🚀 go-pugleaf

I am trying to get GNU Emacs to work on a VAX 8820 running USG 5-3.

The problem I am running into now has to do with the total locking up
of my terminal when using m-x shell.  From the screen point of view
the *shell* window has been opened, loading ... done has printed and
the shell prompt is showingin the buffer window.  The only key that causes
any response is the break on my hp2392a (vt100 mode) which causes
Emacs to print Quit in the lower right hand corner.

I first traced the lisp code which spawns the shell.  THe terminal locks
with the debugger printing the following:

Return value: #<process shell>
  apply(start-process "shell" #<buffer *shell*> "/usr/local/emacs/etc/env" "TERMCAP=emacs:co#80:tc=unknown:" "TERM=emacs" "EMACS=t" "-" "/u1/pbh/bin/kshell" "-i")
* (setq ...)
* (if ...)
* (save-excursion ...)
* (let ...)
* make-shell("shell" "/u1/pbh/bin/kshell" nil "-i")
* apply(make-shell "shell" "/u1/pbh/bin/kshell" nil "-i")
* (switch-to-buffer ...computing arguments...)
* (let* ...)
* shell()
  call-interactively(shell)
  execute-extended-command(nil)
* call-interactively(execute-extended-command)


Trying to get more information I traced using sdb the C code, and it seems that
the shell is made succesfully but emacs goes into an infinite loop??
An important note is that while in Fset an error is printed that
does not appear with out sdb, sample of output below:

sdb> s
store_symval_forwarding:494:  {
sdb> s
0x2170b in store_symval_forwarding:626:  }
sdb> s
0x21621 in store_symval_forwarding:494:  {
sdb> s
store_symval_forwarding:498:   switch (XTYPE (valcontents))
sbd> s
readregs1(): read error on r3;
                             0x216f2 in store_symval_forwarding:624:    
XSYMBOL(sym)->value = newval;
sdb>

Once the error was on r4 instead.

Has anyone had similar problems, Has anyone got emacs working on
a VAX 8820, on a VAX 8820 running USG 5-3? Does anyone have anyideas of 
the problem.

Thanks in advance!

Paul Hart
phart@photon.tamu.edu