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Subject: \b causes panic when using /aa option

From:
Chas. Owens
Date:
July 29, 2011 14:45
Subject:
Subject: \b causes panic when using /aa option
Message ID:
CAH2YjjHYMYXOhQ6BL4dSj=9Bt+v=AB_hyvGSL_fWhT77t3d0vQ@mail.gmail.com
Apparently I don't have perlbug setup correctly, so here is what I
tried to send with it:

This is a bug report for perl from chas.owens@gmail.com,
generated with the help of perlbug 1.39 running under perl 5.15.0.


-----------------------------------------------------------------

The following test script causes a panic in Perl 5.15.0 and 5.14.1 on
OS X 10.6.8.

It was originally reported in a more complicated case on Win32 using 5.14.1.

#!/usr/bin/perl

use 5.014;

my $foo = "foo";
$foo =~ s/\bfoo/bar/aa;
print "$foo\n";

The actual panic message is

panic: Unexpected FLAGS 4 in op 12 at x.pl line 6.


[Please do not change anything below this line]
-----------------------------------------------------------------
---
Flags:
   category=core
   severity=critical
---
Site configuration information for perl 5.15.0:

Configured by cowens at Fri Jul  1 11:27:05 EDT 2011.

Summary of my perl5 (revision 5 version 15 subversion 0) configuration:

 Platform:
   osname=darwin, osvers=10.7.0, archname=darwin-2level
   uname='darwin amans.local 10.7.0 darwin kernel version 10.7.0: sat
jan 29 15:17:16 pst 2011; root:xnu-1504.9.37~1release_i386 i386 '
   config_args='-de
-Dprefix=/Users/cowens/apps/perlbrew/perls/perl-5.15.0 -Dusedevel'
   hint=recommended, useposix=true, d_sigaction=define
   useithreads=undef, usemultiplicity=undef
   useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
   use64bitint=define, use64bitall=define, uselongdouble=undef
   usemymalloc=n, bincompat5005=undef
 Compiler:
   cc='cc', ccflags ='-fno-common -DPERL_DARWIN -fno-strict-aliasing
-pipe -fstack-protector -I/usr/local/include -I/opt/local/include',
   optimize='-O3',
   cppflags='-fno-common -DPERL_DARWIN -fno-strict-aliasing -pipe
-fstack-protector -I/usr/local/include -I/opt/local/include'
   ccversion='', gccversion='4.2.1 (Apple Inc. build 5664)', 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='double', nvsize=8, Off_t='off_t',
lseeksize=8
   alignbytes=8, prototype=define
 Linker and Libraries:
   ld='env MACOSX_DEPLOYMENT_TARGET=10.3 cc', ldflags ='
-fstack-protector -L/usr/local/lib -L/opt/local/lib'
   libpth=/usr/local/lib /opt/local/lib /usr/lib
   libs=-ldbm -ldl -lm -lutil -lc
   perllibs=-ldl -lm -lutil -lc
   libc=/usr/lib/libc.dylib, so=dylib, useshrplib=false, libperl=libperl.a
   gnulibc_version=''
 Dynamic Linking:
   dlsrc=dl_dlopen.xs, dlext=bundle, d_dlsymun=undef, ccdlflags=' '
   cccdlflags=' ', lddlflags=' -bundle -undefined dynamic_lookup
-L/usr/local/lib -L/opt/local/lib -fstack-protector'

Locally applied patches:


---
@INC for perl 5.15.0:
   /Users/cowens/apps/perlbrew/perls/perl-5.15.0/lib/site_perl/5.15.0/darwin-2level
   /Users/cowens/apps/perlbrew/perls/perl-5.15.0/lib/site_perl/5.15.0
   /Users/cowens/apps/perlbrew/perls/perl-5.15.0/lib/5.15.0/darwin-2level
   /Users/cowens/apps/perlbrew/perls/perl-5.15.0/lib/5.15.0
   .

---
Environment for perl 5.15.0:
   DYLD_LIBRARY_PATH (unset)
   HOME=/Users/cowens
   LANG=en_US.UTF-8
   LANGUAGE (unset)
   LD_LIBRARY_PATH=/Users/cowens/apps/brew/lib
   LOGDIR (unset)
   PATH=/Users/cowens/apps/python/bin:/Users/cowens/apps/perlbrew/bin:/Users/cowens/apps/perlbrew/perls/perl-5.15.0/bin:~/bin:/Library/Application
Support/VMware Fusion/:/Users/cowens/apps/brew/sbin:/Users/cowens/apps/vim/bin:/Users/cowens/apps/python/bin:/Users/cowens/apps/citrusperl/bin:/Users/cowens/apps/brew/bin:/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin
   PERLBREW_HOME=/Users/cowens/.perlbrew
   PERLBREW_PATH=/Users/cowens/apps/perlbrew/bin:/Users/cowens/apps/perlbrew/perls/perl-5.15.0/bin
   PERLBREW_PERL=perl-5.15.0
   PERLBREW_ROOT=/Users/cowens/apps/perlbrew
   PERLBREW_VERSION=0.25
   PERL_BADLANG (unset)
   PERL_CPANM_OPT=--skip-installed --prompt
   PERL_INLINE_DIRECTORY=/Users/cowens/.inline
   SHELL=/bin/bash

-- 
Chas. Owens
wonkden.net
The most important skill a programmer can have is the ability to read.



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