GNU bug report logs - #61073
‘spawn’ crashes when passed a non-file port

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Ludovic Courtès <ludo <at> gnu.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#61073: closed (‘spawn’ crashes
 when passed a non-file port)
Date: Thu, 26 Jan 2023 08:46:02 +0000

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Your message dated Thu, 26 Jan 2023 09:45:35 +0100
with message-id <87y1ppr8eo.fsf <at> gnu.org>
and subject line Re: bug#61073: ‘spawn’ crashes when passed a non-file port
has caused the debbugs.gnu.org bug report #61073,
regarding ‘spawn’ crashes when passed a non-file port
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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61073: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=61073
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Contact help-debbugs <at> gnu.org with problems

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From: Ludovic Courtès <ludo <at> gnu.org>
To: bug-guile <at> gnu.org
Subject: ‘spawn’ crashes when passed a non-file port
Date: Thu, 26 Jan 2023 09:30:25 +0100

Here’s an example:

--8<---------------cut here---------------start------------->8---
$ ./meta/guile
GNU Guile 3.0.9
Copyright (C) 1995-2023 Free Software Foundation, Inc.

Guile comes with ABSOLUTELY NO WARRANTY; for details type `,show w'.
This program is free software, and you are welcome to redistribute it
under certain conditions; type `,show c' for details.

Enter `,help' for help.
scheme@(guile-user)> (with-error-to-port (%make-void-port "w") (lambda () (spawn "date" (list "date"))))
Segmentation fault
--8<---------------cut here---------------end--------------->8---

This is due to the careless use of ‘SCM_FPORT_FDES’ there.

Ludo’.

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From: Ludovic Courtès <ludo <at> gnu.org>
To: 61073-done <at> debbugs.gnu.org
Subject: Re: bug#61073: ‘spawn’ crashes when passed a
 non-file port
Date: Thu, 26 Jan 2023 09:45:35 +0100

Ludovic Courtès <ludo <at> gnu.org> skribis:

> Here’s an example:
>
> $ ./meta/guile
> GNU Guile 3.0.9
> Copyright (C) 1995-2023 Free Software Foundation, Inc.
>
> Guile comes with ABSOLUTELY NO WARRANTY; for details type `,show w'.
> This program is free software, and you are welcome to redistribute it
> under certain conditions; type `,show c' for details.
>
> Enter `,help' for help.
> scheme@(guile-user)> (with-error-to-port (%make-void-port "w") (lambda () (spawn "date" (list "date"))))
> Segmentation fault
>
> This is due to the careless use of ‘SCM_FPORT_FDES’ there.

Fixed in 5b42f8c154906584455a4989038406c88b723cb0.

Ludo’.

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