Hey StackOverflow detectives.
I've been pulling my hair out for a few months trying to figure out the crashes which happen at a line never exists.
In the crash log below, CustomClass.swift does exist but the line 25 doesn't.
What would be the true reason for this crash?
Hint: we run heavy processing and allocate a lot of memory (about 700MB) in the background that was written in c++, which is in OUR_CUSTOM_FRAMEWORK below.
Exception Type: EXC_CRASH (SIGABRT)Exception Codes: 0x0000000000000000, 0x0000000000000000Exception Note: EXC_CORPSE_NOTIFYTriggered by Thread: 0Thread 0 name:Thread 0 Crashed:0 libsystem_kernel.dylib 0x00000001934c6df0 __pthread_kill + 81 libsystem_pthread.dylib 0x00000001933e6930 pthread_kill + 228 (pthread.c:1458)2 libsystem_c.dylib 0x0000000193374ba4 abort + 104 (abort.c:110)3 libsystem_malloc.dylib 0x00000001933d7fdc malloc_vreport + 564 (malloc_printf.c:183)4 libsystem_malloc.dylib 0x00000001933d81a4 malloc_report + 64 (malloc_printf.c:192)5 libsystem_malloc.dylib 0x00000001933cbd1c free + 436 (malloc.c:1733)6 [OUR_CUSTOM_FRAMEWORK] 0x000000010324ccf8 0x1031a4000 + 6914487 libsystem_c.dylib 0x0000000193355164 __cxa_finalize_ranges + 416 (atexit.c:284)8 libsystem_c.dylib 0x00000001933554a0 exit + 28 (exit.c:81)9 UIKitCore 0x000000019782eb88 -[UIApplication _terminateWithStatus:] + 508 (UIApplication.m:6735)10 UIKitCore 0x0000000196f97718 -[_UISceneLifecycleMultiplexer _evalTransitionToSettings:fromSettings:forceExit:withTransitionStore:] + 128 (_UISceneLifecycleMultiplexer.m:765)11 UIKitCore 0x0000000196f9737c -[_UISceneLifecycleMultiplexer forceExitWithTransitionContext:scene:] + 220 (_UISceneLifecycleMultiplexer.m:418)12 UIKitCore 0x0000000197824ac4 -[UIApplication workspaceShouldExit:withTransitionContext:] + 216 (UIApplication.m:3725)13 FrontBoardServices 0x000000019893bcf8 -[FBSUIApplicationWorkspaceShim workspaceShouldExit:withTransitionContext:] + 88 (FBSUIApplicationWorkspace.m:144)14 FrontBoardServices 0x0000000198968d68 __83-[FBSWorkspaceScenesClient willTerminateWithTransitionContext:withAcknowledgement:]_block_invoke_2 + 80 (FBSWorkspaceScenesClient.m:281)15 FrontBoardServices 0x000000019894debc -[FBSWorkspace _calloutQueue_executeCalloutFromSource:withBlock:] + 240 (FBSWorkspace.m:357)16 FrontBoardServices 0x0000000198968cf4 __83-[FBSWorkspaceScenesClient willTerminateWithTransitionContext:withAcknowledgement:]_block_invoke + 140 (FBSWorkspaceScenesClient.m:278)17 libdispatch.dylib 0x000000019338033c _dispatch_client_callout + 20 (object.m:495)18 libdispatch.dylib 0x00000001933830d4 _dispatch_block_invoke_direct + 264 (queue.c:466)19 FrontBoardServices 0x000000019898f6c4 __FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK__ + 48 (FBSSerialQueue.m:173)20 FrontBoardServices 0x000000019898f370 -[FBSSerialQueue _queue_performNextIfPossible] + 432 (FBSSerialQueue.m:216)21 FrontBoardServices 0x000000019898f8dc -[FBSSerialQueue _performNextFromRunLoopSource] + 32 (FBSSerialQueue.m:247)22 CoreFoundation 0x000000019365baf4 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 28 (CFRunLoop.c:1922)23 CoreFoundation 0x000000019365ba48 __CFRunLoopDoSource0 + 84 (CFRunLoop.c:1956)24 CoreFoundation 0x000000019365b198 __CFRunLoopDoSources0 + 196 (CFRunLoop.c:1992)25 CoreFoundation 0x0000000193655f38 __CFRunLoopRun + 796 (CFRunLoop.c:2882)26 CoreFoundation 0x00000001936558f4 CFRunLoopRunSpecific + 480 (CFRunLoop.c:3192)27 GraphicsServices 0x000000019da6c604 GSEventRunModal + 164 (GSEvent.c:2246)28 UIKitCore 0x0000000197829358 UIApplicationMain + 1944 (UIApplication.m:4823)29 [APPNAME] 0x0000000100d45128 main + 68 (CustomClass.swift:25)30 libdyld.dylib 0x00000001934d12dc start + 4
