Date:   Tue, 14 Mar 2023 08:36:10 +0800
From:   Leo Yan <leo.yan@linaro.org>
To:     Yang Shi <shy828301@gmail.com>
Cc:     James Clark <james.clark@arm.com>,
        linux-perf-users@vger.kernel.org,
        LAK <linux-arm-kernel@lists.infradead.org>,
        coresight@lists.linaro.org,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        mathieu.poirier@linaro.org, adrian.hunter@intel.com,
        Jiri Olsa <jolsa@kernel.org>, acme@redhat.com,
        mike.leach@linaro.org, Will Deacon <will@kernel.org>,
        suzuki.poulose@arm.com
Subject: Re: [BUG] perf: No samples found when using kcore + coresight
Message-ID: <20230314003610.GD2426758@leoy-yangtze.lan>
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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