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Message-ID: <ZHNU2ULCyO/H6uWA@kernel.org>
Date: Sun, 28 May 2023 10:19:21 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Ian Rogers <irogers@...gle.com>
Cc: Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Adrian Hunter <adrian.hunter@...el.com>,
Kan Liang <kan.liang@...ux.intel.com>,
Sandipan Das <sandipan.das@....com>,
James Clark <james.clark@....com>,
Dmitrii Dolgov <9erthalion6@...il.com>,
Changbin Du <changbin.du@...wei.com>,
Rob Herring <robh@...nel.org>,
Xing Zhengjun <zhengjun.xing@...ux.intel.com>,
linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 0/2] Fixes from evsel__group_pmu_name asan error
Em Fri, May 26, 2023 at 12:44:40PM -0700, Ian Rogers escreveu:
> evsel__group_pmu_name triggered an asan error as a list_head was cast
> to an evsel, when it was the head, and the accessed as if it were a
> full evsel. Further investigation showed problematic list iteration
> for evsel__group_pmu_name whilst the list was being sorted so switch
> to pre-computation.
>
> v3: Rebase on perf-tools-next (branch getting ready for 6.5) rather
> than perf-tools (fixes for 6.4).
> v2: Address review comments/feedback from Adrian Hunter
> <adrian.hunter@...el.com>.
Thanks, applied.
- Arnaldo
> Ian Rogers (2):
> perf evsel: evsel__group_pmu_name fixes
> perf evsel: for_each_group fixes
>
> tools/perf/util/evsel.c | 31 ++++-----------
> tools/perf/util/evsel.h | 26 +++++++-----
> tools/perf/util/evsel_fprintf.c | 1 +
> tools/perf/util/parse-events.c | 70 +++++++++++++++++++++++++++------
> 4 files changed, 84 insertions(+), 44 deletions(-)
>
> --
> 2.41.0.rc0.172.g3f132b7071-goog
>
--
- Arnaldo
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