}
}

func BenchmarkSubRacy(b *testing.B) {
	if os.Getenv("GO_WANT_HELPER_PROCESS") != "1" {
		b.Skipf("skipping intentionally-racy benchmark")
	}

	b.Run("non-racy", func(b *testing.B) {
		tot := 0
		for i := 0; i < b.N; i++ {
			tot++
		}
		_ = tot
	})

	b.Run("racy", func(b *testing.B) {
		for i := 0; i < b.N; i++ {
			doRace()
		}
	})

	doRace() // should be reported separately

   * unspecified amount of padding; you almost certainly mean to call {@link
   * #newArrayListWithCapacity} (see that method for further advice on usage).
   *
   * <p><b>Note:</b> This method will soon be deprecated. Even in the rare case that you do want
   * some amount of padding, it's best if you choose your desired amount explicitly.
   *
   * @param estimatedSize an estimate of the eventual {@link List#size()} of the new list

  Disk:
    Approximately 10MB is required for the Maven installation itself. In addition to
    that, additional disk space will be used for your local Maven repository. The size
    of your local repository will vary depending on usage but expect at least 500MB.
  Operating System:
    Windows:
      Windows 2000 or above.
    Unix based systems (Linux, Solaris and Mac OS X) and others:
      No minimum requirement.

	// Note: The size of the security token that STS APIs return is not fixed. We
	// strongly recommend that you make no assumptions about the maximum size. As
	// of this writing, the typical size is less than 4096 bytes, but that can vary.
	// Also, future updates to AWS might require larger sizes.
	Credentials auth.Credentials `xml:",omitempty"`

	// A percentage value that indicates the size of the policy in packed form.

	req *http.Request,
) {
	// ETag must be enclosed in double quotes:
	// https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/ETag
	quotedHash := strconv.Quote(hash)
	w.Header().Set("ETag", quotedHash)
	w.Header().Set("Vary", "Accept")
	w.Header().Set("Cache-Control", "public")

	// If Request includes If-None-Match and matches hash, reply with 304
	// Otherwise, we delegate to the handler for actual content
	//

cp go.mod.orig go.mod

go get -u example.net/a@v0.1.0 example.net/b/...@v0.1.0
go list -m all
stdout '^example.net/a v0.1.0 '
stdout '^example.net/b v0.1.0 '
stdout '^example.net/c '  # BUG, but a minor and rare one


-- go.mod --
module example

go 1.15

replace (
	example.net/a v0.1.0 => ./a1
	example.net/b v0.1.0 => ./b1
	example.net/b v0.2.0 => ./b2
	example.net/c v0.1.0 => ./c1

   * unspecified amount of padding; you almost certainly mean to call {@link
   * #newArrayListWithCapacity} (see that method for further advice on usage).
   *
   * <p><b>Note:</b> This method will soon be deprecated. Even in the rare case that you do want
   * some amount of padding, it's best if you choose your desired amount explicitly.
   *
   * @param estimatedSize an estimate of the eventual {@link List#size()} of the new list

  private volatile @Nullable Logger logger;

  LazyLogger(Class<?> ownerOfLogger) {
    this.loggerName = ownerOfLogger.getName();
  }

  Logger get() {
    /*
     * We use double-checked locking. We could the try racy single-check idiom, but that would
     * depend on Logger not contain mutable state.
     *
     * We could use Suppliers.memoizingSupplier here, but I micro-optimized to this implementation

    }
  }

  /**
   * Initialize the cache. This will include reading the journal files from the storage and building
   * up the necessary in-memory cache information.
   *
   * The initialization time may vary depending on the journal file size and the current actual
   * cache size. The application needs to be aware of calling this function during the
   * initialization phase and preferably in a background worker thread.
   *

	pthread_t th;
	pthread_create(&th, 0, threadFunc, 0);
}
*/
import "C"

var done chan bool
var racy int

//export goCallback
func goCallback() {
	racy++
	done <- true
}

func main() {
	done = make(chan bool)
	var c C.cb
	C.startThread(&c)
	racy++
	<- done
}
`, []string{`==================
WARNING: DATA RACE
Read at 0x[0-9,a-f]+ by main goroutine: