[perl #118627] Bleadperl v5.19.0-246-g13b0f67 breaks ROCKY/Devel-Trepan-0.50.tar.gz

# New Ticket Created by  (Andreas J. Koenig) 
# Please include the string:  [perl #118627]
# in the subject line of all future correspondence about this issue. 
# <URL: https://rt.perl.org:443/rt3/Ticket/Display.html?id=118627 >


git bisect
----------
13b0f67d12a6400f01bbc27945223ca68a12a7ef is the first bad commit
commit 13b0f67d12a6400f01bbc27945223ca68a12a7ef
Author: David Mitchell <davem@iabyn.com>
Date:   Wed May 22 16:38:29 2013 +0100

    re-enable Copy-on-Write by default.

sample fail report
------------------
http://www.cpantesters.org/cpan/report/f1a6bdd2-dbbc-11e2-9c4f-ca11697f9654

I have already communicated with rocky that this is the difference
between expected and got:

% diff -au t/data/opt-e.{right,got}                                                       
--- t/data/opt-e.right  2013-06-23 06:23:12.000000000 +0200
+++ t/data/opt-e.got    2013-06-24 07:39:14.142577837 +0200
@@ -1,6 +1,6 @@
 -- (tempfile.pl:1)
-no warnings "once";$x=1; $y=2
+se Devel::Trepan;no warnings "once";$x=1; $y=2
 -- (tempfile.pl:1)
-no warnings "once";$x=1; $y=2
+se Devel::Trepan;no warnings "once";$x=1; $y=2
 Debugged program terminated.  Use 'q' to quit or 'R' to restart.
 trepan.pl: That's all, folks...

There are binary nulls involved too.

perl -V
-------
% /home/src/perl/repoperls/installed-perls/perl/v5.19.0-246-g13b0f67/a2da/bin/perl -V
Summary of my perl5 (revision 5 version 19 subversion 1) configuration:
  Commit id: 13b0f67d12a6400f01bbc27945223ca68a12a7ef
  Platform:
    osname=linux, osvers=3.9-1-amd64, archname=x86_64-linux-thread-multi-ld
    uname='linux k83 3.9-1-amd64 #1 smp debian 3.9.6-1 x86_64 gnulinux '
    config_args='-Dprefix=/home/src/perl/repoperls/installed-perls/perl/v5.19.0-246-g13b0f67/a2da -Dmyhostname=k83 -Dinstallusrbinperl=n -Uversiononly -Dusedevel -des -Ui_db -Duseithreads -Duselongdouble -DDEBUGGING=-g'
    hint=recommended, useposix=true, d_sigaction=define
    useithreads=define, usemultiplicity=define
    useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
    use64bitint=define, use64bitall=define, uselongdouble=define
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='cc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
    optimize='-O2 -g',
    cppflags='-D_REENTRANT -D_GNU_SOURCE -fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include'
    ccversion='', gccversion='4.8.1', gccosandvers=''
    intsize=4, longsize=8, ptrsize=8, doublesize=8, byteorder=12345678
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16
    ivtype='long', ivsize=8, nvtype='long double', nvsize=16, Off_t='off_t', lseeksize=8
    alignbytes=16, prototype=define
  Linker and Libraries:
    ld='cc', ldflags =' -fstack-protector -L/usr/local/lib'
    libpth=/usr/local/lib /lib/x86_64-linux-gnu /lib/../lib /usr/lib/x86_64-linux-gnu /usr/lib/../lib /lib /usr/lib
    libs=-lnsl -lgdbm -ldb -ldl -lm -lcrypt -lutil -lpthread -lc -lgdbm_compat
    perllibs=-lnsl -ldl -lm -lcrypt -lutil -lpthread -lc
    libc=, so=so, useshrplib=false, libperl=libperl.a
    gnulibc_version='2.17'
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
    cccdlflags='-fPIC', lddlflags='-shared -O2 -g -L/usr/local/lib -fstack-protector'


Characteristics of this binary (from libperl):
  Compile-time options: HAS_TIMES MULTIPLICITY PERLIO_LAYERS
                        PERL_DONT_CREATE_GVSV
                        PERL_HASH_FUNC_ONE_AT_A_TIME_HARD
                        PERL_IMPLICIT_CONTEXT PERL_MALLOC_WRAP
                        PERL_NEW_COPY_ON_WRITE PERL_NEW_COPY_ON_WRITE
                        PERL_PRESERVE_IVUV PERL_USE_DEVEL USE_64_BIT_ALL
                        USE_64_BIT_INT USE_ITHREADS USE_LARGE_FILES
                        USE_LOCALE USE_LOCALE_COLLATE USE_LOCALE_CTYPE
                        USE_LOCALE_NUMERIC USE_LONG_DOUBLE USE_PERLIO
                        USE_PERL_ATOF USE_REENTRANT_API
  Built under linux
  Compiled at Jun 25 2013 00:57:43
  @INC:
    /home/src/perl/repoperls/installed-perls/perl/v5.19.0-246-g13b0f67/a2da/lib/site_perl/5.19.1/x86_64-linux-thread-multi-ld
    /home/src/perl/repoperls/installed-perls/perl/v5.19.0-246-g13b0f67/a2da/lib/site_perl/5.19.1
    /home/src/perl/repoperls/installed-perls/perl/v5.19.0-246-g13b0f67/a2da/lib/5.19.1/x86_64-linux-thread-multi-ld
    /home/src/perl/repoperls/installed-perls/perl/v5.19.0-246-g13b0f67/a2da/lib/5.19.1
    .
>

-- 
andreas

• [perl #118627] Bleadperl v5.19.0-246-g13b0f67 breaks ROCKY/Devel-Trepan-0.50.tar.gz by perlbug-followup