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bug#30626: 26.0.91; Crash when traversing a `stream-of-directory-files'

From: Eli Zaretskii
Subject: bug#30626: 26.0.91; Crash when traversing a `stream-of-directory-files'
Date: Wed, 28 Feb 2018 18:00:00 +0200

> From: Michael Heerdegen <address@hidden>
> Cc: Eli Zaretskii <address@hidden>,  address@hidden
> Date: Wed, 28 Feb 2018 11:58:49 +0100
> Yes, that's exactly how it's implemented.  When requesting more elements
> from the stream, that becomes
>       (FIRST-VALUE .
> When we loop over the string, the cons whose car is the FIRST-VALUE,
> let's call it cons1, is immediately thrown away, and we continue with
> etc.

How do you see that the car is immediately thrown away?

> AFAIU the problem is that the cons1 still exists in memory until garbage
> collection kicks in.  When that happens, the cons1 points to a largely
> recursive cons structure, though this structure is never referenced from
> Lisp in this form.

What is "cons1" in this context?

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