[zoo@localhost research]$ gdb
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This GDB was configured as "i386-redhat-linux".
(gdb) file research
Reading symbols from research...done.
(gdb) core-file core
Core was generated by `research test-3.ppm'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /usr/X11R6/lib/libX11.so.6...done.
Reading symbols from /usr/X11R6/lib/libXext.so.6...done.
Reading symbols from /usr/X11R6/lib/libXmu.so.6...done.
Reading symbols from /usr/X11R6/lib/libXt.so.6...done.
Reading symbols from /usr/X11R6/lib/libXi.so.6...done.
Reading symbols from /usr/X11R6/lib/libSM.so.6...done.
Reading symbols from /usr/X11R6/lib/libICE.so.6...done.
Reading symbols from /usr/lib/libstdc++-libc6.1-1.so.2...done.
Reading symbols from /lib/libm.so.6...done.
Reading symbols from /lib/libc.so.6...done.
Reading symbols from /lib/ld-linux.so.2...done.
#0  0x40207e96 in chunk_free (ar_ptr=0x4029c040, p=0x81d9470) at
malloc.c:3033
3033	malloc.c: No such file or directory.
(gdb)