How do I analyze and debug core files on AIX

Sometimes, applications stop working and crash for any reason. A core file appears in scene.

First, we’re going  to set a PATH for all cores files on the system  using syscorepath command.

In order to do this, We’re going to:

1- Create and mount a new filesystem /corefiles

1.1- Create the new filesytem:

1.2- Mount the filesystem:

2- Using syscorepath command, we’ll set a PATH where all these cores files will be dumped..

2.1- Set the directory for all cores files:

2.2- To check if the core’s PATH was correctly set, running:

3- Analize the core file using dbx command.

Once you get all cores in /corefiles, we’re going to analyse them using dbx command. Follow these steps:

3.1- Get the cause of the core file by running check_core command. In the example ksh93 is the victim:

3.2- Debugging with dbx (Provides an environment to debug and run programs) command:

3.3- Once your are in dbx shell, type ‘where’

Or you can use others dbx’s commands. Please see man dbx.

Just thanks if the post was helpful