https://bugzilla.wikimedia.org/show_bug.cgi?id=54815
Web browser: ---
Bug ID: 54815
Summary: Flow failures "Base lambda function for closure not
found" in error.log
Product: MediaWiki extensions
Version: master
Hardware: All
OS: All
Status: NEW
Severity: major
Priority: Unprioritized
Component: Flow
Assignee: wikibugs-l@lists.wikimedia.org
Reporter: sp...@wikimedia.org
CC: ebernhard...@wikimedia.org, sp...@wikimedia.org
Classification: Unclassified
Mobile Platform: ---
Sometimes ee-flow only loads part of a Flow page (and none of the page skin),
or reports an error trying to submit a post.
/var/log/apache2/error.log reliably contains:
PHP Fatal error: Base lambda function for closure not found in
/srv/mediawiki/extensions/Flow/templates/post.html.php on line 5, referer:
http://ee-flow.wmflabs.org/wiki/Special:Flow/<some page>
ErikB comments that it's a bug in the PHP APC accelerator [I think
https://bugs.php.net/bug.php?id=52144]. It was fixed in version 3.1.10 of the
php-apc package, but our servers run Ubuntu 12.04 (precise) for which the
package is 3.1.7. PHP 5.3.19 is the first PHP version with the fix. ErikB
remarks `the temporary workaround is "never put a lambda (anonymous function)
at the top level of a php file"'
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