AIX : How to create a core file.

1. Check if the "fullcore" flag is on:

# lsattr -E -l sys0 -a fullcore

# chdev -l sys0 -a fullcore=true

2. Generate a coredump of the hung process:

#gencore

#gencore 1 /export/core

3. collect the core, associated binary and relevant libraries to help debug the core. In the example below, the core file location and associated binary are used as arguments:

# snapcore /export/core

#cd /tmp/snapcore

#ls –al snapcore.*.pax.Z

EOF.