> 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!
Is PHP acting like a Poltergeist? (Sorry, I couldn't resist.) > No sane person cares about $[, Its use is also discouraged according to the documentation: "As of release 5 of Perl, assignment to $[ is treated as a compiler directive, and cannot influence the behavior of any other file. (That's why you can only assign compile-time constants to it.) Its use is highly discouraged." Source: http://perldoc.perl.org/perlvar.html > 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. That's one good reason for not segfaulting. =) [End of reply.] > 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. > > -------------8<---------- End Bug Report --------------8<---------- Randolf Richardson - rand...@inter-corporate.com Inter-Corporate Computer & Network Services, Inc. Beautiful British Columbia, Canada http://www.inter-corporate.com/