Hey All, Upgraded from 1.20 to 1.23rc3 yesterday, ran update.php, everything worked fine -- except for Special:SpecialPages. Disabled all extensions to see if that was doing it, but no change. It comes back with a Connection Reset error. I went to Apache's error logs and came across this for each failed attempt: [Thu Jun 05 09:10:51 2014] [notice] child pid 18983 exit signal Segmentation fault (11) Uh oh. Thought that maybe 1.23.0 would fix the issue, woke up this morning, updated again, and the page loaded!! However, with warnings: PHP Warning: Illegal offset type in isset or empty in /var/www/ops_dev/includes/User.php on line 1390 PHP Warning: Illegal offset type in isset or empty in /var/www/ops_dev/includes/User.php on line 1390 PHP Warning: Illegal offset type in isset or empty in /var/www/ops_dev/includes/User.php on line 1390 PHP Warning: Illegal offset type in isset or empty in /var/www/ops_dev/includes/User.php on line 1390 PHP Warning: Illegal offset type in isset or empty in /var/www/ops_dev/includes/User.php on line 1390 I thought, great! Maybe one of the extensions is causing the error. So I went and disabled all extensions, and reloaded the page and got the 'Connection reset'. [Thu Jun 05 09:15:11 2014] [notice] child pid 19200 exit signal Segmentation fault (11) Re-enabled extensions, Seg fault still. Tried again a few seconds ago, Warning: Illegal offset type in isset or empty in /var/www/ops_dev/includes/User.php on line 1390 (x10) Any help would be greatly appreciated! Thanks, Tom ---------------------------------------------------------------more info MediaWiki 1.23.0 <https://www.mediawiki.org/wiki/MediaWiki_1.23> (1346cdb) <https://git.wikimedia.org/commit/mediawiki%2Fcore.git/1346cdbba7e7f4560b572a73ecd3625192440e98> 16:57, 4 June 2014 PHP 5.3.6-13ubuntu3.10 (apache2handler) MySQL 5.1.52 Ubuntu 11.10 Server version: Apache/2.2.20 (Ubuntu) Server built: Mar 8 2013 15:58:04 Server's Module Magic Number: 20051115:28 Server loaded: APR 1.4.5, APR-Util 1.3.12 Compiled using: APR 1.4.5, APR-Util 1.3.12 Architecture: 64-bit Server MPM: Prefork threaded: no forked: yes (variable process count)