syncroton memory error

[ladas]

> 
> Hello list.
> 
> I made second Kolab16 server at CentOS7. Both virtual guests at the same host. First one works well and has no problems. Second one use CPU 10-20%, more often 20% all the time and often reach 90% of 8GB RAM (with 4G swapped permanently). The first one use cca 1GB of 4GB. 
> I discovered at /var/log/kolab-syncroton/errors this strange message which repeats each minute:
> [04-May-2018 15:55:31 Europe/Berlin] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 54772603 bytes) in /usr/share/kolab-syncroton/lib/ext/Syncroton/Model/AXMLEntry.php on line 199
> 
> At line 199 is:
> 
> 198        // Replace ASCII control-characters
> 199        return preg_replace('/[\x00-\x08\x0B\x0C\x0E-\x1F]/', '', $dirty);
> 
> Can someone help where could be a trouble? This problem is the same after last update too.
> 
> Thank you very much for ideas.
> 
> Greetings,
> ladas
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