Ircha, Andrew wrote:
> I'm attempting to run httpd with mod_perl, but the httpd refuses to
> start:
>
> Starting httpd: httpd: Syntax error on line 209 of
> /etc/httpd/conf/httpd.conf: Syntax error on line 10 of
> /etc/httpd/conf.d/perl.conf: Cannot load /etc/httpd/modules/mod_perl.so
> into server: /etc/httpd/modules/mod_perl.so: undefined symbol:
> modperl_io_perlio_restore_stdout
>
> There's a hint on this mailing list that mod_perl 2 and perl 5.10.0
> don't work together, but I'd like to discuss this before going back to
> 5.8.8, as I don't know how to downgrade perl with yum.
>
I'm not expert in regards to this matter, however I run mod_perl2 and
Perl 5.10 just fine. So I'd be looking elsewhere for a solution...

--
_ispy++ >> ispyhumanfly@gmail.com :: use Perl;

ispyhumanfly wrote:
> Ircha, Andrew wrote:
>> I'm attempting to run httpd with mod_perl, but the httpd refuses to
>> start:
>>
>> Starting httpd: httpd: Syntax error on line 209 of
>> /etc/httpd/conf/httpd.conf: Syntax error on line 10 of
>> /etc/httpd/conf.d/perl.conf: Cannot load /etc/httpd/modules/mod_perl.so
>> into server: /etc/httpd/modules/mod_perl.so: undefined symbol:
>> modperl_io_perlio_restore_stdout

My gut says that you have some of the original FC8 libraries hanging
around - if you are running 5.10.0 then your fedora install must have
upgraded at some point. Those undefined symbol errors usually indicate
version mismatches of the underlying libraries.

For what it is worth, I would 'rpm -e mod_perl', then try building it
from source. Just download 2.0.4, untar it, cd into the directory, and
run 'perl Makefile.PL && make && make test && sudo make install', apxs
should be in your PATH with the standard fedora setup.

>> There's a hint on this mailing list that mod_perl 2 and perl 5.10.0
>> don't work together, but I'd like to discuss this before going back to
>> 5.8.8, as I don't know how to downgrade perl with yum.
>>
> I'm not expert in regards to this matter, however I run mod_perl2 and
> Perl 5.10 just fine. So I'd be looking elsewhere for a solution...

Thanks for the suggestion. Errant symbols implied a build on the server might be an idea.

Sad to say I tried downloading the sources and running 'perl Makefile.PL' etc before posting my message. Yes, I navigated to /etc/httpd/modules to look at mod_perl.so to check the file modification time.

I downloaded the .gz.tar archive from the mod_perl website.

Thanks again, but no dice.

Actually there's a funny story about this. Makefile.PL didn't work because my perl 5.10 installation didn't have the necessary make stuff. I couldn't get the necessary stuff because CPAN.pm wasn't installed. I figured that perl wasn't correctly installed. So, I yum remove perl. Ouch!! This uninstalled about 300 packages totalling some 200+ MBytes. I then spend most of the remainder of the evening re-installing and ftp'ing the missing guts of my system. (This shows just how naive I am).

-----Original Message-----
From: Fred Moyer [mailto:fred@redhotpenguin.com]
Sent: Wed 10/8/2008 6:02 PM
To: Ircha, Andrew
Cc: modperl@perl.apache.org
Subject: Re: Cannot start Apache with mod_perl

ispyhumanfly wrote:
> Ircha, Andrew wrote:
>> I'm attempting to run httpd with mod_perl, but the httpd refuses to
>> start:
>>
>> Starting httpd: httpd: Syntax error on line 209 of
>> /etc/httpd/conf/httpd.conf: Syntax error on line 10 of
>> /etc/httpd/conf.d/perl.conf: Cannot load /etc/httpd/modules/mod_perl.so
>> into server: /etc/httpd/modules/mod_perl.so: undefined symbol:
>> modperl_io_perlio_restore_stdout

My gut says that you have some of the original FC8 libraries hanging
around - if you are running 5.10.0 then your fedora install must have
upgraded at some point. Those undefined symbol errors usually indicate
version mismatches of the underlying libraries.

For what it is worth, I would 'rpm -e mod_perl', then try building it
from source. Just download 2.0.4, untar it, cd into the directory, and
run 'perl Makefile.PL && make && make test && sudo make install', apxs
should be in your PATH with the standard fedora setup.

>> There's a hint on this mailing list that mod_perl 2 and perl 5.10.0
>> don't work together, but I'd like to discuss this before going back to
>> 5.8.8, as I don't know how to downgrade perl with yum.
>>
> I'm not expert in regards to this matter, however I run mod_perl2 and
> Perl 5.10 just fine. So I'd be looking elsewhere for a solution...

Coming back to this, I used yum to update from mod_perl 2.0.4-6 to
2.0.4-7 and I was able to restart httpd (Apache). Haven't done any more
testing, but this is an encouraging start.


________________________________

From: Ircha, Andrew
Sent: 09 October 2008 00:26
Subject: RE: Cannot start Apache with mod_perl



Thanks for the suggestion. Errant symbols implied a build on the server
might be an idea.

Sad to say I tried downloading the sources and running 'perl
Makefile.PL' etc before posting my message. Yes, I navigated to
/etc/httpd/modules to look at mod_perl.so to check the file modification
time.

I downloaded the .gz.tar archive from the mod_perl website.

Thanks again, but no dice.

Actually there's a funny story about this. Makefile.PL didn't work
because my perl 5.10 installation didn't have the necessary make stuff.
I couldn't get the necessary stuff because CPAN.pm wasn't installed. I
figured that perl wasn't correctly installed. So, I yum remove perl.
Ouch!! This uninstalled about 300 packages totalling some 200+ MBytes. I
then spend most of the remainder of the evening re-installing and
ftp'ing the missing guts of my system. (This shows just how naive I am).

-----Original Message-----
From: Fred Moyer
Sent: Wed 10/8/2008 6:02 PM
To: Ircha, Andrew
Cc: modperl@perl.apache.org
Subject: Re: Cannot start Apache with mod_perl

ispyhumanfly wrote:
> Ircha, Andrew wrote:
>> I'm attempting to run httpd with mod_perl, but the httpd refuses to
>> start:
>>
>> Starting httpd: httpd: Syntax error on line 209 of
>> /etc/httpd/conf/httpd.conf: Syntax error on line 10 of
>> /etc/httpd/conf.d/perl.conf: Cannot load
/etc/httpd/modules/mod_perl.so
>> into server: /etc/httpd/modules/mod_perl.so: undefined symbol:
>> modperl_io_perlio_restore_stdout

My gut says that you have some of the original FC8 libraries hanging
around - if you are running 5.10.0 then your fedora install must have
upgraded at some point. Those undefined symbol errors usually indicate
version mismatches of the underlying libraries.

For what it is worth, I would 'rpm -e mod_perl', then try building it
from source. Just download 2.0.4, untar it, cd into the directory, and
run 'perl Makefile.PL && make && make test && sudo make install', apxs
should be in your PATH with the standard fedora setup.

>> There's a hint on this mailing list that mod_perl 2 and perl 5.10.0
>> don't work together, but I'd like to discuss this before going back
to
>> 5.8.8, as I don't know how to downgrade perl with yum.
>>
> I'm not expert in regards to this matter, however I run mod_perl2 and
> Perl 5.10 just fine. So I'd be looking elsewhere for a solution...