autumn# ./gdb ribd ribd.core
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This GDB was configured as "i386-unknown-netbsd1.4.1"...
Core was generated by `ribd'.
Program terminated with signal 4, Illegal instruction.
Can't fetch registers from this type of core file
Can't fetch registers from this type of core file
Can't fetch registers from this type of core file
#0 0x0 in ?? ()