CPU Soft Locking Patch

Posted by jamesf on 2014-08-13 11:47
OS: All / Any | Product: Stackato | tags: soft-locking kernel 3.2.1

How do I fix CPU soft locking issues?


We have issued a patch which addresses CPU soft-locking errors and is labelled cpu-soft-locking in kato patch. It is not revertable. This patch upgrades the Ubuntu kernel from 3.8.0-30 to 3.13.0-32.

This patch requires a full reboot (ie: sudo reboot). You should back up your systems before applying the patch and plan for this downtime accordingly.


We recommend rebooting the core node first, followed by other routers/controllers, then any services nodes, followed by DEAs.

To minimize user application downtime, run 'kato node retire' on each DEA node before rebooting it. Repeat the process one node at a time to ensure app instances are gracefully redistributed to live DEA nodes before each reboot.

If you encounter any issues or have any questions, please contact ActiveState Support: stackato-support@activestate.com