Re: [BUG] perf: No samples found when using kcore + coresight

Yang Shi
2023-03-28T00:54:26Z

Hi Leo,

Just follow up on this one. Any update?

Thanks,
Yang

On Mon, Mar 13, 2023 at 5:36 PM Leo Yan <leo.yan@linaro.org> wrote:
>
> On Mon, Mar 13, 2023 at 11:15:44AM -0700, Yang Shi wrote:
>
> [...]
>
> > > Just a quick summary, here we have two issues:
> > >
> > > - With command:
> > > perf record -e cs_etm/@tmc_etf63/k --kcore --per-thread \
> > > -- taskset --cpu-list 1 uname",
> > >
> > > perf doesn't enable "text poke" attribution.
> >
> > No, it enables "text poke" and perf fails to decode coresight trace
> > data too. It doesn't matter whether "--kcore" is after or before "-e
> > cs/etm/@tmc_etf63/k".
>
> Understand now. Thanks for correction, if so we can ignore this one.
>
> Leo