netstat errors after upgrading 4.9 -> 5.3

[Tomasz Konefal]

Eric W. Bates wrote:
> [sigh] I have created the same problem on 2 machines.
> 
> After an upgrade from 4.x to 5.3-p10 netstat will no longer display the 
> routing table:
> 
>  ** root at fw ** ~ ** Fri Apr 29 16:59:37
> # netstat -nr
> netstat: kvm not available
> Routing tables
> rt_tables: symbol not in namelist
> 
> During the upgrade, I deleted all of /usr/src/*.  And followed the rest 
> of the procedures outlined in /usr/src/UPGRADING.  I have also deleted 
> /kernel* and /modules* (random thot that perhaps the wrong kvm's were 
> being loaded).
> 
> As far as I can tell, the netstat dump of the routing tables is the only 
> failure.

i have these exact same symptoms on a box i recently upgraded from 5.2.1 
to 5.4-RC3.  admittedly, i don't know whether netstat worked on 5.2.1, 
but that was a fresh install with only the security updates applied.

cheers,
   Tomasz