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PHP: Require_once(): Unable To Allocate Memory For Pool Error and Solution

by on July 20, 2012 · 4 comments

I‘m running PHP version 5.3.3 on CentOS / RHEL 6.x with APC php-pecl-apc-3.1.9. However, I’m getting the following warnings in my php server log file:

[01-Jul-2012 10:50:49] PHP Warning: require_once(): Unable to allocate memory for pool. in /var/www/html/includes/admin.php on line 57
[18-Jul-2012 17:00:08] PHP Warning: include_once(): Unable to allocate memory for pool. in //var/www/html/includes/xmlrpc.php on line 55
[18-Jul-2012 17:00:40] PHP Warning: require(): Unable to allocate memory for pool. in /var/www/html/includes/geshi.php on line 2307

How do I fix these php warnings?

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Linux: Neighbour Table Overflow Error and Solution

by on December 19, 2011 · 1 comment

I setup a CentOS Linux based Linux server running as a gateway and firewall server. However, I’m getting the following messages in the /var/log/messages log file:

Dec 20 00:41:01 fw01 kernel: Neighbour table overflow.
Dec 20 00:41:01 fw01 last message repeated 20 times

OR


Dec 20 00:41:01 fw03 kernel: [ 8987.821184] Neighbour table overflow.
Dec 20 00:41:01 fw03 kernel: [ 8987.860465] printk: 100 messages suppressed.

Why does kernel throw “Neighbour table overflow” messages in syslog? How do I fix this problem under Debian / CentOS / RHEL / Fedora / Ubuntu Linux?

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