From: Matt Fleming <matt@console-pimps.org>
To: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@kernel.org>, Jiri Olsa <jolsa@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Andi Kleen <andi@firstfloor.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
linux-kernel@vger.kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
Matt Fleming <matt.fleming@intel.com>,
Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH 01/11] perf stat: Fix AGGR_CORE segfault on multi-socket system
Date: Wed, 1 Oct 2014 15:36:22 +0100 [thread overview]
Message-ID: <1412174192-7010-2-git-send-email-matt@console-pimps.org> (raw)
In-Reply-To: <1412174192-7010-1-git-send-email-matt@console-pimps.org>
From: Matt Fleming <matt.fleming@intel.com>
When printing the stats associated with a counter in AGGR_MODE mode, the
'cpu' argument represents an encoded socket and core_id, not a 'cpu'.
Using it as an index into the any of the *_stats[MAX_NR_CPUS] arrays
generates a SIGSEGV if the encoded socket id is non-zero.
Follow the AGGR_GLOBAL case and reset the cpu index to 0.
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
tools/perf/builtin-stat.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index b22c62f80078..53bd6b729498 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -965,7 +965,7 @@ static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg)
aggr_printout(evsel, id, nr);
- if (aggr_mode == AGGR_GLOBAL)
+ if (aggr_mode == AGGR_GLOBAL || aggr_mode == AGGR_CORE)
cpu = 0;
fprintf(output, fmt, avg, csv_sep);
--
1.9.3
next prev parent reply other threads:[~2014-10-01 14:36 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-01 14:36 [PATCH v2 00/11] perf: Intel Cache QoS Monitoring support Matt Fleming
2014-10-01 14:36 ` Matt Fleming [this message]
2014-10-01 17:08 ` [PATCH 01/11] perf stat: Fix AGGR_CORE segfault on multi-socket system Arnaldo Carvalho de Melo
2014-10-01 20:37 ` Matt Fleming
2014-10-01 14:36 ` [PATCH v2 02/11] perf tools: Refactor unit and scale function parameters Matt Fleming
2014-10-01 17:09 ` Arnaldo Carvalho de Melo
2014-10-01 14:36 ` [PATCH 03/11] perf tools: Parse event per-package info files Matt Fleming
2014-10-01 14:36 ` [PATCH 04/11] perf: Make perf_cgroup_from_task() global Matt Fleming
2014-10-01 14:36 ` [PATCH 05/11] perf: Add ->count() function to read per-package counters Matt Fleming
2014-10-01 14:36 ` [PATCH 06/11] perf: Move cgroup init before PMU ->event_init() Matt Fleming
2014-10-01 14:36 ` [PATCH 07/11] x86: Add support for Intel Cache QoS Monitoring (CQM) detection Matt Fleming
2014-10-01 14:36 ` [PATCH v2 08/11] perf/x86/intel: Add Intel Cache QoS Monitoring support Matt Fleming
2014-10-01 14:36 ` [PATCH 09/11] perf/x86/intel: Implement LRU monitoring ID allocation for CQM Matt Fleming
2014-10-01 14:36 ` [PATCH v2 10/11] perf/x86/intel: Support task events with Intel CQM Matt Fleming
2014-10-01 14:36 ` [PATCH 11/11] perf/x86/intel: Perform rotation on Intel CQM RMIDs Matt Fleming
2014-10-01 21:42 ` [PATCH v2 00/11] perf: Intel Cache QoS Monitoring support Andi Kleen
2014-10-02 6:51 ` Matt Fleming
2014-10-02 8:41 ` Peter Zijlstra
2014-10-02 15:04 ` Andi Kleen
2014-10-02 17:49 ` Matt Fleming
-- strict thread matches above, loose matches on Subject: below --
2014-09-24 14:04 [PATCH " Matt Fleming
2014-09-24 14:04 ` [PATCH 01/11] perf stat: Fix AGGR_CORE segfault on multi-socket system Matt Fleming
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