10.13.6 (17G3014) – CalendarAgent process consumes all the CPU and memory available

Originator:xfox
Number:rdar://45068853 Date Originated:October 6 2018, 7:38 PM
Status:Duplicate/37838036 Resolved:No
Product:macOS + SDK Product Version:macOS 10.13.6 (17G3014)
Classification:UI/Usability Reproducible:Unable
 
Area:
Calendar

Summary:
The CalendarAgent process is using 100% of CPU and its memory footprint  varies from 4 to 7 GB. I noticed it because the fans of the Mac started to blow at max speed.
It happened some time after I updated the Mac with Security Update Developer Beta 10.13.6 but I don't know if it's related.
The Console.app "All messages" log showed no messages related to Calendar or CalendarAgent.
When I opened Calendar.app I saw an alert sign beside one of the Office 365 calendars I have delegated access to.
The issue lasted for several hours until I restarted the Mac.

Steps to Reproduce:
I haven't done anything specific to trigger this issue.

Expected Results:
CalendarAgent should not consume all the available CPU and memory.

Actual Results:
I had to restart the Mac to stop CalendarAgent to consume all the available CPU and memory.

Version/Build:
macOS 10.13.6 (17G3014)

Configuration:
MacBook Air (13-inch, Mid 2012)

Comments


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