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diff --git a/Documentation/sysrq.txt b/Documentation/sysrq.txt
index a1d3ec6292a99..f98c2e31c143e 100644
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+++ b/Documentation/sysrq.txt
@@ -92,6 +92,8 @@ On all - write a character to /proc/sysrq-trigger. eg:
it so that only emergency messages like PANICs or OOPSes would
make it to your console.)
+'f' - Will call oom_kill to kill a memory hog process
+
'e' - Send a SIGTERM to all processes, except for init.
'i' - Send a SIGKILL to all processes, except for init.