Hints for [AGSLayer dealloc] crash

Question

Hello,

On the device (iOS7/8, using ARC), I'm getting the following crash. Do you have any ideas what could cause this?

Thank you.

M.

Thread : Crashed: com.apple.root.default-qos
0  libobjc.A.dylib                0x30ea850e weak_clear_no_lock + 69
1  ???                            0x0000001c 
2  libobjc.A.dylib                0x30ea8de5 objc_object::sidetable_clearDeallocating() + 104
3  libobjc.A.dylib                0x30e97607 objc_destructInstance + 50
4  libobjc.A.dylib                0x30e9761b object_dispose + 14
5  MyiPad App                     0x003a0737 -[AGSLayer dealloc]
6  MyiPad App                     0x00410193 -[AGSTiledServiceLayer dealloc]
7  MyiPad App                     0x0040e5ad -[AGSTiledMapServiceLayer dealloc]
8  libobjc.A.dylib                0x30ea8d5f objc_object::sidetable_release(bool) + 166
9  Foundation                     0x240df94b __delayedPerformCleanup + 34
10 CoreFoundation                 0x232f585d CFRunLoopTimerInvalidate + 456
11 CoreFoundation                 0x233a0065 __CFRunLoopTimerDeallocate + 20
12 CoreFoundation                 0x232e2203 CFRelease + 494
13 CoreFoundation                 0x233a1dfb ____CFRunLoopDeallocateTimers_block_invoke + 170
14 CoreFoundation                 0x232ecd01 __CFSetApplyFunction_block_invoke + 12
15 CoreFoundation                 0x232ecb60 CFBasicHashApply + 120
16 CoreFoundation                 0x232ecaaf CFSetApplyFunction + 162
17 CoreFoundation                 0x233a186d __CFRunLoopDeallocate + 172
18 CoreFoundation                 0x232e2203 CFRelease + 494
19 CFNetwork                      0x22e4f1cf ___ZN20ClassicURLConnection6cancelEv_block_invoke_3 + 46
20 CFNetwork                      0x22e4e9b9 ___ZN25URLConnectionInstanceData15invalidateAsyncEP16dispatch_queue_sU13block_pointerFvvE_block_invoke_2 + 12
21 libdispatch.dylib              0x313ee8cb _dispatch_call_block_and_release + 10
22 libdispatch.dylib              0x313f7da3 _dispatch_root_queue_drain + 834
23 libdispatch.dylib              0x313f8cd7 _dispatch_worker_thread3 + 94
24 libsystem_pthread.dylib        0x3154fe31 _pthread_wqthread + 668

DiveshGoyal · Answer

Can you try upgrading to 10.2.4? We changed the way we deal with weak references slightly, and I'm optimistic that it will resolve this problem.

marius · Answer

Hi Gagandeep Singh,

Our application is using ESRI maps (user defined or ESRI provided maps), on top of which, using a couple of graphics layers, we're overlaying fire incident specific graphics.

There are a log of moving parts (synchronising the user maps, placing other graphics on other maps, changing/loading layers, etc). I don't steps to reproduce yet, that's why I'm asking for any hints.

This crash message was reported to Crashlytics several times. This is how I was made aware of it.

Thank you,
Marius

GagandeepSingh · Answer

Hi Marius Ursache‌,

Can you share what you are trying to do and when is the crash happening?