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ftrace/selftest: Test combination of function_graph tracer and functi…
…on profiler Masami reported a bug when running function graph tracing then the function profiler. The following commands would cause a kernel crash: # cd /sys/kernel/tracing/ # echo function_graph > current_tracer # echo 1 > function_profile_enabled In that order. Create a test to test this two to make sure this does not come back as a regression. Link: https://lore.kernel.org/172398528350.293426.8347220120333730248.stgit@devnote2 Link: https://lore.kernel.org/all/[email protected]/ Acked-by: Masami Hiramatsu (Google) <[email protected]> Signed-off-by: Steven Rostedt (Google) <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
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