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From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Riccardo Mancini <rickyman7@gmail.com>
Cc: Ian Rogers <irogers@google.com>,
	Namhyung Kim <namhyung@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	Mark Rutland <mark.rutland@arm.com>, Jiri Olsa <jolsa@redhat.com>,
	linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org
Subject: Re: [PATCH 13/20] perf script: fix memory leaks in perf_script
Date: Thu, 15 Jul 2021 17:25:05 -0300	[thread overview]
Message-ID: <YPCZoa/IwENjYPe5@kernel.org> (raw)
In-Reply-To: <5ee73b19791c6fa9d24c4d57f4ac1a23609400d7.1626343282.git.rickyman7@gmail.com>

Em Thu, Jul 15, 2021 at 06:07:18PM +0200, Riccardo Mancini escreveu:
> ASan reports several memory leaks while running the perf test
> "82: Use vfs_getname probe to get syscall args filenames".
> Two of these are caused by some refcounts not being decreased on
> perf-script exit, namely script.threads and script.cpus.
> 
> This patch adds the missing __put calls in a new perf_script__exit
> function, which is called at the end of cmd_script.
> 
> This patch concludes the fixes of all remaining memory leaks in perf
> test "82: Use vfs_getname probe to get syscall args filenames".

Fixes: cfc8874a48599249 ("perf script: Process cpu/threads maps")

Thanks, applied.

- Arnaldo

 
> Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
> ---
>  tools/perf/builtin-script.c | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
> index bae0e5b72c0e6050..064da7f3618d39d8 100644
> --- a/tools/perf/builtin-script.c
> +++ b/tools/perf/builtin-script.c
> @@ -2601,6 +2601,12 @@ static void perf_script__exit_per_event_dump_stats(struct perf_script *script)
>  	}
>  }
>  
> +static void perf_script__exit(struct perf_script *script)
> +{
> +	perf_thread_map__put(script->threads);
> +	perf_cpu_map__put(script->cpus);
> +}
> +
>  static int __cmd_script(struct perf_script *script)
>  {
>  	int ret;
> @@ -4146,6 +4152,7 @@ int cmd_script(int argc, const char **argv)
>  	zstd_fini(&(session->zstd_data));
>  	evlist__free_stats(session->evlist);
>  	perf_session__delete(session);
> +	perf_script__exit(&script);
>  
>  	if (script_started)
>  		cleanup_scripting();
> -- 
> 2.31.1
> 

-- 

- Arnaldo

  reply	other threads:[~2021-07-15 20:25 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-15 16:07 [PATCH 00/20] perf: fix several memory leaks reported by ASan on perf-test Riccardo Mancini
2021-07-15 16:07 ` [PATCH 01/20] perf nsinfo: fix refcounting Riccardo Mancini
2021-07-15 19:02   ` Arnaldo Carvalho de Melo
2021-07-15 19:07     ` Arnaldo Carvalho de Melo
2021-07-15 19:20     ` Arnaldo Carvalho de Melo
2021-07-15 19:44     ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 02/20] perf env: fix sibling_dies memory leak Riccardo Mancini
2021-07-15 19:49   ` Arnaldo Carvalho de Melo
2021-07-16 13:13     ` Riccardo Mancini
2021-07-15 16:07 ` [PATCH 03/20] perf test: session_topology: delete session->evlist Riccardo Mancini
2021-07-15 19:51   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 04/20] perf test: event_update: fix memory leak of evlist Riccardo Mancini
2021-07-15 19:54   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 05/20] perf test: event_update: fix memory leak of unit Riccardo Mancini
2021-07-15 19:58   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 06/20] perf dso: fix memory leak in dso__new_map Riccardo Mancini
2021-07-15 20:01   ` Arnaldo Carvalho de Melo
2021-07-15 20:07   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 07/20] perf test: maps__merge_in: fix memory leak of maps Riccardo Mancini
2021-07-15 20:10   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 08/20] perf env: fix memory leak of cpu_pmu_caps Riccardo Mancini
2021-07-15 20:12   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 09/20] perf report: free generated help strings for sort option Riccardo Mancini
2021-07-15 20:15   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 10/20] perf inject: close inject.output Riccardo Mancini
2021-07-15 20:17   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 11/20] perf session: cleanup trace_event Riccardo Mancini
2021-07-15 20:21   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 12/20] perf script: release zstd data Riccardo Mancini
2021-07-15 20:23   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 13/20] perf script: fix memory leaks in perf_script Riccardo Mancini
2021-07-15 20:25   ` Arnaldo Carvalho de Melo [this message]
2021-07-15 16:07 ` [PATCH 14/20] perf util/lzma: close lzma stream Riccardo Mancini
2021-07-15 20:31   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 15/20] perf trace: free malloc'd trace fields on exit Riccardo Mancini
2021-07-15 20:32   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 16/20] perf trace: free syscall->arg_fmt Riccardo Mancini
2021-07-15 20:35   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 17/20] perf trace: free syscall tp fields in evsel->priv Riccardo Mancini
2021-07-15 20:35   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 18/20] perf trace: free strings in trace__parse_events_option Riccardo Mancini
2021-07-15 20:36   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 19/20] perf test: bpf: free obj_buf Riccardo Mancini
2021-07-15 20:39   ` Arnaldo Carvalho de Melo
2021-07-16 16:50   ` Arnaldo Carvalho de Melo
2021-07-15 16:07 ` [PATCH 20/20] perf util/probe-file: delete namelist on error in del_events Riccardo Mancini
2021-07-15 20:41   ` Arnaldo Carvalho de Melo

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