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-rw-r--r--runsc/boot/controller.go3
1 files changed, 2 insertions, 1 deletions
diff --git a/runsc/boot/controller.go b/runsc/boot/controller.go
index cb5d8ea31..5e849cb37 100644
--- a/runsc/boot/controller.go
+++ b/runsc/boot/controller.go
@@ -547,7 +547,8 @@ type SignalArgs struct {
// Signo is the signal to send to the process.
Signo int32
- // PID is the process ID in the given container that will be signaled.
+ // PID is the process ID in the given container that will be signaled,
+ // relative to the root PID namespace, not the container's.
// If 0, the root container will be signalled.
PID int32