How to get useful information from a core file for Support.

Steps

1. Check which process created the core file using the file command.
   In the following examples, the core file name is core.15270054.01043046
   $ file core.15270054.01043046
core.15270054.01043046 AIX core file fulldump AIX core file fulldump 64-bit, ncp_ctrl
   The output shows that the core file was created by ncp_ctrl.

2. Create a file called /tmp/dbx.cmds.
   It should contain one line:
   where corefile proc thread kthread fd map quit

3. Run this command:
   dbx -c /tmp/dbx.cmds $NCHOME/precision/platform/aix5/bin/ncp_ctrl PATH_TO_CORE > /tmp/dbx.out 2>&1
   Replace PATH_TO_CORE with the full path to the core file.
   
   For example, if the full path is
   /opt/IBM/tivoli/netcool/precision/PD/core/ncp_ctrl/core.15270054.01043046
   
   then your command will look like this:
   dbx -c /tmp/dbx.cmds $NCHOME/precision/platform/aix5/bin/ncp_ctrl /opt/IBM/tivoli/netcool/precision/PD/core/ncp_ctrl/core.15270054.01043046 > /tmp/dbx.out 2>&1
   
   Remember to replace ncp_ctrl for the name of the binary that created the core dump (see step 1).
   Send /tmp/dbx.out to IBM Support.

1. Check which process created the core file using the file command.
   In the following examples, the core file name is core.18397
   $file core.18397
core.18397: ELF 64-bit LSB core file x86-64, version 1 (SYSV), SVR4-style, from 'ncp_virtualdomain -domain AGG_P
   
   The output shows that the core file was created by ncp_virtualdomain.

2. Create a file called /tmp/gdb.cmds.
   It should contain one line:
   where info registers thread apply all where quit

3. Run this command:
   gdb -batch -x /tmp/gdb.cmds $NCHOME/precision/platform/linux2x86/bin/ncp_virtualdomain PATH_TO_CORE > /tmp/gdb.out 2>&1
   Replace PATH_TO_CORE with the full path to the core file.
   
   For example, if the full path is
   /opt/IBM/tivoli/netcool/precision/PD/core/ncp_virtualdomain/core.18397
   
   then your command will look like this:
   gdb -batch -x /tmp/gdb.cmds $NCHOME/precision/platform/linux2x86/bin/ncp_virtualdomain /opt/IBM/tivoli/netcool/precision/PD/core/ncp_virtualdomaon/core.18397 > /tmp/gdb.out 2>&1
   
   Remember to replace ncp_virtualdomain for the name of the binary that created the core dump (see step 1).
   Send /tmp/gdb.out to IBM Support.