Commit-ID: 1c196a6c771c47a2faa63d38d913e03284f73a16 Gitweb: https://git.kernel.org/tip/1c196a6c771c47a2faa63d38d913e03284f73a16 Author: Adrian Hunter <adrian.hun...@intel.com> AuthorDate: Wed, 7 Mar 2018 16:02:23 +0200 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Thu, 8 Mar 2018 10:05:55 -0300
perf intel-pt: Fix error recovery from missing TIP packet When a TIP packet is expected but there is a different packet, it is an error. However the unexpected packet might be something important like a TSC packet, so after the error, it is necessary to continue from there, rather than the next packet. That is achieved by setting pkt_step to zero. Signed-off-by: Adrian Hunter <adrian.hun...@intel.com> Cc: Jiri Olsa <jo...@redhat.com> Cc: sta...@vger.kernel.org Link: http://lkml.kernel.org/r/1520431349-30689-4-git-send-email-adrian.hun...@intel.com Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/util/intel-pt-decoder/intel-pt-decoder.c | 1 + 1 file changed, 1 insertion(+) 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 00f25f4b5f48..5e4d0bbafc8b 100644 --- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c +++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c @@ -1616,6 +1616,7 @@ static int intel_pt_walk_fup_tip(struct intel_pt_decoder *decoder) case INTEL_PT_PWRX: intel_pt_log("ERROR: Missing TIP after FUP\n"); decoder->pkt_state = INTEL_PT_STATE_ERR3; + decoder->pkt_step = 0; return -ENOENT; case INTEL_PT_OVF:
