diff --git a/src/runtime/mgc.go b/src/runtime/mgc.go
index 69fd8df662..83d9a49a46 100644
--- a/src/runtime/mgc.go
+++ b/src/runtime/mgc.go
@@ -1931,7 +1931,6 @@ func gcMark(start_time int64) {
 	} else {
 		gcDrain(gcw, gcDrainNoBlock)
 	}
-	gcw.dispose()
 
 	if debug.gccheckmark > 0 {
 		// This is expensive when there's a large number of
@@ -2130,7 +2129,6 @@ func gchelper() {
 		} else {
 			gcDrain(gcw, gcDrainNoBlock)
 		}
-		gcw.dispose()
 	}
 
 	nproc := atomic.Load(&work.nproc) // work.nproc can change right after we increment work.ndone
diff --git a/src/runtime/mgcmark.go b/src/runtime/mgcmark.go
index 6c641e3fbf..b86b2d012e 100644
--- a/src/runtime/mgcmark.go
+++ b/src/runtime/mgcmark.go
@@ -1149,11 +1149,6 @@ func shade(b uintptr) {
 	if obj, span, objIndex := findObject(b, 0, 0); obj != 0 {
 		gcw := &getg().m.p.ptr().gcw
 		greyobject(obj, 0, 0, span, gcw, objIndex)
-		if gcphase == _GCmarktermination {
-			// Ps aren't allowed to cache work during mark
-			// termination.
-			gcw.dispose()
-		}
 	}
 }
 
diff --git a/src/runtime/mwbbuf.go b/src/runtime/mwbbuf.go
index 335b10f5b7..f35f7286ac 100644
--- a/src/runtime/mwbbuf.go
+++ b/src/runtime/mwbbuf.go
@@ -275,9 +275,4 @@ func wbBufFlush1(_p_ *p) {
 
 	// Enqueue the greyed objects.
 	gcw.putBatch(ptrs[:pos])
-	if gcphase == _GCmarktermination {
-		// Ps aren't allowed to cache work during mark
-		// termination.
-		gcw.dispose()
-	}
 }