Comment 6 for bug 154464

I believe I have the same issue; attaching gdb and getting a backtrace reveals this:

#0 0x00002ac06cb597a6 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1 0x00002ac06c2d677c in do_add_contact (sync=1, book=0x2aaaac23c4a0, contact=0x15c50f0, error=0x7fff40693ac8, cb=0, closure=0x0) at e-book.c:315
#2 0x00002aaab05c8414 in bbdb_do_it (book=0x2aaaac23c4a0, name=0x2aaaac1dda60 "Nanley Chery", email=0x2aaaac314610 "<email address hidden>") at bbdb.c:253
#3 0x00002aaab05c858a in bbdb_handle_reply (ep=<value optimized out>, target=0xdc5b40) at bbdb.c:125
#4 0x00002ac06b9b5e4a in epl_invoke (ep=0x6f0d20, name=0x7324a0 "bbdb_handle_reply", data=0xdc5b40) at e-plugin.c:893
#5 0x00002ac06b9b178d in e_event_emit (emp=0x704840, id=0x2ac07ca3aae8 "message.replying", target=0xdc5b40) at e-event.c:299
#6 0x00002ac07c9d5d4a in em_utils_reply_to_message (folder=0x2aaaac19f2f0, uid=0x240f980 "2442", message=0x2aaaac003000, mode=1, source=0x893130) at em-composer-utils.c:1969
#7 0x00002ac07c9d6504 in reply_to_message (folder=0x13cb9a4, uid=0x0, message=0x1, user_data=<value optimized out>) at em-composer-utils.c:1910
#8 0x00002ac07ca149f2 in mail_msgport_replied (source=<value optimized out>, cond=<value optimized out>, d=<value optimized out>) at mail-mt.c:473
#9 0x00002ac074115fd3 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#10 0x00002ac0741192dd in ?? () from /usr/lib/libglib-2.0.so.0
#11 0x00002ac0741195ea in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#12 0x00002ac06ed68346 in bonobo_main () from /usr/lib/libbonobo-2.so.0
#13 0x000000000041690b in main (argc=<value optimized out>, argv=0x7fff40694078) at main.c:602
#14 0x00002ac0743cfb44 in __libc_start_main () from /lib/libc.so.6
#15 0x000000000040a989 in _start ()