From: Arnaldo Carvalho de Melo <acme@redhat.com>
To: Stephane Eranian <eranian@google.com>
Cc: linux-kernel@vger.kernel.org, peterz@infradead.org,
mingo@elte.hu, ak@linux.intel.com, kan.liang@intel.com,
jolsa@kernel.org
Subject: Re: [PATCH] perf pmu: fix alias->snapshot missing initialization bug
Date: Wed, 6 Jan 2016 18:53:27 -0200 [thread overview]
Message-ID: <20160106205327.GD2503@redhat.com> (raw)
In-Reply-To: <1452106201-13073-1-git-send-email-eranian@google.com>
Em Wed, Jan 06, 2016 at 07:50:01PM +0100, Stephane Eranian escreveu:
> This patch fixes a bug in __perf_pmu__new_alias() whereby
> the alias->snapshot field was not initialized to false. This
> led to random alias->snapshot value for an alias and
> was breaking some measurements such as:
>
> $ perf stat -a -e uncore_imc/data_reads/ -I 1000 sleep 100
>
> Because the event ended up being treated as snapshot mode, when
> it is not.
Thanks, applied.
- Arnaldo
next prev parent reply other threads:[~2016-01-06 20:53 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-06 18:50 Stephane Eranian
2016-01-06 20:53 ` Arnaldo Carvalho de Melo [this message]
2016-01-09 16:32 ` [tip:perf/core] perf pmu: fix alias-> snapshot " tip-bot for Stephane Eranian
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