Re: modperl 2.0: apache crashes when running modperl script
Stas Bekman [EMAIL PROTECTED] wrote: 'make install' after you have rebuilt mod_perl with MP_DEBUG=1? try to nuke /usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi/auto/Apache and 'make install' again. Actually I know why this happens and why you have the segfault since you have had: MP_INST_APACHE2 = 1 it must be installed into i686-linux-thread-multi/Apache2/auto/Apache/RequestIO/RequestIO.so You probably had an older mod_perl install, and now it loads the wrong library. I see that you didn't load Apache2 and that explains the problem. Add to your startup 'use Apache2' as explained here: http://perl.apache.org/docs/2.0/user/intro/start_fast.html#Configuration I removed RequestIO.so inside /usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi/auto/Apache and did 'make install'. Then added 'use Apache2' in the startup file and there are no segfaults anymore. Thanks, Natarajan Murugaiyan(Ravi) __ McAfee VirusScan Online from the Netscape Network. Comprehensive protection for your entire computer. Get your free trial today! http://channels.netscape.com/ns/computing/mcafee/index.jsp?promo=393397 Get AOL Instant Messenger 5.1 free of charge. Download Now! http://aim.aol.com/aimnew/Aim/register.adp?promo=380455
Re: modperl 2.0: apache crashes when running modperl script
-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
H1Hello 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=0xb438 4, wlen=0x4063cb8f) at modperl_filter.c:181
181 *wlen = 0;
#0 0x402f458c in modperl_wbucket_write (my_perl=0x81af228, wb=0x81b3900,
buf=0xb438 4, wlen=0x4063cb8f) at modperl_filter.c:181
#1 0x40640701 in mpxs_Apache__RequestRec_print ()
from
Re: modperl 2.0: apache crashes when running modperl script
[EMAIL PROTECTED] wrote: [...] 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=0xb438 4, wlen=0x4063cb8f) at modperl_filter.c:181 181 *wlen = 0; #0 0x402f458c in modperl_wbucket_write (my_perl=0x81af228, wb=0x81b3900, buf=0xb438 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 why RequestIO.so doesn't include the debug info? Are you sure you have run 'make install' after you have rebuilt mod_perl with MP_DEBUG=1? try to nuke /usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi/auto/Apache and 'make install' again. Actually I know why this happens and why you have the segfault since you have had: MP_INST_APACHE2 = 1 it must be installed into i686-linux-thread-multi/Apache2/auto/Apache/RequestIO/RequestIO.so You probably had an older mod_perl install, and now it loads the wrong library. I see that you didn't load Apache2 and that explains the problem. Add to your startup 'use Apache2' as explained here: http://perl.apache.org/docs/2.0/user/intro/start_fast.html#Configuration __ Stas BekmanJAm_pH -- Just Another mod_perl Hacker http://stason.org/ mod_perl Guide --- http://perl.apache.org mailto:[EMAIL PROTECTED] http://use.perl.org http://apacheweek.com http://modperlbook.org http://apache.org http://ticketmaster.com
Re: modperl 2.0: apache crashes when running modperl script
-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
H1Hello 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
__
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Re: modperl 2.0: apache crashes when running modperl script
[EMAIL PROTECTED] wrote:
-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
H1Hello 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
that's only a beginning of the report. Where is the rest? Why is it so hard to
copy-n-paste the report? OK, I'll do that for you.
3. This is the core dump trace: (if you get a core dump):
Apache crashes but does not dump core. I set unlimit to unlimited,
made sure the filesystem from which 'httpd -X' is run has enough free space.
Still no core. Could not find Bad::Segv module either in modperl or in
CPAN and therefore could not try to dump using a script like core_dump.pl
mentioned in 'Debugging mod_perl C Internals' document.
Yeah, I need to update the Bad::Segv part. It's called Debug::DumpCore.
I was able to run 'httpd -X' from inside gbd and got a stack trace:
(gdb) bt
#0 0x402f1f47 in modperl_wbucket_write ()
from /usr/httpd20/modules/mod_perl.so
#1 0x40638701 in mpxs_Apache__RequestRec_print ()
from
/usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi/auto/Apache/RequestIO/RequestIO.so
#2 0x406368c6 in XS_Apache__RequestRec_print ()
from
/usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi/auto/Apache/RequestIO/RequestIO.so
#3 0x403868c5 in Perl_pp_entersub ()
from /usr/lib/perl5/5.8.0/i386-linux-thread-multi/CORE/libperl.so
#4 0x4037f059 in Perl_runops_standard ()
from /usr/lib/perl5/5.8.0/i386-linux-thread-multi/CORE/libperl.so
#5 0x40327139 in S_call_body ()
from /usr/lib/perl5/5.8.0/i386-linux-thread-multi/CORE/libperl.so
#6 0x40326eb6 in Perl_call_sv ()
from /usr/lib/perl5/5.8.0/i386-linux-thread-multi/CORE/libperl.so
#7 0x402ed4e2 in modperl_callback () from /usr/httpd20/modules/mod_perl.so
#8 0x402ed9e4 in modperl_callback_run_handlers ()
from /usr/httpd20/modules/mod_perl.so
#9 0x402edc25 in modperl_callback_per_dir ()
from /usr/httpd20/modules/mod_perl.so
#10 0x402e9105 in modperl_response_handler_run ()
from /usr/httpd20/modules/mod_perl.so
#11 0x402e9325 in modperl_response_handler_cgi ()
from /usr/httpd20/modules/mod_perl.so
#12 0x0807b67e in ap_run_handler (r=0x81a9268) at config.c:195
#13 0x0807bb96 in ap_invoke_handler (r=0x81a9268) at config.c:401
#14 0x0806baab in ap_process_request (r=0x81a9268) at http_request.c:288
#15 0x08067ce9 in ap_process_http_connection (c=0x816d458) at http_core.c:293
#16 0x08084476 in ap_run_process_connection (c=0x816d458) at connection.c:85
#17 0x0807a234 in child_main (child_num_arg=1080249231) 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=0xba74) at main.c:660
#22 0x420158d4 in __libc_start_main () from /lib/i686/libc.so.6
The problem with this trace is that it doesn't show the arguments. You need to
build mod_perl with MP_DEBUG=1 and generate it again.
__
Stas BekmanJAm_pH -- Just Another mod_perl Hacker
http://stason.org/ mod_perl Guide --- http://perl.apache.org
mailto:[EMAIL PROTECTED] http://use.perl.org http://apacheweek.com
http://modperlbook.org http://apache.org http://ticketmaster.com
modperl 2.0: apache crashes when running modperl script
I get an Internal Server Error in the browser when trying
to access the URI /hello.
Apache and modperl version:
Sun Jun 01 18:51:42 2003] [notice] Apache/2.0.46 (Unix) mod_perl/1.99_09 Perl/v5.8.0
mod_ssl/2.0.46 OpenSSL/0.9.6b configured -- resuming normal operations
Relvant contents of perl.conf file:
PerlRequire /home/ravi/www/apache/modperl/startup.pl
Location /hello
SetHandler perl-script
PerlHandler Apache::hello
/Location
Contents of /home/ravi/www/apache/modperl/startup.pl:
use lib /home2/apache/www/html/modperl2/book/lincoln;
1;
Script hello.pm located at /home2/apache/www/html/modperl2/book/lincoln/Apache/hello.pm
Contents of hello.pm:
package Apache::hello;
use strict;
use Apache::RequestRec ();
use Apache::RequestIO ();
sub handler {
my $request = shift; # what does shift operate on @_?
$request-content_type('text/html');
$request-print(END); # what does the ) do in print?
HTML
BODY
H1Hello There/H1
/BODY
/HTML
END
return Apache::OK;
}
1;
Relevant httpd error_log:
[Sun Jun 01 19:04:46 2003] [notice] child pid 2861 exit signal Segmentation fault (11)
Relevant http access_log:
127.0.0.1 - - [01/Jun/2003:19:04:46 -0400] GET /hello HTTP/1.1 500 670
I am not sure if the problem is with apache or modperl.
I could not find a core file under httpd ServerRoot.
Natarajan Murugaiyan(Ravi)
__
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Re: modperl 2.0: apache crashes when running modperl script
[EMAIL PROTECTED] wrote:
I get an Internal Server Error in the browser when trying
to access the URI /hello.
Apache and modperl version:
Sun Jun 01 18:51:42 2003] [notice] Apache/2.0.46 (Unix) mod_perl/1.99_09 Perl/v5.8.0
mod_ssl/2.0.46 OpenSSL/0.9.6b configured -- resuming normal operations
When submitting bug reports, please follow these guidelines:
http://perl.apache.org/docs/2.0/user/help/help.html#Reporting_Problems
[...]
package Apache::hello;
use strict;
use Apache::RequestRec ();
use Apache::RequestIO ();
sub handler {
my $request = shift; # what does shift operate on @_?
$request-content_type('text/html');
$request-print(END); # what does the ) do in print?
HTML
BODY
H1Hello There/H1
/BODY
/HTML
END
return Apache::OK;
}
Where did you take this example from? you should return a constant Apache::OK,
not a string Apache::OK. You need to import this constant before you can use
it. Here is a skeleton:
use Apache::Const -compile = 'OK';
sub handler {
...
return Apache::OK;
}
1;
Relevant httpd error_log:
[Sun Jun 01 19:04:46 2003] [notice] child pid 2861 exit signal Segmentation fault (11)
Relevant http access_log:
127.0.0.1 - - [01/Jun/2003:19:04:46 -0400] GET /hello HTTP/1.1 500 670
I am not sure if the problem is with apache or modperl.
I could not find a core file under httpd ServerRoot.
Take a look at:
http://perl.apache.org/docs/2.0/devel/debug/c.html#Getting_the_core_File_Dumped
__
Stas BekmanJAm_pH -- Just Another mod_perl Hacker
http://stason.org/ mod_perl Guide --- http://perl.apache.org
mailto:[EMAIL PROTECTED] http://use.perl.org http://apacheweek.com
http://modperlbook.org http://apache.org http://ticketmaster.com
Re: modperl 2.0: apache crashes when running modperl script
Hi guys, On Mon, 2 Jun 2003, Stas Bekman wrote: Sun Jun 01 18:51:42 2003] [notice] Apache/2.0.46 (Unix) mod_perl/1.99_09 Perl/v5.8.0 mod_ssl/2.0.46 OpenSSL/0.9.6b http://www.openssl.org/news/secadv_20030219.txt 73, Ged.
Re: modperl 2.0: apache crashes when running modperl script
__ McAfee VirusScan Online from the Netscape Network. Comprehensive protection for your entire computer. Get your free trial today! http://channels.netscape.com/ns/computing/mcafee/index.jsp?promo=393397 Get AOL Instant Messenger 5.1 free of charge. Download Now! http://aim.aol.com/aimnew/Aim/register.adp?promo=380455 bug.rpt Description: bug.rpt
