Re: [PATCH v2] Document /proc/pid PID reuse behavior

[Matthew Wilcox]

On Tue, Nov 20, 2018 at 10:18:29AM +0100, Pavel Machek wrote:
> > would ever rely on the pid being reused while having the descriptor
> > open. How would that make sense?
> 
> I agree this is corner space, but users might be surprised that
> keeping FDs of /proc/pid/X would lead to PID space exhaustion, for
> example.

We have a limit on the number of FDs a process can have open for a reason.
Well, for many reasons.