Version command on dashboard returning debug information

[gessel]

This is what I get as a "version" on the dashboard.  It doesn't really look like happy output:

2.1.5-RELEASE (i386) 
built on Mon Aug 25 07:44:26 EDT 2014 
FreeBSD 8.3-RELEASE-p16
Warning: file_get_contents(/tmp/config.cache): failed to open stream: Too many open files in system in /etc/inc/config.lib.inc on line 122 Warning: Cannot modify header information - headers already sent by (output started at /etc/inc/config.lib.inc:122) in /usr/local/www/guiconfig.inc on line 48 Warning: Cannot modify header information - headers already sent by (output started at /etc/inc/config.lib.inc:122) in /usr/local/www/guiconfig.inc on line 49 Warning: Cannot modify header information - headers already sent by (output started at /etc/inc/config.lib.inc:122) in /usr/local/www/guiconfig.inc on line 50 Warning: Cannot modify header information - headers already sent by (output started at /etc/inc/config.lib.inc:122) in /usr/local/www/guiconfig.inc on line 51 Warning: Cannot modify header information - headers already sent by (output started at /etc/inc/config.lib.inc:122) in /usr/local/www/guiconfig.inc on line 52 Warning: Cannot modify header information - headers already sent by (output started at /etc/inc/config.lib.inc:122) in /usr/local/www/guiconfig.inc on line 55 Warning: Invalid argument supplied for foreach() in /etc/inc/util.inc on line 801 Warning: Invalid argument supplied for foreach() in /etc/inc/util.inc on line 801 Error: 501 Description: An HTTP_REFERER was detected other than what is defined in System -> Advanced (https://10.0.251.3/). You can disable this check if needed in System -> Advanced -> Admin.

Memory usage is 12%, swap 0%, disk 5%.

[cmb]

The key part there seems to be "Too many open files in system". What has a slew of files open is the question. Check output of 'fstat' for what all is open.