Re: Perl as DSO...whats wrong with it, specifically?
The one trick that finally enabled me to get mod_perl to work as a DSO with IBM's WebSphere on AIX was a utility named rtl_enable. There were a few changes I had to make to one of mod_perl's makefiles (apaci/Makefile, I think) to get libperl.so to build, but even then httpd would segfault as soon as mod_perl attempted to load a perl XS module. But, now I run 'rtl_enable libperl.so', then replace libperl.so with the file that gets generated. I still have to be careful about what I put in startup.pl, but at least it works. Perl 5.005_03, mod_perl 1.24, IBM C for AIX 5.0, and WebSphere 2.02. -- Dan Campbell
Re: Perl as DSO...whats wrong with it, specifically?
On Tue, Jul 25, 2000 at 07:37:47PM -0500, John Marquart wrote: Using the following config. line: perl Makefile.PL EVERYTHING=1 USE_APACI=1 APACI_ARGS='--enable-shared=perl' Everything builds up to this point ... === src/modules/standard Target "all" is up to date. === src/modules/standard === src/modules/perl rm -f libperl.so ld -bhalt:4 -bM:SRE -bI:/usr/local/lib/perl5/5.00503/aix/CORE/perl.exp - bE:.exp -b noentry -lc -L/usr/local/lib -bI:/httpd.exp -o libperl.so mod_perl.lo perlxsi.lo perl_config.lo perl_util.lo perlio.lo mod_perl_opmask.lo Apache.lo Constants.lo ModuleConfig.lo Log.lo URI.lo Util.lo Connection.lo Server.lo File. lo Table.lo ld: 0706-004 Cannot find or read export file: .exp ld:accessx(): A file or directory in the path name does not exist. Oops, the build process appears to be rather broken in the AIX case without APXS, this needs fixing. Does anybody know why there are so many ways to build mod_perl? And what is actually the most important way to build it? I always assumed the apxs way by touching the least of Apache is to be preferred. -- Jens-Uwe Mager HELIOS Software GmbH Steinriede 3 30827 Garbsen Germany Phone: +49 5131 709320 FAX:+49 5131 709325 Internet: [EMAIL PROTECTED]
RE: Perl as DSO...whats wrong with it, specifically?
I run mod_perl as a DSO without a problem. Just don't try to mix it with php as a DSO. On 25-Jul-2000 Michael Nachbaur wrote: I'm working with IBM (sorry! Its not my choice!) to try to get mod_perl compiled into their custom version of Apache, and their techs want to know why I can't run mod_perl as a DSO. So, I need to know, whats specifically wrong with it? Like, what are the repurcussions of it? This is going to be run under a lot of load as well. Thanks for your feedback in advance. --man Michael A. Nachbaur (KE6WIA) mnachba(at)rei(dot)com mike(at)nachbaur(dot)com http://www.nachbaur.com "Only two things are infinite, the universe and human stupidity, and I'm not sure about the former." - Albert Einstein -- Jason Bodnar + [EMAIL PROTECTED] + Team Linux Uh, so. Let's have a conversation. Uh, I think we'll find that we have very little in common. -- Homer Simpson The Last Temptation of Homer
Re: Perl as DSO...whats wrong with it, specifically?
"MN" == Michael Nachbaur [EMAIL PROTECTED] writes: MN I'm working with IBM (sorry! Its not my choice!) to try to get MN mod_perl compiled into their custom version of Apache, and their MN techs want to know why I can't run mod_perl as a DSO. So, I need MN to know, whats specifically wrong with it? Like, what are the MN repurcussions of it? This is going to be run under a lot of load MN as well. Thanks for your feedback in advance. As long as you have the latest version of mod_perl (probably from CVS) you're ok I think. I have no trouble with it on a BSD/OS system whatsoever. Others may disagree... I think it also depends on your OS. -- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Vivek Khera, Ph.D.Khera Communications, Inc. Internet: [EMAIL PROTECTED] Rockville, MD +1-301-545-6996 GPG MIME spoken herehttp://www.khera.org/~vivek/
RE: Perl as DSO...whats wrong with it, specifically?
So, if it depends on such variables as what its compiled with and what platform you're running on, then may I infer that it is somewhat flaky on unknown platforms? I'm going to be running this in a high-load environment on an AIX server with a not-too-current version of Perl (5.005_03 something-er-other), with misc. IBM libraries compiled into the binary. I'd say thats pretty iffy, but I'd like to get your opinions on it first. Thanks. -Original Message- From: Vivek Khera [mailto:[EMAIL PROTECTED]] Sent: Tuesday, July 25, 2000 1:22 PM To: Michael Nachbaur Cc: mod_perl Maillist Subject: Re: Perl as DSO...whats wrong with it, specifically? "MN" == Michael Nachbaur [EMAIL PROTECTED] writes: MN I'm working with IBM (sorry! Its not my choice!) to try to get MN mod_perl compiled into their custom version of Apache, and their MN techs want to know why I can't run mod_perl as a DSO. So, I need MN to know, whats specifically wrong with it? Like, what are the MN repurcussions of it? This is going to be run under a lot of load MN as well. Thanks for your feedback in advance. As long as you have the latest version of mod_perl (probably from CVS) you're ok I think. I have no trouble with it on a BSD/OS system whatsoever. Others may disagree... I think it also depends on your OS. -- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Vivek Khera, Ph.D.Khera Communications, Inc. Internet: [EMAIL PROTECTED] Rockville, MD +1-301-545-6996 GPG MIME spoken herehttp://www.khera.org/~vivek/
Re: Perl as DSO...whats wrong with it, specifically?
On Tue, Jul 25, 2000 at 01:14:32PM -0700, Michael Nachbaur wrote: I'm working with IBM (sorry! Its not my choice!) to try to get mod_perl compiled into their custom version of Apache, and their techs want to know why I can't run mod_perl as a DSO. So, I need to know, whats specifically wrong with it? Like, what are the repurcussions of it? This is going to be run under a lot of load as well. I am running mod_perl as a DSO on AIX and it works fine with the exception of a memory leak on each apachectl restart. As a workaround I use a real stop every few weeks to get the server memory footprint back to normal. -- Jens-Uwe Mager HELIOS Software GmbH Steinriede 3 30827 Garbsen Germany Phone: +49 5131 709320 FAX:+49 5131 709325 Internet: [EMAIL PROTECTED]
RE: Perl as DSO...whats wrong with it, specifically?
"MN" == Michael Nachbaur [EMAIL PROTECTED] writes: MN So, if it depends on such variables as what its compiled with and MN what platform you're running on, then may I infer that it is MN somewhat flaky on unknown platforms? I'm going to be running this I recall seeing some AIX specific workarounds to some things within mod_perl. I don't recall if those were DSO specific. I know for sure that on BSD/OS with perl 5.004_04 it is stable as a DSO using the latest mod_perl and apache from CVS (as of June 9, 2000 at least). I think if you make it and it works you're ok. You probably won't have a half-working result. It will either work or it will crash and burn violently. -- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Vivek Khera, Ph.D.Khera Communications, Inc. Internet: [EMAIL PROTECTED] Rockville, MD +1-301-545-6996 GPG MIME spoken herehttp://www.khera.org/~vivek/
Re: Perl as DSO...whats wrong with it, specifically?
On Tue, 25 Jul 2000, Michael Nachbaur wrote: I'm working with IBM (sorry! Its not my choice!) to try to get mod_perl compiled into their custom version of Apache, and their techs want to know why I can't run mod_perl as a DSO. So, I need to know, whats specifically wrong with it? Like, what are the repurcussions of it? This is going to be run under a lot of load as well. is this the continuation of a thread, or a new question? this has come up a lot in the mailing list.. have you checked the archives? -- Blue Lang Unix Systems Admin QSP, Inc., 3200 Atlantic Ave, Ste 100, Raleigh, NC, 27604 Home: 919 835 1540 Work: 919 875 6994 Fax: 919 872 4015
Re: Perl as DSO...whats wrong with it, specifically?
On Tue, Jul 25, 2000 at 04:33:12PM -0400, Vivek Khera wrote: I recall seeing some AIX specific workarounds to some things within mod_perl. I don't recall if those were DSO specific. I know for sure that on BSD/OS with perl 5.004_04 it is stable as a DSO using the latest mod_perl and apache from CVS (as of June 9, 2000 at least). There are a few patches necessary that must be applied to the _perl_ distribution to fix bugs I did in the original dl_aix.xs from perl around 1992 or so. But the latest CVS versions work fine on my AIX boxes. -- Jens-Uwe Mager HELIOS Software GmbH Steinriede 3 30827 Garbsen Germany Phone: +49 5131 709320 FAX:+49 5131 709325 Internet: [EMAIL PROTECTED]
Re: Perl as DSO...whats wrong with it, specifically?
ive personally not had any probs with mod_perl as a dso blue wrote: On Tue, 25 Jul 2000, Michael Nachbaur wrote: I'm working with IBM (sorry! Its not my choice!) to try to get mod_perl compiled into their custom version of Apache, and their techs want to know why I can't run mod_perl as a DSO. So, I need to know, whats specifically wrong with it? Like, what are the repurcussions of it? This is going to be run under a lot of load as well. is this the continuation of a thread, or a new question? this has come up a lot in the mailing list.. have you checked the archives? -- Blue Lang Unix Systems Admin QSP, Inc., 3200 Atlantic Ave, Ste 100, Raleigh, NC, 27604 Home: 919 835 1540 Work: 919 875 6994 Fax: 919 872 4015
Re: Perl as DSO...whats wrong with it, specifically?
On Tue, Jul 25, 2000 at 01:14:32PM -0700, Michael Nachbaur wrote: I'm working with IBM (sorry! Its not my choice!) to try to get mod_perl compiled into their custom version of Apache, and their techs want to know why I can't run mod_perl as a DSO. So, I need to know, whats specifically wrong with it? Like, what are the repurcussions of it? This is going to be run under a lot of load as well. Thanks for your feedback in advance. Well, it works now in most cases, if you use the current version. It's not necessarily a good idea if you're dealing with x86 (it has to be built PIC, and thus increases register pressure). But other than the slight PIC slowdown it hasn't caused problems in a few months. Dan /\ /\ | Daniel Jacobowitz|__|SCS Class of 2002 | | Debian GNU/Linux Developer__Carnegie Mellon University | | [EMAIL PROTECTED] | | [EMAIL PROTECTED] | \/ \/
Re: Perl as DSO...whats wrong with it, specifically?
On Tue, Jul 25, 2000 at 04:04:12PM -0500, John Marquart wrote: In general - all of the previous threads on this topic have either gone off-list or were never resolved. Sorry, I dropped your last post onto the floor somehow. I will answer in a seperate post about these. I spent several weeks trying various configurations w/ mod_perl-1.24 apache 1.3.12 on an AIX 4.3.3 box running perl 5.00503 and using xlc as my compiler. From the last post from you I have you appeared to use mod_perl-1.22. What exactly have you been using? I was never able to successfully compile a DSO mod_perl. However, most of the versions have a patch that needs to be applied to the dynamic loader code in perl. perl needs then to be recompiled before building mod_perl. even w/ these patches I was unable to build it successfully. I tried to use perl 5.6 as well - but ran into more problems (unrelated?) then I had w/ 5.00503. That is strange - what kind of errors do you get? -- Jens-Uwe Mager HELIOS Software GmbH Steinriede 3 30827 Garbsen Germany Phone: +49 5131 709320 FAX:+49 5131 709325 Internet: [EMAIL PROTECTED]
Re: Perl as DSO...whats wrong with it, specifically?
On Tue, Jul 25, 2000 at 11:57:56PM +0200, Jens-Uwe Mager wrote: From the last post from you I have you appeared to use mod_perl-1.22. What exactly have you been using? Oops - I did misread, you said you are using 1.24. -- Jens-Uwe Mager HELIOS Software GmbH Steinriede 3 30827 Garbsen Germany Phone: +49 5131 709320 FAX:+49 5131 709325 Internet: [EMAIL PROTECTED]
Re: Perl as DSO...whats wrong with it, specifically?
On Tue, 25 Jul 2000, Jens-Uwe Mager wrote: On Tue, Jul 25, 2000 at 04:04:12PM -0500, John Marquart wrote: In general - all of the previous threads on this topic have either gone off-list or were never resolved. Sorry, I dropped your last post onto the floor somehow. I will answer in a seperate post about these. Many thanks - very much appreciated. even w/ these patches I was unable to build it successfully. I tried to use perl 5.6 as well - but ran into more problems (unrelated?) then I had w/ 5.00503. That is strange - what kind of errors do you get? Using the following config. line: perl Makefile.PL EVERYTHING=1 USE_APACI=1 APACI_ARGS='--enable-shared=perl' Everything builds up to this point ... === src/modules/standard Target "all" is up to date. === src/modules/standard === src/modules/perl rm -f libperl.so ld -bhalt:4 -bM:SRE -bI:/usr/local/lib/perl5/5.00503/aix/CORE/perl.exp - bE:.exp -b noentry -lc -L/usr/local/lib -bI:/httpd.exp -o libperl.so mod_perl.lo perlxsi.lo perl_config.lo perl_util.lo perlio.lo mod_perl_opmask.lo Apache.lo Constants.lo ModuleConfig.lo Log.lo URI.lo Util.lo Connection.lo Server.lo File. lo Table.lo ld: 0706-004 Cannot find or read export file: .exp ld:accessx(): A file or directory in the path name does not exist. make: 1254-004 The error code from the last command is 255. Stop. make: 1254-004 The error code from the last command is 1. Stop. make: 1254-004 The error code from the last command is 1. Stop. make: 1254-004 The error code from the last command is 2. Stop. make: 1254-004 The error code from the last command is 2. Stop. make: 1254-004 The error code from the last command is 2. Stop. Since the problem appears the improper definition of the export file (I believe mod_perl.exp) I tried to link it by hand - but I don't understand the .lo files. I also tried changing -bE:$(BASEEXT).exp to -bE:mod_perl.exp. Neither of these helped. I haven't messed w/ apxs much yet - but will try it when i have time. (my mod_perl problems have actually taken back seat at the moment) thanks for all your alls help! -jamie John "Jamie" Marquart | This message posted 100% MS free. Digital Library SysAdmin| Work: 812-856-5174 Pager: 812-334-6018 Indiana University Libraries| ICQ: 1131494 D'net Team: 6265
Perl as DSO...whats wrong with it, specifically?
I'm working with IBM (sorry! Its not my choice!) to try to get mod_perl compiled into their custom version of Apache, and their techs want to know why I can't run mod_perl as a DSO. So, I need to know, whats specifically wrong with it? Like, what are the repurcussions of it? This is going to be run under a lot of load as well. Thanks for your feedback in advance. --man Michael A. Nachbaur (KE6WIA) mnachba(at)rei(dot)com mike(at)nachbaur(dot)com http://www.nachbaur.com "Only two things are infinite, the universe and human stupidity, and I'm not sure about the former." - Albert Einstein
