PHP fatal error reported – insane memory requirements

Hi very much depends on the calendar file you are trying to load. If there are lots of events? perhaps some ‘old’ recurring events – plugin has to parse all the events (and recur any rrecuring events) and hold them in memory initially in case there are adjustments records further in the file.

There are some ‘debug’ features, add ?memdebug to your calendar url and it will list php mem at various stages.

eg: http://test.icalevents.com/agenda/ics-tes/?memdebug
gives:
memory: 20.25 mb peak:20.25 mb Before Process ical url
memory: 20.25 mb peak:20.25 mb Before parse ical url
memory: 21 mb peak:21.25 mb Before process
memory: 21 mb peak:21.25 mb Before constrain
memory: 21 mb peak:21.25 mb Before listing
memory: 21 mb peak:21.25 mb After generating listing

If it is the calendar pics url parsing etc that needs the memory, then Open the ics file in notepad to see what’s in it.

Alternatively could be that something else is pushing wp close to the limit and then the ics event handling is the ‘last straw’ that pushes it over.

also maybe have a look at your theme and other plugin support forums to see if they are having memory issues, especially if your site shows a high memory before the parsing of the ical url