From 7e13f7a765cc4c3188087276f430f2fd1da1ad6d Mon Sep 17 00:00:00 2001 From: dsmith Date: Thu, 29 Mar 2007 21:25:15 +0000 Subject: 2007-03-29 David Smith PR 3545 * stap.1.in: Documented probe overload processing. --- stap.1.in | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'stap.1.in') diff --git a/stap.1.in b/stap.1.in index 787f8692..e412db75 100644 --- a/stap.1.in +++ b/stap.1.in @@ -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 -- cgit