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-rw-r--r--stapprobes.3stap.in5
1 files changed, 4 insertions, 1 deletions
diff --git a/stapprobes.3stap.in b/stapprobes.3stap.in
index 795a9a92..2cb206c5 100644
--- a/stapprobes.3stap.in
+++ b/stapprobes.3stap.in
@@ -536,7 +536,10 @@ to the working directory if they contain a "/" character, otherwise in
If a process probe is specified without a PID or PATH, all user
threads are probed. PATH may sometimes name a shared library
in which case all processes that map that shared library may be
-probed.
+probed. However, if systemtap was invoked with the
+.IR -c " or " -x
+options, then process probes are restricted to the process
+hierarchy associated with the target process.
.SS PROCFS