The OS X crash is probably a good thing to look at, if it occurs early in the dig. (a) Could you please post (or mail me) the complete backtrace? (b) Does it still occur without compression? (c) Are you using zlib-1.1.4? (I have had core dumps with earlier versions, but not since upgrading.)
The backtrace is attached. The problem does not occur if I turn off compression; by turning off compression, I mean that I changed your provided config file so that wordlist_compress and wordlist_compress_zlib are false and compression_level is commented out. OS X is still using 1.1.3; according to Apple, the vulnerability that drove the move to 1.1.4 did not affect their system. When I get a chance, I will try rebuilding everything against the 1.1.4 zlib available via fink and see if that makes any difference.
Jim
osx_bt.gz
Description: GNU Zip compressed data
