How do I confirm that the 'kernel.hung_task_panic' parameter works?
Issue
- After enabling "kernel.hung_task_panic", how do I confirm that it will work?
- System didn't generate vmcore after encountering hung_task_timeout_secs messages, even when the hung_task_panic was set.
- How do I simulate hung task to test it?
Environment
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Kernel
- Kexec-tools
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