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

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Package: emacs;

Reported by: Michael Heerdegen <michael_heerdegen <at> web.de>

Date: Tue, 27 Feb 2018 09:23:01 UTC

Severity: normal

Tags: fixed, patch

Found in version 26.0.91

Done: Noam Postavsky <npostavs <at> gmail.com>

Bug is archived. No further changes may be made.

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Message #74 received at 30626 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Michael Heerdegen <michael_heerdegen <at> web.de>
Cc: npostavs <at> gmail.com, 30626 <at> debbugs.gnu.org
Subject: Re: bug#30626: 26.0.91;
 Crash when traversing a `stream-of-directory-files'
Date: Thu, 01 Mar 2018 17:00:33 +0200

> From: Michael Heerdegen <michael_heerdegen <at> web.de>
> Cc: npostavs <at> gmail.com,  30626 <at> debbugs.gnu.org
> Date: Thu, 01 Mar 2018 12:25:43 +0100
> 
> Seems that whether we get a crash or not depends on details in the
> implementation of lexical-binding.

Byte compilation doesn't just produce byte code, it also changes the
code into an equivalent one, but "equivalence" in this context doesn't
include side effects like stack usage.  As an extreme example,
consider a tail-recursive program that the byte compiler converts (or
at least might convert theoretically) into a loop.
This bug report was last modified 6 years and 44 days ago.

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