Em Fri, Mar 01, 2019 at 12:35:36PM +0200, Adrian Hunter escreveu: > When tsc is not available, "timeless" decoding is used but a divide by > zero occurs if perf_time_to_tsc() is called. Ensure the divisor is not > zero.
Thanks, applied. - Arnaldo > Signed-off-by: Adrian Hunter <[email protected]> > Cc: [email protected] # v4.9+ > --- > tools/perf/util/intel-pt.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c > index 3b497bab4324..6d288237887b 100644 > --- a/tools/perf/util/intel-pt.c > +++ b/tools/perf/util/intel-pt.c > @@ -2531,6 +2531,8 @@ int intel_pt_process_auxtrace_info(union perf_event > *event, > } > > pt->timeless_decoding = intel_pt_timeless_decoding(pt); > + if (pt->timeless_decoding && !pt->tc.time_mult) > + pt->tc.time_mult = 1; > pt->have_tsc = intel_pt_have_tsc(pt); > pt->sampling_mode = false; > pt->est_tsc = !pt->timeless_decoding; > -- > 2.17.1 -- - Arnaldo
