Re: [Bug #14015] pty regressed again, breaking expect and gcc'stestsuite

[Alan Cox]

> So, it will use the 64kb limit at least few paths, and I'm not sure
> though, non-n_tty path (e.g. ppp) doesn't use tty_write_room() check
> always. It may not be consistent if we removed pty_space() in pty_write().

The correct behaviour for most network protocols to overflow is to drop
packets so the behaviour of not checking was intentional.

Alan
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