Thread:Project:Support desk/PHP Notice: unserialize(): Error at offset 0

I'm trying to get Mediawiki working with Postgresql 9.1 and Php 5.3.3 but am continually seeing a php unserialize error when trying to run multiple scripts from the maintenance directory (rebuildall.php, refreshLinks.php, importdump.php). I've tried this with MW 1.17 and 1.16.5 The import completes and the functionality seems fine but I'd like to get to the bottom of this error. There's a ton of stuff about an old MW bug under version 1.11 but nothing current (I did check to make sure the patch to that bug was in both versions I've tried). When running the scripts I see the output "PHP Notice: unserialize: Error at offset 0 of 53 bytes in /usr/local/apache2/htdocs/mediawiki/includes/BagOStuff.php on line 437" to standard out. It's also written to my php error logs.