[html-formfu] Memory leaks because of Catalyst::Controller::HTML::FormFu?

Octavian Rasnita orasnita at gmail.com
Sat Aug 14 12:39:56 GMT 2010


I have an applications that has big memory leaks so I started to search and solve them.

As a test, I created a Catalyst app using:

catalyst.pl Leaker

And I added the role CatalystX::LeakChecker to the module Leaker.pm:

extends 'Catalyst';
with 'CatalystX::LeakChecker';

I started the internal server using script/leaker_server.pl -p 80 and I accessed the app in the browser.

It was all right and no leaks were reported in the generated log.

Then I changed the controller Root.pm to extend

BEGIN { extends 'Catalyst::Controller::HTML::FormFu' }

I restarted the app and accessed it again in the browser.

This time, Catalyst::LeakChecker reported a leak found in the log with something like:

[debug] Circular reference detected:                                                                                                    
| $ctx->{stash}->{__InstancePerContext_58412720}->{c}                    |                                                              

So it obviously has something to do with C::C::H::FormFu.

Then I accessed http://localhost/?dump_info=1

and I searched for __InstancePerContext_58412720.
I found that it appears for more times in the dump closed to things related to C::C::H::FormFu.

Does anyone know if HTML::FormFu or C::C::H::FormFu has memory leaks or it is just a false alert?

If you have any idea, please give me some hints about how I can solve this issue.



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