I get internal server errors all the time on my site. It’s not connected to a certain action but occurs randomly across the site. I have searched the logs for an explanation and found the following:
In my php5-fpm.log there are a whole lot of entries that states (SIGBUS – core dumped), these are connected to the error.log where I get messages that:
[error] [client xx.xx.xx.xx] FastCGI: (104) Connection reset by peer: FASTCGI: comm with server "/usr/lib/cgi-bin/php5-fcgi" aborted: read failed. Sometimes followed by a referrering page.
I know for a fact that when these occur the person that is trying to get a page is getting an internal server error response from the browser.
The SIGBUS entries started to occur after an update of wordpress plugins, that is why I’m posting this here, your plugin is on the list. Do you know if any changes made to the plugin prior to the 5th of March could cause anything like this?
I'm using version 140220 of your plugin.