Troubleshooting
Problem
IBM Security Guardium STAP agents load a kernel module called KTAP. The guard_tap.ini parameter KTAP_INSTALLED controls whether KTAP loads.
A bug in version 10.6 STAPs allows KTAP to load after upgrade even if KTAP_INSTALLED=0 is set.
Symptom
- Install STAP with default parameters, including KTAP_INSTALLED=1.
- Run lsmod |grep tap or an equivalent command. Notice the KTAP module is loaded.
- Configure guard_tap.ini with KTAP_INSTALLED=0.
- Check KTAP. The module is still loaded.
- Reboot the server.
- Check KTAP again. The module is not loaded after reboot. This behavior is expected.
- Upgrade STAP. (Note KTAP_INSTALLED=0 is still set.)
- Check KTAP. The module is loaded. This behavior is a bug.
Document Location
Worldwide
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Document Information
Modified date:
25 February 2020
UID
ibm13458355