Sorry I haven't gotten this bug in yet, has taken us quite some time to find steps to reproduce. Turns out it does NOT require using the iOS 9 SDK to build, just that the device has iOS 9+ installed. We also just now figured out today that having a custom keyboard activated is key to reproducing the crash, this never happens with the stock keyboard.
Will try to get a more complete report submitted soon, but wanted to get this over quickly in case it causes a light bulb to come on. - Ian On Oct 26, 2015, at 1:10 PM, Simon Fraser <simon.fra...@apple.com> wrote: We’re tracking an issue similar to this internally. Could you please file a bug report at bug reporter.apple.com, with a copy of the app and steps to reproduce? Thanks Simon On Oct 26, 2015, at 11:05 AM, Ian Ragsdale <ian.ragsd...@gmail.com> wrote: Hi all, I'm running into a strange crash when I build my application using the iOS 9 SDK (we don't see this crash in prior versions of our app). The error we see is "NSInternalInconsistencyException accessing _cachedSystemAnimationFence requires the main thread", and the stack trace is below. Any ideas on how I might track this down or avoid it? Thanks, Ian Thread : Fatal Exception: NSInternalInconsistencyException 0 CoreFoundation 6527766344 __exceptionPreprocess + 124 1 libobjc.A.dylib 6878281600 objc_exception_throw + 56 2 CoreFoundation 6527766040 +[NSException raise:format:] 3 Foundation 6543444508 -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 112 4 UIKit 6620261688 -[UIApplication _cachedSystemAnimationFenceCreatingIfNecessary:] + 200 5 UIKit 6620261884 -[UIApplication _systemAnimationFenceCreatingIfNecessary:] + 24 6 UIKit 6620609076 +[UIWindow _synchronizedDrawingFence] + 116 7 UIKit 6625701528 -[_UIRemoteViewController synchronizeAnimationsInActions:] + 124 8 UIKit 6625679332 -[_UISizeTrackingView _geometryChanges:forAncestor:] + 540 9 UIKit 6620678428 -[UIView _notifyGeometryObserversWithChangeInfo:] + 272 10 UIKit 6617880096 -[UIView setCenter:] + 408 11 UIKit 6618589764 -[UIView(Geometry) _applyISEngineLayoutValues] + 600 12 UIKit 6617592576 -[UIView(Geometry) _resizeWithOldSuperviewSize:] + 136 13 CoreFoundation 6526679440 __53-[__NSArrayM enumerateObjectsWithOptions:usingBlock:]_block_invoke + 132 14 CoreFoundation 6526679176 -[__NSArrayM enumerateObjectsWithOptions:usingBlock:] + 308 15 UIKit 6617521936 -[UIView(Geometry) resizeSubviewsWithOldSize:] + 116 16 UIKit 6618590092 -[UIView(AdditionalLayoutSupport) _is_layout] + 128 17 UIKit 6620696916 -[UIView(Hierarchy) _updateConstraintsAsNecessaryAndApplyLayoutFromEngine] + 756 18 UIKit 6617479084 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 644 19 QuartzCore 6609087320 -[CALayer layoutSublayers] + 148 20 QuartzCore 6609065828 CA::Layer::layout_if_needed(CA::Transaction*) + 292 21 QuartzCore 6609065508 CA::Layer::layout_and_display_if_needed(CA::Transaction*) + 32 22 QuartzCore 6609063104 CA::Context::commit_transaction(CA::Transaction*) + 252 23 QuartzCore 6609062408 CA::Transaction::commit() + 512 24 QuartzCore 6609035512 CA::Transaction::observer_callback(__CFRunLoopObserver*, unsigned long, void*) + 80 25 CoreFoundation 6527466448 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 32 26 CoreFoundation 6527457652 __CFRunLoopDoObservers + 372 27 CoreFoundation 6526602432 CFRunLoopRunSpecific + 416 28 WebCore 6827173196 RunWebThread(void*) + 456 29 libsystem_pthread.dylib 6888979240 _pthread_body + 156 30 libsystem_pthread.dylib 6888979084 _pthread_body 31 libsystem_pthread.dylib 6888968232 thread_start + 4 _______________________________________________ webkit-dev mailing list webkit-dev@lists.webkit.org https://lists.webkit.org/mailman/listinfo/webkit-dev
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