From: Matt Fleming <[email protected]> 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 <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Peter Zijlstra <[email protected]> Signed-off-by: Matt Fleming <[email protected]> --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
