Ever since upgrading my development machine to OS X 10.10 Yosemite I have been
seeing the following in the system log.
01/08/2015 4:22:17.478 PM MyApp[737]: CGSReenableUpdate: unbalanced
enable/disable update.
01/08/2015 4:22:17.530 PM MyApp[737]: Backtrace (at 1263.42):
01/08/2015 4:22:17.530 PM MyApp[737]: CGSReenableUpdate: 0 CoreGraphics
0x00007fff8e594215 CGSBacktraceCreate + 59
01/08/2015 4:22:17.530 PM MyApp[737]: CGSReenableUpdate: 1 CoreGraphics
0x00007fff8e9f6a92 CGSLogBacktrace + 15
01/08/2015 4:22:17.530 PM MyApp[737]: CGSReenableUpdate: 2 CoreGraphics
0x00007fff8e63f6a6
_ZN16CGSUpdateManager20enable_update_legacyEv + 94
01/08/2015 4:22:17.530 PM MyApp[737]: CGSReenableUpdate: 3 CoreGraphics
0x00007fff8e63f642 CGSReenableUpdate + 35
01/08/2015 4:22:17.530 PM MyApp[737]: CGSReenableUpdate: 4 QuickLook
0x00007fff8d072051 _Z18QLTryCatchAndCrashU13block_pointerFvvE
+ 17
01/08/2015 4:22:17.530 PM MyApp[737]: CGSReenableUpdate: 5 libdispatch.dylib
0x000000010108b2bb _dispatch_call_block_and_release + 12
01/08/2015 4:22:17.550 PM MyApp[737]: CGSReenableUpdate: 6 libdispatch.dylib
0x0000000101085d43 _dispatch_client_callout + 8
01/08/2015 4:22:17.550 PM MyApp[737]: CGSReenableUpdate: 7 libdispatch.dylib
0x0000000101089fb3 _dispatch_queue_drain + 1804
01/08/2015 4:22:17.550 PM MyApp[737]: CGSReenableUpdate: 8 libdispatch.dylib
0x000000010108bfc0 _dispatch_queue_invoke + 223
01/08/2015 4:22:17.550 PM MyApp[737]: CGSReenableUpdate: 9 libdispatch.dylib
0x0000000101088f5e _dispatch_root_queue_drain + 666
01/08/2015 4:22:17.550 PM MyApp[737]: CGSReenableUpdate: 10 libdispatch.dylib
0x000000010109acd0 _dispatch_worker_thread3 + 106
01/08/2015 4:22:17.550 PM MyApp[737]: CGSReenableUpdate: 11
libsystem_pthread.dylib 0x00007fff925dd6cb _pthread_wqthread + 729
01/08/2015 4:22:17.573 PM MyApp[737]: CGSReenableUpdate: 12
libsystem_pthread.dylib 0x00007fff925db4a1 start_wqthread + 13
My application does not have a QuickLook generator. It is a Core Data based
document application with three types of documents defined.
myDocument.myapp_xml
myDocument.myapp_sqlite
myDocument.myapp_binary
I have searched the web but there is not much out there on this subject.
Does anyone have any ideas about what is going on?
Many thanks, Richard Charles
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