repeatable crash generating two column index

I'm working the example in "Postgresql Developer's Handbook", page
218.  I can create an index on a single column no problem, but when I
try to create a index over two columns ->

CREATE INDEX idx_id_perftest ON perftest (id, astring);

the backend crashes every time.  I see the following in the logs...

2002-07-03 08:33:29 DEBUG:  server process (pid 53454) was terminated by signal 11
2002-07-03 08:33:29 DEBUG:  terminating any other active server processes
2002-07-03 08:33:29 DEBUG:  all server processes terminated; reinitializing shared memory and semaphores

I can create/drop a single column index after the crash/recovery no problem.

I am using FreeBSD 4.6, Postrgresql 7.2.1.  I'm not including the code
because it's copyright but can forward to a debugger.  The code just
generates 10 million columns with an ID, and a random number and
string...

mvh=> select * from perftest limit 10;
 id | astring  | anumber
----+----------+----------
  1 | pIscM5Kh | 35888787
  2 | b8FSfFCU |  7206043
  3 | 8lkWXbbj | 48537449
  4 | DqLhIiZq | 15229027
  5 | ic31Ckk9 |  3910172
  6 | Gskx5Fqk | 11816527
  7 | saifh1ia | 26180953
  8 | mlbmdya2 |  5189701
  9 | jfOB6cVe | 34855048
 10 | cAUg0yIo | 91032333
(10 rows)

- Mike H.