App Crash on nanov2_allocate_from_block

my App always crash for the first time be installed and lanunched when build with xcode 10, it works good for the next time or other。it also works good when i change back to build with xcode 9.Does anyone know why?

the crash report like:


Incident Identifier: 74775902-24B4-4268-AF14-3B13E8984562


CrashReporter Key:   ba22fb3f7b46d11f661efb00c29c6d4f6ee6568c


Hardware Model:      iPhone7,1


Process:             jiuxian [1508]


Path:                /private/var/containers/Bundle/Application/16AAAE45-1A49-4DA5-A177-8D50336169B4/jiuxian.app/jiuxian


Identifier:          com.jiuxian.jiuxian


Version:             2018083002 (8.2.6)


Code Type:           ARM-64 (Native)


Role:                Non UI


Parent Process:      launchd [1]


Coalition:           com.jiuxian.jiuxian [1278]








Date/Time:           2018-09-25 21:08:17.4492 +0800


Launch Time:         2018-09-25 21:07:57.2416 +0800


OS Version:          iPhone OS 12.0 (16A366)


Baseband Version:    7.10.00


Report Version:      104








Exception Type:  EXC_BREAKPOINT (SIGTRAP)


Exception Codes: 0x0000000000000001, 0x000000023b335770


Termination Signal: Trace/BPT trap: 5


Termination Reason: Namespace SIGNAL, Code 0x5


Terminating Process: exc handler [1508]


Triggered by Thread:  0






0   libsystem_malloc.dylib        0x000000023b335770 nanov2_allocate_from_block$VARIANT$mp + 540


1   libsystem_malloc.dylib        0x000000023b335770 nanov2_allocate_from_block$VARIANT$mp + 540


2   libsystem_malloc.dylib        0x000000023b3349cc nanov2_allocate$VARIANT$mp + 140


3   libsystem_malloc.dylib        0x000000023b3348f0 nanov2_malloc$VARIANT$mp + 60


4   libsystem_malloc.dylib        0x000000023b34399c malloc_zone_malloc + 156


5   libsystem_malloc.dylib        0x000000023b3443ac malloc + 32


6   IOKit                          0x000000023b9ea854 IOHIDEventSetAttributeData + 96


7   IOKit                          0x000000023b9ea6ec IOHIDEventCreateWithBytes + 276


8   IOKit                          0x000000023b9fe9ec IOHIDEventQueueDequeueCopy + 80


9   IOKit                          0x000000023b9f2c30 __IOHIDEventSystemClientQueueCallback + 60


10  CoreFoundation                0x000000023b6cf3e4 __CFMachPortPerform + 188


11  CoreFoundation                0x000000023b6f6c30 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 56


12  CoreFoundation                0x000000023b6f637c __CFRunLoopDoSource1 + 440


13  CoreFoundation                0x000000023b6f1134 __CFRunLoopRun + 2140


14  CoreFoundation                0x000000023b6f05b8 CFRunLoopRunSpecific + 436


15  Foundation                    0x000000023c0e46a4 -[NSRunLoop+ 34468 (NSRunLoop) runMode:beforeDate:] + 300


16  Foundation                    0x000000023c0e4550 -[NSRunLoop+ 34128 (NSRunLoop) runUntilDate:] + 148


17  UIKitCore                      0x0000000267f48ac0 -[UIEventFetcher threadMain] + 136


18  Foundation                    0x000000023c2173b0 __NSThread__start__ + 1040


19  libsystem_pthread.dylib        0x000000023b3812fc _pthread_body + 128


20  libsystem_pthread.dylib        0x000000023b38125c _pthread_start + 48


21  libsystem_pthread.dylib        0x000000023b384d08 thread_start + 4

hi, have you solved this problem? I also encountered this crash

I have the same issue.
It appears in different places.

App Crash on nanov2_allocate_from_block
 
 
Q