weird couchbaselite crash in production

[Herman Chan]

Hi there,

We are seeing the following crash in production and don't really know what to make of it, here are the logs:

Thread : Fatal Exception: NSInternalInconsistencyException

0  CoreFoundation                 0x270eafef __exceptionPreprocess + 126

1  libobjc.A.dylib                0x35638c8b objc_exception_throw + 38

2  CoreFoundation                 0x270eaec5 +[NSException raise:format:]

3  Foundation                     0x27de9f17 -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 90

4  MyApp                          0x006b1901 

5  MyApp                          0x006b1a85 

6  MyApp                          0x006b3e8b 

7  MyApp                          0x006b3f81 

8  MyApp                          0x006bfb29 

9  MyApp                          0x006b9683 

10 MyApp                          0x006c5b77 

11 MyApp                          0x006c6cfb 

12 CFNetwork                      0x26c2ce29 __65-[NSURLConnectionInternal _withConnectionAndDelegate:onlyActive:]_block_invoke + 56

13 CFNetwork                      0x26c2cde3 -[NSURLConnectionInternal _withConnectionAndDelegate:onlyActive:] + 182

14 CFNetwork                      0x26c2ced5 -[NSURLConnectionInternal _withActiveConnectionAndDelegate:] + 36

15 CFNetwork                      0x26b40c87 ___ZN27URLConnectionClient_Classic26_delegate_didFinishLoadingEU13block_pointerFvvE_block_invoke + 78

16 CFNetwork                      0x26bde0d5 ___ZN27URLConnectionClient_Classic18_withDelegateAsyncEPKcU13block_pointerFvP16_CFURLConnectionPK33CFURLConnectionClientCurrent_VMaxE_block_invoke_2 + 60

17 CFNetwork                      0x26b31a35 RunloopBlockContext::_invoke_block(void const*, void*) + 60

18 CoreFoundation                 0x26ffac6d CFArrayApplyFunction + 36

19 CFNetwork                      0x26b318ef RunloopBlockContext::perform() + 182

20 CFNetwork                      0x26b317b5 MultiplexerSource::perform() + 216

21 CFNetwork                      0x26b31649 MultiplexerSource::_perform(void*) + 48

22 CoreFoundation                 0x270b0faf __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 14

23 CoreFoundation                 0x270b03bf __CFRunLoopDoSources0 + 218

24 CoreFoundation                 0x270aea25 __CFRunLoopRun + 772

25 CoreFoundation                 0x26ffb201 CFRunLoopRunSpecific + 476

26 CoreFoundation                 0x26ffb013 CFRunLoopRunInMode + 106

27 Foundation                     0x27d6413d -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 264

28 simplyUs                       0x006b4f05 

29 Foundation                     0x27e293bb __NSThread__main__ + 1118

30 libsystem_pthread.dylib        0x35d0ce23 _pthread_body + 138

31 libsystem_pthread.dylib        0x35d0cd97 _pthread_start + 118

32 libsystem_pthread.dylib        0x35d0ab20 thread_start + 8

which I think is a call back from this thread:

Thread : Crashed: CouchbaseLite

0  libsystem_kernel.dylib         0x35c8edf0 __pthread_kill + 8

1  libsystem_pthread.dylib        0x35d0dcc7 pthread_kill + 62

2  libsystem_c.dylib              0x35c2a909 abort + 76

3  libc++abi.dylib                0x34f589c9 __cxa_bad_cast

4  libc++abi.dylib                0x34f72671 default_unexpected_handler()

5  libobjc.A.dylib                0x35638f25 _objc_terminate() + 192

6  libc++abi.dylib                0x34f6fde3 std::__terminate(void (*)()) + 78

7  libc++abi.dylib                0x34f6f8af __cxa_rethrow + 102

8  libobjc.A.dylib                0x35638dd3 objc_exception_rethrow + 42

9  CoreFoundation                 0x26ffb29d CFRunLoopRunSpecific + 632

10 CoreFoundation                 0x26ffb013 CFRunLoopRunInMode + 106

11 Foundation                     0x27d6413d -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 264

12 MyApp                          0x006b4f05 

13 Foundation                     0x27e293bb __NSThread__main__ + 1118

14 libsystem_pthread.dylib        0x35d0ce23 _pthread_body + 138

15 libsystem_pthread.dylib        0x35d0cd97 _pthread_start + 118

we are running branch release/1.1 in prod.

Herman

[Jens Alfke]

Please file this as a bug report.

Also, is there any way you can symbolicate the backtrace? Without knowing what those “MyApp” frames really are, and without seeing the assertion-failure message that was logged, there’s not really any info to go on.

—Jens

[Herman Chan]

Hi Jens,

Ok, I am getting the log from crashlytics so if they don't have it, I won't be able to symbolize the build here.  

I guess I won't file a issue since there is nothing we can do here.

Herman