Messages in this thread Patch in this message | | | From | Adrian Hunter <> | Subject | [PATCH 1/4] perf intel-pt: Fix sync_switch INTEL_PT_SS_NOT_TRACING | Date | Thu, 31 May 2018 13:23:42 +0300 |
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sync_switch is a facility to synchronize decoding more closely with the point in the kernel when the context actually switched.
In one case, INTEL_PT_SS_NOT_TRACING state was not correctly transitioning to INTEL_PT_SS_TRACING state due to a missing case clause. Add it.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: stable@vger.kernel.org --- tools/perf/util/intel-pt.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c index 492986a25ef6..3db7f0ee52a8 100644 --- a/tools/perf/util/intel-pt.c +++ b/tools/perf/util/intel-pt.c @@ -1521,6 +1521,7 @@ static int intel_pt_sample(struct intel_pt_queue *ptq) if (intel_pt_is_switch_ip(ptq, state->to_ip)) { switch (ptq->switch_state) { + case INTEL_PT_SS_NOT_TRACING: case INTEL_PT_SS_UNKNOWN: case INTEL_PT_SS_EXPECTING_SWITCH_IP: err = intel_pt_next_tid(pt, ptq); -- 1.9.1
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