Crash EXC_BAD_ACCESS at KSCrashMonitor_Memory.m:573

[dannydaddy3]

Describe the bug

We use KSCrash 2.0.0-rc.4 and right now about 0.07% of all our users for the last week have this crash (we consider crash as critical starting from 0.3%)

I added stacktrace below

Steps to reproduce

All crashes happen on app launch and always in background (could be app prewarming)

Crash report or stack trace

# Downloaded at: 2024-11-13 14:47:11
# Crashed at: 2024-11-13 09:02:38
# Device model: iPhone 15 Pro Max (iPhone16,2)
# OS version: iOS 17.6.1
# Background session: true
# Jailbroken: false

EXC_BAD_ACCESS at KSCrashMonitor_Memory.m:573

#0. EXC_BAD_ACCESS 0x0000000000000001

Crashed: Thread
0  Bookmate                   0x101773268 ksmemory_notifyUnhandledFatalSignal + 12 (KSCrashMonitor_Memory.m:573)
1  Bookmate                   0x101773f38 handleSignal + 96 (KSCrashMonitor_Signal.c)
2  libsystem_platform.dylib   0x1e5876e9c _sigtramp + 56
3  libsystem_kernel.dylib     0x1d1b38ec8 mach_msg2_internal + 80
4  libsystem_kernel.dylib     0x1d1b38de0 mach_msg_overwrite + 436
5  libsystem_kernel.dylib     0x1d1b38c20 mach_msg + 24
6  CoreFoundation             0x188eb0f5c __CFRunLoopServiceMachPort + 160
7  CoreFoundation             0x188eb0600 __CFRunLoopRun + 1208
8  CoreFoundation             0x188eafcd8 CFRunLoopRunSpecific + 608
9  GraphicsServices           0x1cd8fd1a8 GSEventRunModal + 164
10 UIKitCore                  0x18b4e9ae8 -[UIApplication _run] + 888
11 UIKitCore                  0x18b59dd98 UIApplicationMain + 340
12 Bookmate                   0x10080ca60 main + 540 (<compiler-generated>)
13 (Missing)                  0x1ac687154 (Missing)

#1. com.apple.uikit.eventfetch-thread
0  libsystem_kernel.dylib    0x1d1b356c8 mach_msg2_trap + 8
1  libsystem_kernel.dylib    0x1d1b38ec8 mach_msg2_internal + 80
2  libsystem_kernel.dylib    0x1d1b38de0 mach_msg_overwrite + 436
3  libsystem_kernel.dylib    0x1d1b38c20 mach_msg + 24
4  CoreFoundation            0x188eb0f5c __CFRunLoopServiceMachPort + 160
5  CoreFoundation            0x188eb0600 __CFRunLoopRun + 1208
6  CoreFoundation            0x188eafcd8 CFRunLoopRunSpecific + 608
7  Foundation                0x187dd0b5c -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 212
8  Foundation                0x187dd09ac -[NSRunLoop(NSRunLoop) runUntilDate:] + 64
9  UIKitCore                 0x18b4fd81c -[UIEventFetcher threadMain] + 420
10 Foundation                0x187de7428 __NSThread__start__ + 732
11 libsystem_pthread.dylib   0x1e593206c _pthread_start + 136

#2. Thread
0  libsystem_kernel.dylib    0x1d1b3b2ac __semwait_signal + 8
1  libsystem_c.dylib         0x190de05f0 nanosleep + 220
2  libsystem_c.dylib         0x190e3d72c sleep + 52
3  Bookmate                  0x10176f684 monitorCachedData + 748 (KSCrashCachedData.c)
4  libsystem_pthread.dylib   0x1e593206c _pthread_start + 136

#3. KSCrash Exception Handler (Secondary)
0  libsystem_kernel.dylib    0x1d1b356c8 mach_msg2_trap + 8
1  libsystem_kernel.dylib    0x1d1b38ec8 mach_msg2_internal + 80
2  libsystem_kernel.dylib    0x1d1b38de0 mach_msg_overwrite + 436
3  libsystem_kernel.dylib    0x1d1b38c20 mach_msg + 24
4  Bookmate                  0x1017721f0 handleExceptions + 164 (KSCrashMonitor_MachException.c:277)
5  libsystem_pthread.dylib   0x1e593206c _pthread_start + 136

#4. KSCrash Exception Handler (Primary)
0  (Missing)   0x000000000 (Missing)

#5. com.apple.NSURLConnectionLoader
0  libsystem_kernel.dylib    0x1d1b356c8 mach_msg2_trap + 8
1  libsystem_kernel.dylib    0x1d1b38ec8 mach_msg2_internal + 80
2  libsystem_kernel.dylib    0x1d1b38de0 mach_msg_overwrite + 436
3  libsystem_kernel.dylib    0x1d1b38c20 mach_msg + 24
4  CoreFoundation            0x188eb0f5c __CFRunLoopServiceMachPort + 160
5  CoreFoundation            0x188eb0600 __CFRunLoopRun + 1208
6  CoreFoundation            0x188eafcd8 CFRunLoopRunSpecific + 608
7  CFNetwork                 0x18a090c7c (Missing)
8  Foundation                0x187de7428 __NSThread__start__ + 732
9  libsystem_pthread.dylib   0x1e593206c _pthread_start + 136

#6. Thread
0  libsystem_pthread.dylib   0x1e592d0c4 start_wqthread + 0

#7. Thread
0  libsystem_pthread.dylib   0x1e592d0c4 start_wqthread + 0

#8. Thread
0  libsystem_pthread.dylib   0x1e592d0c4 start_wqthread + 0

#9. Thread
0  libsystem_pthread.dylib   0x1e592d0c4 start_wqthread + 0

#10. Thread
0  libsystem_pthread.dylib   0x1e592d0c4 start_wqthread + 0

#11. Thread
0  libsystem_kernel.dylib    0x1d1b3565c semaphore_timedwait_trap + 8
1  libdispatch.dylib         0x190d873ec _dispatch_sema4_timedwait + 64
2  libdispatch.dylib         0x190d879e8 _dispatch_semaphore_wait_slow + 76
3  libdispatch.dylib         0x190d98668 _dispatch_worker_thread + 328
4  libsystem_pthread.dylib   0x1e593206c _pthread_start + 136

#12. Thread
0  libsystem_kernel.dylib    0x1d1b3565c semaphore_timedwait_trap + 8
1  libdispatch.dylib         0x190d873ec _dispatch_sema4_timedwait + 64
2  libdispatch.dylib         0x190d879e8 _dispatch_semaphore_wait_slow + 76
3  libdispatch.dylib         0x190d98668 _dispatch_worker_thread + 328
4  libsystem_pthread.dylib   0x1e593206c _pthread_start + 136

#13. Thread
0  libsystem_kernel.dylib    0x1d1b3565c semaphore_timedwait_trap + 8
1  libdispatch.dylib         0x190d873ec _dispatch_sema4_timedwait + 64
2  libdispatch.dylib         0x190d879e8 _dispatch_semaphore_wait_slow + 76
3  libdispatch.dylib         0x190d98668 _dispatch_worker_thread + 328
4  libsystem_pthread.dylib   0x1e593206c _pthread_start + 136

KSCrash version

2.0.0-rc.4

Operating System

iOS

OS version

iOS 17.6.1

Device model

iPhone 15 Pro Max

Xcode version

Xcode 15.4

Additional context

No response