linux-kernel - Re: [PATCH 0/4] perf lock contention: Small random fixes

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Message-ID: <Y1wyIsOqDt4iU134@kernel.org>
Date:   Fri, 28 Oct 2022 16:48:50 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Namhyung Kim <namhyung@...nel.org>
Cc:     Jiri Olsa <jolsa@...nel.org>, Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Ian Rogers <irogers@...gle.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        linux-perf-users@...r.kernel.org
Subject: Re: [PATCH 0/4] perf lock contention: Small random fixes

Em Fri, Oct 28, 2022 at 11:01:24AM -0700, Namhyung Kim escreveu:
> Hello,
> 
> This is a small update for the perf lock contention command.
> 
> The first issue is from msan (memory sanitizer) related to uninitialized
> memory access and use of variable length array.
> 
> The other is to increase the default stack skip count to find appropriate
> callers in most cases.
> 
> You can get it from 'perf/lock-con-fix-v1' branch in
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/namhyung/linux-perf.git

Thanks, applied.

- Arnaldo

 
> Thanks,
> Namhyung
> 
> 
> Namhyung Kim (4):
>   perf lock contention: Fix memory sanitizer issue
>   perf lock contention: Check --max-stack option
>   perf lock contention: Avoid variable length arrays
>   perf lock contention: Increase default stack skip to 4
> 
>  tools/perf/builtin-lock.c             | 30 +++++++++++++++++--
>  tools/perf/util/bpf_lock_contention.c | 43 ++++++++++++++++++---------
>  tools/perf/util/lock-contention.h     |  2 +-
>  3 files changed, 57 insertions(+), 18 deletions(-)
> 
> 
> base-commit: a3a365655a28f12f07eddf4f3fd596987b175e1d
> -- 
> 2.38.1.273.g43a17bfeac-goog

-- 

- Arnaldo