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[perl #36653] POSIX::SigSet double free with threads

From:
John Gardiner Myers
Date:
July 26, 2005 00:53
Subject:
[perl #36653] POSIX::SigSet double free with threads
Message ID:
rt-3.0.11-36653-118277.19.6020649407809@perl.org
# New Ticket Created by  John Gardiner Myers 
# Please include the string:  [perl #36653]
# in the subject line of all future correspondence about this issue. 
# <URL: https://rt.perl.org/rt3/Ticket/Display.html?id=36653 >


This is a bug report for perl from jgmyers@proofpoint.com,
generated with the help of perlbug 1.35 running under perl v5.8.7.


-----------------------------------------------------------------
[Please enter your report here]

Running the following script causes perl to free a block of memory twice.

#!/usr/bin/perl
use threads;
use POSIX ();
my $sigset = POSIX::SigSet->new();
threads->new(sub {})->join;
1;



[Please do not change anything below this line]
-----------------------------------------------------------------
---
Flags:
    category=library
    severity=medium
---
Site configuration information for perl v5.8.7:

Configured by jgmyers at Mon Jul 25 16:01:57 PDT 2005.

Summary of my perl5 (revision 5 version 8 subversion 7) configuration:
  Platform:
    osname=linux, osvers=2.4.21-32.0.1.elsmp, 
archname=i686-linux-thread-multi
    uname='linux pong.us.proofpoint.com 2.4.21-32.0.1.elsmp #1 smp tue 
may 17 17:52:23 edt 2005 i686 i686 i386 gnulinux '
    config_args=''
    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='gcc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS 
-DDEBUGGING -fno-strict-aliasing -pipe -I/usr/local/include 
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I/usr/include/gdbm',
    optimize='-O2 -g',
    cppflags='-D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS -DDEBUGGING 
-fno-strict-aliasing -pipe -I/usr/local/include -I/usr/include/gdbm'
    ccversion='', gccversion='3.3.3', 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='gcc', 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-2.3.2.so, so=so, useshrplib=false, libperl=libperl.a
    gnulibc_version='2.3.2'
  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 v5.8.7:
    /u/jgmyers/perl/lib/5.8.7/i686-linux-thread-multi
    /u/jgmyers/perl/lib/5.8.7
    /u/jgmyers/perl/lib/site_perl/5.8.7/i686-linux-thread-multi
    /u/jgmyers/perl/lib/site_perl/5.8.7
    /u/jgmyers/perl/lib/site_perl/5.8.6/i686-linux-thread-multi
    /u/jgmyers/perl/lib/site_perl/5.8.6
    /u/jgmyers/perl/lib/site_perl/5.8.5/i686-linux-thread-multi
    /u/jgmyers/perl/lib/site_perl/5.8.5
    /u/jgmyers/perl/lib/site_perl/5.8.3/i686-linux-thread-multi
    /u/jgmyers/perl/lib/site_perl/5.8.3
    /u/jgmyers/perl/lib/site_perl
    .

---
Environment for perl v5.8.7:
    HOME=/u/jgmyers
    LANG=en_US
    LANGUAGE (unset)
    LD_LIBRARY_PATH=.libs:../stdapi/.libs:/tools/x/gcc-3.3.3/lib
    LOGDIR (unset)
    
PATH=/home/jgmyers/libtool/bin:/tools/x/bin:/usr/kerberos/bin:/usr/local/bin:/bin:/usr/bin:/usr/X11R6/bin:/u/jgmyers/bin
    PERL_BADLANG (unset)
    SHELL=/bin/bash




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