sendmail 5.64/sunos 4.0.3 problem?

[Ed Arnold]

We've come across a bug which appears to be an interaction between
sendmail 5.64 and SunOS 4.0.3.  Has anyone seen anything like this?

The system in question is a 4/280 running 4.0.3, serving 23 clients.  This
system had been running sendmail 5.61.  When 5.64 was installed, sendmail
processes serving incoming mail began hanging left and right, so we backed
off to 5.61.  It appears that the major difference is that 5.64 uses
flock() to implement file locks on the local system, rather than the
locking files (lf*) which used to be used.  Also, we're running 5.64 on
another 4/280 which is at 4.0.1, and the problem *has not* been observed
on that machine.

As usual, please email direct if you have any info, will summarize
if any useful info comes to light.

Ed Arnold * NCAR * POB 3000, Boulder, CO 80307-3000 * 303-497-1253(voice)
303-497-1137(fax) * era at ncar.ucar.edu [128.117.64.4] * era at ncario.BITNET
era at ncar.UUCP * Edward.Arnold at f809.n104.z1.FIDONET.ORG