bug_report() gives "Maxima encountered a Lisp error"



Hi to all,
Below is the output which seems not correct.
--
alex

[alex@lan108 maxima]$ maxima

Maxima 5.9.1 http://maxima.sourceforge.net
Using Lisp Kyoto Common Lisp GCL 2.6.5 (aka GCL)
Distributed under the GNU Public License. See the file COPYING.
Dedicated to the memory of William Schelter.
This is a development version of Maxima. The function bug_report()
provides bug reporting information.
(%i1) bug_report();


The Maxima bug database is available at
    http://sourceforge.net/tracker/?atid=104933&group_id=4933&func=browse
Submit bug reports by following the 'Submit New' link on that page.
Please include the following build information with your bug report:
-------------------------------------------------------------

Maxima version: 5.9.1
Maxima encountered a Lisp error:

 Error in CATCH [or a callee]: Caught fatal error [memory may be damaged]

Automatically continuing.
To reenable the Lisp debugger set *debugger-hook* to nil.
(%i2)