Debugging core dumps

http://bytesex.org/gdb.html Enable core dumps:

ulimit -c unlimited

The next time some application (e.g. mutt) crashes with a segfault you’ll see that the message “Segmentation fault” changed to “Segmentation fault (core dumped)” and you’ll find a file named “core”. the run gdb with the example executable mutt like:

gdb mutt core