I've run into a problem with the 2008-07-25 version of ksh93 on FreeBSD 7.0. In a login shell, directing the output of any built-in command to a pipe causes ksh to hang.
For example: echo x | cat Note that this only occurs in a login shell using the console. A subshell works fine. This problem does not appear using the 2008-02-02 version. I am attaching ktrace output for the above example.
kdump.out
Description: Binary data
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