console hang on 750 (4.2bsd)

[Steven Bellovin]

When we boot a newly-installed 750, it usually hangs trying to write
to the console until someone hits CR.  This happens in single-user reboots
(before printing the stty info in /.profile), and in automatic reboots (when
executing /etc/rc).  Has anyone seen anything like this before?  There are
5 other 750s and 2 780s running 4.2bsd in our machine room; none have ever
behaved like this.

Please reply by mail; I'm so far behind in reading unix-wizards that I may
not see an answer posted here.

		--Steve Bellovin
		ATT Bell Laboratories MH x5886
		(most of BTL)!ulysses!smb
		ulysses!smb at berkeley