Memory limits exhausted (roundcube)

[Thomas Baumann]

Hello list,

how should e.g. php.ini being adjusted? We have kolab 3.3 on centos 6.6.

Logs say:

==> /var/log/httpd/error_log <==
QFile::remove: Empty or null file name
unnamed app(21643) KSystemTimeZonesPrivate::readConfig: readConfig(): local
zone= "UTC"
unnamed app(21643) KSystemTimeZonesPrivate::readZoneTab: readZoneTab(
"/usr/share/zoneinfo/zone.tab" )
[Mon Nov 17 11:06:00 2014] [error] [client 2.203.167.99] PHP Fatal error:
 Allowed memory size of 268435456 bytes exhausted (tried to allocate 71
bytes) in
/usr/share/roundcubemail/plugins/calendar/drivers/kolab/kolab_calendar.php
on line 326, referer:
http://mail.mydomain.de/roundcubemail/52fca479caa7dc90/?_task=mail&_mbox=INBOX
[Mon Nov 17 11:06:00 2014] [notice] child pid 21643 exit signal
Segmentation fault (11)

What means "QFile::remove: Empty or null file name"

Best regards,

Thomas
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