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From: Eli Zaretskii <eliz@gnu.org>
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Subject: Re: Pure space and overflow question
Date: Thu, 20 Feb 2020 21:56:48 +0200
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To: Andrea Corallo <akrl@sdf.org>
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> From: Andrea Corallo <akrl@sdf.org>
> Date: Thu, 20 Feb 2020 18:04:04 +0000
> 
> Looking at
> https://www.gnu.org/software/emacs/manual/html_node/elisp/Pure-Storage.html
> my understanding is that when pure space is overflowed no garbage
> collection happen anymore.
> 
> But I'm running an Emacs where I can evaluate:
> 
> pure-space-overflow -> t
> 
> (garbage-collect) -> ((conses 16 1469392 534996) ....)
> 
> gc-elapsed -> 107.396662957
> 
> Is this expected?

If your Emacs was pdumped, yes.