[racket-dev] Segmentation fault 11?

I'm seeing weirdness when trying to import Dave Herman's memoize
package on Racket 5.3:

;;;;;;;;;;;
> (require (planet dherman/memoize:3:1))
WARNING: collected information for key multiple times: '(index-entry
(mod-path "(planet schematics/sake)")); values: Segmentation fault: 11
;;;;;;;;;;;

I'm on a Macbook Air running 10.7.




The following includes the stack trace I'm seeing under gdb.  What
else can I do to help with debugging information?

#################################
(gdb) 204-99-169-77:~ dyoo$ gdb racket
GNU gdb 6.3.50-20050815 (Apple version gdb-1820) (Sat Jun 16 02:40:11 UTC 2012)
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "x86_64-apple-darwin"...Reading symbols for
shared libraries ... done

(gdb) handle SIGSEGV nostop noprint
Signal        Stop	Print	Pass to program	Description
SIGSEGV       No	No	Yes		Segmentation fault
(gdb) run
Starting program: /Applications/Racket v5.3/bin/racket
Welcome to Racket v5.3.
> (require (planet dherman/memoize:3:1))
Reading symbols for shared libraries .. done
Reading symbols for shared libraries . done
WARNING: collected information for key multiple times: '(mod-path
"(planet schematics/sake)"); values: '#(("Build files") (mod-path
"(planet schematics/sake)") (2)
#<path:/Users/dyoo/Library/Racket/planet/300/5.3/cache/schematics/sake.plt/1/0/doc/sake/Build_files.html>
#t) '#(("The Sake API") (mod-path "(planet schematics/sake)") (3)
#<path:/Users/dyoo/Library/Racket/planet/300/5.3/cache/schematics/sake.plt/1/0/doc/sake/The_Sake_API.html>
#t)
WARNING: collected information for key multiple times: '(index-entry
(mod-path "(planet schematics/sake)")); values:
Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x2566d2f4
0x002142fb in chaperone_struct_ref ()
(gdb) bt
#0  0x002142fb in chaperone_struct_ref ()
#1  0x001ad91c in setup_graph_table ()
#2  0x001ad934 in setup_graph_table ()
#3  0x001ad74b in setup_graph_table ()
#4  0x001ad934 in setup_graph_table ()
#5  0x001ad74b in setup_graph_table ()
#6  0x001ad74b in setup_graph_table ()
#7  0x001ad6c0 in setup_graph_table ()
#8  0x001b6efb in print_to_string ()
#9  0x001b7d55 in print_to_string_k ()
#10 0x00075b1e in scheme_top_level_do_worker ()
#11 0x00075d48 in scheme_top_level_do ()
#12 0x0004743d in error_write_to_string_w_max ()
#13 0x00047566 in scheme_make_provided_string ()
#14 0x001fd398 in scheme_do_format ()
#15 0x001fd9b7 in sch_eprintf ()
#16 0x00367d6d in ?? ()
#17 0x0007bf7f in _apply_native ()
#18 0x0008206d in scheme_apply_chaperone ()
#19 0x0006043b in _scheme_apply_multi_from_native ()
#20 0x011f663c in ?? ()
#21 0x0005ccfe in scheme_do_eval ()
#22 0x00060329 in _scheme_apply_multi_from_native ()
#23 0x011f89a8 in ?? ()
#24 0x0005ccfe in scheme_do_eval ()
#25 0x00060529 in _scheme_apply_from_native ()
#26 0x00366f20 in ?? ()
#27 0x00357ac4 in ?? ()
#28 0x0005ccfe in scheme_do_eval ()
#29 0x00060329 in _scheme_apply_multi_from_native ()
#30 0x00367962 in ?? ()
#31 0x00357ac4 in ?? ()
#32 0x0005ccfe in scheme_do_eval ()
#33 0x0007d718 in scheme_finish_apply_for_prompt ()
#34 0x0007d8cc in scheme_apply_for_prompt ()
#35 0x0008838f in call_with_prompt ()
#36 0x003509d3 in ?? ()
#37 0x003551d4 in ?? ()
#38 0x00356e84 in ?? ()
#39 0x0005ccfe in scheme_do_eval ()
#40 0x0007d718 in scheme_finish_apply_for_prompt ()
#41 0x0007d8cc in scheme_apply_for_prompt ()
#42 0x0008838f in call_with_prompt ()
#43 0x003509d3 in ?? ()
#44 0x011f6364 in ?? ()
#45 0x0005ccfe in scheme_do_eval ()
#46 0x000760ba in apply_k ()
#47 0x00075c78 in scheme_top_level_do_worker ()
#48 0x00075ee4 in scheme_apply_thread_thunk ()
#49 0x00243c4d in start_child ()
#50 0x00247b5d in make_subprocess ()
#51 0x00247d96 in scheme_thread_w_details ()
#52 0x00247c5b in scheme_thread_w_details ()
Previous frame inner to this frame (gdb could not unwind past this frame)