Re: Event Tracing in the Linux kernel

[David Kahurani <k.kahurani@xxxxxxxxx>]

Yes, I am using that reference but since no tracepoints are being hit, it leaves me confused.

On Wed, Mar 2, 2022 at 5:53 PM Constantine Shulyupin <constantine.shulyupin@xxxxxxxxx> wrote:

Please check 

https://www.kernel.org/doc/html/latest/trace/events.html 

On Wed, 2 Mar 2022 at 16:38, David Kahurani <k.kahurani@xxxxxxxxx> wrote:

Hello,

I have compiled a pretty recent Linux kernel mostly basing the configuration on the older kernel. 

I am now testing out the event tracing system but seem to be having a problem.

Having enabled all events with 

# echo *:* > /sys/kernel/debug/tracing/set_event

As described here [1], I expect that dmesg shows me some traces but there aren't any. My dmesg logs are empty(just the same as with not having enabled the events).

What could I be missing? Am I checking the wrong place for the trace? Are there no tracepoints getting hit?

Any hits and pointers would be much appreciated.

Regards,

David

 

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Constantine Shulyupin

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