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From: Song Liu <songliubraving@fb.com>
To: <linux-kernel@vger.kernel.org>
Cc: <kernel-team@fb.com>, <davidca@fb.com>,
	Song Liu <songliubraving@fb.com>,
	Milian Wolff <milian.wolff@kdab.com>,
	Jiri Olsa <jolsa@kernel.org>,
	Arnaldo Carvalho de Melo <acme@redhat.com>,
	Adrian Hunter <adrian.hunter@intel.com>
Subject: [PATCH] perf script/intel-pt: set synth_opts.callchain for use_browser > 0
Date: Mon, 10 Jun 2019 16:42:16 -0700	[thread overview]
Message-ID: <20190610234216.2849236-1-songliubraving@fb.com> (raw)

Currently, intel_pt_process_auxtrace_info() sets synth_opts.callchain for
use_browser != -1, which is not accurate after we set use_browser to 0 in
cmd_script(). As a result, the following commands sees a lot more errors
like:

  perf record -e intel_pt//u -C 10 -- sleep 3
  perf script

  ...
  instruction trace error type 1 time ...
  ...

This patch fixes this by checking use_browser > 0 instead.

Fixes: c1c9b9695cc8 ("perf script: Allow extended console debug output")
Reported-by: David Carrillo Cisneros <davidca@fb.com>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
---
 tools/perf/util/intel-pt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c
index 6d288237887b..15692c104ca8 100644
--- a/tools/perf/util/intel-pt.c
+++ b/tools/perf/util/intel-pt.c
@@ -2588,7 +2588,7 @@ int intel_pt_process_auxtrace_info(union perf_event *event,
 	} else {
 		itrace_synth_opts__set_default(&pt->synth_opts,
 				session->itrace_synth_opts->default_no_sample);
-		if (use_browser != -1) {
+		if (use_browser > 0) {
 			pt->synth_opts.branches = false;
 			pt->synth_opts.callchain = true;
 		}
-- 
2.17.1


             reply	other threads:[~2019-06-10 23:42 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-10 23:42 Song Liu [this message]
2019-06-11  6:45 ` [PATCH] perf script/intel-pt: set synth_opts.callchain for use_browser > 0 Adrian Hunter
2019-06-11  7:18   ` Song Liu
2019-06-11 15:47     ` Arnaldo Carvalho de Melo

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