Add section on ulimit

Author: bahildebrand

_posts/2025-02-13-linux-coredumps-part-1.md

@@ -77,6 +77,17 @@ default mappings that are present in the coredump. `man core`[^man_core]
 provides a good overview of the options available to you when configuring
 coredumps.
 
+In addition the kernel configuration, you'll need to set the `ulimit` for the
+process that you want to capture a coredump for. The `ulimit` command is used to
+set the resource limits for a process. The `core` resource limit is the one
+we're interested in. This sets the maximum size of a coredump that can be
+generated by a process. To make things easy, you can set it to unlimited with
+the following command:
+
+```bash
+ulimit -c unlimited
+```
+
 ### `core_pattern`
 
 The kernel provides an interface for controlling where and how coredumps are