1 files changed, 12 insertions, 5 deletions
diff --git a/weed/filer2/filechunks.go b/weed/filer2/filechunks.go
index 9de888d50..d7c31bf0f 100644
--- a/weed/filer2/filechunks.go
+++ b/weed/filer2/filechunks.go
@@ -134,17 +134,18 @@ func ViewFromVisibleIntervals(visibles []VisibleInterval, offset int64, size int
 
 	for _, chunk := range visibles {
 
-		if chunk.start <= offset && offset < chunk.stop && offset < stop {
+		chunkStart, chunkStop := max(offset, chunk.start), min(stop, chunk.stop)
+
+		if chunkStart < chunkStop {
 			views = append(views, &ChunkView{
 				FileId:      chunk.fileId,
-				Offset:      offset - chunk.start, // offset is the data starting location in this file id
-				Size:        uint64(min(chunk.stop, stop) - offset),
-				LogicOffset: offset,
+				Offset:      chunkStart - chunk.start,
+				Size:        uint64(chunkStop - chunkStart),
+				LogicOffset: chunkStart,
 				ChunkSize:   chunk.chunkSize,
 				CipherKey:   chunk.cipherKey,
 				IsGzipped:   chunk.isGzipped,
 			})
-			offset = min(chunk.stop, stop)
 		}
 	}
 
@@ -266,3 +267,9 @@ func min(x, y int64) int64 {
 	}
 	return y
 }
+func max(x, y int64) int64 {
+	if x <= y {
+		return y
+	}
+	return x
+}