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Date:      Mon, 17 Mar 2003 11:00:25 -0500
From:      "James F. Hranicky" <jfh@cise.ufl.edu>
To:        freebsd-questions@freebsd.org
Subject:   INND hangs after upgrade to 4.8PRE
Message-ID:  <20030317160025.4F7636A85@mail.cise.ufl.edu>
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Here's the sequence of events:

    - upgrade news server to 4.8PRE

    - inn starts throwing errors due to Berkeley DB upgrade from 3.2 to 4.0

    - upgrade from inn 2.3.1 to inn 2.3.4, compiling against new Berkeley DB
      version

    - rebuild OVDB with makehist

    - inn runs fine for a while

    - had to shutdown news server due to chilled water outage in building

    - bring news server back up, innd hangs

    - when trying to connect, the connection succeeds temporarily, but no
      banner is received back from innd

    - after a few minutes, there is no ACK from the machine on that
      port in response to a SYN, it appears as if the port is blocked
      by a firewall (which it isn't, behavior is the same on localhost)

    - ktrace/strace show innd doing nothing but selecting/timing out on 
      fd 0, but no other useful info (that I can find), although it's
      hard to trace due to the fact innd must be started by inndstart, 
      which is setuid

    - tried MAXUSERS=0 and MAXUSERS=512, same behavior

    - netstat -m output (with MAXUSERS=512):

            74/192/34816 mbufs in use (current/peak/max):
                    67 mbufs allocated to data
                    6 mbufs allocated to packet headers
                    1 mbufs allocated to fragment reassembly queue headers
            66/70/8704 mbuf clusters in use (current/peak/max)
            188 Kbytes allocated to network (0% of mb_map in use)
            0 requests for memory denied
            0 requests for memory delayed
            0 calls to protocol drain routines
            
    - lsof reports 507 open files

Config files available on request.

Any help appreciated.

----------------------------------------------------------------------
| Jim Hranicky, Senior SysAdmin                   UF/CISE Department |
| E314D CSE Building                            Phone (352) 392-1499 |
| jfh@cise.ufl.edu                      http://www.cise.ufl.edu/~jfh |
----------------------------------------------------------------------

"Given a choice between a complex, difficult-to-understand, disconcerting
 explanation and a simplistic, comforting one, many prefer simplistic
 comfort if it's remotely plausible, especially if it involves blaming
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                                                -- Bob Lewis, _Infoworld_

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