| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.4 19/83] perf intel-pt: Clear FUP flag on error | Date | Tue, 25 Jul 2017 12:18:43 -0700 |
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4.4-stable review patch. If anyone has any objections, please let me know.
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From: Adrian Hunter <adrian.hunter@intel.com>
commit 6a558f12dbe85437acbdec5e149ea07b5554eced upstream.
Sometimes a FUP packet is associated with a TSX transaction and a flag is set to indicate that. Ensure that flag is cleared on any error condition because at that point the decoder can no longer assume it is correct.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Link: http://lkml.kernel.org/r/1495786658-18063-9-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- tools/perf/util/intel-pt-decoder/intel-pt-decoder.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c +++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c @@ -1924,6 +1924,8 @@ static int intel_pt_sync_ip(struct intel { int err; + decoder->set_fup_tx_flags = false; + intel_pt_log("Scanning for full IP\n"); err = intel_pt_walk_to_ip(decoder); if (err)
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