diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2022-10-12 11:22:59 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-10-24 09:58:29 +0200 |
| commit | bd3183508842acd156d17485bb13649585c05164 (patch) | |
| tree | 86dc8bbb7ba8133904a2a30f6d2ed1997f03f197 | |
| parent | 41e4f3b6254694628e21bc62da47e83578870200 (diff) | |
perf intel-pt: Fix system_wide dummy event for hybrid
commit 6cef7dab3e2e5cb23a13569c3880c0532326748c upstream.
User space tasks can migrate between CPUs, so when tracing selected CPUs,
system-wide sideband is still needed, however evlist->core.has_user_cpus
is not set in the hybrid case, so check the target cpu_list instead.
Fixes: 7d189cadbeebc778 ("perf intel-pt: Track sideband system-wide when needed")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20221012082259.22394-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | tools/perf/arch/x86/util/intel-pt.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/arch/x86/util/intel-pt.c b/tools/perf/arch/x86/util/intel-pt.c index 06c2cdfd8f2f..892339da90cf 100644 --- a/tools/perf/arch/x86/util/intel-pt.c +++ b/tools/perf/arch/x86/util/intel-pt.c @@ -871,7 +871,7 @@ static int intel_pt_recording_options(struct auxtrace_record *itr, * User space tasks can migrate between CPUs, so when tracing * selected CPUs, sideband for all CPUs is still needed. */ - need_system_wide_tracking = evlist->core.has_user_cpus && + need_system_wide_tracking = opts->target.cpu_list && !intel_pt_evsel->core.attr.exclude_user; tracking_evsel = evlist__add_aux_dummy(evlist, need_system_wide_tracking); |