serious packet routing issue causing ntpd high load?

[Li, Qing]

Okay, I just reproduced the problem. The strange thing is the routing
message appears to be endless, but if I exit "route monitor" and 
restart it, the message disappears. That indicates to me it is not the
kernel that is generating the routing message continuously, but maybe
it is a socket buffer issue ? Otherwise when "route monitor" is resumed
the messages should also resume, which is not the case here.

Of course why the DNS message being generated in FIB <1> triggers a 
RTM_MISS in FIB <2> is an issue and I am looking into it as well.

--Qing


> -----Original Message-----
> From: Steven Hartland [mailto:killing at multiplay.co.uk]
> Sent: Monday, October 10, 2011 2:51 AM
> To: Li, Qing; freebsd-stable at freebsd.org
> Cc: liv3d at multiplay.co.uk
> Subject: Re: serious packet routing issue causing ntpd high load?
> 
> ----- Original Message -----
> From: "Li, Qing" <qing.li at bluecoat.com>
> 
> >> RTM_MISS: Lookup failed on this address: len 184, pid: 0, seq 0,
> errno
> >> 0, flags:<DONE>
> >> locks:  inits:
> >> sockaddrs: <DST>
> >>  ::A.B.C.D
> >>
> >
> > Would it be possible for you to email me what exactly does
> "::A.B.C.D"
> > map into WRT your system or infrastructure ?
> 
> Sorry for the slow reply been out of the country.
> 
> All the hosts are local machines same /24 connecting to the server for
> mysql. It seems to be that every packet either to or from for the mysql
> server is generating an RTM_MISS.
> 
> > And are you able to share your "ifconfig -a" and "netstat -rn" output
> > with me privately ?
> 
> On its way.
> 
>     Regards
>     Steve
> 
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