GNU bug report logs -
#60522
make-vector takes 100% cpu if called without argument in the REPL
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Reported by: Sascha Ziemann <ceving <at> gmail.com>
Date: Tue, 3 Jan 2023 16:58:02 UTC
Severity: normal
Done: Ludovic Courtès <ludo <at> gnu.org>
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(Tue, 03 Jan 2023 16:58:02 GMT)
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(Tue, 03 Jan 2023 16:58:02 GMT)
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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):
The following throws an error:
guile -c '(make-vector)'
But the evaluation of '(make-vector)' in the REPL generats just a warning:
;;; <stdin>:1:0: warning: possibly wrong number of arguments to `make-vector'
and seems to enter an endless loop afterwards.
Environment:
$ guile --version
guile (GNU Guile) 3.0.5
Packaged by Debian (3.0.5-deb+3.0.5-4)
Copyright (C) 2021 Free Software Foundation, Inc.
License LGPLv3+: GNU LGPL 3 or later <http://gnu.org/licenses/lgpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
$ uname -a
Linux l2108 5.10.0-20-amd64 #1 SMP Debian 5.10.158-2 (2022-12-13)
x86_64 GNU/Linux
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bug#60522
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(Tue, 03 Jan 2023 19:09:02 GMT)
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Message #8 received at submit <at> debbugs.gnu.org (full text, mbox):
[Message part 1 (text/plain, inline)]
On Tue, Jan 03, 2023 at 05:57:19PM +0100, Sascha Ziemann wrote:
> The following throws an error:
> guile -c '(make-vector)'
>
> But the evaluation of '(make-vector)' in the REPL generats just a warning:
>
> ;;; <stdin>:1:0: warning: possibly wrong number of arguments to `make-vector'
>
> and seems to enter an endless loop afterwards.
Can confirm for 3.0.8.57-bc3b1. It actually eats CPU, can be interrupted
with c-C.
Cheers
--
t
>
[signature.asc (application/pgp-signature, inline)]
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Ludovic Courtès <ludo <at> gnu.org>
:
You have taken responsibility.
(Mon, 16 Jan 2023 14:38:03 GMT)
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Sascha Ziemann <ceving <at> gmail.com>
:
bug acknowledged by developer.
(Mon, 16 Jan 2023 14:38:03 GMT)
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Message #13 received at 60522-done <at> debbugs.gnu.org (full text, mbox):
Hi,
Sascha Ziemann <ceving <at> gmail.com> skribis:
> The following throws an error:
> guile -c '(make-vector)'
>
> But the evaluation of '(make-vector)' in the REPL generats just a warning:
>
> ;;; <stdin>:1:0: warning: possibly wrong number of arguments to `make-vector'
>
> and seems to enter an endless loop afterwards.
The guts of the problem is an endless loop while reducing primitives:
--8<---------------cut here---------------start------------->8---
scheme@(language tree-il primitives)> (make-call #f (make-primitive-ref #f 'make-vector) '())
$21 = #<tree-il (call (primitive make-vector))>
scheme@(language tree-il primitives)> (resolve-primitives $21 (current-module))
$22 = #<tree-il (primcall make-vector)>
scheme@(language tree-il primitives)> (expand-primcall $22)
$23 = #<tree-il (call (primitive make-vector))>
--8<---------------cut here---------------end--------------->8---
This is fixed in 51152392ef04b053e3c7b2576473df2df9d08fe0:
--8<---------------cut here---------------start------------->8---
scheme@(language tree-il primitives)> (expand-primcall $22)
$32 = #<tree-il (primcall make-vector)>
--8<---------------cut here---------------end--------------->8---
Thanks!
Ludo’.
bug archived.
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(Tue, 14 Feb 2023 12:24:06 GMT)
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This bug report was last modified 1 year and 43 days ago.
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