Comment 0 for bug 863895

Since out Update to Mahara 1.4 the cron job isn't working any more.
Even though it is setup properly Mahare reports that the cron job isn't running. Here's what the Apache log says:
[DBG] e7 (lib/cron.php:146) Running core cron rebuild_artefact_parent_cache_dirty
[DBG] e7 (lib/cron.php:502) Skipping long-running cron job core_auth_handle_account_expiries (Wed, 21 Sep 2011 10:06:01 +0200).
[DBG] e7 (lib/cron.php:146) Running core cron activity_process_queue
[DBG] e7 (lib/cron.php:146) Running core cron import_process_queue
[DBG] e7 (lib/cron.php:168) ---------- cron finished Thu, 22 Sep 2011 09:35:01 +0200 ----------
[DBG] 38 (lib/cron.php:45) ---------- cron running Thu, 22 Sep 2011 09:36:01 +0200 ----------
[DBG] 38 (lib/cron.php:146) Running core cron rebuild_artefact_parent_cache_dirty
[DBG] 38 (lib/cron.php:502) Skipping long-running cron job core_auth_handle_account_expiries (Wed, 21 Sep 2011 10:06:01 +0200).
[DBG] 38 (lib/cron.php:168) ---------- cron finished Thu, 22 Sep 2011 09:36:01 +0200 ----------
[DBG] db (lib/cron.php:45) ---------- cron running Thu, 22 Sep 2011 09:37:01 +0200 ----------
[DBG] db (lib/cron.php:146) Running core cron rebuild_artefact_parent_cache_dirty
[DBG] db (lib/cron.php:502) Skipping long-running cron job core_auth_handle_account_expiries (Wed, 21 Sep 2011 10:06:01 +0200).
[DBG] db (lib/cron.php:168) ---------- cron finished Thu, 22 Sep 2011 09:37:01 +0200 ----------
A nonrecoverable error occured. This probably means you have encountered a bug in the systemxargs: illegal option -- r
xargs: Usage: xargs: [-t] [-p] [-e[eofstr]] [-E eofstr] [-I replstr] [-i[replstr]] [-L #] [-l[#]] [-n # [-x]] [-s size] [cmd [args ...]]
A nonrecoverable error occured. This probably means you have encountered a bug in the systemxargs: illegal option -- r

Server OS: SunOS
PHP Version: 5.2.9
Database: MySQL
Mahara Version: 1.4
Browser: Firefox 7.0.1