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From: Riccardo Mancini <rickyman7@gmail.com>
To: Arnaldo Carvalho de Melo <arnaldo.melo@gmail.com>
Cc: Kan Liang <kan.liang@linux.intel.com>,
	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 02/20] perf env: fix sibling_dies memory leak
Date: Fri, 16 Jul 2021 15:13:37 +0200	[thread overview]
Message-ID: <b8ec4f29889914e49fac73af59466e8acdf1e49f.camel@gmail.com> (raw)
In-Reply-To: <YPCRR8jv47kHG/xC@kernel.org>

Hi Arnaldo,

thanks for reviewing this patchset and, more importantly, for manually adding
all Fixes: tags. I'm so sorry for that.

On Thu, 2021-07-15 at 16:49 -0300, Arnaldo Carvalho de Melo wrote:
> Em Thu, Jul 15, 2021 at 06:07:07PM +0200, Riccardo Mancini escreveu:
> > ASan reports a memory leak in perf_env while running the perf test
> > "41: Session topology", caused by sibling_dies not being freed.
> > 
> > This patch adds the required free.
>  
> > Fixes: acae8b36cded0ee6 ("perf header: Add die information in CPU topology")
> 
> So, I CC the author of the patch and its committer, using this shell
> script:
> 
>   $ cat ~/bin/fixes
>   #!/bin/bash
>   
>   cset=$1
>   if [ $# -eq 0 ] ; then
>         read cset
>   fi
>   git show --pretty=fuller $cset | grep '^\(Author\|Commit\): ' | sed -r
> 's/.*: +/Cc: /g' | grep -v "Arnaldo Carvalho de Melo" | sort -u
>   echo Fixes: `git one $cset`
>   $
>   $ grep one -B1 ~/.gitconfig
>   [alias]
>         one = show -s --pretty='format:%h (\"%s\")'
>   $
>   $ fixes acae8b36cded0ee6
>   Cc: Kan Liang <kan.liang@linux.intel.com>
>   Fixes: acae8b36cded0ee6 ("perf header: Add die information in CPU topology")
>   $
> 
> Normally I copy the cset SHA and, in vim, select it and run !fixes, i.e.
> 
> :'<,'>!fixes

Thanks! I've added this nice script to my PATH. :)

Thanks,
Riccardo

> 
> Thanks, applied.
> 
> - Arnaldo
> 
> > Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
> > ---
> >  tools/perf/util/env.c | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/tools/perf/util/env.c b/tools/perf/util/env.c
> > index ebc5e9ad35db21d1..6c765946ef6f591c 100644
> > --- a/tools/perf/util/env.c
> > +++ b/tools/perf/util/env.c
> > @@ -186,6 +186,7 @@ void perf_env__exit(struct perf_env *env)
> >         zfree(&env->cpuid);
> >         zfree(&env->cmdline);
> >         zfree(&env->cmdline_argv);
> > +       zfree(&env->sibling_dies);
> >         zfree(&env->sibling_cores);
> >         zfree(&env->sibling_threads);
> >         zfree(&env->pmu_mappings);
> > -- 
> > 2.31.1
> > 
> 



  reply	other threads:[~2021-07-16 13:13 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 [this message]
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
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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