On 2/26/14, 8:17 PM, Junjie Qian wrote:
Hi all,
This is a follow up question about "perf lock".
I recompile the kernel, with both CONFIG_LOCKDEP and CONFIG_LOCK_STAT are "y". But when I
run the command "perf lock record -- sleep 10", the error information still shows as:
tracepoint lock:lock_acquire is not enabled. Are CONFIG_LOCKDEP and
CONFIG_LOCK_STAT enabled?
Could you give me some suggestions on this?
are you running as root? If you are running perf as a normal user is the
events directory accessible -- /sys/kernel/debug/tracing? Does
/sys/kernel/debug/tracing/events/lock exist?
David
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