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-rw-r--r--tools/perf/util/session.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 2d882fd1f1b9..aa482c10469d 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1368,7 +1368,9 @@ static void perf_session__warn_about_errors(const struct perf_session *session)
"not processed, if there are samples for addresses they\n"
"will not be resolved, you may find out which are these\n"
"threads by running with -v and redirecting the output\n"
- "to a file.\n",
+ "to a file.\n"
+ "The time limit to process proc map is too short?\n"
+ "Increase it by --proc-map-timeout\n",
stats->nr_proc_map_timeout);
}
}