[perl #59498] Segfault on weird but plain Perl in eval on 5.10.0 on Windows

["ebhanssen@cpan.org (via RT)" <perlbug-followup@perl.org>]

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This is a bug report for perl from ebhanssen@cpan.org,
generated with the help of perlbug 1.35 running under perl v5.8.8.


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[Please enter your report here]

  While tracking down the reasons for Test-Trap FAIL reports from
MSWin32 -- with good help from #Win32, in particular chorny -- we came
across the following simple Perl code:

perl -le "eval q{ BEGIN{*CORE::GLOBAL::exit=sub{print q{Passed}}}if(fork){wait;exit}else{*CORE::GLOBAL::exit=sub{print q{Okay}};exit;CORE::exit()} }"

  It passes on Unix with 5.8.8 or 5.10.0.

  It passes with ASPerl 5.8.8 and Cygwin perl 5.8.8.

  I don't have a Strawberry perl installation, but chorny was helpful
enough to try it on both 5.8.8 and 5.10.0, Strawberry perl.

  It passed with Strawberry perl 5.8.8.

  It segfaulted with Strawberry perl 5.10.0.

  I do know know if this is specific to Strawberry perl, or if it
affects all MSWin 5.10.0 perls.

  (I expect the code sample can be reduced further -- the prints are
likely irrelevant, and I don't know whether the *CORE::GLOBAL::exit
manipulation, the fork/wait, or both are relevant -- but without a
command line, I was disinclined to try.)


Thanks,
  Eirik

[Please do not change anything below this line]
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---
Flags:
    category=core
    severity=low
---
Site configuration information for perl v5.8.8:

Configured by root at Thu Feb 28 23:14:40 CST 2008.

Summary of my perl5 (revision 5 version 8 subversion 8) configuration:
  Platform:
    osname=linux, osvers=2.6.23.16-smp, archname=i486-linux-thread-multi
    uname='linux midas 2.6.23.16-smp #1 smp sat feb 23 00:20:30 cst 2008 i686 amd athlon(tm) 64 x2 dual core processor 5200+ authenticamd gnulinux '
    config_args='-de -Dprefix=/usr -Dvendorprefix=/usr -Dcccdlflags=-fPIC -Dinstallprefix=/usr -Doptimize=-O2 -march=i486 -mtune=i686 -Dusethreads -Duseithreads -Dpager=/usr/bin/less -isr -Dinc_version_list=5.8.7 5.8.6 5.8.5 5.8.4 5.8.3 5.8.2 5.8.1 5.8.0 -Darchname=i486-linux'
    hint=recommended, useposix=true, d_sigaction=define
    usethreads=define use5005threads=undef useithreads=define usemultiplicity=define
    useperlio=define d_sfio=undef uselargefiles=define usesocks=undef
    use64bitint=undef use64bitall=undef uselongdouble=undef
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='cc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS -fno-strict-aliasing -pipe -Wdeclaration-after-statement -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
    optimize='-O2 -march=i486 -mtune=i686',
    cppflags='-D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS -fno-strict-aliasing -pipe -Wdeclaration-after-statement -I/usr/local/include'
    ccversion='', gccversion='4.2.3', gccosandvers=''
    intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
    ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8
    alignbytes=4, prototype=define
  Linker and Libraries:
    ld='cc', ldflags =' -L/usr/local/lib'
    libpth=/usr/local/lib /lib /usr/lib
    libs=-lnsl -lgdbm -ldb -ldl -lm -lcrypt -lutil -lpthread -lc
    perllibs=-lnsl -ldl -lm -lcrypt -lutil -lpthread -lc
    libc=/lib/libc-2.7.so, so=so, useshrplib=false, libperl=libperl.a
    gnulibc_version='2.7'
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
    cccdlflags='-fPIC', lddlflags='-shared -L/usr/local/lib'

Locally applied patches:
    

---
@INC for perl v5.8.8:
    /usr/lib/perl5/5.8.8/i486-linux-thread-multi
    /usr/lib/perl5/5.8.8
    /usr/lib/perl5/site_perl/5.8.8/i486-linux-thread-multi
    /usr/lib/perl5/site_perl/5.8.8
    /usr/lib/perl5/site_perl/5.8.7
    /usr/lib/perl5/site_perl
    /usr/lib/perl5/vendor_perl/5.8.8/i486-linux-thread-multi
    /usr/lib/perl5/vendor_perl/5.8.8
    /usr/lib/perl5/vendor_perl
    .

---
Environment for perl v5.8.8:
    HOME=/home/eirik
    LANG=en_US
    LANGUAGE (unset)
    LC_COLLATE=C
    LD_LIBRARY_PATH (unset)
    LOGDIR (unset)
    PATH=/usr/local/sbin:/usr/sbin:/sbin:/usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin:/usr/games:/local/bin:/usr/share/texmf/bin:/home/eirik/bin
    PERL_BADLANG (unset)
    SHELL=/bin/bash

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