From eda9e47fae276d2b7a2b6a826b38259e6481d879 Mon Sep 17 00:00:00 2001 From: Ian Rogers Date: Tue, 17 Jun 2025 15:33:55 -0700 Subject: [PATCH] perf trace: Add missed freeing of ordered events and thread Caught by leak sanitizer running "perf trace BTF general tests". Make the ordered_events initialization unconditional and early so that trace__exit cleanup is simple - ordered_events__init doesn't allocate and just sets up 4 values and inits 3 list heads. Signed-off-by: Ian Rogers Link: https://lore.kernel.org/r/20250617223356.2752099-3-irogers@google.com Signed-off-by: Namhyung Kim --- tools/perf/builtin-trace.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 61650be8fccd..c38225a89fc8 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -5361,6 +5361,7 @@ out: static void trace__exit(struct trace *trace) { + thread__zput(trace->current); strlist__delete(trace->ev_qualifier); zfree(&trace->ev_qualifier_ids.entries); if (trace->syscalls.table) { @@ -5371,6 +5372,7 @@ static void trace__exit(struct trace *trace) zfree(&trace->perfconfig_events); evlist__delete(trace->evlist); trace->evlist = NULL; + ordered_events__free(&trace->oe.data); #ifdef HAVE_LIBBPF_SUPPORT btf__free(trace->btf); trace->btf = NULL; @@ -5520,6 +5522,9 @@ int cmd_trace(int argc, const char **argv) sigchld_act.sa_sigaction = sighandler_chld; sigaction(SIGCHLD, &sigchld_act, NULL); + ordered_events__init(&trace.oe.data, ordered_events__deliver_event, &trace); + ordered_events__set_copy_on_queue(&trace.oe.data, true); + trace.evlist = evlist__new(); if (trace.evlist == NULL) { @@ -5678,11 +5683,6 @@ skip_augmentation: trace__load_vmlinux_btf(&trace); } - if (trace.sort_events) { - ordered_events__init(&trace.oe.data, ordered_events__deliver_event, &trace); - ordered_events__set_copy_on_queue(&trace.oe.data, true); - } - /* * If we are augmenting syscalls, then combine what we put in the * __augmented_syscalls__ BPF map with what is in the -- 2.25.1