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[perl #42166] panic copying freed scalar in Carp::Heavy
From:
david @ mongueurs . net
Date:
March 29, 2007 23:58
Subject:
[perl #42166] panic copying freed scalar in Carp::Heavy
Message ID:
rt-3.6.HEAD-1687-1175178786-989.42166-75-0@perl.org
# New Ticket Created by david@mongueurs.net
# Please include the string: [perl #42166]
# in the subject line of all future correspondence about this issue.
# <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=42166 >
This is a bug report for perl from david@landgren.net,
generated with the help of perlbug 1.35 running under perl 5.9.5.
-----------------------------------------------------------------
[Please enter your report here]
Passing @ARGV to a function, and then shifting @ARGV directly and carping the value
results in rather strang errors:
In blead:
david@profane:~/perl% perl5.9.5 -MCarp -le 'f(@ARGV); sub f { my $x = shift(@ARGV); carp($x)}' a v
panic: attempt to copy freed scalar 8134d84 to 8164194 at /usr/local/lib/perl5/5.9.5/Carp/Heavy.pm line 104.
in 5.8.8:
david@profane:~/perl% perl -MCarp -le 'f(@ARGV); sub f { my $x = shift(@ARGV); carp($x)}' a v
Bizarre copy of ARRAY in sassign at /usr/local/lib/perl5/5.8.8/Carp/Heavy.pm line 45.
Someone posted this to Perlmonks:
http://www.perlmonks.org/index.pl?node_id=607210
David
[Please do not change anything below this line]
-----------------------------------------------------------------
---
Flags:
category=core
severity=medium
---
Site configuration information for perl 5.9.5:
Configured by david at Fri Mar 23 09:23:03 CET 2007.
Summary of my perl5 (revision 5 version 9 subversion 5 patch 30712) configuration:
Platform:
osname=freebsd, osvers=6.0-stable, archname=i386-freebsd
uname='freebsd profane.mongueurs.net 6.0-stable freebsd 6.0-stable #5: fri feb 24 11:12:56 cet 2006 root@profane.mongueurs.net:usrobjusrsrcsysprofane i386 '
config_args='-de -Dusemymalloc -Dusedevel -Duseithreads -Accflags=-DPERL_COPY_ON_WRITE -DPERL_DONT_CREATE_GVSV'
hint=previous, useposix=true, d_sigaction=define
useithreads=undef, usemultiplicity=undef
useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
use64bitint=undef, use64bitall=undef, uselongdouble=undef
usemymalloc=y, bincompat5005=undef
Compiler:
cc='cc', ccflags ='-DHAS_FPSETMASK -DHAS_FLOATINGPOINT_H -DPERL_DONT_CREATE_GVSV -fno-strict-aliasing -pipe -I/usr/local/include -DPERL_DONT_CREATE_GVSV -DPERL_COPY_ON_WRITE',
optimize='-O',
cppflags='-DHAS_FPSETMASK -DHAS_FLOATINGPOINT_H -DPERL_DONT_CREATE_GVSV -fno-strict-aliasing -pipe -I/usr/local/include'
ccversion='', gccversion='3.4.4 [FreeBSD] 20050518', 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 ='-Wl,-E -L/usr/local/lib'
libpth=/usr/lib /usr/local/lib
libs=-lgdbm -lm -lcrypt -lutil -lc
perllibs=-lm -lcrypt -lutil -lc
libc=, so=so, useshrplib=false, libperl=libperl.a
gnulibc_version=''
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags=' '
cccdlflags='-DPIC -fPIC', lddlflags='-shared -L/usr/local/lib'
Locally applied patches:
DEVEL
---
@INC for perl 5.9.5:
/usr/local/lib/perl5/5.9.5/i386-freebsd
/usr/local/lib/perl5/5.9.5
/usr/local/lib/perl5/site_perl/5.9.5/i386-freebsd
/usr/local/lib/perl5/site_perl/5.9.5
/usr/local/lib/perl5/site_perl
.
---
Environment for perl 5.9.5:
HOME=/home/david
LANG (unset)
LANGUAGE (unset)
LD_LIBRARY_PATH (unset)
LOGDIR (unset)
PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/games:/usr/local/sbin:/usr/local/bin:/usr/X11R6/bin:/home/david/bin:.
PERL_BADLANG (unset)
SHELL=/usr/local/bin/bash
-
[perl #42166] panic copying freed scalar in Carp::Heavy
by david @ mongueurs . net