Re: loopback interface broken on current

At 11:48 AM 1/1/2013, Gleb Smirnoff wrote:
>On Tue, Jan 01, 2013 at 02:39:58AM -0800, Manfred Antar wrote:
>M> >On Thu, Dec 27, 2012 at 09:05:26AM -0800, Manfred Antar wrote:
>M> >M> For the past few days the loopback  interface 127.0.0.1 is broken on current.
>M> >M> The last good kernel that works for me is  r244662: Mon Dec 24 06:43:07 PST 2012
>M> >M> Here are some of the errors from current today:
>M> >
>M> >Can you please track this down to the specific revision that made the
>M> >regression? The timeframe is samll, so binary search probably won't 
>M> >take long time.
>M> Hi
>M> I'm not sure how to do this :(
>M> I just switched from CVS to SVN 2 weeks ago.
>M> I still have a current CVS tree on my machine.
>M> I guess i can try to check out a /usr/src/sys from the 25 on and see what changes were made.
>M> I'm just learning SVN so not sure how to do it with that.
>
>With SVN you don't need to care about dates, you just go through the
>sequential list of revisions. So you just seek between r244662 and the
>most recent revision tht didn't work for you. On first step you
>divide the bad revision (let it be 244768) and good one r244662:
>
>(244662 + 244768)/2 = 244715
>
>Ok, it is 244715. Let's take it and test:
>
>svn up -r 244715
>
>If it is fine, you check the one in the middle between 244715and
>244768. Otherwise you chek in between 244715 and  244662. And so on...
>
>-- 
>Totus tuus, Glebius.

OK
I tracked it down to revision 244678
244677 works
the files involved are:
(src)5012}svn up -r 244678
Updating '.':
U    sys/netinet/in.c
U    sys/netinet6/in6.c
Updated to revision 244678

It seems like the ip6 for localhost is configured but ip4 isn't:
Setting hostname: pozo.com.
ifa_del_loopback_route: deletion failed: 3
ifconfig: ioctl (SIOCAIFADDR): File exists
bge0: link state changed to DOWN
ifa_del_loopback_route: deletion failed: 3

lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
        options=600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6>
        inet6 ::1 prefixlen 128 
        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2 
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>

 From 244677:
Setting hostname: pozo.com.

Starting Network: lo0 bge0.
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
        options=600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6>
        inet 127.0.0.1 netmask 0xff000000 
        inet6 ::1 prefixlen 128 
        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2 
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>

Manfred

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