Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/Mecha.exe
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/FSharp.Core.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/Xamarin.Mac.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/System.dll [External]
Resolved pending breakpoint for 'AppKit.NSApplication.Main(string[])' to /Users/builder/data/lanes/3821/979cd550/source/xamarin-macios/src/AppKit/NSApplication.cs:85 [0x00000].
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/System.Net.Http.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/Ooui.dll
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/System.Numerics.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/System.Xml.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/System.Core.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/NGraphics.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/System.Collections.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/System.Runtime.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/System.ComponentModel.Composition.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/System.Xml.XDocument.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/System.Xml.Linq.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/System.Runtime.Serialization.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/System.ServiceModel.Internals.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/System.Text.RegularExpressions.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/System.IO.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/System.Runtime.Serialization.Primitives.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/System.Runtime.Extensions.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/System.Globalization.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/System.Threading.Tasks.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/System.Linq.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/System.Diagnostics.Debug.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/System.Text.Encoding.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/NGraphics.Mac.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/Mecha.Core.dll
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/Csg.dll
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/FsLexYacc.Runtime.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/System.Threading.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/System.Numerics.Vectors.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/System.Resources.ResourceManager.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/System.Xml.ReaderWriter.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/System.Reflection.dll [External]
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/BoxEditor.dll
Loaded assembly: /Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MonoBundle/System.Collections.Immutable.dll [External]
Loaded assembly: /Library/Frameworks/Xamarin.Inspector.framework/Versions/Current/Agents/Xamarin.Inspector.Mac.Mobile.dll [External]
Thread started:  #3
Thread started: <Thread Pool> #4
Thread started: <Thread Pool> #5
Thread started: <Thread Pool> #6
Thread started: <Thread Pool> #7
Thread started: <Thread Pool> #8
MAKE SCENE GEOMETRY FOR {MemberId = EvaluatedMemberInstanceId (MemberId "Box",0);
 Transform =
  EvaluatedTransform
    [|1.0; 0.0; 0.0; 0.0; 0.0; 1.0; 0.0; 0.0; 0.0; 0.0; 1.0; 0.0; 36.32415867;
      14.93941689; 0.0; 1.0|];
 Geometry = EvaluatedBox (30.0,20.0,10.0,EvaluatedPlasticMaterial);}
MAKE SCENE GEOMETRY FOR {MemberId = EvaluatedMemberInstanceId (MemberId "Sphere",0);
 Transform =
  EvaluatedTransform
    [|1.0; 0.0; 0.0; 0.0; 0.0; 1.0; 0.0; 0.0; 0.0; 0.0; 1.0; 0.0; -22.08639455;
      -23.75405121; 0.0; 1.0|];
 Geometry = EvaluatedSphere (10.0,EvaluatedPlasticMaterial);}
MAKE SCENE GEOMETRY FOR {MemberId = EvaluatedMemberInstanceId (MemberId "Cylinder",0);
 Transform =
  EvaluatedTransform
    [|1.0; 0.0; 0.0; 0.0; 0.0; 1.0; 0.0; 0.0; 0.0; 0.0; 1.0; 0.0; 45.13069701;
      -14.40848923; 0.0; 1.0|];
 Geometry = EvaluatedCylinder (6.0,20.0,EvaluatedPlasticMaterial);}
Thread started:  #9
Thread started:  #10
Thread started:  #11
Thread started:  #12
Thread started: <Thread Pool> #13
Thread started: <Thread Pool> #14
Thread started: <Thread Pool> #15
Thread started: <Thread Pool> #16
Thread started: <Thread Pool> #17
Thread started: <Thread Pool> #18
Thread started:  #19
Stacktrace:

  at <unknown> <0xffffffff>
  at (wrapper managed-to-native) Foundation.NSObject.xamarin_release_managed_ref (intptr,Foundation.NSObject) <IL 0x00008, 0x000c1>
  at Foundation.NSObject.ReleaseManagedRef () [0x00008] in /Users/builder/data/lanes/3821/979cd550/source/xamarin-macios/src/Foundation/NSObject2.cs:208
  at Foundation.NSObject.Dispose (bool) [0x00036] in /Users/builder/data/lanes/3821/979cd550/source/xamarin-macios/src/Foundation/NSObject2.cs:730
  at Foundation.NSObject.Dispose () [0x00003] in /Users/builder/data/lanes/3821/979cd550/source/xamarin-macios/src/Foundation/NSObject2.cs:133
  at ObjCRuntime.Runtime.ThreadPoolDispatcher (System.Func`1<bool>) [0x0001a] in /Users/builder/data/lanes/3821/979cd550/source/xamarin-macios/src/ObjCRuntime/Runtime.cs:237
  at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback () [0x0000c] in /Users/builder/data/lanes/3821/979cd550/source/xamarin-macios/_mac-build/Library/Frameworks/Xamarin.Mac.framework/Versions/git/src/mono/mcs/class/referencesource/mscorlib/system/threading/threadpool.cs:1206
  at (wrapper runtime-invoke) <Module>.runtime_invoke_bool (object,intptr,intptr,intptr) <IL 0x0001f, 0x0015d>

Native stacktrace:


Debug info from gdb:

(lldb) command source -s 0 '/tmp/mono-gdb-commands.wmmn4p'
Executing commands in '/tmp/mono-gdb-commands.wmmn4p'.
(lldb) process attach --pid 13406
Process 13406 stopped
* thread #1: tid = 0x3f6501, 0x00007fffd50fccba libsystem_kernel.dylib`__psynch_mutexwait + 10, name = 'tid_150b', queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
    frame #0: 0x00007fffd50fccba libsystem_kernel.dylib`__psynch_mutexwait + 10
libsystem_kernel.dylib`__psynch_mutexwait:
->  0x7fffd50fccba <+10>: jae    0x7fffd50fccc4            ; <+20>
    0x7fffd50fccbc <+12>: movq   %rax, %rdi
    0x7fffd50fccbf <+15>: jmp    0x7fffd50f5d6f            ; cerror_nocancel
    0x7fffd50fccc4 <+20>: retq

Executable module set to "/Users/fak/Dropbox/Projects/Mecha.Try25/mecha-ui/Mecha.Mac/bin/Debug/Mecha.app/Contents/MacOS/Mecha".
Architecture set to: x86_64h-apple-macosx.
(lldb) thread list
Process 13406 stopped
* thread #1: tid = 0x3f6501, 0x00007fffd50fccba libsystem_kernel.dylib`__psynch_mutexwait + 10, name = 'tid_150b', queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
  thread #2: tid = 0x3f650a, 0x00007fffd50fd4e6 libsystem_kernel.dylib`__workq_kernreturn + 10, name = 'tid_807'
  thread #3: tid = 0x3f650b, 0x00007fffd50fd4e6 libsystem_kernel.dylib`__workq_kernreturn + 10, name = 'tid_60b'
  thread #4: tid = 0x3f6513, 0x00007fffd50fcc8a libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'SGen worker'
  thread #5: tid = 0x3f651c, 0x00007fffd50f5456 libsystem_kernel.dylib`semaphore_wait_trap + 10, name = 'Finalizer'
  thread #6: tid = 0x3f651d, 0x00007fffd50fce8e libsystem_kernel.dylib`__recvfrom + 10, name = 'Debugger agent'
  thread #7: tid = 0x3f6564, 0x00007fffd50fcc8a libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'tid_ad0f'
  thread #8: tid = 0x3f6565, 0x00007fffd50fd486 libsystem_kernel.dylib`__wait4 + 10, name = 'Threadpool worker'
  thread #9: tid = 0x3f6566, 0x00007fffd50fccba libsystem_kernel.dylib`__psynch_mutexwait + 10, name = 'Threadpool worker'
  thread #10: tid = 0x3f6570, 0x00007fffd50fccba libsystem_kernel.dylib`__psynch_mutexwait + 10, name = 'Threadpool worker'
  thread #11: tid = 0x3f6571, 0x00007fffd50fccba libsystem_kernel.dylib`__psynch_mutexwait + 10, name = 'Threadpool worker'
  thread #12: tid = 0x3f6575, 0x00007fffd50fd4e6 libsystem_kernel.dylib`__workq_kernreturn + 10, name = 'tid_d903'
  thread #13: tid = 0x3f6576, 0x00007fffd50fd4e6 libsystem_kernel.dylib`__workq_kernreturn + 10, name = 'tid_de03'
  thread #14: tid = 0x3f657b, 0x00007fffd50fcc8a libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'CVDisplayLink'
  thread #15: tid = 0x3f657c, 0x00007fffd50f541a libsystem_kernel.dylib`mach_msg_trap + 10, name = 'com.apple.NSEventThread'
  thread #16: tid = 0x3f6601, 0x00007fffd50fcc8a libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'Threadpool worker'
  thread #17: tid = 0x3f6650, 0x00007fffd50fcc8a libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'Threadpool worker'
  thread #18: tid = 0x3f6a33, 0x00007fffd50fccba libsystem_kernel.dylib`__psynch_mutexwait + 10, name = 'Threadpool worker'
  thread #19: tid = 0x3f6ab2, 0x00007fffd50fcc8a libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'Threadpool worker'
  thread #20: tid = 0x3f6ab3, 0x00007fffd50fcc8a libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'Threadpool worker'
  thread #21: tid = 0x3f6ab4, 0x00007fffd50fccba libsystem_kernel.dylib`__psynch_mutexwait + 10, name = 'Threadpool worker'
(lldb) thread backtrace all
* thread #1: tid = 0x3f6501, 0x00007fffd50fccba libsystem_kernel.dylib`__psynch_mutexwait + 10, name = 'tid_150b', queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
  * frame #0: 0x00007fffd50fccba libsystem_kernel.dylib`__psynch_mutexwait + 10
    frame #1: 0x00007fffd51e4f7a libsystem_pthread.dylib`_pthread_mutex_lock_wait + 100
    frame #2: 0x00007fffd51e26bd libsystem_pthread.dylib`_pthread_mutex_lock_slow + 285
    frame #3: 0x00000001002a55a4 Mecha`::xamarin_framework_peer_lock() + 20 at runtime.m:340
    frame #4: 0x00000001002a7145 Mecha`::xamarin_release_managed_ref(self=0x00006080004428e0, managed_obj=0x0000000100c27740) + 149 at runtime.m:1751
    frame #5: 0x000000010aea6412
    frame #6: 0x000000010ea3beab

  thread #2: tid = 0x3f650a, 0x00007fffd51e4214 libsystem_pthread.dylib`start_wqthread, name = 'tid_807'
    frame #0: 0x00007fffd51e4214 libsystem_pthread.dylib`start_wqthread

  thread #3: tid = 0x3f650b, 0x00007fffd50fd4e6 libsystem_kernel.dylib`__workq_kernreturn + 10, name = 'tid_60b'
    frame #0: 0x00007fffd50fd4e6 libsystem_kernel.dylib`__workq_kernreturn + 10
    frame #1: 0x00007fffd51e4632 libsystem_pthread.dylib`_pthread_wqthread + 1023
    frame #2: 0x00007fffd51e4221 libsystem_pthread.dylib`start_wqthread + 13

  thread #4: tid = 0x3f6513, 0x00007fffd50fcc8a libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'SGen worker'
    frame #0: 0x00007fffd50fcc8a libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #1: 0x00007fffd51e597a libsystem_pthread.dylib`_pthread_cond_wait + 712
    frame #2: 0x00000001004fd4ec Mecha`thread_func [inlined] mono_os_cond_wait(mutex=0x00000001006278e0) + 15 at mono-os-mutex.h:107 [opt]
    frame #3: 0x00000001004fd4dd Mecha`thread_func(thread_data=0x0000000000000000) + 333 at sgen-thread-pool.c:110 [opt]
    frame #4: 0x00007fffd51e4abb libsystem_pthread.dylib`_pthread_body + 180
    frame #5: 0x00007fffd51e4a07 libsystem_pthread.dylib`_pthread_start + 286
    frame #6: 0x00007fffd51e4231 libsystem_pthread.dylib`thread_start + 13

  thread #5: tid = 0x3f651c, 0x00007fffd50f5456 libsystem_kernel.dylib`semaphore_wait_trap + 10, name = 'Finalizer'
    frame #0: 0x00007fffd50f5456 libsystem_kernel.dylib`semaphore_wait_trap + 10
    frame #1: 0x000000010040350b Mecha`finalizer_thread [inlined] mono_os_sem_wait(flags=MONO_SEM_FLAGS_ALERTABLE) + 11 at mono-os-semaphore.h:72 [opt]
    frame #2: 0x0000000100403500 Mecha`finalizer_thread + 11 at mono-coop-semaphore.h:40 [opt]
    frame #3: 0x00000001004034f5 Mecha`finalizer_thread(unused=<unavailable>) + 181 at gc.c:761 [opt]
    frame #4: 0x00000001004ba31e Mecha`start_wrapper [inlined] start_wrapper_internal + 508 at threads.c:740 [opt]
    frame #5: 0x00000001004ba122 Mecha`start_wrapper(data=<unavailable>) + 50 at threads.c:788 [opt]
    frame #6: 0x0000000100527936 Mecha`inner_start_thread(arg=<unavailable>) + 406 at mono-threads-posix.c:92 [opt]
    frame #7: 0x00007fffd51e4abb libsystem_pthread.dylib`_pthread_body + 180
    frame #8: 0x00007fffd51e4a07 libsystem_pthread.dylib`_pthread_start + 286
    frame #9: 0x00007fffd51e4231 libsystem_pthread.dylib`thread_start + 13

  thread #6: tid = 0x3f651d, 0x00007fffd50fce8e libsystem_kernel.dylib`__recvfrom + 10, name = 'Debugger agent'
    frame #0: 0x00007fffd50fce8e libsystem_kernel.dylib`__recvfrom + 10
    frame #1: 0x00000001002fb995 Mecha`socket_transport_recv(buf="��", len=11) + 149 at debugger-agent.c:1130 [opt]
    frame #2: 0x00000001002e4566 Mecha`debugger_thread [inlined] transport_recv(len=11) + 27 at debugger-agent.c:1536 [opt]
    frame #3: 0x00000001002e454b Mecha`debugger_thread(arg=<unavailable>) + 635 at debugger-agent.c:9847 [opt]
    frame #4: 0x0000000100527936 Mecha`inner_start_thread(arg=<unavailable>) + 406 at mono-threads-posix.c:92 [opt]
    frame #5: 0x00007fffd51e4abb libsystem_pthread.dylib`_pthread_body + 180
    frame #6: 0x00007fffd51e4a07 libsystem_pthread.dylib`_pthread_start + 286
    frame #7: 0x00007fffd51e4231 libsystem_pthread.dylib`thread_start + 13

  thread #7: tid = 0x3f6564, 0x00007fffd50fcc8a libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'tid_ad0f'
    frame #0: 0x00007fffd50fcc8a libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #1: 0x00007fffd51e597a libsystem_pthread.dylib`_pthread_cond_wait + 712
    frame #2: 0x000000010052b331 Mecha`mono_thread_info_sleep [inlined] mono_os_cond_timedwait + 125 at mono-os-mutex.h:136 [opt]
    frame #3: 0x000000010052b2b4 Mecha`mono_thread_info_sleep + 9 at mono-coop-mutex.h:107 [opt]
    frame #4: 0x000000010052b2ab Mecha`mono_thread_info_sleep [inlined] sleep_interruptable(ms=500, alerted=0x000070000ffaed90) + 103 at mono-threads.c:1213 [opt]
    frame #5: 0x000000010052b244 Mecha`mono_thread_info_sleep(ms=500, alerted=0x000070000ffaed90) + 404 at mono-threads.c:1245 [opt]
    frame #6: 0x00000001004b0ee2 Mecha`monitor_thread + 162 at threadpool-ms.c:905 [opt]
    frame #7: 0x00000001004ba31e Mecha`start_wrapper [inlined] start_wrapper_internal + 508 at threads.c:740 [opt]
    frame #8: 0x00000001004ba122 Mecha`start_wrapper(data=<unavailable>) + 50 at threads.c:788 [opt]
    frame #9: 0x0000000100527936 Mecha`inner_start_thread(arg=<unavailable>) + 406 at mono-threads-posix.c:92 [opt]
    frame #10: 0x00007fffd51e4abb libsystem_pthread.dylib`_pthread_body + 180
    frame #11: 0x00007fffd51e4a07 libsystem_pthread.dylib`_pthread_start + 286
    frame #12: 0x00007fffd51e4231 libsystem_pthread.dylib`thread_start + 13

  thread #8: tid = 0x3f6565, 0x00007fffd50fd486 libsystem_kernel.dylib`__wait4 + 10, name = 'Threadpool worker'
    frame #0: 0x00007fffd50fd486 libsystem_kernel.dylib`__wait4 + 10
    frame #1: 0x00000001003a05f1 Mecha`mono_handle_native_sigsegv(signal=<unavailable>, ctx=<unavailable>, info=<unavailable>) + 433 at mini-exceptions.c:2427 [opt]
    frame #2: 0x000000010030ed9a Mecha`mono_arch_handle_altstack_exception(sigctx=0x000000010aebcf48, siginfo=<unavailable>, fault_addr=<unavailable>, stack_ovf=0) + 90 at exceptions-amd64.c:795 [opt]
    frame #3: 0x00000001003adaa8 Mecha`mono_sigsegv_signal_handler(_dummy=<unavailable>, _info=<unavailable>, context=<unavailable>) + 440 at mini-runtime.c:2865 [opt]
    frame #4: 0x00007fffd51dabba libsystem_platform.dylib`_sigtramp + 26
    frame #5: 0x00007fffd46e4f70 libobjc.A.dylib`objc_release + 32
    frame #6: 0x00007fffd46e5e8d libobjc.A.dylib`(anonymous namespace)::AutoreleasePoolPage::pop(void*) + 781
    frame #7: 0x00007fffbff4d496 CoreFoundation`_CFAutoreleasePoolPop + 22
    frame #8: 0x00007fffc198b8f0 Foundation`-[NSAutoreleasePool release] + 146
    frame #9: 0x00000001002a7166 Mecha`::xamarin_release_managed_ref(self=0x00006000004419b0, managed_obj=0x0000000100c20640) + 182 at runtime.m:1755
    frame #10: 0x000000010aea6412
    frame #11: 0x000000010ae9d78b
    frame #12: 0x00000001003b09e0 Mecha`mono_jit_runtime_invoke(method=<unavailable>, obj=<unavailable>, params=0x0000000000000000, exc=<unavailable>, error=<unavailable>) + 2272 at mini-runtime.c:2547 [opt]
    frame #13: 0x0000000100461a68 Mecha`do_runtime_invoke(method=0x00007fd32f045560, obj=0x0000000000000000, params=0x0000000000000000, exc=0x00007000101b1d18, error=0x00007000101b1ca8) + 88 at object.c:2949 [opt]
    frame #14: 0x00000001004b1b67 Mecha`worker_thread(data=<unavailable>) + 1831 at threadpool-ms.c:657 [opt]
    frame #15: 0x00000001004ba31e Mecha`start_wrapper [inlined] start_wrapper_internal + 508 at threads.c:740 [opt]
    frame #16: 0x00000001004ba122 Mecha`start_wrapper(data=<unavailable>) + 50 at threads.c:788 [opt]
    frame #17: 0x0000000100527936 Mecha`inner_start_thread(arg=<unavailable>) + 406 at mono-threads-posix.c:92 [opt]
    frame #18: 0x00007fffd51e4abb libsystem_pthread.dylib`_pthread_body + 180
    frame #19: 0x00007fffd51e4a07 libsystem_pthread.dylib`_pthread_start + 286
    frame #20: 0x00007fffd51e4231 libsystem_pthread.dylib`thread_start + 13

  thread #9: tid = 0x3f6566, 0x00007fffd50fccba libsystem_kernel.dylib`__psynch_mutexwait + 10, name = 'Threadpool worker'
    frame #0: 0x00007fffd50fccba libsystem_kernel.dylib`__psynch_mutexwait + 10
    frame #1: 0x00007fffd51e4f7a libsystem_pthread.dylib`_pthread_mutex_lock_wait + 100
    frame #2: 0x00007fffd51e26bd libsystem_pthread.dylib`_pthread_mutex_lock_slow + 285
    frame #3: 0x00000001002a55a4 Mecha`::xamarin_framework_peer_lock() + 20 at runtime.m:340
    frame #4: 0x00000001002a7145 Mecha`::xamarin_release_managed_ref(self=0x000060800024f7b0, managed_obj=0x0000000100c19350) + 149 at runtime.m:1751
    frame #5: 0x000000010aea6412
    frame #6: 0x000000010ae9d78b
    frame #7: 0x00000001003b09e0 Mecha`mono_jit_runtime_invoke(method=<unavailable>, obj=<unavailable>, params=0x0000000000000000, exc=<unavailable>, error=<unavailable>) + 2272 at mini-runtime.c:2547 [opt]
    frame #8: 0x0000000100461a68 Mecha`do_runtime_invoke(method=0x00007fd32f045560, obj=0x0000000000000000, params=0x0000000000000000, exc=0x00007000103b4d18, error=0x00007000103b4ca8) + 88 at object.c:2949 [opt]
    frame #9: 0x00000001004b1b67 Mecha`worker_thread(data=<unavailable>) + 1831 at threadpool-ms.c:657 [opt]
    frame #10: 0x00000001004ba31e Mecha`start_wrapper [inlined] start_wrapper_internal + 508 at threads.c:740 [opt]
    frame #11: 0x00000001004ba122 Mecha`start_wrapper(data=<unavailable>) + 50 at threads.c:788 [opt]
    frame #12: 0x0000000100527936 Mecha`inner_start_thread(arg=<unavailable>) + 406 at mono-threads-posix.c:92 [opt]
    frame #13: 0x00007fffd51e4abb libsystem_pthread.dylib`_pthread_body + 180
    frame #14: 0x00007fffd51e4a07 libsystem_pthread.dylib`_pthread_start + 286
    frame #15: 0x00007fffd51e4231 libsystem_pthread.dylib`thread_start + 13

  thread #10: tid = 0x3f6570, 0x00007fffd50fccba libsystem_kernel.dylib`__psynch_mutexwait + 10, name = 'Threadpool worker'
    frame #0: 0x00007fffd50fccba libsystem_kernel.dylib`__psynch_mutexwait + 10
    frame #1: 0x00007fffd51e4f7a libsystem_pthread.dylib`_pthread_mutex_lock_wait + 100
    frame #2: 0x00007fffd51e26bd libsystem_pthread.dylib`_pthread_mutex_lock_slow + 285
    frame #3: 0x00000001002a55a4 Mecha`::xamarin_framework_peer_lock() + 20 at runtime.m:340
    frame #4: 0x00000001002a7145 Mecha`::xamarin_release_managed_ref(self=0x000060000024bbb0, managed_obj=0x0000000100c0d698) + 149 at runtime.m:1751
    frame #5: 0x000000010aea6412
    frame #6: 0x000000010ae9d78b
    frame #7: 0x00000001003b09e0 Mecha`mono_jit_runtime_invoke(method=<unavailable>, obj=<unavailable>, params=0x0000000000000000, exc=<unavailable>, error=<unavailable>) + 2272 at mini-runtime.c:2547 [opt]
    frame #8: 0x0000000100461a68 Mecha`do_runtime_invoke(method=0x00007fd32f045560, obj=0x0000000000000000, params=0x0000000000000000, exc=0x00007000105b7d18, error=0x00007000105b7ca8) + 88 at object.c:2949 [opt]
    frame #9: 0x00000001004b1b67 Mecha`worker_thread(data=<unavailable>) + 1831 at threadpool-ms.c:657 [opt]
    frame #10: 0x00000001004ba31e Mecha`start_wrapper [inlined] start_wrapper_internal + 508 at threads.c:740 [opt]
    frame #11: 0x00000001004ba122 Mecha`start_wrapper(data=<unavailable>) + 50 at threads.c:788 [opt]
    frame #12: 0x0000000100527936 Mecha`inner_start_thread(arg=<unavailable>) + 406 at mono-threads-posix.c:92 [opt]
    frame #13: 0x00007fffd51e4abb libsystem_pthread.dylib`_pthread_body + 180
    frame #14: 0x00007fffd51e4a07 libsystem_pthread.dylib`_pthread_start + 286
    frame #15: 0x00007fffd51e4231 libsystem_pthread.dylib`thread_start + 13

  thread #11: tid = 0x3f6571, 0x00007fffd50fccba libsystem_kernel.dylib`__psynch_mutexwait + 10, name = 'Threadpool worker'
    frame #0: 0x00007fffd50fccba libsystem_kernel.dylib`__psynch_mutexwait + 10
    frame #1: 0x00007fffd51e4f7a libsystem_pthread.dylib`_pthread_mutex_lock_wait + 100
    frame #2: 0x00007fffd51e26bd libsystem_pthread.dylib`_pthread_mutex_lock_slow + 285
    frame #3: 0x00000001002a55a4 Mecha`::xamarin_framework_peer_lock() + 20 at runtime.m:340
    frame #4: 0x00000001002a7145 Mecha`::xamarin_release_managed_ref(self=0x000060000044c8a0, managed_obj=0x0000000100c02010) + 149 at runtime.m:1751
    frame #5: 0x000000010aea6412
    frame #6: 0x000000010ae9d78b
    frame #7: 0x00000001003b09e0 Mecha`mono_jit_runtime_invoke(method=<unavailable>, obj=<unavailable>, params=0x0000000000000000, exc=<unavailable>, error=<unavailable>) + 2272 at mini-runtime.c:2547 [opt]
    frame #8: 0x0000000100461a68 Mecha`do_runtime_invoke(method=0x00007fd32f045560, obj=0x0000000000000000, params=0x0000000000000000, exc=0x00007000107bad18, error=0x00007000107baca8) + 88 at object.c:2949 [opt]
    frame #9: 0x00000001004b1b67 Mecha`worker_thread(data=<unavailable>) + 1831 at threadpool-ms.c:657 [opt]
    frame #10: 0x00000001004ba31e Mecha`start_wrapper [inlined] start_wrapper_internal + 508 at threads.c:740 [opt]
    frame #11: 0x00000001004ba122 Mecha`start_wrapper(data=<unavailable>) + 50 at threads.c:788 [opt]
    frame #12: 0x0000000100527936 Mecha`inner_start_thread(arg=<unavailable>) + 406 at mono-threads-posix.c:92 [opt]
    frame #13: 0x00007fffd51e4abb libsystem_pthread.dylib`_pthread_body + 180
    frame #14: 0x00007fffd51e4a07 libsystem_pthread.dylib`_pthread_start + 286
    frame #15: 0x00007fffd51e4231 libsystem_pthread.dylib`thread_start + 13

  thread #12: tid = 0x3f6575, 0x00007fffd50fd4e6 libsystem_kernel.dylib`__workq_kernreturn + 10, name = 'tid_d903'
    frame #0: 0x00007fffd50fd4e6 libsystem_kernel.dylib`__workq_kernreturn + 10
    frame #1: 0x00007fffd51e47c5 libsystem_pthread.dylib`_pthread_wqthread + 1426
    frame #2: 0x00007fffd51e4221 libsystem_pthread.dylib`start_wqthread + 13

  thread #13: tid = 0x3f6576, 0x00007fffd50fd4e6 libsystem_kernel.dylib`__workq_kernreturn + 10, name = 'tid_de03'
    frame #0: 0x00007fffd50fd4e6 libsystem_kernel.dylib`__workq_kernreturn + 10
    frame #1: 0x00007fffd51e4632 libsystem_pthread.dylib`_pthread_wqthread + 1023
    frame #2: 0x00007fffd51e4221 libsystem_pthread.dylib`start_wqthread + 13

  thread #14: tid = 0x3f657b, 0x00007fffd50fcc8a libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'CVDisplayLink'
    frame #0: 0x00007fffd50fcc8a libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #1: 0x00007fffd51e59b3 libsystem_pthread.dylib`_pthread_cond_wait + 769
    frame #2: 0x00007fffc163ad33 CoreVideo`CVDisplayLink::waitUntil(unsigned long long) + 233
    frame #3: 0x00007fffc163ab1e CoreVideo`CVDisplayLink::runIOThread() + 520
    frame #4: 0x00007fffd51e4abb libsystem_pthread.dylib`_pthread_body + 180
    frame #5: 0x00007fffd51e4a07 libsystem_pthread.dylib`_pthread_start + 286
    frame #6: 0x00007fffd51e4231 libsystem_pthread.dylib`thread_start + 13

  thread #15: tid = 0x3f657c, 0x00007fffd50f541a libsystem_kernel.dylib`mach_msg_trap + 10, name = 'com.apple.NSEventThread'
    frame #0: 0x00007fffd50f541a libsystem_kernel.dylib`mach_msg_trap + 10
    frame #1: 0x00007fffd50f4867 libsystem_kernel.dylib`mach_msg + 55
    frame #2: 0x00007fffbff8f8d4 CoreFoundation`__CFRunLoopServiceMachPort + 212
    frame #3: 0x00007fffbff8ed61 CoreFoundation`__CFRunLoopRun + 1361
    frame #4: 0x00007fffbff8e5b4 CoreFoundation`CFRunLoopRunSpecific + 420
    frame #5: 0x00007fffbdd72e9e AppKit`_NSEventThread + 205
    frame #6: 0x00007fffd51e4abb libsystem_pthread.dylib`_pthread_body + 180
    frame #7: 0x00007fffd51e4a07 libsystem_pthread.dylib`_pthread_start + 286
    frame #8: 0x00007fffd51e4231 libsystem_pthread.dylib`thread_start + 13

  thread #16: tid = 0x3f6601, 0x00007fffd50fcc8a libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'Threadpool worker'
    frame #0: 0x00007fffd50fcc8a libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #1: 0x00007fffd51e597a libsystem_pthread.dylib`_pthread_cond_wait + 712
    frame #2: 0x00000001004b1944 Mecha`worker_thread [inlined] mono_os_cond_timedwait(cond=<unavailable>, mutex=0x00007fd32ec45f90, timeout_ms=<unavailable>) + 136 at mono-os-mutex.h:136 [opt]
    frame #3: 0x00000001004b18bc Mecha`worker_thread + 23 at mono-coop-mutex.h:107 [opt]
    frame #4: 0x00000001004b18a5 Mecha`worker_thread + 300 at threadpool-ms.c:532 [opt]
    frame #5: 0x00000001004b1779 Mecha`worker_thread(data=<unavailable>) + 825 at threadpool-ms.c:624 [opt]
    frame #6: 0x00000001004ba31e Mecha`start_wrapper [inlined] start_wrapper_internal + 508 at threads.c:740 [opt]
    frame #7: 0x00000001004ba122 Mecha`start_wrapper(data=<unavailable>) + 50 at threads.c:788 [opt]
    frame #8: 0x0000000100527936 Mecha`inner_start_thread(arg=<unavailable>) + 406 at mono-threads-posix.c:92 [opt]
    frame #9: 0x00007fffd51e4abb libsystem_pthread.dylib`_pthread_body + 180
    frame #10: 0x00007fffd51e4a07 libsystem_pthread.dylib`_pthread_start + 286
    frame #11: 0x00007fffd51e4231 libsystem_pthread.dylib`thread_start + 13

  thread #17: tid = 0x3f6650, 0x00007fffd50fcc8a libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'Threadpool worker'
    frame #0: 0x00007fffd50fcc8a libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #1: 0x00007fffd51e597a libsystem_pthread.dylib`_pthread_cond_wait + 712
    frame #2: 0x00000001004b1944 Mecha`worker_thread [inlined] mono_os_cond_timedwait(cond=<unavailable>, mutex=0x00007fd32ec45f90, timeout_ms=<unavailable>) + 136 at mono-os-mutex.h:136 [opt]
    frame #3: 0x00000001004b18bc Mecha`worker_thread + 23 at mono-coop-mutex.h:107 [opt]
    frame #4: 0x00000001004b18a5 Mecha`worker_thread + 300 at threadpool-ms.c:532 [opt]
    frame #5: 0x00000001004b1779 Mecha`worker_thread(data=<unavailable>) + 825 at threadpool-ms.c:624 [opt]
    frame #6: 0x00000001004ba31e Mecha`start_wrapper [inlined] start_wrapper_internal + 508 at threads.c:740 [opt]
    frame #7: 0x00000001004ba122 Mecha`start_wrapper(data=<unavailable>) + 50 at threads.c:788 [opt]
    frame #8: 0x0000000100527936 Mecha`inner_start_thread(arg=<unavailable>) + 406 at mono-threads-posix.c:92 [opt]
    frame #9: 0x00007fffd51e4abb libsystem_pthread.dylib`_pthread_body + 180
    frame #10: 0x00007fffd51e4a07 libsystem_pthread.dylib`_pthread_start + 286
    frame #11: 0x00007fffd51e4231 libsystem_pthread.dylib`thread_start + 13

  thread #18: tid = 0x3f6a33, 0x00007fffd50fccba libsystem_kernel.dylib`__psynch_mutexwait + 10, name = 'Threadpool worker'
    frame #0: 0x00007fffd50fccba libsystem_kernel.dylib`__psynch_mutexwait + 10
    frame #1: 0x00007fffd51e4f7a libsystem_pthread.dylib`_pthread_mutex_lock_wait + 100
    frame #2: 0x00007fffd51e26bd libsystem_pthread.dylib`_pthread_mutex_lock_slow + 285
    frame #3: 0x00000001002a55a4 Mecha`::xamarin_framework_peer_lock() + 20 at runtime.m:340
    frame #4: 0x00000001002a7145 Mecha`::xamarin_release_managed_ref(self=0x000060000025b840, managed_obj=0x0000000100c26640) + 149 at runtime.m:1751
    frame #5: 0x000000010aea6412
    frame #6: 0x000000010ae9d78b
    frame #7: 0x00000001003b09e0 Mecha`mono_jit_runtime_invoke(method=<unavailable>, obj=<unavailable>, params=0x0000000000000000, exc=<unavailable>, error=<unavailable>) + 2272 at mini-runtime.c:2547 [opt]
    frame #8: 0x0000000100461a68 Mecha`do_runtime_invoke(method=0x00007fd32f045560, obj=0x0000000000000000, params=0x0000000000000000, exc=0x0000700011052d18, error=0x0000700011052ca8) + 88 at object.c:2949 [opt]
    frame #9: 0x00000001004b1b67 Mecha`worker_thread(data=<unavailable>) + 1831 at threadpool-ms.c:657 [opt]
    frame #10: 0x00000001004ba31e Mecha`start_wrapper [inlined] start_wrapper_internal + 508 at threads.c:740 [opt]
    frame #11: 0x00000001004ba122 Mecha`start_wrapper(data=<unavailable>) + 50 at threads.c:788 [opt]
    frame #12: 0x0000000100527936 Mecha`inner_start_thread(arg=<unavailable>) + 406 at mono-threads-posix.c:92 [opt]
    frame #13: 0x00007fffd51e4abb libsystem_pthread.dylib`_pthread_body + 180
    frame #14: 0x00007fffd51e4a07 libsystem_pthread.dylib`_pthread_start + 286
    frame #15: 0x00007fffd51e4231 libsystem_pthread.dylib`thread_start + 13

  thread #19: tid = 0x3f6ab2, 0x00007fffd50fcc8a libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'Threadpool worker'
    frame #0: 0x00007fffd50fcc8a libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #1: 0x00007fffd51e597a libsystem_pthread.dylib`_pthread_cond_wait + 712
    frame #2: 0x00000001004b1944 Mecha`worker_thread [inlined] mono_os_cond_timedwait(cond=<unavailable>, mutex=0x00007fd32ec45f90, timeout_ms=<unavailable>) + 136 at mono-os-mutex.h:136 [opt]
    frame #3: 0x00000001004b18bc Mecha`worker_thread + 23 at mono-coop-mutex.h:107 [opt]
    frame #4: 0x00000001004b18a5 Mecha`worker_thread + 300 at threadpool-ms.c:532 [opt]
    frame #5: 0x00000001004b1779 Mecha`worker_thread(data=<unavailable>) + 825 at threadpool-ms.c:624 [opt]
    frame #6: 0x00000001004ba31e Mecha`start_wrapper [inlined] start_wrapper_internal + 508 at threads.c:740 [opt]
    frame #7: 0x00000001004ba122 Mecha`start_wrapper(data=<unavailable>) + 50 at threads.c:788 [opt]
    frame #8: 0x0000000100527936 Mecha`inner_start_thread(arg=<unavailable>) + 406 at mono-threads-posix.c:92 [opt]
    frame #9: 0x00007fffd51e4abb libsystem_pthread.dylib`_pthread_body + 180
    frame #10: 0x00007fffd51e4a07 libsystem_pthread.dylib`_pthread_start + 286
    frame #11: 0x00007fffd51e4231 libsystem_pthread.dylib`thread_start + 13

  thread #20: tid = 0x3f6ab3, 0x00007fffd50fcc8a libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'Threadpool worker'
    frame #0: 0x00007fffd50fcc8a libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #1: 0x00007fffd51e597a libsystem_pthread.dylib`_pthread_cond_wait + 712
    frame #2: 0x00000001004b1944 Mecha`worker_thread [inlined] mono_os_cond_timedwait(cond=<unavailable>, mutex=0x00007fd32ec45f90, timeout_ms=<unavailable>) + 136 at mono-os-mutex.h:136 [opt]
    frame #3: 0x00000001004b18bc Mecha`worker_thread + 23 at mono-coop-mutex.h:107 [opt]
    frame #4: 0x00000001004b18a5 Mecha`worker_thread + 300 at threadpool-ms.c:532 [opt]
    frame #5: 0x00000001004b1779 Mecha`worker_thread(data=<unavailable>) + 825 at threadpool-ms.c:624 [opt]
    frame #6: 0x00000001004ba31e Mecha`start_wrapper [inlined] start_wrapper_internal + 508 at threads.c:740 [opt]
    frame #7: 0x00000001004ba122 Mecha`start_wrapper(data=<unavailable>) + 50 at threads.c:788 [opt]
    frame #8: 0x0000000100527936 Mecha`inner_start_thread(arg=<unavailable>) + 406 at mono-threads-posix.c:92 [opt]
    frame #9: 0x00007fffd51e4abb libsystem_pthread.dylib`_pthread_body + 180
    frame #10: 0x00007fffd51e4a07 libsystem_pthread.dylib`_pthread_start + 286
    frame #11: 0x00007fffd51e4231 libsystem_pthread.dylib`thread_start + 13

  thread #21: tid = 0x3f6ab4, 0x00007fffd50fccba libsystem_kernel.dylib`__psynch_mutexwait + 10, name = 'Threadpool worker'
    frame #0: 0x00007fffd50fccba libsystem_kernel.dylib`__psynch_mutexwait + 10
    frame #1: 0x00007fffd51e4f7a libsystem_pthread.dylib`_pthread_mutex_lock_wait + 100
    frame #2: 0x00007fffd51e26bd libsystem_pthread.dylib`_pthread_mutex_lock_slow + 285
    frame #3: 0x00000001002a55a4 Mecha`::xamarin_framework_peer_lock() + 20 at runtime.m:340
    frame #4: 0x00000001002a7145 Mecha`::xamarin_release_managed_ref(self=0x0000600000444bc0, managed_obj=0x0000000100c129a8) + 149 at runtime.m:1751
    frame #5: 0x000000010aea6412
    frame #6: 0x000000010ae9d78b
    frame #7: 0x00000001003b09e0 Mecha`mono_jit_runtime_invoke(method=<unavailable>, obj=<unavailable>, params=0x0000000000000000, exc=<unavailable>, error=<unavailable>) + 2272 at mini-runtime.c:2547 [opt]
    frame #8: 0x0000000100461a68 Mecha`do_runtime_invoke(method=0x00007fd32f045560, obj=0x0000000000000000, params=0x0000000000000000, exc=0x000070001165bd18, error=0x000070001165bca8) + 88 at object.c:2949 [opt]
    frame #9: 0x00000001004b1b67 Mecha`worker_thread(data=<unavailable>) + 1831 at threadpool-ms.c:657 [opt]
    frame #10: 0x00000001004ba31e Mecha`start_wrapper [inlined] start_wrapper_internal + 508 at threads.c:740 [opt]
    frame #11: 0x00000001004ba122 Mecha`start_wrapper(data=<unavailable>) + 50 at threads.c:788 [opt]
    frame #12: 0x0000000100527936 Mecha`inner_start_thread(arg=<unavailable>) + 406 at mono-threads-posix.c:92 [opt]
    frame #13: 0x00007fffd51e4abb libsystem_pthread.dylib`_pthread_body + 180
    frame #14: 0x00007fffd51e4a07 libsystem_pthread.dylib`_pthread_start + 286
    frame #15: 0x00007fffd51e4231 libsystem_pthread.dylib`thread_start + 13
(lldb) detach
Process 13406 detached
(lldb) (lldb) quit

=================================================================
Got a SIGSEGV while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries
used by your application.
=================================================================