[rt-users] Weird panic error

[Josh Narins]

One way to get farther in situations like these is a quick hack to HTML/Quoted.pm as follows:

eval {
    my $parser = HTML::Quoted::Parser->new(
        [...]
    );
};
if ($@) {
  require Carp;
  Carp::confess("TOKEN or interesting variable");
}




Josh Narins
Director of Application Development
SeniorBridge

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jnarins at seniorbridge.com
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From: rt-users-bounces at lists.bestpractical.com [mailto:rt-users-bounces at lists.bestpractical.com] On Behalf Of Bart
Sent: Thursday, February 16, 2012 4:03 AM
To: rt-users at lists.bestpractical.com
Subject: [rt-users] Weird panic error

Hi,

Weir experiencing a weird error in our production installation of RT, something we haven't seen before.

It's randomly creatiing errors, after a bunch of refreshes it seems to work again for a while.
Clearing the mason object cache + reloading the webservice also seems to help a bit. (but only for a while)

Below a few errors that weir getting:
1) panic: attempt to copy value HTML::Quoted::Parser=HASH(0x7f7a770dc590) to a freed scalar 7f7a77eac6d0 at /usr/local/share/perl/5.10.1/HTML/Quoted.pm line 79.

2) Cannot copy to ARRAY in sassign at /usr/local/share/perl/5.10.1/HTML/Quoted.pm line 79.

The errors result in no history being shown, not in the overview page or on the history page. (the history is replaced by the error line)

4.0.4 is our current version, I haven''t yet made plans for upgrading to 4.0.5. (should I?)
We've experienced these errors since version 4.0.4 of RT, we didn't seem to have these errors with version 4.0.2.

It seems to be something with the HTML Quoted.pm file, thats the common factor on all errors. I just don't have a clue on where to find the solution.

Since the problem comes up randomly it's a little difficult to figure out what's causing it, I'm assuming that it might be the plugin "RT::Extension::HistoryFilter" but turing that one off will affect the user experience allot.
Also, we can't seem to reproduce the error in our testing environment, which uses the same plugins and an almost identical configuration.

In addition, I'm getting a bunch of errors in the apache logs for RT. Though I'm not sure if they are related: (snippets of the most common errors, they happen quite allot, especially the last one listed)
Error while loading /opt/rt4/sbin/rt-server: Since your configuration exists (/opt/rt4/etc/RT_SiteConfig.pm) but is not writable, I'm refusing to do anything.\n, referer: https://rt......
Apache2::RequestIO::rflush: (103) Software caused connection abort at /usr/local/share/perl/5.10.1/Plack/Handler/Apache2.pm line 153, referer: https://rt......

Has anyone seen these errors before? And if so, what could be the cause?

Thanks in advance!

-- Bart
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