Does Platform9 Support Enabling Kernel Parameter kernel.hung_task_panic?

Problem

• The default kernel parameter kernel.hung_task_panic is set to 0 to ensure that the node does not panic. If kernel.hung_task_panic is enabled [set to 1], then it causes the kernel to panic immediately when any of the kernel threads wait for more than the kernel.hung_task_timeout_secs value.

• Does Platform9 change the default value for kernel.hung_task_panic?

Environment

• Platform9 Managed Kubernetes - v5.4 and Higher

Answer

Platform9 components are not having any dependency with the kernel parameter kernel.hung_task_panic. So enabling and disabling the kernel.hung_task_panic will depict its expected behavior, and no issues will be seen during the node onboarding process or during the cluster creation phase.