diff -r 9d33d6e0d442 -r 07e40d589b64 hgext/largefiles/proto.py
--- a/hgext/largefiles/proto.py	Mon Apr 15 23:37:43 2013 +0200
+++ b/hgext/largefiles/proto.py	Tue Apr 16 00:40:21 2013 +0200
@@ -63,7 +63,7 @@
     # ssh proto does for string responses.
     def generator():
         yield '%d\n' % length
-        for chunk in f:
+        for chunk in util.filechunkiter(f):
             yield chunk
     return wireproto.streamres(generator())