[pmwiki-users] How to fix broken RSS feed and AllRecentChanges?

Charles Weir charles at penrillian.com
Thu Feb 27 11:15:22 CST 2014

Many thanks for the suggestions.

The problem (in the PHP error log) is:
[27-Feb-2014 15:37:17] PHP Fatal error:  Allowed memory size of 12582912 bytes exhausted (tried to allocate 7446 bytes) in C:\Program Files\Apache Group\Apache2\htdocs\pmwiki\pmwiki.php on line 864

The line number varies a little (862,863,864).  And I get the same error no matter what page I request with RSS.

I’ve tried the two suggestions:
* We’re now running pmwiki-2.2.61
* The Site/AllRecentChanges is only a few lines.

And I’m stuck.  It looks to me as though the offending line is something to do with collecting global variables!

How do I make the RSS request not fail?

Best regards,


From: Simon [mailto:nzskiwi at gmail.com]
Sent: 19 February 2014 21:44
To: Charles Weir
Cc: pmwiki-users at pmichaud.com
Subject: Re: [pmwiki-users] How to fix broken RSS feed and AllRecentChanges?

You could check the web server log, or better the php log, to see what errors might be happening under the hood.

As far as upgrading goes, PmWiki is pretty easy and reliable to update. I find it is really just a matter of copying the new release files over the old ones.
It is easy to copy your website (i.e. the root folder pmwiki), do an upgrade, and test, or backup the pmwiki root folder, do the upgrade, if no workie restore the original.

On 20 February 2014 09:50, Charles Weir <charles at penrillian.com<mailto:charles at penrillian.com>> wrote:
Thank you to Patrick and Randy for the suggestions!

I've got AllRecentChanges back again - great!  But I'm still stuck on the RSS feed - it seems to be something else.  I agree it might help to upgrade PMWiki, but I view that with well-learned fear and trepidation.  The actual problem is an error 500.

Is there a log somewhere that would tell me what's caused the problem?

Charless-MacBook-Pro:~ charles$ curl -v http://apache/pmwiki/index.php/Site/AllRecentChanges?action=rss
* About to connect() to apache port 80 (#0)
*   Trying
* connected
* Connected to apache ( port 80 (#0)
> GET /pmwiki/index.php/Site/AllRecentChanges?action=rss HTTP/1.1
> User-Agent: curl/7.24.0 (x86_64-apple-darwin12.0) libcurl/7.24.0 OpenSSL/0.9.8y zlib/1.2.5
> Host: apache
> Accept: */*
* HTTP 1.0, assume close after body
< HTTP/1.0 500 Internal Server Error
< Date: Wed, 19 Feb 2014 17:35:23 GMT
< Server: Apache/2.0.50 (Win32) PHP/5.2.5
< X-Powered-By: PHP/5.2.5
< Connection: close
< Content-Type: text/html; charset=ISO-8859-1
* Closing connection #0
Charless-MacBook-Pro:~ charles$

Best regards,


-----Original Message-----
From: Patrick Michaud [mailto:patrick.michaud at gmail.com<mailto:patrick.michaud at gmail.com>] On Behalf Of Patrick R. Michaud
Sent: 18 February 2014 19:20
To: Charles Weir
Cc: pmwiki-users at pmichaud.com<mailto:pmwiki-users at pmichaud.com>
Subject: Re: [pmwiki-users] How to fix broken RSS feed and AllRecentChanges?

It's possible that the two problems are related... the AllRecentChanges page may have gotten too large for PmWiki to update properly, and the RSS feed likes to use (All)RecentChanges to generate its content.

I suggest shortening (or removing/renaming) the AllRecentChanges page and see if it starts working again, then see if the RSS feed comes back.


On Tue, Feb 18, 2014 at 12:40:46PM +0000, Charles Weir wrote:
> Hi,
> We've got a PmWiki running with internal company information.  It's done us fine for many years.  And the people who set it up have now left. :-(  I'm a newbie to the working of the wiki, though I know well how to create content.
> Alas the RSS all-changes feed stopped working a couple of years back, and the AllRecentChanges page has just stopped working.
> What could be causing this, and how to I go about diagnosing it and fixing it?
> The wiki installation is running version pmwiki-2.2.0-beta54, version number 2001954.
> Best regards,
> Charles Weir
> CEO and Technical Director
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