From 6cef7dab3e2e5cb23a13569c3880c0532326748c Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Wed, 12 Oct 2022 11:22:59 +0300 Subject: perf intel-pt: Fix system_wide dummy event for hybrid 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 Acked-by: Namhyung Kim Cc: Adrian Hunter Cc: Ian Rogers Cc: Jiri Olsa 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 --- tools/perf/arch/x86/util/intel-pt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'tools') diff --git a/tools/perf/arch/x86/util/intel-pt.c b/tools/perf/arch/x86/util/intel-pt.c index 793b35f2221a..af102f471e9f 100644 --- a/tools/perf/arch/x86/util/intel-pt.c +++ b/tools/perf/arch/x86/util/intel-pt.c @@ -866,7 +866,7 @@ 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); -- cgit v1.2.3