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-rw-r--r--runsc/boot/controller.go28
-rw-r--r--runsc/boot/loader.go4
2 files changed, 17 insertions, 15 deletions
diff --git a/runsc/boot/controller.go b/runsc/boot/controller.go
index 865126ac5..9008e1282 100644
--- a/runsc/boot/controller.go
+++ b/runsc/boot/controller.go
@@ -104,13 +104,11 @@ const (
// Profiling related commands (see pprof.go for more details).
const (
- StartCPUProfile = "Profile.StartCPUProfile"
- StopCPUProfile = "Profile.StopCPUProfile"
- HeapProfile = "Profile.HeapProfile"
- BlockProfile = "Profile.BlockProfile"
- MutexProfile = "Profile.MutexProfile"
- StartTrace = "Profile.StartTrace"
- StopTrace = "Profile.StopTrace"
+ CPUProfile = "Profile.CPU"
+ HeapProfile = "Profile.Heap"
+ BlockProfile = "Profile.Block"
+ MutexProfile = "Profile.Mutex"
+ Trace = "Profile.Trace"
)
// Logging related commands (see logging.go for more details).
@@ -132,8 +130,13 @@ type controller struct {
// manager holds the containerManager methods.
manager *containerManager
- // pprop holds the profile instance if enabled. It may be nil.
+ // pprof holds the profile instance if enabled. It may be nil.
pprof *control.Profile
+
+ // stopProfiling has the callback to stop profiling calls. As
+ // this may be executed only once at most, it will be set to nil
+ // after it is executed for the first time.
+ stopProfiling func()
}
// newController creates a new controller. The caller must call
@@ -164,7 +167,7 @@ func newController(fd int, l *Loader) (*controller, error) {
ctrl.srv.Register(&control.Logging{})
if l.root.conf.ProfileEnable {
- ctrl.pprof = &control.Profile{Kernel: l.k}
+ ctrl.pprof, ctrl.stopProfiling = control.NewProfile(l.k)
ctrl.srv.Register(ctrl.pprof)
}
@@ -172,10 +175,9 @@ func newController(fd int, l *Loader) (*controller, error) {
}
func (c *controller) stop() {
- if c.pprof != nil {
- // These are noop if there is nothing being profiled.
- _ = c.pprof.StopCPUProfile(nil, nil)
- _ = c.pprof.StopTrace(nil, nil)
+ if c.stopProfiling != nil {
+ c.stopProfiling()
+ c.stopProfiling = nil
}
}
diff --git a/runsc/boot/loader.go b/runsc/boot/loader.go
index 98ea8db64..f41d6c665 100644
--- a/runsc/boot/loader.go
+++ b/runsc/boot/loader.go
@@ -598,7 +598,6 @@ func (l *Loader) run() error {
if err != nil {
return err
}
-
}
ep.tg = l.k.GlobalInit()
@@ -1045,9 +1044,10 @@ func (l *Loader) WaitExit() kernel.ExitStatus {
// Wait for container.
l.k.WaitExited()
- // Cleanup
+ // Stop the control server.
l.ctrl.stop()
+ // Check all references.
refs.OnExit()
return l.k.GlobalInit().ExitStatus()