-------------8<---------- Start Bug Report ------------8<----------
1. Problem Description:
apache crashes when accessing this modperl script:
package Apache::hello;
use strict;
use Apache::RequestRec ();
use Apache::RequestIO ();
use Apache::Const -compile => 'OK';
sub handler {
my $request = shift; # what does shift operate on @_?
$request->content_type('text/html');
$request->print(<<END);
<HTML>
<BODY>
<H1>Hello There</H1>
</BODY>
</HTML>
END
return Apache::OK;
}
2. Used Components and their Configuration:
*** using /usr/download/modperl/mod_perl-1.99_09/t/../lib/Apache/BuildConfig.pm
*** Makefile.PL options:
MP_AP_PREFIX => /usr/httpd20
MP_COMPAT_1X => 1
MP_GENERATE_XS => 1
MP_INST_APACHE2 => 1
MP_LIBNAME => mod_perl
MP_USE_DSO => 1
MP_USE_STATIC => 1
*** /usr/httpd20/bin/httpd -V
Server version: Apache/2.0.46
Server built: Jun 1 2003 19:52:02
Server's Module Magic Number: 20020903:3
Architecture: 32-bit
Server compiled with....
-D APACHE_MPM_DIR="server/mpm/prefork"
-D APR_HAS_SENDFILE
-D APR_HAS_MMAP
-D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
-D APR_USE_SYSVSEM_SERIALIZE
-D APR_USE_PTHREAD_SERIALIZE
-D SINGLE_LISTEN_UNSERIALIZED_ACCEPT
-D APR_HAS_OTHER_CHILD
-D AP_HAVE_RELIABLE_PIPED_LOGS
-D HTTPD_ROOT="/usr/httpd20"
-D SUEXEC_BIN="/usr/httpd20/bin/suexec"
-D DEFAULT_PIDLOG="logs/httpd.pid"
-D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
-D DEFAULT_LOCKFILE="logs/accept.lock"
-D DEFAULT_ERRORLOG="logs/error_log"
-D AP_TYPES_CONFIG_FILE="conf/mime.types"
-D SERVER_CONFIG_FILE="conf/httpd.conf"
*** /usr/bin/perl -V
Summary of my perl5 (revision 5.0 version 8 subversion 0) configuration:
Platform:
osname=linux, osvers=2.4.18-11smp, archname=i386-linux-thread-multi
uname='linux daffy.perf.redhat.com 2.4.18-11smp #1 smp thu aug 15 06:41:59 edt
2002 i686 i686 i386 gnulinux '
config_args='-des -Doptimize=-O2 -march=i386 -mcpu=i686 -Dmyhostname=localhost
[EMAIL PROTECTED] -Dcc=gcc -Dcf_by=Red Hat, Inc. -Dinstallprefix=/usr -Dprefix=/usr
-Darchname=i386-linux -Dvendorprefix=/usr -Dsiteprefix=/usr -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 -fno-strict-aliasing
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I/usr/include/gdbm',
optimize='-O2 -march=i386 -mcpu=i686',
cppflags='-D_REENTRANT -D_GNU_SOURCE -fno-strict-aliasing -I/usr/include/gdbm'
ccversion='', gccversion='3.2 20020822 (Red Hat Linux Rawhide 3.2-5)',
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-2.2.92.so, so=so, useshrplib=true, libperl=libperl.so
gnulibc_version='2.2.92'
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: MULTIPLICITY USE_ITHREADS USE_LARGE_FILES PERL_IMPLICIT_CONTEXT
Built under linux
Compiled at Sep 1 2002 23:56:49
%ENV:
PERL_LWP_USE_HTTP_10="1"
@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
.
3. This is the core dump trace: (if you get a core dump):
I was able to run 'httpd -X' from inside gbd and got a stack trace
with mod_perl compiled with MP_DEBUG=1:
0x402f458c in modperl_wbucket_write (my_perl=0x81af228, wb=0x81b3900,
buf=0xbffff438 "4", wlen=0x4063cb8f) at modperl_filter.c:181
181 *wlen = 0;
#0 0x402f458c in modperl_wbucket_write (my_perl=0x81af228, wb=0x81b3900,
buf=0xbffff438 "4", wlen=0x4063cb8f) at modperl_filter.c:181
#1 0x40640701 in mpxs_Apache__RequestRec_print ()
from
/usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi/auto/Apache/RequestIO/RequestIO.so
#2 0x4063e8c6 in XS_Apache__RequestRec_print ()
from
/usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi/auto/Apache/RequestIO/RequestIO.so
#3 0x4038e8c5 in Perl_pp_entersub ()
from /usr/lib/perl5/5.8.0/i386-linux-thread-multi/CORE/libperl.so
#4 0x40387059 in Perl_runops_standard ()
from /usr/lib/perl5/5.8.0/i386-linux-thread-multi/CORE/libperl.so
#5 0x4032f139 in S_call_body ()
from /usr/lib/perl5/5.8.0/i386-linux-thread-multi/CORE/libperl.so
#6 0x4032eeb6 in Perl_call_sv ()
from /usr/lib/perl5/5.8.0/i386-linux-thread-multi/CORE/libperl.so
#7 0x402effe7 in modperl_callback (my_perl=0x8154e10, handler=0x80fe158,
p=0x81a9210, r=0x81a9248, s=0x80b6178, args=0x813feb8)
at modperl_callback.c:53
#8 0x402f06a3 in modperl_callback_run_handlers (idx=6, type=4, r=0x81a9248,
c=0x0, s=0x80b6178, pconf=0x0, plog=0x0, ptemp=0x0)
at modperl_callback.c:187
#9 0x402f07bc in modperl_callback_per_dir (idx=6, r=0x81a9248)
at modperl_callback.c:218
#10 0x402ea0d0 in modperl_response_handler_run (r=0x81a9248, finish=0)
at mod_perl.c:777
#11 0x402ea315 in modperl_response_handler_cgi (r=0x81a9248) at mod_perl.c:842
#12 0x0807b67e in ap_run_handler (r=0x81a9248) at config.c:195
#13 0x0807bb96 in ap_invoke_handler (r=0x81a9248) at config.c:401
#14 0x0806baab in ap_process_request (r=0x81a9248) at http_request.c:288
#15 0x08067ce9 in ap_process_http_connection (c=0x816d498) at http_core.c:293
#16 0x08084476 in ap_run_process_connection (c=0x816d498) at connection.c:85
#17 0x0807a234 in child_main (child_num_arg=1080281999) at prefork.c:696
#18 0x0807a3de in make_child (s=0x80b6178, slot=0) at prefork.c:736
#19 0x0807a437 in startup_children (number_to_start=5) at prefork.c:808
#20 0x0807ab29 in ap_mpm_run (_pconf=0x8079b10, plog=0x80ebb50, s=0x80b6178)
at prefork.c:1024
#21 0x0807f842 in main (argc=2, argv=0xbffffa74) at main.c:660
#22 0x420158d4 in __libc_start_main () from /lib/i686/libc.so.6
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