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From Hans Scharler <>
Subject Re: Problem with long http request generation time - process restarting
Date Sat, 28 Jan 2012 22:52:48 GMT
The Classify.dll issue gave me much trouble to figure out. In my instance,
the issue has nothing to do with the database or Oracle.

Here's what I found:

Updating DateTime to version 0.72 includes Params::Classify as a dependency.

Also, DateTime-TimeZone version 1.40 also includes Params::Classify.

When Classify.dll gets onto a Windows installation of mod_perl, Apache will
crash/restart often. Regular Perl is fine.

The latest DateTime and DateTime-TimeZone modules that work with mod_perl
are DateTime 0.70 and DateTime-TimeZone 1.34.

I spend a few days troubleshooting Classify.dll and the only way I could
get it to work was to remove it and use older versions of DateTime.

I hope this helps you out.


On Fri, Jan 27, 2012 at 5:44 PM, Perrin Harkins <> wrote:

> Sorry, just a clumsy cell phone touch.
> - Perrin
> On Jan 27, 2012 5:42 PM, "Perrin Harkins" <> wrote:
>>  - Perrin
>> On Jan 13, 2012 6:47 PM, "Andrew Merton (subscriptions)" <
>>> wrote:
>>>  On 17/12/2011 7:20 a.m., Randolf Richardson wrote:
>>>  Thanks for the responses :)
>>> However - I just read another thread somewhere that made me think of
>>> looking in the Event log.
>>> It appears that the culprit is Oracle - there are errors
>>> naming OraOCIEI11.dll as the "Faulting Module name".
>>>  	That's very interesting.  Windows Event Viewer is a good place to
>>> look (I keep forgetting about it as I'm used to /var/log/messages in
>>> Unix/Linux and similar environments).
>>>  Well.  It turns out that in this case the event log was actually a red
>>> herring. By creating another Apache instance (to avoid breaking the
>>> "production" server :)) and stripping out all references to Oracle, DBI,
>>> DBD etc from both httpd.conf and the Perl, I have determined that the
>>> problem has nothing to do with Oracle.
>>> After doing that, I was getting exception code 0xC00000FD (Stack
>>> overflow) in Classify.dll (Params::Classify?) so I tried setting the
>>> ThreadStackSize to 2MB, and now I get 0xC0000005 and the module is unknown
>>> according to the Event log.
>>> I think I'm going mad.
>>> Is there a way to make Apache/mod_perl (on Windows 7) give me a stack
>>> dump when the child process exits?  Al I get in the log is the "Parent:
>>> child process exited ..." message, which is not very helpful.  I have
>>> downloaded the files from ActiveState and installed them in
>>> the proper directories (alongside their .dlls), but then realised that I'm
>>> not getting the equivalent of a core dump file to analyze.  The Event log
>>> points to a directory containing only a text file (*.wer) which doesn't
>>> have anything useful AFAICS...
>>> Andrew

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