1 CoreFoundation _dataWrite + 144
2 CoreFoundation _CFWriteStreamWrite + 312
3 ImageIO IIOColorMap::writeToStream(__CFWriteStream*) + 128
4 ImageIO GlobalGIFInfo::writeToStream(__CFWriteStream*, CFRange const&) + 336
5 ImageIO GlobalGIFInfo::createDataRepresentation(CFRange const&) + 80
6 ImageIO IIO_Reader_GIF::createGlobalInfoData(IIOImageReadSession*) + 68
7 ImageIO IIOReadPlugin::callDecodeImage(IIODecodeParameter*, IIOImageType, __IOSurface**, __CVBuffer**, CGImageBlockSet**) + 608
8 ImageIO IIO_Reader::CopyImageBlockSetProc(void*, CGImageProvider*, CGRect, CGSize, __CFDictionary const*) + 696
9 ImageIO IIOImageProviderInfo::copyImageBlockSetWithOptions(CGImageProvider*, CGRect, CGSize, __CFDictionary const*) + 740
10 ImageIO IIOImageProviderInfo::CopyImageBlockSetWithOptions(void*, CGImageProvider*, CGRect, CGSize, __CFDictionary const*) + 920
11 QuartzCore CA::Render::copy_image(CGImage*, CGColorSpace*, unsigned int, double, double) + 3080
12 QuartzCore CA::Render::prepare_image(CGImage*, CGColorSpace*, unsigned int, double) + 24
13 QuartzCore CA::Layer::prepare_contents(CALayer*, CA::Transaction*) + 220
14 QuartzCore CA::Layer::prepare_commit(CA::Transaction*) + 284
15 QuartzCore CA::Context::commit_transaction(CA::Transaction*, double, double*) + 484
16 QuartzCore CA::Transaction::commit() + 648
17 QuartzCore CA::Transaction::flush_as_runloop_observer(bool) + 88
18 UIKitCore __UIApplicationFlushCATransaction + 52
19 UIKitCore ___setupUpdateSequence_block_invoke_2 + 332
20 UIKitCore __UIUpdateSequenceRun + 84
21 UIKitCore _schedulerStepScheduledMainSection + 172
22 UIKitCore _runloopSourceCallback + 92
23 CoreFoundation ___CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 28
24 CoreFoundation ___CFRunLoopDoSource0 + 176
25 CoreFoundation ___CFRunLoopDoSources0 + 244
26 CoreFoundation ___CFRunLoopRun + 840
27 CoreFoundation _CFRunLoopRunSpecific + 588
28 GraphicsServices 0x00000001ebf114c0 GSEventRunModal + 164
29 UIKitCore -[UIApplication _run] + 816
30 UIKitCore _UIApplicationMain + 340
My best guess is Image I/O is crashing while trying to copy an image, possibly inside of a data provider, involved in an animation that is in flight. Can you provide more information about what your app is doing at the time when this error occurs?
