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Looking at your crash report, I see that the process crashed because it accesses unmapped memory:
Exception Type: EXC_BAD_ACCESS (SIGILL)
Exception Subtype: KERN_INVALID_ADDRESS at 0x000000016d3d93b0
The crashing thread backtrace looks like this:
Thread 0 Crashed:
0 MyGameiOS … 0x1028c4000 + 764260
1 MyGameiOS … 0x1028c4000 + 8565972
2 MyGameiOS … 0x1028c4000 + 24000068
3 MyGameiOS … 0x1028c4000 + 59941520
4 QuartzCore … CA::Display::DisplayLinkItem::dispatch_(CA::SignPost::Interval<(CA::SignPost::CAEventCod…
5 QuartzCore … CA::Display::DisplayLink::dispatch_items(unsigned long long, unsigned long long, unsigne…
6 QuartzCore … CA::Display::DisplayLink::dispatch_deferred_display_links(unsigned int) + 352 (CADisplay…
7 UIKitCore … _UIUpdateSequenceRun + 84 (_UIUpdateSequence.mm:136)
8 UIKitCore … schedulerStepScheduledMainSection + 172 (_UIUpdateScheduler.m:1171)
9 UIKitCore … runloopSourceCallback + 92 (_UIUpdateScheduler.m:1334)
10 CoreFoundation … __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 28 (CFRunLoop.c:1970)
11 CoreFoundation … __CFRunLoopDoSource0 + 176 (CFRunLoop.c:2014)
12 CoreFoundation … __CFRunLoopDoSources0 + 244 (CFRunLoop.c:2051)
13 CoreFoundation … __CFRunLoopRun + 840 (CFRunLoop.c:2969)
14 CoreFoundation … CFRunLoopRunSpecific + 588 (CFRunLoop.c:3434)
15 GraphicsServices … GSEventRunModal + 164 (GSEvent.c:2196)
16 UIKitCore … -[UIApplication _run] + 816 (UIApplication.m:3846)
17 UIKitCore … UIApplicationMain + 340 (UIApplication.m:5503)
18 MyGameiOS … 0x1028c4000 + 57228016
19 MyGameiOS … 0x1028c4000 + 9503152
20 MyGameiOS … 0x1028c4000 + 56185028
21 MyGameiOS … 0x1028c4000 + 24385964
22 MyGameiOS … 0x1028c4000 + 58824544
23 MyGameiOS … 0x1028c4000 + 58461856
24 MyGameiOS … 0x1028c4000 + 58487588
25 MyGameiOS … 0x1028c4000 + 58846524
26 MyGameiOS … 0x1028c4000 + 57271876
27 MyGameiOS … 0x1028c4000 + 59818024
28 dyld … start + 2724 (dyldMain.cpp:1338)
Frames 28 through 14 are typical of an app’s main thread. Frames 13 through 10 show the run loop running a run loop source. Frames 9 through 4 suggest that this is a CADisplayLink. Frames 3 through 0 are your code. None of your frames are symbolicated, so it’s hard to tell what’s going on.
So, my best guess here is that your have a CADisplayLink and somewhere in its callback you’re crashing due to unmapped memory. To make further process you’re gonna need to symbolicate your frames in the crash report. See Adding identifiable symbol names to a crash report.
Share and Enjoy
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Quinn “The Eskimo!” @ Developer Technical Support @ Apple
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