"ctime":                         "1386065770.449252304",
				"SCHILY.xattr.security.selinux": "unconfined_u:object_r:default_t:s0\x00",
			},
			Format: FormatPAX,
		}},
	}, {
		// Matches the behavior of GNU, BSD, and STAR tar utilities.
		file: "testdata/gnu-multi-hdrs.tar",
		headers: []*Header{{
			Name:     "GNU2/GNU2/long-path-name",
			Linkname: "GNU4/GNU4/long-linkpath-name",
			ModTime:  time.Unix(0, 0),

	}
	wg.Wait()
}

func TestEmptyReaderConcurrent(t *testing.T) {
	// Test for the race detector, to verify a Read that doesn't yield any bytes
	// is okay to use from multiple goroutines. This was our historic behavior.
	// See golang.org/issue/7856
	r := NewReader([]byte{})
	var wg sync.WaitGroup
	for i := 0; i < 5; i++ {
		wg.Add(2)
		go func() {
			defer wg.Done()
			var buf [1]byte
			r.Read(buf[:])
		}()