From: Kan Liang <kan.li...@intel.com> It also uses hists/hist_entries, hists__init() should be called before creating any evsels.
Otherwise no extra space will be allocated per perf_evsel nor this space will be initialized when allocating a new perf_evsel instance, resulting in reads/writes to non allocated space, oops. Fix it. Signed-off-by: Kan Liang <kan.li...@intel.com> Link: http://lkml.kernel.org/r/1414004561-22096-1-git-send-email-kan.li...@intel.com Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/builtin-diff.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c index 8c5c11ca8c53..25114c9a6801 100644 --- a/tools/perf/builtin-diff.c +++ b/tools/perf/builtin-diff.c @@ -1142,6 +1142,11 @@ static int data_init(int argc, const char **argv) int cmd_diff(int argc, const char **argv, const char *prefix __maybe_unused) { + int ret = hists__init(); + + if (ret < 0) + return ret; + perf_config(perf_default_config, NULL); argc = parse_options(argc, argv, options, diff_usage, 0); -- 1.9.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/