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-rw-r--r--consensus/ethash/algorithm_test.go1
1 files changed, 1 insertions, 0 deletions
diff --git a/consensus/ethash/algorithm_test.go b/consensus/ethash/algorithm_test.go
index f0c6465fd..e7625f7c0 100644
--- a/consensus/ethash/algorithm_test.go
+++ b/consensus/ethash/algorithm_test.go
@@ -730,6 +730,7 @@ func TestConcurrentDiskCacheGeneration(t *testing.T) {
go func(idx int) {
defer pend.Done()
ethash := New(Config{cachedir, 0, 1, "", 0, 0, ModeNormal})
+ defer ethash.Close()
if err := ethash.VerifySeal(nil, block.Header()); err != nil {
t.Errorf("proc %d: block verification failed: %v", idx, err)
}