X-Git-Url: http://www.git.cypherpunks.ru/?a=blobdiff_plain;f=src%2Fruntime%2Fmgc.go;h=b791acd163d67dfb11b9fd783bef96f12840f12b;hb=43ffe2a89230553efc9fc915e944b91438d9f1fd;hp=d015d6dbabaa8035f28b5debad991c9da3840195;hpb=f7c5cbb82087c55aa82081e931e0142783700ce8;p=gostls13.git

diff --git a/src/runtime/mgc.go b/src/runtime/mgc.go
index d015d6dbab..b791acd163 100644
--- a/src/runtime/mgc.go
+++ b/src/runtime/mgc.go
@@ -939,6 +939,9 @@ func gcMarkTermination() {
 	mp.preemptoff = "gcing"
 	mp.traceback = 2
 	curgp := mp.curg
+	// N.B. The execution tracer is not aware of this status
+	// transition and handles it specially based on the
+	// wait reason.
 	casGToWaiting(curgp, _Grunning, waitReasonGarbageCollection)
 
 	// Run gc on the g0 stack. We do this so that the g stack
@@ -1359,6 +1362,10 @@ func gcBgMarkWorker() {
 			// the G stack. However, stack shrinking is
 			// disabled for mark workers, so it is safe to
 			// read from the G stack.
+			//
+			// N.B. The execution tracer is not aware of this status
+			// transition and handles it specially based on the
+			// wait reason.
 			casGToWaiting(gp, _Grunning, waitReasonGCWorkerActive)
 			switch pp.gcMarkWorkerMode {
 			default: