[gollem] Unknown DB Error when uploading file

[Rob Rosenfeld]

In general, gollem has been working just fine.  I was uploading four 
files today and one repeatedly failed.  It was the largest file fo the 
four.  The page displayed "Unknown DB Error", but I found the following 
in my horde.log file. Any ideas what's going wrong?  The file that's 
giving me trouble is just under 1MB (1,020,799 bytes).  Could I be 
hititng a size limit?

[nativecode=1153 ** Got a packet bigger than 'max_allowed_packet'] [on 
line 162 of "/usr/lib/php/Horde/Notification.php"]

Here is my backends.php config

$backends['sqlhome'] = array(
    'name' => 'SQL Server with home',
    'driver' => 'sql',
    'preferred' => '',
    'params' => array_merge($GLOBALS['conf']['sql'], array('table' => 
'horde_vfs')),
    'attributes' => array('type', 'name', 'download', 'modified', 
'size', 'permission', 'owner', 'group'),
    'root' => '/home',
    'home' => '/home/' . Auth::getAuth(),
);