1 files changed, 0 insertions, 61 deletions
diff --git a/libgo/misc/cgo/test/test27660.go b/libgo/misc/cgo/test/test27660.go
deleted file mode 100644
index 0345aa7312b..00000000000
--- a/libgo/misc/cgo/test/test27660.go
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Stress the interaction between the race detector and cgo in an
-// attempt to reproduce the memory corruption described in #27660.
-// The bug was very timing sensitive; at the time of writing this
-// test would only trigger the bug about once out of every five runs.
-
-package cgotest
-
-// #include <unistd.h>
-import "C"
-
-import (
-	"context"
-	"math/rand"
-	"runtime"
-	"sync"
-	"testing"
-	"time"
-)
-
-func test27660(t *testing.T) {
-	ctx, cancel := context.WithCancel(context.Background())
-	defer cancel()
-	ints := make([]int, 100)
-	locks := make([]sync.Mutex, 100)
-	// Slowly create threads so that ThreadSanitizer is forced to
-	// frequently resize its SyncClocks.
-	for i := 0; i < 100; i++ {
-		go func() {
-			for ctx.Err() == nil {
-				// Sleep in C for long enough that it is likely that the runtime
-				// will retake this goroutine's currently wired P.
-				C.usleep(1000 /* 1ms */)
-				runtime.Gosched() // avoid starvation (see #28701)
-			}
-		}()
-		go func() {
-			// Trigger lots of synchronization and memory reads/writes to
-			// increase the likelihood that the race described in #27660
-			// results in corruption of ThreadSanitizer's internal state
-			// and thus an assertion failure or segfault.
-			i := 0
-			for ctx.Err() == nil {
-				j := rand.Intn(100)
-				locks[j].Lock()
-				ints[j]++
-				locks[j].Unlock()
-				// Avoid making the loop unpreemptible
-				// for gccgo.
-				if i%0x1000000 == 0 {
-					runtime.Gosched()
-				}
-				i++
-			}
-		}()
-		time.Sleep(time.Millisecond)
-	}
-}