10.3 update 5 + Inetd problem

[Andrea Brancatelli]

Hello everybody, 

we're having a curious issue with a machine we recently upgraded to
10.3-RELEASE-p5. 

The machine is a pretty "stupid" MX with just sendmail running and
delivering locally mails to an LMTP instance (dbmail lmtp). For various
reasons we don't have a "demonized" LMTPd but we use Inetd to spawn it
on demand. 

After we upgraded the machine from 10.2 to 10.3 all of a sudden the
lmtpd process started (randomly) getting (forever) stuck with 100% cpu
usage in _"uwait"_ state. 

On a twin machine with the same setup that is not yet upgraded
(10.1-RELEASE-p3), with the same "ports" versions and identical setup
the problem never happens. 

Given that I'm not too much into GDB, Dtrace and all that stuff, what
can I do to try to diagnose the problem better? 

Thank you very much.

-- 

Andrea Brancatelli
Schema31 S.p.a.
Responsabile IT

ROMA - BO - FI - PA 
ITALY
Tel: +39.06.98.358.472
Cell: +39.331.2488468
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Società del Gruppo SC31 ITALIA