Hi monks,
i just encountered a very strange Apache/modperl behavior, I'll be happy if someone can explain why things happened the way they did.

I have an Apache2 mod perl handler, somewhere deeper inside this module is used:

package SynAdmin::Response;
use base 'SynAdmin';

use warnings;
use strict;

sub print {
        my ($self) = @_;
        $$self{r}->content_type('text/plain');
        $self->tpl_proc()->process('main.tpl', $self{data}, $$self{r})
+;
}

1;

[download]

As you can see, there's an error - a missing $ in $self{data}. The weird thing is, when I restarted the server to activate this changed module, Apache crashed with /usr/sbin/apachectl: line 91: 18435 Segmentation fault      $HTTPD $OPTIONS -t. Usually when there's a syntax error in my code, Apache passes on the perl error message. Can anyone tell why not in this case?

Server Version: Apache/2.2.8 (Unix) DAV/2 mod_apreq2-20051231/2.6.1 mod_perl/2.0.3 Perl/v5.8.8

Any comments are appreciated!

Update: If I change the $self{data} into a simple $x, I get the Global symbol "$x" requires explicit package name I'd expect and it propagates well through.

In reply to Handler syntax error causes an apache segfault during startup by pjotrik

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