Hello,
I'm getting crashes in an enterprise app affecting thousands. I have so far been unable to reproduce it locally.
See the crash report below, but looking through many crash reports, I can't see a lot of correlation with what is going on with the other threads that would trigger this.
This seems to be related to https://developer.apple.com/forums/thread/655243, but I'm not sure. We have confirmed that the crash only happens on iOS 12.X and below (it does not happen in iOS 14)
I would appreciate any advice how I might investigate further.
Incident Identifier: 7A45EC93-6474-49B5-9F02-9768C2A1DD93
CrashReporter Key:	 TODO
Hardware Model:			iPhone7,1
Process:				 MyApp [2544]
Path:						/var/containers/Bundle/Application/A5B70A01-157A-410D-8114-2101D36E7EED/MyApp.app/MyApp
Identifier:			<my_identifier>
Version:				 6387
Code Type:			 ARM-64
Parent Process:	 [1]
Date/Time:			 2020-11-18 17:01:49 +0000
OS Version:			iPhone OS 12.4.8 (16G201)
Report Version:	104
Exception Type:	SIGSEGV
Exception Codes: SEGV_MAPERR at 0x282b0
Crashed Thread:	0
Thread 0 Crashed:
0	 libsystem_platform.dylib						0x00000001ab977384 _platform_strlen + 4
1	 CoreLocation												0x00000001b2b103c8 0x1b2b08000 + 33736
2	 CoreLocation												0x00000001b2b22b68 0x1b2b08000 + 109416
3	 CoreLocation												0x00000001b2b21414 0x1b2b08000 + 103444
4	 CoreLocation												0x00000001b2b0b854 0x1b2b08000 + 14420
5	 CoreFoundation											0x00000001abcf8d6c 0x1abc4e000 + 699756
6	 CoreFoundation											0x00000001abcf8670 0x1abc4e000 + 697968
7	 CoreFoundation											0x00000001abcf36b0 0x1abc4e000 + 677552
8	 CoreFoundation											0x00000001abcf2fb4 0x1abc4e000 + 675764
9	 GraphicsServices										0x00000001adef479c GSEventRunModal + 104
10	UIKitCore													 0x00000001d8554c38 UIApplicationMain + 212
11	MyApp															 0x0000000101384534 main (<compiler-generated>:0)
12	libdyld.dylib											 0x00000001ab7b68e0 start + 4
Thread 0 crashed with ARM-64 Thread State:
		pc: 0x00000001ab977384		 fp: 0x000000016ea81560		 sp: 0x000000016ea81520		 x0: 0x00000000000282b7
		x1: 0x00000000000282b0		 x2: 0x00000000000b0000		 x3: 0x0000000000000000		 x4: 0x000000016ea82320
		x5: 0x000000016ea82520		 x6: 0x0000000000000000		 x7: 0x0000000000000403		 x8: 0x551a815a96fb002e
		x9: 0x0000000000000008		x10: 0x0000000000000038		x11: 0x00000000000007fb		x12: 0x00000000000007fd
	 x13: 0x0000000000000000		x14: 0x000000004760e800		x15: 0x000000000000001d		x16: 0x00000001ab977380
	 x17: 0x0000000047600000		x18: 0x0000000000000000		x19: 0x0000000000000000		x20: 0x000000016ea82320
	 x21: 0x00000000000282b7		x22: 0x00000000000b0000		x23: 0x0000000000000004		x24: 0x0000000000000001
	 x25: 0x00000001bf04e033		x26: 0x0000000280629590		x27: 0x00000001e34ae000		x28: 0x000000028389b000
		lr: 0x00000001b2b2e7a8	 cpsr: 0x0000000060000000
lcta0707
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