gitlab 升级到 5.3 之后不能pull

色破飞机

　　/usr/local/lib/ruby/1.9.1/net/protocol.rb:146:in `rescue in rbuf_fill': Timeout::Error (Timeout::Error)
　　from /usr/local/lib/ruby/1.9.1/net/protocol.rb:140:in `rbuf_fill'
　　from /usr/local/lib/ruby/1.9.1/net/protocol.rb:122:in `readuntil'
　　from /usr/local/lib/ruby/1.9.1/net/protocol.rb:132:in `readline'
　　from /usr/local/lib/ruby/1.9.1/net/http.rb:2562:in `read_status_line'
　　from /usr/local/lib/ruby/1.9.1/net/http.rb:2551:in `read_new'
　　from /usr/local/lib/ruby/1.9.1/net/http.rb:1319:in `block in transport_request'
　　from /usr/local/lib/ruby/1.9.1/net/http.rb:1316:in `catch'
　　from /usr/local/lib/ruby/1.9.1/net/http.rb:1316:in `transport_request'
　　from /usr/local/lib/ruby/1.9.1/net/http.rb:1293:in `request'
　　from /home/git/gitlab-shell/lib/gitlab_net.rb:56:in `block in get'
　　from /usr/local/lib/ruby/1.9.1/net/http.rb:745:in `start'
　　from /home/git/gitlab-shell/lib/gitlab_net.rb:56:in `get'
　　from /home/git/gitlab-shell/lib/gitlab_net.rb:17:in `allowed?'
　　from /home/git/gitlab-shell/lib/gitlab_shell.rb:51:in `validate_access'
　　from /home/git/gitlab-shell/lib/gitlab_shell.rb:21:in `exec'
　　from /home/git/gitlab-shell/bin/gitlab-shell:16:in `<main>'
　　fatal: Could not read from remote repository.