diff options
| -rw-r--r-- | tools/perf/util/session.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 7c021c6cedb9..fdfe772f2699 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -1699,8 +1699,13 @@ static s64 perf_session__process_user_event(struct perf_session *session, case PERF_RECORD_AUXTRACE_INFO: return tool->auxtrace_info(session, event); case PERF_RECORD_AUXTRACE: - /* setup for reading amidst mmap */ - lseek(fd, file_offset + event->header.size, SEEK_SET); + /* + * Setup for reading amidst mmap, but only when we + * are in 'file' mode. The 'pipe' fd is in proper + * place already. + */ + if (!perf_data__is_pipe(session->data)) + lseek(fd, file_offset + event->header.size, SEEK_SET); return tool->auxtrace(session, event); case PERF_RECORD_AUXTRACE_ERROR: perf_session__auxtrace_error_inc(session, event); |