For fun, I tried running your program on ASP (version 5.8.8, Binary build 819), and got a software exception.  That's not to say it's anything with your program of course, I'm sure it's just my memory configuration.

I narrowed it down to:

#!perl/bin/perl 
use strict; 
use warnings;
$|=1;

my ($list1);
print "Making list1\n";
for (0 .. 93132) {
    my $head = $list1;
    $list1 = ["a" x 40,\$head];
}
[download]

which does give the error.  When 93132 is changed to 93131, the error does NOT occur.

This is with Windows XP, and 512 MB of RAM.