$ gdb -core core.31720
GNU gdb 6.6-1mdv2007.1 (Mandriva Linux release 2007.1)
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This GDB was configured as "i586-mandriva-linux-gnu".
(no debugging symbols found)
Using host libthread_db library "/lib/i686/libthread_db.so.1".
Core was generated by `rdesktop hermes'.
Program terminated with signal 11, Segmentation fault.
#0 0xb7cd8983 in ?? ()
(gdb) bt
#0 0xb7cd8983 in ?? ()
#1 0x083cf108 in ?? ()
#2 0x00000061 in ?? ()
#3 0x00000000 in ?? ()
(gdb)