IPv6 breakage in recent changes - Re: cvs commit: src/sys/netinet tcp_syncache.c

[Kip Macy]

On 3/16/07, Kip Macy <kip.macy at gmail.com> wrote:
> I didn't realize that FreeBSD uses ipv6 by default, so X11 should be
> using it. However, connections take a long long time now. Previously
> it took 1s for an xterm to come up, now it takes 20 - 30.
>
> Andre - if you're unable to isolate the problem please back out your
> recent changes.
>
>                -Kip

I've narrowed it down slightly further, ipv4 works just fine. ipv6
connections, at least over loopback (too tired to configure the
interfaces now), take 75 seconds to occur. So disabling ipv6 should
"fix" the problem. I'll ask gnn how he feels about that :-).


                          -Kip




>
>
> On 3/16/07, Kip Macy <kmacy at freebsd.org> wrote:
> > kmacy       2007-03-17 06:40:09 UTC
> >
> >   FreeBSD src repository
> >
> >   Modified files:
> >     sys/netinet          tcp_syncache.c
> >   Log:
> >   Fix the most obvious of the bugs introduced by recent syncache changes
> >
> >   - *ip is not initialized in the case of inet6 connection, but ip->ip_len is
> >     being changed anyway
> >
> >   Now the question is, why does it think an ipv4 connection is an ipv6 connection?
> >   xemacs still doesn't work over X11 forwarding, but the kernel no longer panics.
> >
> >   Revision  Changes    Path
> >   1.106     +3 -0      src/sys/netinet/tcp_syncache.c
> >
>