Phoenix.pm: another crasher, for everyones amusement
Scott Walters
scott at illogics.org
Tue Feb 3 00:23:37 CST 2004
----- Forwarded message from "kstar at verizon.net ion at alku.ion.yi.org (via RT)" <perlbug-followup at perl.org> -----
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Archive: <http://nntp.perl.org/group/perl.perl5.porters/88197>
Subject: [perl #25824] Segmentation fault with sub x { shift; @a = @b; eval { use } }
Ticket: perl #25824
To: "mailing list perl5-porters at perl.org perl5-porters at perl.org perl5-porters at perl.org bugs-bitbucket at netlabs.develooper.com perl5-porters at perl.org perl5-porters at perl.org" <rt-25824 at perl>
From: "kstar at verizon.net ion at alku.ion.yi.org (via RT)" <perlbug-followup at perl.org>
# New Ticket Created by ion at alku.ion.yi.org
# Please include the string: [perl #25824]
# in the subject line of all future correspondence about this issue.
# <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=25824 >
This is a bug report for perl from ion+perlbug at ion.yi.org,
generated with the help of perlbug 1.34 running under perl v5.8.3.
-----------------------------------------------------------------
$ perl -e 'sub x { shift; @a = @b; eval { use } }'
Segmentation fault
To reproduce the segfault the following needs to be done in a sub:
- @_ must be modified.
- A list or a hash must be assigned to a list or a hash.
- eval { use }; must be done finally. The parameters for use don't
seem to matter.
gdb backtrace:
#0 0x0809e156 in Perl_pad_free ()
#1 0x0808e179 in Perl_op_clear ()
#2 0x0808e0a8 in Perl_op_free ()
#3 0x0808e07b in Perl_op_free ()
#4 0x080967b3 in Perl_newATTRSUB ()
#5 0x0808c297 in Perl_yyparse ()
#6 0x08061c64 in perl_parse ()
#7 0x080616cf in perl_parse ()
#8 0x0805f3da in main ()
-----------------------------------------------------------------
---
Flags:
category=core
severity=low
---
Site configuration information for perl v5.8.3:
Configured by ion at Mon Jan 19 12:00:54 EET 2004.
Summary of my perl5 (revision 5.0 version 8 subversion 3) configuration:
Platform:
osname=linux, osvers=2.6.0-gentoo, archname=i586-linux
uname='linux alku 2.6.0-gentoo #2 smp sun dec 21 10:35:44 eet 2003 i686 celeron (mendocino) genuineintel gnulinux '
config_args='-des -Darchname=i586-linux -Dcccdlflags=-fPIC -Dccdlflags=-rdynamic -Dcc=gcc -Dprefix=/usr -Dvendorprefix=/usr -Dsiteprefix=/usr -Dlocincpth= -Doptimize=-O3 -march=pentium2 -mcpu=pentium2 -funroll-loops -pipe -Duselargefiles -Dd_dosuid -Dd_semctl_semun -Dscriptdir=/usr/bin -Dman3ext=3pm -Dcf_by=Gentoo -Ud_csh -Di_gdbm -Di_db -Di_ndbm'
hint=recommended, useposix=true, d_sigaction=define
usethreads=undef use5005threads=undef useithreads=undef usemultiplicity=undef
useperlio=define d_sfio=undef uselargefiles=define usesocks=undef
use64bitint=undef use64bitall=undef uselongdouble=undef
usemymalloc=n, bincompat5005=undef
Compiler:
cc='gcc', ccflags ='-fno-strict-aliasing -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
optimize='-O3 -march=pentium2 -mcpu=pentium2 -funroll-loops -pipe',
cppflags='-DPERL5 -fno-strict-aliasing'
ccversion='', gccversion='3.3.2 20031218 (Gentoo Linux 3.3.2-r5, propolice-3.3-7)', 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='gcc', ldflags =' -L/usr/local/lib'
libpth=/usr/local/lib /lib /usr/lib
libs=-lpthread -lnsl -lndbm -lgdbm -ldb -ldl -lm -lcrypt -lutil -lc
perllibs=-lpthread -lnsl -ldl -lm -lcrypt -lutil -lc
libc=/lib/libc-2.3.3.so, so=so, useshrplib=false, libperl=libperl.a
gnulibc_version='2.3.3'
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-rdynamic'
cccdlflags='-fPIC', lddlflags='-shared -L/usr/local/lib'
Locally applied patches:
---
@INC for perl v5.8.3:
/etc/perl
/usr/lib/perl5/site_perl/5.8.3/i586-linux
/usr/lib/perl5/site_perl/5.8.3
/usr/lib/perl5/site_perl/5.8.2/i586-linux
/usr/lib/perl5/site_perl/5.8.2
/usr/lib/perl5/site_perl
/usr/lib/perl5/vendor_perl/5.8.3/i586-linux
/usr/lib/perl5/vendor_perl/5.8.3
/usr/lib/perl5/vendor_perl/5.8.2/i586-linux
/usr/lib/perl5/vendor_perl/5.8.2
/usr/lib/perl5/vendor_perl
/usr/lib/perl5/5.8.3/i586-linux
/usr/lib/perl5/5.8.3
/usr/local/lib/site_perl
/usr/lib/perl5/site_perl/5.8.2/i586-linux
/usr/lib/perl5/site_perl/5.8.2
.
---
Environment for perl v5.8.3:
HOME=/home/ion
LANG=en_US.UTF-8
LANGUAGE (unset)
LC_CTYPE=fi_FI.UTF-8
LD_LIBRARY_PATH (unset)
LOGDIR (unset)
PATH=/home/ion/bin:/sbin:/usr/sbin:/usr/local/sbin:/opt/sbin:/bin:/usr/bin:/usr/local/bin:/opt/bin:/usr/i586-pc-linux-gnu/gcc-bin/3.3:/usr/X11R6/bin:/opt/blackdown-jdk-1.4.1/bin:/opt/blackdown-jdk-1.4.1/jre/bin:/usr/qt/3/bin:/usr/kde/3.1/bin:/usr/games/bin
PERL_BADLANG (unset)
SHELL=/bin/bash
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