[Bug 2492] Incomplete output of child process

[bugzilla-daemon at bugzilla.mindrot.org]

https://bugzilla.mindrot.org/show_bug.cgi?id=2492

--- Comment #15 from Volth <openssh at volth.com> ---
(In reply to Marc Aurele La France from comment #13)
> EGAIN means there is no data available at the time of the call. 
> But, in the case here, this contradicts the fact that the child has
> previously written the last of its data, closed the tty and
> signalled the parent about its demise.  Therefore, there >is< data
> available, but for whatever reason 15.10's kernel decides not to
> return it.

I am not sure the data must be available.
Note that /bin/ping is not spawned by openssh directly, the data to be
copied (perhaps lazily) through the chain of stdouts.

> So, I'll ask (e)again: does 7.1p1 exhibit the same behaviour on
> 15.04 (which runs a much older kernel) or not?

I have not tried this combination.

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