document that you can generate a core dump with gdb

[ghost]

You can generate a coredump like:

# get your pid
pgrep -lf node

# attach
gdb -p your_pid

Then in gdb:

# gdb: generate core dump
gcore

# gdb: detach
detach

Now you have a core dump without having to crash your process.

[davidmarkclements]

that's awesome - could you turn that into a PR and I'll accept?

[yoshuawuyts]

This is so good!