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diff --git a/stap.1.in b/stap.1.in
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@@ -832,6 +832,17 @@ user processes, and remove the active probe kernel module with
.IR rmmod .
Any pending trace messages may be lost.
+.PP
+In addition to the methods outlined above, the generated kernel module
+also uses overload processing to make sure that no probe can run for
+too long. If more than STP_OVERLOAD_THRESHOLD cycles (default
+500000000) have been spent in a single probe during the last
+STP_OVERLOAD_INTERVAL cycles (default 1000000000), the probe has
+overloaded the system and an exit is triggered.
+.PP
+By default, overload processing is turned on for all modules. If you
+would like to disable overload processing, define STP_OVERLOAD.
+
.SH FILES
.\" consider autoconf-substituting these directories
.TP