Repeated crashes of 'suggestd' I've been running OS X 10.11 without issues since it was released — until today, when suggestd began repeatedly crashing (from every few minutes, up to every 30 seconds).

What is suggestd and how do I disable it (since it's only function appears to be to crash)?



Process:               suggestd [23293]
Path:                  /System/Library/PrivateFrameworks/CoreSuggestions.framework/Versions/A/Support/suggestd
Identifier:            suggestd
Version:               1.0 (354.10)
Code Type:             X86-64 (Native)
Parent Process:        ??? [1]
Responsible:           suggestd [23293]
User ID:               501

OS Version:            Mac OS X 10.11 (15A284)
Report Version:        11

System Integrity Protection: enabled

Crashed Thread:        3  Dispatch queue: com.apple.NSXPCConnection.m-user.com.apple.rtcreportingd

Exception Type:        EXC_CRASH (SIGABRT)
Exception Codes:       0x0000000000000000, 0x0000000000000000
Exception Note:        EXC_CORPSE_NOTIFY

Application Specific Information:
*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'RTC config incorrect - no backends found;'
abort() called
terminating with uncaught exception of type NSException
I turned off Contact's new "Show Contacts Found In Mail" feature (Contacts > Preferences > General > "Show Contacts Found In Mail" or "Show Contacts Found In Apps" in later versions of macOS), and that seems to have shut down suggestd crashes in my log. That also deleted ~/Library/Suggestions/harvestqueueold, which was previously filled by what looked like a bunch of temporary files. I'm going to try turning it back on now and see if the crashes resume.