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QuestionQ12

Advanced Kernel Debugging

You need to run a kernel debug for a longer period because the problem occurs only once or twice per week. Therefore, you must add a timestamp to the kernel debug and write its output to a file, but you cannot afford to consume all remaining disk space and have only 10 GB free for saving the debugs. What is the correct syntax for this?

Explanation

fw ctl kdebug -T -f -o collects continuous, timestamped kernel-debug output into files. The -m 10 and -s 1000000 parameters configure 10 cyclic files of 1,000,000 KB each, bounding retained debug output to approximately 10 GB.

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