gdb asterisk core.29019 ...
...
(gdb) bt
#0  0x0619c4b1 in digivoice_load_firmware () from /usr/lib/libdigivoice.so
#1  0x061b1d1c in dg_StartVoicerlib () from /usr/lib/libdigivoice.so
#2  0x018ccfd7 in setup_dgv ()
from /usr/lib/asterisk/modules/chan_dgv.so
#3  0x018ce9d2 in load_module ()
from /usr/lib/asterisk/modules/chan_dgv.so
#4  0x080aca08 in load_resource (resource_name=0x94cfce0 "chan_dgv.so", global_symbols_only=Variable "global_symbols_only" is not available.
) at loader.c:680
#5  0x080acf71 in load_modules (preload_only=0) at loader.c:874
#6  0x0806f3e9 in main (argc=7, argv=0xbff07464) at asterisk.c:2965
#7  0x00502e23 in __libc_start_main () from /lib/tls/libc.so.6
#8  0x08057d51 in ?? ()
(gdb