$[ causes segfault with mod_perl 2.0.9, apache 2.4.10
Kostas Chatzikokolakis <[email protected]>
| Newsgroups | gmane.comp.apache.mod-perl |
|---|---|
| Message-ID | <CAM8S5cs5uRfknnbu0tj4ejGuwBwG-Srk3gXbWsBS+00HyXdRTA@mail.gmail.com> |
Hello,
simply adding <Perl> $[ </Perl>
to /etc/apache2/apache2.conf (or PerlPostConfigRequire a file
containing $[) causes apache to segfault (trace below).
Strangely this happens _only_ if mod_php is also loaded!
No sane person cares about $[, but it's not uncommon to
PerlPostConfigRequire some old module using it, and it took me a few
hours to figure out what's happening after upgrading to ubuntu 15.04.
Tested in a clean ubuntu 15.04 installation:
apache 2.4.10
perl 5.20.2
mod_perl 2.0.9~1624218
mod_php 5.6.4
Cheers,
Kostas
2. Used Components and their Configuration:
*** mod_perl version 2.000009
*** using /usr/lib/x86_64-linux-gnu/perl5/5.20/Apache2/BuildConfig.pm
*** Makefile.PL options:
MP_APR_CONFIG => /usr/bin/apr-config
MP_APR_LIB => aprext
MP_APXS => /usr/bin/apxs
MP_CCOPTS => -g -O2 -fstack-protector-strong -Wformat
-Werror=format-security -Wall
MP_COMPAT_1X => 1
MP_GENERATE_XS => 1
MP_LIBNAME => mod_perl
MP_TRACE => 0
MP_USE_DSO => 1
MP_USE_STATIC => 0
*** The httpd binary was not found
*** (apr|apu)-config linking info
(apr|apu)-config scripts were not found
*** /usr/bin/perl -V
Summary of my perl5 (revision 5 version 20 subversion 2) configuration:
Platform:
osname=linux, osvers=3.2.0-58-generic,
archname=x86_64-linux-gnu-thread-multi
uname='linux kissel 3.2.0-58-generic #88-ubuntu smp tue dec 3
17:37:58 utc 2013 x86_64 x86_64 x86_64 gnulinux '
config_args='-Dusethreads -Duselargefiles -Dccflags=-DDEBIAN
-D_FORTIFY_SOURCE=2 -g -O2 -fstack-protector-strong -Wformat
-Werror=format-security -Dldflags= -Wl,-Bsymbolic-functions
-Wl,-z,relro -Dlddlflags=-shared -Wl,-Bsymbolic-functions -Wl,-z,relro
-Dcccdlflags=-fPIC -Darchname=x86_64-linux-gnu -Dprefix=/usr
-Dprivlib=/usr/share/perl/5.20
-Darchlib=/usr/lib/x86_64-linux-gnu/perl/5.20 -Dvendorprefix=/usr
-Dvendorlib=/usr/share/perl5
-Dvendorarch=/usr/lib/x86_64-linux-gnu/perl5/5.20
-Dsiteprefix=/usr/local -Dsitelib=/usr/local/share/perl/5.20.2
-Dsitearch=/usr/local/lib/x86_64-linux-gnu/perl/5.20.2
-Dman1dir=/usr/share/man/man1 -Dman3dir=/usr/share/man/man3
-Dsiteman1dir=/usr/local/man/man1 -Dsiteman3dir=/usr/local/man/man3
-Duse64bitint -Dman1ext=1 -Dman3ext=3perl
-Dpager=/usr/bin/sensible-pager -Uafs -Ud_csh -Ud_ualarm -Uusesfio
-Uusenm -Ui_libutil -Uversiononly -DDEBUGGING=-g -Doptimize=-O2
-Duseshrplib -Dlibperl=libperl.so.5.20.2 -des'
hint=recommended, useposix=true, d_sigaction=define
useithreads=define, usemultiplicity=define
use64bitint=define, use64bitall=define, uselongdouble=undef
usemymalloc=n, bincompat5005=undef
Compiler:
cc='cc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -DDEBIAN -fwrapv
-fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE
-D_FILE_OFFSET_BITS=64',
optimize='-O2 -g',
cppflags='-D_REENTRANT -D_GNU_SOURCE -DDEBIAN -fwrapv
-fno-strict-aliasing -pipe -I/usr/local/include'
ccversion='', gccversion='4.9.2', 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='cc', ldflags =' -fstack-protector -L/usr/local/lib'
libpth=/usr/local/lib
/usr/lib/gcc/x86_64-linux-gnu/4.9/include-fixed
/usr/include/x86_64-linux-gnu /usr/lib /lib/x86_64-linux-gnu
/lib/../lib /usr/lib/x86_64-linux-gnu /usr/lib/../lib /lib
libs=-lgdbm -lgdbm_compat -ldb -ldl -lm -lpthread -lc -lcrypt
perllibs=-ldl -lm -lpthread -lc -lcrypt
libc=libc-2.19.so, so=so, useshrplib=true, libperl=libperl.so.5.20
gnulibc_version='2.19'
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
cccdlflags='-fPIC', lddlflags='-shared -L/usr/local/lib -fstack-protector'
Characteristics of this binary (from libperl):
Compile-time options: HAS_TIMES MULTIPLICITY PERLIO_LAYERS
PERL_DONT_CREATE_GVSV
PERL_HASH_FUNC_ONE_AT_A_TIME_HARD
PERL_IMPLICIT_CONTEXT PERL_MALLOC_WRAP
PERL_NEW_COPY_ON_WRITE PERL_PRESERVE_IVUV
USE_64_BIT_ALL USE_64_BIT_INT USE_ITHREADS
USE_LARGE_FILES USE_LOCALE USE_LOCALE_COLLATE
USE_LOCALE_CTYPE USE_LOCALE_NUMERIC USE_PERLIO
USE_PERL_ATOF USE_REENTRANT_API
Locally applied patches:
DEBPKG:debian/cpan_definstalldirs - Provide a sensible INSTALLDIRS
default for modules installed from CPAN.
DEBPKG:debian/db_file_ver - http://bugs.debian.org/340047 Remove
overly restrictive DB_File version check.
DEBPKG:debian/doc_info - Replace generic man(1) instructions with
Debian-specific information.
DEBPKG:debian/enc2xs_inc - http://bugs.debian.org/290336 Tweak
enc2xs to follow symlinks and ignore missing @INC directories.
DEBPKG:debian/errno_ver - http://bugs.debian.org/343351 Remove
Errno version check due to upgrade problems with long-running
processes.
DEBPKG:debian/libperl_embed_doc - http://bugs.debian.org/186778
Note that libperl-dev package is required for embedded linking
DEBPKG:fixes/respect_umask - Respect umask during installation
DEBPKG:debian/writable_site_dirs - Set umask approproately for
site install directories
DEBPKG:debian/extutils_set_libperl_path - EU:MM: set location of
libperl.a under /usr/lib
DEBPKG:debian/no_packlist_perllocal - Don't install .packlist or
perllocal.pod for perl or vendor
DEBPKG:debian/prefix_changes - Fiddle with *PREFIX and variables
written to the makefile
DEBPKG:debian/fakeroot - Postpone LD_LIBRARY_PATH evaluation to
the binary targets.
DEBPKG:debian/instmodsh_doc - Debian policy doesn't install
.packlist files for core or vendor.
DEBPKG:debian/ld_run_path - Remove standard libs from LD_RUN_PATH
as per Debian policy.
DEBPKG:debian/libnet_config_path - Set location of libnet.cfg to
/etc/perl/Net as /usr may not be writable.
DEBPKG:debian/mod_paths - Tweak @INC ordering for Debian
DEBPKG:debian/module_build_man_extensions -
http://bugs.debian.org/479460 Adjust Module::Build manual page
extensions for the Debian Perl policy
DEBPKG:debian/prune_libs - http://bugs.debian.org/128355 Prune the
list of libraries wanted to what we actually need.
DEBPKG:fixes/net_smtp_docs - [rt.cpan.org #36038]
http://bugs.debian.org/100195 Document the Net::SMTP 'Port' option
DEBPKG:debian/perlivp - http://bugs.debian.org/510895 Make perlivp
skip include directories in /usr/local
DEBPKG:debian/deprecate-with-apt - http://bugs.debian.org/747628
Point users to Debian packages of deprecated core modules
DEBPKG:debian/squelch-locale-warnings -
http://bugs.debian.org/508764 Squelch locale warnings in Debian
package maintainer scripts
DEBPKG:debian/skip-upstream-git-tests - Skip tests specific to the
upstream Git repository
DEBPKG:debian/patchlevel - http://bugs.debian.org/567489 List
packaged patches for 5.20.2-2 in patchlevel.h
DEBPKG:debian/skip-kfreebsd-crash - http://bugs.debian.org/628493
[perl #96272] Skip a crashing test case in t/op/threads.t on
GNU/kFreeBSD
DEBPKG:fixes/document_makemaker_ccflags -
http://bugs.debian.org/628522 [rt.cpan.org #68613] Document that
CCFLAGS should include $Config{ccflags}
DEBPKG:debian/find_html2text - http://bugs.debian.org/640479
Configure CPAN::Distribution with correct name of html2text
DEBPKG:debian/perl5db-x-terminal-emulator.patch -
http://bugs.debian.org/668490 Invoke x-terminal-emulator rather than
xterm in perl5db.pl
DEBPKG:debian/cpan-missing-site-dirs -
http://bugs.debian.org/688842 Fix CPAN::FirstTime defaults with
nonexisting site dirs if a parent is writable
DEBPKG:fixes/memoize_storable_nstore - [rt.cpan.org #77790]
http://bugs.debian.org/587650 Memoize::Storable: respect 'nstore'
option not respected
DEBPKG:debian/regen-skip - Skip a regeneration check in unrelated
git repositories
DEBPKG:fixes/regcomp-mips-optim - [perl #122817]
http://bugs.debian.org/754054 Downgrade the optimization of regcomp.c
on mips and mipsel due to a gcc-4.9 bug
DEBPKG:debian/makemaker-pasthru - http://bugs.debian.org/758471
Pass LD settings through to subdirectories
DEBPKG:fixes/perldoc-less-R - [rt.cpan.org #98636]
http://bugs.debian.org/758689 Tell the 'less' pager to allow terminal
escape sequences
DEBPKG:fixes/pod_man_reproducible_date -
http://bugs.debian.org/759405 Support POD_MAN_DATE in Pod::Man for the
left-hand footer
DEBPKG:fixes/io_uncompress_gunzip_inmemory -
http://bugs.debian.org/747363 [rt.cpan.org #95494] Fix gunzip to
in-memory file handle
DEBPKG:fixes/socket_test_recv_fix - http://bugs.debian.org/758718
[perl #122657] Compare recv return value to peername in socket test
DEBPKG:fixes/hurd_socket_recv_todo - http://bugs.debian.org/758718
[perl #122657] TODO checking the result of recv() on hurd
DEBPKG:fixes/regexp-performance - [0fa70a0]
http://bugs.debian.org/777556 [perl #123743] simpify and speed up
/.*.../ handling
Built under linux
Compiled at Mar 3 2015 11:44:27
%ENV:
PERL_LWP_USE_HTTP_10="1"
@INC:
/etc/perl
/usr/local/lib/x86_64-linux-gnu/perl/5.20.2
/usr/local/share/perl/5.20.2
/usr/lib/x86_64-linux-gnu/perl5/5.20
/usr/share/perl5
/usr/lib/x86_64-linux-gnu/perl/5.20
/usr/share/perl/5.20
/usr/local/lib/site_perl
.
3. This is the core dump trace: (if you get a core dump):
#0 0x00007f455212ce70 in ?? ()
#1 0x00007f4557301a04 in Perl_newBINOP () from
/tmp/apport_sandbox_l8WbDl/usr/lib/x86_64-linux-gnu/libperl.so.5.20
#2 0x00007f4557342cf1 in Perl_yyparse () from
/tmp/apport_sandbox_l8WbDl/usr/lib/x86_64-linux-gnu/libperl.so.5.20
#3 0x00007f45573c5342 in ?? () from
/tmp/apport_sandbox_l8WbDl/usr/lib/x86_64-linux-gnu/libperl.so.5.20
#4 0x00007f45573d0fa0 in Perl_pp_require () from
/tmp/apport_sandbox_l8WbDl/usr/lib/x86_64-linux-gnu/libperl.so.5.20
#5 0x00007f455738bbb6 in Perl_runops_standard () from
/tmp/apport_sandbox_l8WbDl/usr/lib/x86_64-linux-gnu/libperl.so.5.20
#6 0x00007f45573153a1 in Perl_eval_sv () from
/tmp/apport_sandbox_l8WbDl/usr/lib/x86_64-linux-gnu/libperl.so.5.20
#7 0x00007f455769fa04 in modperl_require_module () from
/tmp/apport_sandbox_l8WbDl/usr/lib/apache2/modules/mod_perl.so
#8 0x00007f45576963e7 in ?? () from
/tmp/apport_sandbox_l8WbDl/usr/lib/apache2/modules/mod_perl.so
#9 0x00007f45573c20a9 in Perl_leave_scope () from
/tmp/apport_sandbox_l8WbDl/usr/lib/x86_64-linux-gnu/libperl.so.5.20
#10 0x00007f455731b68a in perl_parse () from
/tmp/apport_sandbox_l8WbDl/usr/lib/x86_64-linux-gnu/libperl.so.5.20
#11 0x00007f4557696ab3 in modperl_startup () from
/tmp/apport_sandbox_l8WbDl/usr/lib/apache2/modules/mod_perl.so
#12 0x00007f4557696a43 in modperl_startup () from
/tmp/apport_sandbox_l8WbDl/usr/lib/apache2/modules/mod_perl.so
#13 0x00007f4557696e76 in modperl_init () from
/tmp/apport_sandbox_l8WbDl/usr/lib/apache2/modules/mod_perl.so
#14 0x00007f4557696feb in modperl_hook_init () from
/tmp/apport_sandbox_l8WbDl/usr/lib/apache2/modules/mod_perl.so
#15 0x00007f455769a6f6 in modperl_cmd_perldo () from
/tmp/apport_sandbox_l8WbDl/usr/lib/apache2/modules/mod_perl.so
#16 0x00007f455b2cdd5e in invoke_cmd (cmd=0x7f45578c1570,
parms=0x7fff96bf48d0, mconfig=0x7f455b20ac90, args=0x7f455b1d74d8
"$[\n") at config.c:879
#17 0x00007f455b2d045f in ap_walk_config_sub
(section_vector=<optimized out>, parms=<optimized out>,
current=<optimized out>) at config.c:1309
#18 ap_walk_config (current=0x7f455b1d74e0, parms=0x7fff96bf48d0,
section_vector=0x7f455b2334e8) at config.c:1342
#19 0x00007f455b2d176d in ap_process_config_tree (s=0x7f455c2ea940,
conftree=0x25, p=0x7f455b264028, ptemp=0x7f4557681c80 <PL_ppaddr>)
at config.c:2059
#20 0x00007f455b2ae143 in main (argc=2, argv=0x7fff96bf4b28) at main.c:739
This report was generated by -e on Thu May 21 18:07:21 2015 GMT.
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