A lot of warnings in PHP-FPM log file: invalid pointer

Created:

2016-12-12 03:47:18 UTC

Modified:

2017-08-08 13:38:22 UTC

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A lot of warnings in PHP-FPM log file: invalid pointer

Applicable to:

  • Plesk 12.5 for Linux

Symptoms

The log file php5-fpm.log contains a lot of warnings like:

[10-Nov-2016 10:22:25] WARNING: [pool example.com] child 10221 said into stderr: "*** Error in `php-fpm: pool example.com': free(): invalid pointer: 0x00007f44b40b63b8 ***"
[10-Nov-2016 10:22:25] WARNING: [pool example.com] child 10221 exited on signal 6 (SIGABRT) after 11.006275 seconds from start

Cause

'OPcache' module is disabled for domain example.com, while Zend Guard Loader is enabled on a server.

'OPcache' module is required for Zend Guard Loader to function properly.

Resolution

  • Enable 'OPcache' in Plesk > Domains > example.com > PHP Settings .

OR

  • Disable Zend Guard Loader on a domain level by adding zend_loader.enable = 0 in Additional configuration directives at Plesk > Domains > example.com > PHP Settings .

For more information about Zend Guard Loader configuration directives, see Zend Guard Loader help page .

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