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charset="UTF-8" struct perf_record_callchain_deferred contains header, cookie, and nr (24 bytes), but perf_event__min_size[PERF_RECORD_CALLCHAIN_DEFERRED] only checked for header + one u64 (16 bytes). Use sizeof(struct perf_record_callchain_deferred). Fixes: c69993ecdd4d ("perf: Support deferred user unwind") Signed-off-by: Ian Rogers --- tools/perf/util/session.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 56a5e57ec512..d9d06337933f 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -2773,7 +2773,7 @@ static const u32 perf_event__min_size[PERF_RECORD_HEADER_MAX] = { [PERF_RECORD_HEADER_FEATURE] = sizeof(struct perf_record_header_feature), [PERF_RECORD_COMPRESSED2] = sizeof(struct perf_record_compressed2), [PERF_RECORD_BPF_METADATA] = sizeof(struct perf_record_bpf_metadata), - [PERF_RECORD_CALLCHAIN_DEFERRED] = sizeof(struct perf_event_header) + sizeof(__u64), + [PERF_RECORD_CALLCHAIN_DEFERRED] = sizeof(struct perf_record_callchain_deferred), /* * SCHEDSTAT events have a version-dependent union after the * fixed header fields; the minimum is the base (pre-union) -- 2.56.0.307.g5fe7bd680c-goog