見てる：https://www.youtube.com/watch?v=H66L_U_5_5k 技術書典「第6回刺され！技術書アワード」受賞作品発表イベント

debug2: channel 0: open confirm rwindow 0 rmax 32768
debug3: receive packet: type 99
debug2: channel_input_status_confirm: type 99 id 0
debug2: X11 forwarding request accepted on channel 0

X11 forwardingがうまくいかない場合、
debug2: channel 0: open confirm rwindow 65536 rmax 32759
debug3: receive packet: type 100
debug2: channel_input_status_confirm: type 100 id 0
X11 forwarding request failed on channel 0

になるんだけど何故max 32759…？