On 3/30/15 1:34 PM, Peter Zijlstra wrote:
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 1abf6919b8a2..27679ab38511 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -766,7 +766,8 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts) if (opts->clockid >= 0) { attr->use_clockid = 1; attr->clockid = opts->clockid; - } + } else + attr->clockid = -1; }No, we must not have a !0 value in ->clockid when we do not set use_clockid. The kernel checks for nonzero tail values.
oops, missed that -- use_clockid is part of the attr so it will be in the file header.
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