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[perl #131224] bleadperl breaks HARDAKER/QWizard-3.15.tar.gz onWindows

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From:
James E Keenan via RT
Date:
April 28, 2017 19:13
Subject:
[perl #131224] bleadperl breaks HARDAKER/QWizard-3.15.tar.gz onWindows
Message ID:
rt-4.0.24-24507-1493406806-1047.131224-15-0@perl.org
On Fri, 28 Apr 2017 19:06:17 GMT, jkeenan@pobox.com wrote:
> This should have originally been sent to perlbug@perl.org.
> 
> 
> -------- Forwarded Message --------
> Subject: bleadperl breaks HARDAKER/QWizard-3.15.tar.gz on Windows
> Date: Fri, 28 Apr 2017 16:11:49 +0300
> From: Alexandr Ciornii <alexchorny@gmail.com>
> To: p5p <perl5-porters@perl.org>
> Newsgroups: perl.perl5.porters
> 
> This is a bug report for perl from alexchorny@gmail.com,
> generated with the help of perlbug 1.40 running under perl 5.25.10.
> 
> 
> -----------------------------------------------------------------
> [Please describe your issue here]
> 
> Result of running Makefile.PL:
> Checking if your kit is complete...
> Looks good
> ERROR from evaluation of
> strawberry-perl-5.25.12.1\cpan\build\QWizard-3.15-
> 0\Generator_base/Makefile.PL:
> panic: attempt to copy freed scalar 3f8d0c to 1358a54 at
> strawberry-perl-5.25.12.1/perl/lib/Carp.pm line 229.
> Writing MYMETA.yml and MYMETA.json
> Writing MYMETA.yml and MYMETA.json
> Writing MYMETA.yml and MYMETA.json
> 
> See also
> http://www.cpantesters.org/cpan/report/74da0c86-6c12-1014-8ecb-
> 069185000ecc
> 
> Tested on Strawberry perl 5.25.12, 5.25.10 and 5.25.8 32-bit int,
> Windows XP. Does not fail on 5.24.0. Has problems on Linux too, but
> different, see http://matrix.cpantesters.org/?dist=QWizard+3.15 .
> 
> Also reported in modules bug tracker:
> https://rt.cpan.org/Ticket/Display.html?id=121401
> 

Bisection (manual) on Linux suggests that the following commit is responsible:

#####
commit 8b0c3377906a6f991cd6c21a674bf9561d85e3cb
Author:     David Mitchell <davem@iabyn.com>
AuthorDate: Wed Oct 5 10:10:56 2016 +0100
Commit:     David Mitchell <davem@iabyn.com>
CommitDate: Wed Oct 26 08:37:27 2016 +0100

    Better optimise array and hash assignment
    
    [perl #127999] Slowdown in split + list assign
...
#####

Dave, can you take a look?

Thank you very much.

-- 
James E Keenan (jkeenan@cpan.org)

---
via perlbug:  queue: perl5 status: new
https://rt.perl.org/Ticket/Display.html?id=131224

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