Hi Gerald -
My segfaults happen in production even with perl back to
5.8.3. I must be a configuration problem. Here is what
I' getting:
-------------8<---------- Start Bug Report ------------8<----------
1. Problem Description:
segfaults on embperl pages. Content is transfered to the
browser. Using Embperl cvs.
1a. Test page
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
<html> <head>
<title>Embperl test</title>
</head>
<body>
<h1>Embperl test</h1>
<p>2 + 2 = [+ 4 +].</p>
</body> </html>
1b. httpd.conf
[...]
LoadModule embperl_module \
/usr/perl/db-apache2.1/lib/site_perl/5.8.4/i686-linux-thread-multi/auto/Embperl/Embperl.so
[...]
<VirtualHost xxx.xxx.xxx.xxx:80>
ServerName xxxxx.xxxxx.com
DocumentRoot "/srv/www/htdocs/embtest"
<Directory "/srv/www/htdocs/embtest">
Embperl_AppName my_embtest_app
<FilesMatch "\.html$">
SetHandler perl-script
PerlHandler Embperl
Options ExecCGI
</FilesMatch>
</Directory>
</VirtualHost>
2. Used Components and their Configuration:
*** mod_perl version 1.9914
*** using lib/Apache/BuildConfig.pm
*** Makefile.PL options:
MP_APXS => /usr/apache2.1/sbin/apxs
MP_COMPAT_1X => 1
MP_DEBUG => 1
MP_GENERATE_XS => 1
MP_LIBNAME => mod_perl
MP_TRACE => 1
MP_USE_DSO => 1
MP_USE_STATIC => 1
*** /usr/apache2.1/sbin/httpd -V
Server version: Apache/2.1.0-dev
Server built: Apr 24 2004 23:26:12
Server's Module Magic Number: 20030821:3
Architecture: 32-bit
Server MPM: Prefork
threaded: no
forked: yes (variable process count)
Server compiled with....
-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/apache2.1"
-D SUEXEC_BIN="/usr/apache2.1/bin/suexec"
-D DEFAULT_PIDLOG="/var/run/httpd.pid"
-D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
-D DEFAULT_LOCKFILE="/var/run/accept.lock"
-D DEFAULT_ERRORLOG="logs/error_log"
-D AP_TYPES_CONFIG_FILE="/etc/httpd/mime.types"
-D SERVER_CONFIG_FILE="/etc/httpd/httpd.conf"
*** /usr/perl/db-apache2.1/bin/perl -V
Summary of my perl5 (revision 5 version 8 subversion 4) configuration:
Platform:
osname=linux, osvers=2.6.6-rc2, archname=i686-linux-thread-multi
uname='linux cathy.beaucox.com 2.6.6-rc2 #1 sat apr 24 13:43:16 hst 2004
i686 unknown unknown gnulinux '
config_args='-Dprefix=/usr/perl/db-apache2.1 -d -e -Dusethreads
-Duseshrplib -Doptimize='-g''
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='cc', 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',
optimize='-g',
cppflags='-D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS -DDEBUGGING
-fno-strict-aliasing -I/usr/local/include'
ccversion='', gccversion='3.3.3', 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='cc', ldflags =' -L/usr/local/lib'
libpth=/usr/local/lib /lib /usr/lib
libs=-lnsl -ldb -ldl -lm -lcrypt -lutil -lpthread -lc
perllibs=-lnsl -ldl -lm -lcrypt -lutil -lpthread -lc
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='-Wl,-E
-Wl,-rpath,/usr/perl/db-apache2.1/lib/5.8.4/i686-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
Built under linux
Compiled at Apr 24 2004 22:45:51
%ENV:
PERL_LWP_USE_HTTP_10="1"
@INC:
/usr/perl/db-apache2.1/lib/5.8.4/i686-linux-thread-multi
/usr/perl/db-apache2.1/lib/5.8.4
/usr/perl/db-apache2.1/lib/site_perl/5.8.4/i686-linux-thread-multi
/usr/perl/db-apache2.1/lib/site_perl/5.8.4
/usr/perl/db-apache2.1/lib/site_perl
.
*** Packages of interest status:
Apache::Request: 2.03-dev
CGI : 3.05
LWP : 5.79
mod_perl : 1.9914
3. This is the core dump trace: (if you get a core dump):
Starting program: /usr/apache2.1/sbin/httpd -X -DPRODUCTION -DAPACHE_2.1
[Thread debugging using libthread_db enabled]
[New Thread 16384 (LWP 5447)]
Detaching after fork from child process 5450.
Detaching after fork from child process 5451.
Detaching after fork from child process 5452.
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 16384 (LWP 5447)]
0x40575711 in S_hv_fetch_common (my_perl=0x84bc198, hv=0x88dade8, keysv=0x0,
key=0x4070dbc6 "EMBPERL_ALLOW", klen=13, flags=0, action=8, val=0x0,
hash=138139023)
at hv.c:631
631 if (HeHASH(entry) != hash) /* strings can't be
equal */
(gdb) bt
#0 0x40575711 in S_hv_fetch_common (my_perl=0x84bc198, hv=0x88dade8,
keysv=0x0,
key=0x4070dbc6 "EMBPERL_ALLOW", klen=13, flags=0, action=8, val=0x0,
hash=138139023)
at hv.c:631
#1 0x40574d53 in Perl_hv_fetch (my_perl=0x84bc198, hv=0x88dade8,
key=0x4070dbc6 "EMBPERL_ALLOW",
klen_i32=13, lval=0) at hv.c:323
#2 0x406a3644 in EMBPERL2_GetHashValueStr (my_perl=0x84bc198,
pHash=0x88dade8,
sKey=0x4070dbc6 "EMBPERL_ALLOW", sDefault=0x0) at eputil.c:760
#3 0x406b2bf4 in embperl_GetCGIReqConfig (pApp=0x8b98ad4, pPool=0x8b9aabc,
pConfig=0x8b9aafc,
bUseEnv=1 '\001', bUseRedirectEnv=0 '\0', bSetDefault=0 '\0') at
epcfg.h:36
#4 0x406d5ae7 in embperl_GetApacheReqConfig (pApp=0x8b98ad4, pPool=0x8b9aabc,
pDirCfg=0x8ab1f28,
pConfig=0x8b9aafc) at mod_embperl.c:879
#5 0x406ae9c7 in embperl_SetupRequest (my_perl=0x84bc198,
pApacheReqSV=0x8c52558,
pApp=0x8b98ad4, pApacheCfg=0x8ab1f28, pPerlParam=0x0, ppReq=0xbfffeea4) at
epinit.c:1394
#6 0x406b0e43 in embperl_InitRequest (my_perl=0x84bc198,
pApacheReqSV=0x8c52558, pPerlParam=0x0,
ppReq=0xbfffef0c) at epinit.c:2121
#7 0x406b1319 in embperl_InitRequestComponent (my_perl=0x84bc198,
pApacheReqSV=0x8c52558,
pPerlParam=0x0, ppReq=0xbfffef0c) at epinit.c:2189
#8 0x4069fe5d in embperl_ExecuteRequest (my_perl=0x84bc198,
pApacheReqSV=0x8c52558,
pPerlParam=0x0) at epmain.c:1417
#9 0x40693498 in XS_Embperl__Req_ExecuteRequest (my_perl=0x84bc198,
cv=0x8ab83a0)
at Embperl.xs:85
#10 0x405883ad in Perl_pp_entersub (my_perl=0x84bc198) at pp_hot.c:2854
#11 0x40561e72 in Perl_runops_debug (my_perl=0x84bc198) at dump.c:1442
#12 0x40500dd6 in S_call_body (my_perl=0x84bc198, myop=0xbffff180, is_eval=0)
at perl.c:2285
#13 0x405008fc in Perl_call_sv (my_perl=0x84bc198, sv=0x8ad0084, flags=4) at
perl.c:2203
#14 0x404b30c1 in modperl_callback (my_perl=0x84bc198, handler=0x8ab6148,
p=0x8ab06a0,
r=0x8ab06d8, s=0x81a1c70, args=0x8c5254c) at modperl_callback.c:99
#15 0x404b39b7 in modperl_callback_run_handlers (idx=6, type=4, r=0x8ab06d8,
c=0x0, s=0x81a1c70,
pconf=0x0, plog=0x0, ptemp=0x0, run_mode=MP_HOOK_RUN_FIRST) at
modperl_callback.c:262
#16 0x404b3c8f in modperl_callback_per_dir (idx=6, r=0x8ab06d8,
run_mode=MP_HOOK_RUN_FIRST)
at modperl_callback.c:350
#17 0x404abb81 in modperl_response_handler_run (r=0x8ab06d8, finish=0) at
mod_perl.c:865
---Type <return> to continue, or q <return> to quit---
#18 0x404abf22 in modperl_response_handler_cgi (r=0x8ab06d8) at mod_perl.c:960
#19 0x080a297f in ap_run_handler (r=0x8ab06d8) at config.c:151
#20 0x080a310d in ap_invoke_handler (r=0x8ab06d8) at config.c:363
#21 0x0808e7b3 in ap_process_request (r=0x8ab06d8) at http_request.c:246
#22 0x0808850a in ap_process_http_connection (c=0x8aa3db8) at http_core.c:253
#23 0x080b0504 in ap_run_process_connection (c=0x8aa3db8) at connection.c:42
#24 0x080b08fe in ap_process_connection (c=0x8aa3db8, csd=0x8aa3c20) at
connection.c:175
#25 0x080a0eeb in child_main (child_num_arg=0) at prefork.c:625
#26 0x080a0fce in make_child (s=0x8131478, slot=0) at prefork.c:665
#27 0x080a1599 in ap_mpm_run (_pconf=0x80f40f0, plog=0x812c1d0, s=0x8131478)
at prefork.c:941
#28 0x080a9229 in main (argc=4, argv=0xbffff644) at main.c:665
(gdb)
This report was generated by t/REPORT on Sun Apr 25 10:01:45 2004 GMT.
-------------8<---------- End Bug Report --------------8<----------
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