Hi,
FYI ... hope none of you wastes time with this really nasty trap ...
Best regards,
Markus
-----Original Message-----
From: Markus Jansen
Sent: Tuesday, July 16, 2013 5:57 PM
To:
per...@perl.org
Cc: Markus Jansen
Subject: Localizing %SIG in Safe.pm 2.{35,36,37} crashes POE::Wheel::Run ...
This is a bug report for perl from
markus...@ericsson.com, generated with the help of perlbug 1.39 running under perl 5.18.0.
-----------------------------------------------------------------
[Please describe your issue here]
Dear Perl5 Porters,
localizing %SIG in Safe.pm 2.35 (on CPAN, 2.{35,36,37} in Perl core) may be a great step for security, but it unfortunatately spoils POE::Wheel::Run (basically POE and all other asynchronous frameworks dealing with external processes).
The symptom experienced is that your application might sooner or later crash (reliably when using POE::Component::Resolver upon exiting a Sidecar subprocess) with the following famous last words:
Signal SIGCHLD received, but no signal handler set.
Please consider a version (also on CPAN) of Safe.pm which has e.g. the localization of %SIG as a switchable feature.
Best regards,
Markus
[Please do not change anything below this line]
-----------------------------------------------------------------
---
Flags:
category=library
severity=critical
module=Safe
---
Site configuration information for perl 5.18.0:
Configured by ericsson at Fri Jul 12 19:17:48 CEST 2013.
Summary of my perl5 (revision 5 version 18 subversion 0) configuration:
Platform:
osname=linux, osvers=2.6.16.60-0.42.10-smp, archname=x86_64-linux-thread-multi
uname='linux sekix562 2.6.16.60-0.42.10-smp #1 smp tue apr 27 05:11:27 utc 2010 x86_64 x86_64 x86_64 gnulinux '
config_args='-d -e -O -D cc=gcc -D prefix=/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/prod -D usemultiplicity -U use5005threads -D usedl -D useshrplib -D libperl=libcmacperl.so -U usemymalloc -D cf_by=ericsson -D cf_email=
scm...@clearcase.ericsson.se -D perladmin=
scm...@clearcase.ericsson.se -D uselargefiles -D usethreads -D useithreads -D use64bitall -D ldcc=CC -D optimize=-O3 -D locincpth=/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/include /vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/apache/include -D loclibpth=/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/lib /vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/apache/lib -D lddlflags=-shared -lpthread -Wl,-L/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/prod/lib/5.18.0/x86_64-linux-thread-multi/CORE -Wl,-rpath,/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/prod/lib/5.18.0
/x86_64-linux-thread-multi/CORE -Wl,-L/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/lib -Wl,-rpath,/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/lib -Wl,-L/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/apache/lib -Wl,-rpath,/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/apache/lib -Wl,--enable-new-dtags -D ldflags=-lpthread -Wl,-L/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/prod/lib/5.18.0/x86_64-linux-thread-multi/CORE -Wl,-rpath,/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/prod/lib/5.18.0/x86_64-linux-thread-multi/CORE -Wl,-L/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/lib -Wl,-rpath,/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/lib -Wl,-L/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/apache/lib -Wl,-rpath,/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/
plib/apache/lib -Wl,--enable-new-dtags -D ccdlflags=-Bdynamic -Wl,-L/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/prod/lib/5.18.0/x86_64-linux-thread-multi/CORE -Wl,-rpath,/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/prod/lib/5.18.0/x86_64-linux-thread-multi/CORE -Wl,-L/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/lib -Wl,-rpath,/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/lib -Wl,-L/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/apache/lib -Wl,-rpath,/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/apache/lib -D ldlibpthname=LD_LIBRARY_PATH -D cccdlflags=-fPIC -D dlsrc=dl_dlopen.xs -D ccflags=-O2 -D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS -pthread -DPERL_IMPLICIT_CONTEXT -DPERL_USE_SAFE_PUTENV -m64 -pipe -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -fPIC -D so=so -D libswanted=nsl dl m crypt pthread c'
hint=recommended, useposix=true, d_sigaction=define
useithreads=define, usemultiplicity=define
useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
use64bitint=define, use64bitall=define, uselongdouble=undef
usemymalloc=n, bincompat5005=undef
Compiler:
cc='gcc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -O2 -D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS -pthread -DPERL_IMPLICIT_CONTEXT -DPERL_USE_SAFE_PUTENV -m64 -pipe -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -fPIC -fno-strict-aliasing -fstack-protector -I/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/include -I/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/apache/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
optimize='-O3',
cppflags='-D_REENTRANT -D_GNU_SOURCE -O2 -D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS -pthread -DPERL_IMPLICIT_CONTEXT -DPERL_USE_SAFE_PUTENV -m64 -pipe -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -fPIC -fno-strict-aliasing -fstack-protector -I/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/include -I/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/apache/include'
ccversion='', gccversion='4.1.2 20070115 (SUSE Linux)', 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='gcc', ldflags ='-lpthread -Wl,-L/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/prod/lib/5.18.0/x86_64-linux-thread-multi/CORE -Wl,-rpath,/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/prod/lib/5.18.0/x86_64-linux-thread-multi/CORE -Wl,-L/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/lib -Wl,-rpath,/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/lib -Wl,-L/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/apache/lib -Wl,-rpath,/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/apache/lib -Wl,--enable-new-dtags -fstack-protector'
libpth=/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/lib /vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/apache/lib /lib/../lib64 /usr/lib/../lib64 /lib /usr/lib /usr/local/lib /lib64 /usr/lib64 /usr/local/lib64
libs=-lnsl -ldl -lm -lcrypt -lpthread -lc
perllibs=-lnsl -ldl -lm -lcrypt -lpthread -lc
libc=/lib/
libc-2.4.so, so=so, useshrplib=true, libperl=libcmacperl.so
gnulibc_version='2.4'
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Bdynamic -Wl,-L/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/prod/lib/5.18.0/x86_64-linux-thread-multi/CORE -Wl,-rpath,/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/prod/lib/5.18.0/x86_64-linux-thread-multi/CORE -Wl,-L/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/lib -Wl,-rpath,/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/lib -Wl,-L/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/apache/lib -Wl,-rpath,/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/apache/lib'
cccdlflags='-fPIC', lddlflags='-shared -lpthread -Wl,-L/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/prod/lib/5.18.0/x86_64-linux-thread-multi/CORE -Wl,-rpath,/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/prod/lib/5.18.0/x86_64-linux-thread-multi/CORE -Wl,-L/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/lib -Wl,-rpath,/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/lib -Wl,-L/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/apache/lib -Wl,-rpath,/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/apache/lib -Wl,--enable-new-dtags -fstack-protector'
Locally applied patches:
---
@INC for perl 5.18.0:
/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/prod/lib/site_perl/5.18.0/x86_64-linux-thread-multi
/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/prod/lib/site_perl/5.18.0
/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/prod/lib/5.18.0/x86_64-linux-thread-multi
/vobs/cc/CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/prod/lib/5.18.0
.
---
Environment for perl 5.18.0:
HOME=/home/eedmja
LANG=en_US.UTF-8
LANGUAGE (unset)
LD_LIBRARY_PATH (unset)
LOGDIR (unset)
PATH=/tmp/_cc_CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/prod/bin:/tmp/_cc_CCA-perl01/perl5_Linux_x64__________sixtyfive_char_path/plib/bin:/bin:/usr/bin:/sbin:/usr/sbin:/opt/gnome/bin:/opt/kde3/bin:/usr/bin/X11:/home/eedmja/bin:/opt/rational/clearcase/bin
PERL_BADLANG (unset)
SHELL=/bin/tcsh