debugging a mbuf leak

[John Hickey]

One of our main servers here has a slow mbuf leak.  We are not sure what
is causing it at this point.  Does anyone have some pointers on how to 
dig further into this?

Mon Nov 23 13:19:15 PST 2009

 16364/2836/19200 mbufs in use (current/cache/total)
 928/2216/3144/132096 mbuf clusters in use (current/cache/total/max)
 512/1664 mbuf+clusters out of packet secondary zone in use
 (current/cache)
 0/135/135/66048 4k (page size) jumbo clusters in use
 (current/cache/total/max)
 0/0/0/33024 9k jumbo clusters in use (current/cache/total/max)
 0/0/0/16512 16k jumbo clusters in use (current/cache/total/max)
 5947K/5681K/11628K bytes allocated to network (current/cache/total)
 0/0/0 requests for mbufs denied (mbufs/clusters/mbuf+clusters)
 0/0/0 requests for jumbo clusters denied (4k/9k/16k)
 0/5/33280 sfbufs in use (current/peak/max)
 0 requests for sfbufs denied
 0 requests for sfbufs delayed
 0 requests for I/O initiated by sendfile
 0 calls to protocol drain routines
 
Mon Nov 23 13:24:21 PST 2009

 18085/2660/20745 mbufs in use (current/cache/total)
 923/2455/3378/132096 mbuf clusters in use (current/cache/total/max)
 512/1664 mbuf+clusters out of packet secondary zone in use
 (current/cache)
 0/135/135/66048 4k (page size) jumbo clusters in use
 (current/cache/total/max)
 0/0/0/33024 9k jumbo clusters in use (current/cache/total/max)
 0/0/0/16512 16k jumbo clusters in use (current/cache/total/max)
 6367K/6115K/12482K bytes allocated to network (current/cache/total)
 0/0/0 requests for mbufs denied (mbufs/clusters/mbuf+clusters)
 0/0/0 requests for jumbo clusters denied (4k/9k/16k)
 0/5/33280 sfbufs in use (current/peak/max)
 0 requests for sfbufs denied
 0 requests for sfbufs delayed
 0 requests for I/O initiated by sendfile
 0 calls to protocol drain routines