diff --git a/weed/filer/reader_at.go b/weed/filer/reader_at.go
index fda0c9766..5e8fd6154 100644
--- a/weed/filer/reader_at.go
+++ b/weed/filer/reader_at.go
@@ -267,7 +267,6 @@ func (c *ChunkReadAt) doReadAt(ctx context.Context, p []byte, offset int64) (n i
 		g.SetLimit(concurrency)
 
 		for _, task := range tasks {
-			task := task // capture for closure
 			g.Go(func() error {
 				// Read directly into the correct position in the output buffer
 				copied, readErr := c.readChunkSliceAtForParallel(gCtx, p[task.bufferStart:task.bufferEnd], task.chunk, task.chunkOffset)
diff --git a/weed/filer/reader_cache.go b/weed/filer/reader_cache.go
index 0010f0386..160dcc974 100644
--- a/weed/filer/reader_cache.go
+++ b/weed/filer/reader_cache.go
@@ -223,7 +223,6 @@ func (s *SingleChunkCacher) destroy() {
 	if s.data != nil {
 		mem.Free(s.data)
 		s.data = nil
-		close(s.cacheStartedCh)
 	}
 }