I have no reason to assume that you did not DTRT.) just to clear things up. i just did `mergemaster -i` to see which files fro= m /etc and /usr/src/etc i'm getting asked about (which means they differ). here's the list: --- /boot/device.hints 2009-08-03 18:52:42.000000000 +0200 +++ ./boot/device.hints 2009-09-28 22:21:46.000000000 +0200 --- /etc/bluetooth/hcsecd.conf 2009-08-12 15:19:10.000000000 +0200 +++ ./etc/bluetooth/hcsecd.conf 2009-09-28 22:21:45.000000000 +0200 --- /etc/bluetooth/hosts 2009-05-03 22:03:57.000000000 +0200 +++ ./etc/bluetooth/hosts 2009-09-28 22:21:45.000000000 +0200 --- /etc/mail/freebsd.mc 2009-09-12 11:17:23.000000000 +0200 +++ ./etc/mail/freebsd.mc 2009-09-28 22:21:46.000000000 +0200 --- /etc/mail/freebsd.cf 2009-09-12 11:17:28.000000000 +0200 +++ ./etc/mail/freebsd.cf 2009-09-28 22:21:46.000000000 +0200 --- /etc/mail/freebsd.submit.cf 2009-09-12 11:08:55.000000000 +0200 +++ ./etc/mail/freebsd.submit.cf 2009-09-28 22:21:46.000000000 +0200 --- /etc/mail/sendmail.cf 2009-09-27 16:35:24.000000000 +0200 +++ ./etc/mail/sendmail.cf 2009-09-28 22:21:46.000000000 +0200 --- /etc/mail/submit.cf 2009-09-27 16:35:24.000000000 +0200 +++ ./etc/mail/submit.cf 2009-09-28 22:21:46.000000000 +0200 --- /etc/crontab 2009-09-24 18:13:24.000000000 +0200 +++ ./etc/crontab 2009-09-28 22:21:45.000000000 +0200 --- /etc/devd.conf 2009-09-12 02:38:27.000000000 +0200 +++ ./etc/devd.conf 2009-09-28 22:21:45.000000000 +0200 --- /etc/ftpusers 2009-06-13 22:35:46.000000000 +0200 +++ ./etc/ftpusers 2009-09-28 22:21:45.000000000 +0200 --- /etc/group 2009-09-08 11:23:58.000000000 +0200 +++ ./etc/group 2009-09-28 22:21:45.000000000 +0200 --- /etc/hosts 2009-08-16 16:59:41.000000000 +0200 +++ ./etc/hosts 2009-09-28 22:21:45.000000000 +0200 --- /etc/login.conf 2009-07-01 12:49:55.000000000 +0200 +++ ./etc/login.conf 2009-09-28 22:21:45.000000000 +0200 --- /etc/motd 2009-09-27 16:39:30.000000000 +0200 +++ ./etc/motd 2009-09-28 22:21:45.000000000 +0200 --- /etc/shells 2009-09-27 17:19:31.000000000 +0200 +++ ./etc/shells 2009-09-28 22:21:45.000000000 +0200 --- /etc/sysctl.conf 2009-08-16 13:45:47.000000000 +0200 +++ ./etc/sysctl.conf 2009-09-28 22:21:45.000000000 +0200 --- /etc/ttys 2009-06-16 15:14:43.000000000 +0200 +++ ./etc/ttys 2009-09-28 22:21:45.000000000 +0200 --- /etc/master.passwd 2009-09-08 11:23:58.000000000 +0200 +++ ./etc/master.passwd 2009-09-28 22:21:45.000000000 +0200 so to me this means that apart from these files /etc and /usr/src/etc are i= n sync and i'm quite sure none of these files have anything to do with ipv6 apart from sysctl.conf, but as you can see: --- /etc/sysctl.conf 2009-08-16 13:45:47.000000000 +0200 +++ /usr/src/etc/sysctl.conf 2009-09-23 21:55:11.000000000 +0200 @@ -7,12 +7,3 @@ # Uncomment this to prevent users from seeing information about processes that # are being run under another UID. #security.bsd.see_other_uids=3D0 -# -kern.ipc.shmmax=3D67108864 -kern.ipc.shmall=3D32768 -vfs.usermount=3D1 -net.inet.tcp.blackhole=3D1 -net.inet.udp.blackhole=3D1 -hw.snd.vpc_autoreset=3D0 -kern.ipc.shm_allow_removed=3D1 -compat.linux.osrelease=3D2.6.16 i have nothing ipv6 related in that file. as another reference i'm posting all the options i have in my /etc/src.conf= : WITHOUT_ACCT=3Dtrue WITHOUT_AMD=3Dtrue WITHOUT_APM=3Dtrue WITHOUT_ATM=3Dtrue WITHOUT_AUDIT=3Dtrue WITHOUT_BIND=3Dtrue WITHOUT_BSNMP=3Dtrue WITHOUT_CDDL=3Dtrue WITHOUT_CTM=3Dtrue WITHOUT_FLOPPY=3Dtrue WITHOUT_FREEBSD_UPDATE=3Dtrue WITHOUT_GAMES=3Dtrue WITHOUT_GPIB=3Dtrue WITH_IDEA=3Dtrue WITHOUT_INET6=3Dtrue WITHOUT_IPFILTER=3Dtrue WITHOUT_IPFW=3Dtrue WITHOUT_IPX=3Dtrue WITHOUT_JAIL=3Dtrue WITHOUT_LPR=3Dtrue WITHOUT_MAILWRAPPER=3Dtrue WITHOUT_NCP=3Dtrue WITHOUT_NDIS=3Dtrue WITHOUT_NETCAT=3Dtrue WITHOUT_NIS=3Dtrue WITHOUT_NLS=3Dtrue WITHOUT_NLS_CATALOGS=3Dtrue WITHOUT_NS_CACHING=3Dtrue WITHOUT_PAM=3Dtrue WITHOUT_PF=3Dtrue WITHOUT_PORTSNAP=3Dtrue WITHOUT_PPP=3Dtrue WITHOUT_QUOTAS=3Dtrue WITHOUT_RCMDS=3Dtrue WITHOUT_RCS=3Dtrue WITHOUT_ROUTED=3Dtrue WITHOUT_SLIP=3Dtrue WITHOUT_TCSH=3Dtrue WITHOUT_TELNET=3Dtrue WITHOUT_WPA_SUPPLICANT_EAPOL=3Dtrue WITHOUT_CDDL=3Dtrue so...as far as i can see there's no way of building an ipv6-unaware world a= ny longer. it seems like the WITHOUT_INET6 option has become obsolete. if this is the case the option should completely be removed from the whole source and defining it should no longer trigger any ifdef's. also it should= be removed from `man src.conf` and a note should be added to UPDATING telling users that WITHOUT_INET6 won't work any longer. if however WITHOUT_INET6 as an option should remain supported and infact le= t the user build an ipv6-unaware world this should be fixed imo. cheers. alex
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