diff --git a/src/runtime/extern.go b/src/runtime/extern.go
index 1773c8fe7e..3be1eca09c 100644
--- a/src/runtime/extern.go
+++ b/src/runtime/extern.go
@@ -61,8 +61,7 @@ It is a comma-separated list of name=val pairs setting these named variables:
 
 	gctrace: setting gctrace=1 causes the garbage collector to emit a single line to standard
 	error at each collection, summarizing the amount of memory collected and the
-	length of the pause. Setting gctrace=2 emits the same summary but also
-	repeats each collection. The format of this line is subject to change.
+	length of the pause. The format of this line is subject to change.
 	Currently, it is:
 		gc # @#s #%: #+#+# ms clock, #+#/#/#+# ms cpu, #->#-># MB, # MB goal, # P
 	where the fields are as follows:
diff --git a/src/runtime/mgc.go b/src/runtime/mgc.go
index c95b5ed37f..f975011191 100644
--- a/src/runtime/mgc.go
+++ b/src/runtime/mgc.go
@@ -1558,23 +1558,6 @@ func gcMarkTermination(nextTriggerRatio float64) {
 		// marking is complete so we can turn the write barrier off
 		setGCPhase(_GCoff)
 		gcSweep(work.mode)
-
-		if debug.gctrace > 1 {
-			startTime = nanotime()
-			// The g stacks have been scanned so
-			// they have gcscanvalid==true and gcworkdone==true.
-			// Reset these so that all stacks will be rescanned.
-			gcResetMarkState()
-			finishsweep_m()
-
-			// Still in STW but gcphase is _GCoff, reset to _GCmarktermination
-			// At this point all objects will be found during the gcMark which
-			// does a complete STW mark and object scan.
-			setGCPhase(_GCmarktermination)
-			gcMark(startTime)
-			setGCPhase(_GCoff) // marking is done, turn off wb.
-			gcSweep(work.mode)
-		}
 	})
 
 	_g_.m.traceback = 0