diff --git a/src/net/sendfile_solaris.go b/src/net/sendfile_solaris.go
index 0966575696..f6833813fd 100644
--- a/src/net/sendfile_solaris.go
+++ b/src/net/sendfile_solaris.go
@@ -26,6 +26,8 @@ const maxSendfileSize int = 4 << 20
 //
 // if handled == false, sendFile performed no work.
 func sendFile(c *netFD, r io.Reader) (written int64, err error, handled bool) {
+	return // Solaris sendfile is disabled until Issue 13892 is understood and fixed
+
 	// Solaris uses 0 as the "until EOF" value. If you pass in more bytes than the
 	// file contains, it will loop back to the beginning ad nauseam until it's sent
 	// exactly the number of bytes told to. As such, we need to know exactly how many