--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mod_traceback/README.markdown	Sun Oct 15 11:10:37 2017 +0200
@@ -0,0 +1,4 @@
+This module writes out a traceback to `traceback.txt` in Prosodys data
+directory (see `prosodyctl about`) when the signal `SIGUSR1` is
+received. This is useful when debugging seemingly frozen instances in
+case it is stuck in Lua code.