Title: interrupted system call
Last modified: November 26, 2016

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# interrupted system call

 *  [gottfrieds](https://wordpress.org/support/users/gottfrieds/)
 * (@gottfrieds)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/interrupted-system-call/)
 * I use WP 4.6.1 and Cachify 2.2.4. For a long time there were no problems. I made
   no changes but now I receive the following warning:
 * >  Warning: unlink(/mnt/webh/a1/76/52551976/htdocs/wp-content/cache/cachify/spd-
   > simmerath.de/tag/junker/index.html):
   >  Interrupted system call in /mnt/webh/
   > a1/76/52551976/htdocs/wp-content/plugins/cachify/inc/cachify_hdd.class.php 
   > on line 267 Warning: Cannot modify header information – headers already sent
   > by (output started at /mnt/webh/a1/76/52551976/htdocs/wp-content/plugins/cachify/
   > inc/cachify_hdd.class.php:267) in /mnt/webh/a1/76/52551976/htdocs/wp-admin/
   > post.php on line 197 Warning: Cannot modify header information – headers already
   > sent by (output started at /mnt/webh/a1/76/52551976/htdocs/wp-content/plugins/
   > cachify/inc/cachify_hdd.class.php:267) in /mnt/webh/a1/76/52551976/htdocs/wp-
   > includes/pluggable.php on line 1174
 * What might be the reason for the warnings?

Viewing 1 replies (of 1 total)

 *  Plugin Support [Torsten Landsiedel](https://wordpress.org/support/users/zodiac1978/)
 * (@zodiac1978)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/interrupted-system-call/#post-8507663)
 * [Unlink](http://php.net/manual/de/function.unlink.php) is used for [flushing the cache](https://github.com/pluginkollektiv/cachify/blob/7d38e813ccaa6cd4ef0408d1016d0edcf8b59a1f/inc/cachify_hdd.class.php#L267)
   in Cachify.
 * Maybe the [Interrupted system call](https://www.quora.com/What-are-interrupted-system-calls)
   happens, because you have no permissions to delete files on your server? I would
   contact your hoster support to clarify.
 * All the best,
    Torsten

Viewing 1 replies (of 1 total)

The topic ‘interrupted system call’ is closed to new replies.

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 * 1 reply
 * 2 participants
 * Last reply from: [Torsten Landsiedel](https://wordpress.org/support/users/zodiac1978/)
 * Last activity: [9 years, 6 months ago](https://wordpress.org/support/topic/interrupted-system-call/#post-8507663)
 * Status: not resolved