| Subject: | Problem with perl 5.8.0 on RHEL3 |
Using Sys::SigAction 0.06.
It seems that the "safe" signal handling in 5.8.0 at least on RedHat is
completely broken when used with Sys::SigAction.
The make test fail and also the simplest program using the
set_sig_handler fail.
This is the make test output:
PERL_DL_NONLAZY=1 /usr/bin/perl "-MExtUtils::Command::MM" "-e"
"test_harness(0, 'blib/lib', 'blib/arch')" t/*.t
t/attrs......skipped
all skipped: requires perl 5.8.2 or later
t/name.......ok
t/nested.....ok 1/5Can't locate auto/POSIX/SigAction/safe.al in @INC
(@INC contains: /root/.cpan/build/Sys-SigAction-0.06/blib/lib
/root/.cpan/build/Sys-SigAction-0.06/blib/arch
/usr/lib/perl5/5.8.0/i386-linux-thread-multi
/usr/lib/perl5/5.8.0/i386-linux-thread-multi /usr/lib/perl5/5.8.0
/usr/lib/perl5/site_perl/5.8.0/i386-linux-thread-multi
/usr/lib/perl5/site_perl/5.8.0/i386-linux-thread-multi
/usr/lib/perl5/site_perl/5.8.0
/usr/lib/perl5/site_perl/5.8.0/i386-linux-thread-multi
/usr/lib/perl5/site_perl/5.8.0 /usr/lib/perl5/site_perl
/usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi
/usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi
/usr/lib/perl5/vendor_perl/5.8.0
/usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi
/usr/lib/perl5/vendor_perl/5.8.0 /usr/lib/perl5/vendor_perl
/usr/lib/perl5/5.8.0/i386-linux-thread-multi
/usr/lib/perl5/5.8.0/i386-linux-thread-multi /usr/lib/perl5/5.8.0 .
/usr/lib/perl5/5.8.0/i386-linux-thread-multi /usr/lib/perl5/5.8.0
/usr/lib/perl5/site_perl/5.8.0/i386-linux-thread-multi
/usr/lib/perl5/site_perl/5.8.0 /usr/lib/perl5/site_perl
/usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi
/usr/lib/perl5/vendor_perl/5.8.0 /usr/lib/perl5/vendor_perl
/usr/lib/perl5/5.8.0/i386-linux-thread-multi /usr/lib/perl5/5.8.0 .) at
/root/.cpan/build/Sys-SigAction-0.06/blib/lib/Sys/SigAction.pm line 84
# Looks like you planned 5 tests but only ran 1.
# Looks like your test died just after 1.
t/nested.....dubious
Test returned status 255 (wstat 65280, 0xff00)
DIED. FAILED tests 2-5
Failed 4/5 tests, 20.00% okay
t/number.....ok
t/timeout....ok 1/7# Failed test (t/timeout.t at line 32)
t/timeout....ok 5/7# Failed test (t/timeout.t at line 51)
t/timeout....NOK 6# Failed test (t/timeout.t at line 52)
t/timeout....NOK 7# Looks like you failed 3 tests of 7.
t/timeout....dubious
Test returned status 3 (wstat 768, 0x300)
DIED. FAILED tests 2, 6-7
Failed 3/7 tests, 57.14% okay
Failed Test Stat Wstat Total Fail Failed List of Failed
-------------------------------------------------------------------------------
t/nested.t 255 65280 5 4 80.00% 2-5
t/timeout.t 3 768 7 3 42.86% 2 6-7
1 test skipped.
Failed 2/5 test scripts, 60.00% okay. 7/18 subtests failed, 61.11% okay.
make: *** [test_dynamic] Error 2
I did some test and it's impossible to use the SigAction on it. This
simple test will fail:
#!/usr/bin/perl
use strict;
use warnings;
use Sys::SigAction qw(set_sig_handler);
use POSIX ':signal_h' ;
my $errmsg="";
my $h=set_sig_handler( 'ALRM' ,sub { $errmsg="Timeout!"; });
with this error:
Can't locate auto/POSIX/SigAction/safe.al in @INC (@INC contains:
/usr/lib/perl5/5.8.0/i386-linux-thread-multi /usr/lib/perl5/5.8.0
/usr/lib/perl5/site_perl/5.8.0/i386-linux-thread-multi
/usr/lib/perl5/site_perl/5.8.0 /usr/lib/perl5/site_perl
/usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi
/usr/lib/perl5/vendor_perl/5.8.0 /usr/lib/perl5/vendor_perl
/usr/lib/perl5/5.8.0/i386-linux-thread-multi /usr/lib/perl5/5.8.0 .) at
/usr/lib/perl5/site_perl/5.8.0/Sys/SigAction.pm line 84
SigAction.pm line 84 is:
$act->safe($attrs->{safe});
It try to load auto/POSIX/SigAction/safe.al but at least on my RHEL
machines that file don't exist.
[root@ITROMLX101 root]# ls /usr/lib/perl5/5.8.0/auto/POSIX/SigAction/
flags.al handler.al mask.al
Only 3 file exists here.
for now I changed the line to
$act->safe($attrs->{safe}) if ($attrs->{safe});
and it's working (at least if I don't define "safe").
[root@ITROMLX101 root]# uname -a
Linux ITROMLX101 2.4.21-40.ELsmp #1 SMP Thu Feb 2 22:22:39 EST 2006 i686
i686 i386 GNU/Linux
[root@ITROMLX101 root]# cat /etc/redhat-release
Red Hat Enterprise Linux ES release 3 (Taroon Update 7)
[root@ITROMLX101 root]# perl -V
Summary of my perl5 (revision 5.0 version 8 subversion 0) configuration:
Platform:
osname=linux, osvers=2.4.21-25.elsmp, archname=i386-linux-thread-multi
uname='linux porky.build.redhat.com 2.4.21-25.elsmp #1 smp fri nov
12 21:34:51 est 2004 i686 i686 i386 gnulinux '
config_args='-des -Doptimize=-O2 -g -pipe -march=i386 -mcpu=i686
-Dmyhostname=localhost -Dperladmin=root@localhost -Dcc=gcc -Dcf_by=Red
Hat, Inc. -Dinstallprefix=/usr -Dprefix=/usr -Darchname=i386-linux
-Dvendorprefix=/usr -Dsiteprefix=/usr
-Dotherlibdirs=/usr/lib/perl5/5.8.0 -Duseshrplib -Dusethreads
-Duseithreads -Duselargefiles -Dd_dosuid -Dd_semctl_semun -Di_db
-Ui_ndbm -Di_gdbm -Di_shadow -Di_syslog -Dman3ext=3pm -Duseperlio
-Dinstallusrbinperl -Ubincompat5005 -Uversiononly -Dpager=/usr/bin/less
-isr'
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 -I/usr/local/include
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I/usr/include/gdbm',
optimize='-O2 -g -pipe -march=i386 -mcpu=i686',
cppflags='-D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS -DDEBUGGING
-fno-strict-aliasing -I/usr/local/include -I/usr/include/gdbm'
ccversion='', gccversion='3.2.3 20030502 (Red Hat Linux 3.2.3-54)',
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 -lpthread -lc -lcrypt -lutil
perllibs=-lnsl -ldl -lm -lpthread -lc -lcrypt -lutil
libc=/lib/libc-2.3.2.so, so=so, useshrplib=true, libperl=libperl.so
gnulibc_version='2.3.2'
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-rdynamic
-Wl,-rpath,/usr/lib/perl5/5.8.0/i386-linux-thread-multi/CORE'
cccdlflags='-fPIC', lddlflags='-shared -L/usr/local/lib'
Characteristics of this binary (from libperl):
Compile-time options: DEBUGGING MULTIPLICITY USE_ITHREADS
USE_LARGE_FILES PERL_IMPLICIT_CONTEXT
Locally applied patches:
MAINT18379
Built under linux
Compiled at Dec 13 2005 16:27:05
@INC:
/usr/lib/perl5/5.8.0/i386-linux-thread-multi
/usr/lib/perl5/5.8.0
/usr/lib/perl5/site_perl/5.8.0/i386-linux-thread-multi
/usr/lib/perl5/site_perl/5.8.0
/usr/lib/perl5/site_perl
/usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi
/usr/lib/perl5/vendor_perl/5.8.0
/usr/lib/perl5/vendor_perl
/usr/lib/perl5/5.8.0/i386-linux-thread-multi
/usr/lib/perl5/5.8.0
.