linux-kernel - [PATCH v8 4/6] perf evlist: Missing TPEBS close in evlist_

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20260206222509.982489-5-irogers@google.com>
Date: Fri,  6 Feb 2026 14:25:07 -0800
From: Ian Rogers <irogers@...gle.com>
To: acme@...nel.org
Cc: adrian.hunter@...el.com, ak@...ux.intel.com, 
	alexander.shishkin@...ux.intel.com, andres@...razel.de, 
	dapeng1.mi@...ux.intel.com, irogers@...gle.com, james.clark@...aro.org, 
	jolsa@...nel.org, linux-kernel@...r.kernel.org, 
	linux-perf-users@...r.kernel.org, linux@...blig.org, mingo@...hat.com, 
	namhyung@...nel.org, peterz@...radead.org, thomas.falcon@...el.com, 
	tmricht@...ux.ibm.com, yang.lee@...ux.alibaba.com
Subject: [PATCH v8 4/6] perf evlist: Missing TPEBS close in evlist__close

The libperf evsel close won't close TPEBS events properly. Add a test
to do this. The libperf close routine is used in evlist__close for
affinity reasons.

Signed-off-by: Ian Rogers <irogers@...gle.com>
---
 tools/perf/util/evlist.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 3b0d837e3046..3abc2215e790 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -1356,6 +1356,8 @@ void evlist__close(struct evlist *evlist)
 		return;
 
 	evlist__for_each_cpu(evlist_cpu_itr, evlist, &affinity) {
+		if (evlist_cpu_itr.cpu_map_idx == 0 && evsel__is_retire_lat(evlist_cpu_itr.evsel))
+			evsel__tpebs_close(evlist_cpu_itr.evsel);
 		perf_evsel__close_cpu(&evlist_cpu_itr.evsel->core,
 				      evlist_cpu_itr.cpu_map_idx);
 	}
-- 
2.53.0.rc2.204.g2597b5adb4-goog