[ic] OpenBSD 3.0 segmentation fault

[interchange-users@interchange.redhat.com (Joachim Leidinger)]

gbm@pecosbill.com wrote:
> 
> No, it didn't work, but thanks for the reply.
> Brent Mayes
> 
....
> 
> On Tue, 8 Jan 2002 gbm@pecosbill.com wrote:
> 
> > I get a segmentation fault when starting Interchange on OpenBSD 3.0
> > with all the latest perl,apache, and interchange distributions. Tried
> > a reinstall of perl with set proctitle=define without success. Anyone
> > got Interchange working with OpenBSD?
> 
> I tested Interchange 4.8.3 on OpenBSD 2.7, without problems. I haven't
> tried it on OpenBSD 3.0. As someone else mentioned, it would be worth
> forcing $0 to remain unchanged by setting 'Variable MV_DOLLAR_ZERO 0' in
> interchange.cfg (delete the ifdef/endif lines). Does that fix it?

There are two common cause to get a segmentation fault with FreeBSD!

1. UI is off in interchange
   Variable  UI  0 (instead of 1)
   and in catalog.cfg
   Require UserTag   email email_raw var loc table_editor button
   instead of
   Require UserTag   email email_raw var button

2. in bin/interchange try

-------- snip -------------
	if ($Vend::mode eq 'serve') {
		undef $Global::Foreground;

		# Here we prepare enter the daemon mode.

		# Set $0 to something pretty for ps(1).
		# Won't work on Solaris and IRIX among possibly others.
		# Dumps core on FreeBSD 4 stock Perl build.
		if (defined $Global::Variable->{MV_DOLLAR_ZERO}) {
			if ($Global::Variable->{MV_DOLLAR_ZERO}) {
				if (length($Global::Variable->{MV_DOLLAR_ZERO}) > 1) {
#					$0 = $Global::Variable->{MV_DOLLAR_ZERO};
				}
				else {
#					$0 = "interchange --> $Global::VendRoot";
				}
			}
			# do nothing if MV_DOLLAR_ZERO is defined but false
		}
		else {
#			$0 = 'interchange';
		}

		# We won't have much output on any of this, but if we get some
		# we want it immediately
        select STDERR; 
        $| = 1;
        select STDOUT;
        $| = 1;
-------- snip -------------

Question to Mike Heins:

Dear Mike Heins,

why not moving the above part of codes intos Server.pm like

---------- snip -----------
package Vend::Server;

use vars qw($VERSION);
$VERSION = substr(q$Revision: 2.0 $, 10);

use POSIX qw(setsid strftime);
use Vend::Util;
use Fcntl;
use Errno qw/:POSIX/;
use Config;
use Socket;
use Symbol;
use strict;

# test jojo

		if(defined $Global::Variable->{MV_DOLLAR_ZERO}) {
#jojo
			$0 = $Global::Variable->{MV_DOLLAR_ZERO};
			$0 = "interchange --> $Global::VendRoot"
					if length($0) < 2;
		}
		else {
#jojo
			$0 = "interchange jojo";
		}


sub new {
    my ($class, $fh, $env, $entity) = @_;

---------- snip -----------

It works for me and 

---------- snip -----------
# FreeBSD's stock Perl build dumps core if you set $0, so let's not
touch it
ifdef DOLLAR_ZERO_BUG or $^O =~ /freebsd/
Message Running FreeBSD; disabling $0 set
Variable MV_DOLLAR_ZERO 0
endif
---------- snip -----------

in interchange.cfg.dist is not necessary! Or is there any other reason
to let that part of codes in bin/interchange?
I can set $0 without any problem and with Perl Version 5.005_03 in my
FreeBSD, if the above part of codes is in Server.pm instead of
bin/interchange.

Thank you for your time and clarification!

Joachim


-- 
Hans-Joachim Leidinger | Dipl.-Phys.Ing. Entwicklung eCommerce
[Hans-Joachim.leidinger@bpanet.de]
Black Point Arts Internet Solutions GmbH
http://www.bpanet.de