diff options
| author |   Adrian Hunter <adrian.hunter@intel.com> | 2021-12-10 18:22:58 +0200 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-12-11 08:19:47 -0300 |
| commit | ad106a26aef3a95ac7ca88d033b431661ba346ce (patch) | |
| tree | 21256a8f759eb8b3d0ac78b329f427f094cda44a /tools/perf | |
| parent | perf intel-pt: Fix some PGE (packet generation enable/control flow packets) usage (diff) | |
| download | linux-dev-ad106a26aef3a95ac7ca88d033b431661ba346ce.tar.xz linux-dev-ad106a26aef3a95ac7ca88d033b431661ba346ce.zip | |
perf intel-pt: Fix sync state when a PSB (synchronization) packet is found
When syncing, it may be that branch packet generation is not enabled at
that point, in which case there will not immediately be a control-flow
packet, so some packets before a control flow packet turns up, get
ignored. However, the decoder is in sync as soon as a PSB is found, so
the state should be set accordingly.
Fixes: f4aa081949e7b6 ("perf tools: Add Intel PT decoder")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/util/intel-pt-decoder/intel-pt-decoder.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c index 6f6f163161a9..bddf98123dc3 100644 --- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c +++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c @@ -3608,7 +3608,7 @@ static int intel_pt_sync(struct intel_pt_decoder *decoder) } decoder->have_last_ip = true; - decoder->pkt_state = INTEL_PT_STATE_NO_IP; + decoder->pkt_state = INTEL_PT_STATE_IN_SYNC; err = intel_pt_walk_psb(decoder); if (err) |