Q.) How do I configure kdump on RHEL systems?
Bonus Q.) Explain this :
INFO: task <process>:<pid> blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
How to enable collection of a vmcore, via a panic, when a block task event is encountered?
Q.) How will you troubleshoot this issue : kdump service restart failed with below error :
Your running kernel is using more than 70% of the amount of space you reserved for kdump, you should consider increasing your crashkernel reservation
Q.) How will you check / analyze virtual memory info from the core dump ?
Level L3 and above
I'll be posting a series of Linux-related questions covering various skill levels. Feel free to share your insights and expertise. Your contributions will benefit learners at all stages, from those in current roles to those preparing for Linux interviews.
