sonewconn issue?

[Steve Kargl]

On Fri, Dec 11, 2015 at 09:24:00AM -0800, Navdeep Parhar wrote:
> On 12/11/2015 08:03, Steve Kargl wrote:
> > Last night my system became wedged.  Inspection of/var/log/messages
> > revealed 290 messages of the form
> >
> > Dec 10 19:27:49 troutmask kernel: sonewconn: pcb 0xfffff8000a76c4b0:
> >     Listen queue overflow: 16 already in queue awaiting
> >     acceptance (1 occurrences)
> >
> > During this time, I could connect to the webserver on the system.
> > ssh into the box would connect, but I never got an actaul session.
> > This morning I found the console unresponse.
> >
> > Any suggestions for identifying the rogue process?
> >
> 
> Try "netstat -aLnp tcp" and look at the "Listen" column to see which 
> sockets are backlogged.  Then "sockstat -4l" to identify the process 
> that owns the socket.
> 

Thanks for the suggestions.  I'll keep this in mind if the
problem re-appears.  Unfortunately, I had no access to the
box.  ssh didn't work.  console was unresponse.  No serial
console.

I forgot to mention that this is FreeBSD-current circa
Nov 9th, 2015.  The box gets updated about once a month
or so.

-- 
Steve