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-rwxr-xr-xbin/dtas-readahead1
1 files changed, 1 insertions, 0 deletions
diff --git a/bin/dtas-readahead b/bin/dtas-readahead
index 40a4ebd..68186dc 100755
--- a/bin/dtas-readahead
+++ b/bin/dtas-readahead
@@ -178,6 +178,7 @@ begin
     # queue has priority, work on it, first
     queue = YAML.load(c.req('queue cat'))
     while @todo_ra > 0 && track = queue.shift
+      next unless track.kind_of?(String)
       fp = nil
       begin
         fp = work[track] ||= do_open(track)