gistfile1.txt

(lldb) bt all
  thread #1: tid = 0x2ccc4, 0x086da4d6 libsystem_kernel.dylib`semaphore_wait_trap + 10, name = 'tid_a07', stop reason = signal SIGSTOP
    frame #0: 0x086da4d6 libsystem_kernel.dylib`semaphore_wait_trap + 10
    frame #1: 0x003108c7 SystemTests`mono_threads_core_create_thread [inlined] mono_os_sem_wait(flags=MONO_SEM_FLAGS_NONE) + 11 at mono-os-semaphore.h:72
    frame #2: 0x003108bc SystemTests`mono_threads_core_create_thread + 11 at mono-coop-semaphore.h:40
    frame #3: 0x003108b1 SystemTests`mono_threads_core_create_thread(start_routine=<unavailable>, arg=<unavailable>, tp=<unavailable>, out_tid=<unavailable>) + 321 at mono-threads-posix.c:161
    frame #4: 0x0029fd0c SystemTests`create_thread(thread=<unavailable>, internal=<unavailable>, start_info=<unavailable>, threadpool_thread=<unavailable>, stack_size=<unavailable>, error=<unavailable>) + 412 at threads.c:847
    frame #5: 0x002a0fa4 SystemTests`ves_icall_System_Threading_Thread_Thread_internal(this_obj=<unavailable>, start=<unavailable>) + 484 at threads.c:1168
    frame #6: 0x14eec548
    frame #7: 0x14eec3cc
    frame #8: 0x14eec080
    frame #9: 0x14eebf08
    frame #10: 0x15017c00
    frame #11: 0x1501b7e0
    frame #12: 0x150173b3
    frame #13: 0x1501b3f4
    frame #14: 0x1501b248
    frame #15: 0x14e64a81
    frame #16: 0x0019c3e2 SystemTests`mono_jit_runtime_invoke(method=0x7a894cd0, obj=<unavailable>, params=<unavailable>, exc=<unavailable>, error=<unavailable>) + 1458 at mini-runtime.c:2545
    frame #17: 0x00257302 SystemTests`do_runtime_invoke(method=<unavailable>, obj=<unavailable>, params=<unavailable>, exc=<unavailable>, error=<unavailable>) + 98 at object.c:2949
    frame #18: 0x0025a88e SystemTests`mono_runtime_try_invoke_array [inlined] mono_runtime_invoke_checked(method=<unavailable>, error=<unavailable>) + 76 at object.c:3107
    frame #19: 0x0025a842 SystemTests`mono_runtime_try_invoke_array(method=<unavailable>, obj=0x12cca7a0, params=<unavailable>, exc=<unavailable>, error=<unavailable>) + 1234 at object.c:5206
    frame #20: 0x0025ad29 SystemTests`mono_runtime_invoke_array_checked(method=0x79895c80, obj=0x12cca7a0, params=0x00000000, error=0xbff201a0) + 57 at object.c:5084
    frame #21: 0x00204d88 SystemTests`ves_icall_InternalInvoke(method=<unavailable>, this_arg=<unavailable>, params=<unavailable>, exc=<unavailable>) + 696 at icall.c:3313
    frame #22: 0x14ee8840
    frame #23: 0x14ee8534
    frame #24: 0x14ee8336
    frame #25: 0x14ee80ac
    frame #26: 0x14eead28
    frame #27: 0x14ee9fa4
    frame #28: 0x14ee9d2c
    frame #29: 0x14e64e5d
    frame #30: 0x14e64d07
    frame #31: 0x14e5db98
    frame #32: 0x14e5d3a0
    frame #33: 0x14e62247
    frame #34: 0x14e5ed7c
    frame #35: 0x14e5db98
    frame #36: 0x14e5d3a0
    frame #37: 0x14e62247
    frame #38: 0x14e5ed7c
    frame #39: 0x14e5db98
    frame #40: 0x14e5d3a0
    frame #41: 0x14e62247
    frame #42: 0x14e5ed7c
    frame #43: 0x14e5db98
    frame #44: 0x14e5d3a0
    frame #45: 0x14e5a869
    frame #46: 0x14e32344
    frame #47: 0x14e320a4
    frame #48: 0x14b29c25
    frame #49: 0x12c44b59
    frame #50: 0x0019c3e2 SystemTests`mono_jit_runtime_invoke(method=0xbff20c28, obj=<unavailable>, params=<unavailable>, exc=<unavailable>, error=<unavailable>) + 1458 at mini-runtime.c:2545
    frame #51: 0x00257302 SystemTests`do_runtime_invoke(method=<unavailable>, obj=<unavailable>, params=<unavailable>, exc=<unavailable>, error=<unavailable>) + 98 at object.c:2949
    frame #52: 0x00257208 SystemTests`mono_runtime_invoke [inlined] mono_runtime_try_invoke(method=<unavailable>, obj=<unavailable>, params=<unavailable>, exc=0x002572b2, error=0x00000000) + 79 at object.c:3060
    frame #53: 0x002571b9 SystemTests`mono_runtime_invoke(method=<unavailable>, obj=<unavailable>, params=<unavailable>, exc=0x002572b2) + 41 at object.c:3000
    frame #54: 0x00330936 SystemTests`native_to_managed_trampoline_1(self=0x79775d50, _cmd="xamarinApplySelector", managed_method_ptr=0x004058c4, r0="Foundation.NSAsyncActionDispatcher, Xamarin.WatchOS", r1="Apply") + 326 at Xamarin.WatchOS.registrar.watchos.m:23
    frame #55: 0x0033137a SystemTests`-[__MonoMac_NSAsyncActionDispatcher xamarinApplySelector](self=0x79775d50, _cmd="xamarinApplySelector") + 74 at Xamarin.WatchOS.registrar.watchos.m:2366
    frame #56: 0x04a5705d libobjc.A.dylib`-[NSObject performSelector:withObject:] + 70
    frame #57: 0x01cbb977 Foundation`__NSThreadPerformPerform + 323
    frame #58: 0x026892ef CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 15
    frame #59: 0x0267ef7b CoreFoundation`__CFRunLoopDoSources0 + 523
    frame #60: 0x0267e398 CoreFoundation`__CFRunLoopRun + 1032
    frame #61: 0x0267dcd6 CoreFoundation`CFRunLoopRunSpecific + 470
    frame #62: 0x0267daeb CoreFoundation`CFRunLoopRunInMode + 123
    frame #63: 0x01cc0061 Foundation`-[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 308
    frame #64: 0x01d66fcd Foundation`-[NSRunLoop(NSRunLoop) run] + 82
    frame #65: 0x0867006f libxpc.dylib`_xpc_objc_main + 486
    frame #66: 0x08672dce libxpc.dylib`xpc_main + 215
    frame #67: 0x01e90fa9 Foundation`-[NSXPCListener resume] + 186
    frame #68: 0x0fd72232 PlugInKit`-[PKService run] + 582
    frame #69: 0x0326f241 WatchKit`main + 146
    frame #70: 0x0032effb SystemTests`xamarin_main(argc=1, argv=0xbff21eb4, is_extension=true) + 2667 at monotouch-main.m:476
    frame #71: 0x0033f70c SystemTests`xamarin_watchextension_main(argc=1, argv=0xbff21eb4) + 124 at main.i386.m:40
    frame #72: 0x0838aad5 libdyld.dylib`start + 1

  thread #2: tid = 0x2ccc6, 0x086e27de libsystem_kernel.dylib`kevent64 + 10, queue = 'com.apple.libdispatch-manager'
    frame #0: 0x086e27de libsystem_kernel.dylib`kevent64 + 10
    frame #1: 0x083542cb libdispatch.dylib`_dispatch_mgr_invoke + 257
    frame #2: 0x0835401b libdispatch.dylib`_dispatch_mgr_thread + 60

  thread #3: tid = 0x2ccc7, 0x086e1646 libsystem_kernel.dylib`__recvfrom + 10
    frame #0: 0x086e1646 libsystem_kernel.dylib`__recvfrom + 10
    frame #1: 0x08456d83 libsystem_c.dylib`recv + 55
    frame #2: 0x0032d29d SystemTests`recv_uninterrupted(fd=7, buf=0xb009286b, len=1) + 77 at monotouch-debug.m:399
    frame #3: 0x0032d581 SystemTests`monotouch_process_connection(fd=7) + 193 at monotouch-debug.m:836
    frame #4: 0x0032d09f SystemTests`monotouch_connect_wifi(ips=0x7973e4d0) + 2815 at monotouch-debug.m:616
    frame #5: 0x0032bb12 SystemTests`monotouch_configure_debugging + 3858 at monotouch-debug.m:344
    frame #6: 0x003211f7 SystemTests`-[CocoaThreadInitializer entryPoint:](self=0x7b04b8c0, _cmd="entryPoint:", obj=0x00000000) + 119 at shared.m:130
    frame #7: 0x01cbe259 Foundation`-[NSThread main] + 76
    frame #8: 0x01d73484 Foundation`__NSThread__start__ + 1346
    frame #9: 0x086a6780 libsystem_pthread.dylib`_pthread_body + 138
    frame #10: 0x086a66f6 libsystem_pthread.dylib`_pthread_start + 155
    frame #11: 0x086a3f7a libsystem_pthread.dylib`thread_start + 34

  thread #4: tid = 0x2cccb, 0x086e13ea libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'SGen worker'
    frame #0: 0x086e13ea libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #1: 0x086a7538 libsystem_pthread.dylib`_pthread_cond_wait + 757
    frame #2: 0x086a9276 libsystem_pthread.dylib`pthread_cond_wait$UNIX2003 + 71
    frame #3: 0x002ea365 SystemTests`thread_func [inlined] mono_os_cond_wait(mutex=0x00000000) + 18 at mono-os-mutex.h:107
    frame #4: 0x002ea353 SystemTests`thread_func(thread_data=<unavailable>) + 339 at sgen-thread-pool.c:110
    frame #5: 0x086a6780 libsystem_pthread.dylib`_pthread_body + 138
    frame #6: 0x086a66f6 libsystem_pthread.dylib`_pthread_start + 155
    frame #7: 0x086a3f7a libsystem_pthread.dylib`thread_start + 34

  thread #5: tid = 0x2cccd, 0x086da4d6 libsystem_kernel.dylib`semaphore_wait_trap + 10, name = 'Finalizer'
    frame #0: 0x086da4d6 libsystem_kernel.dylib`semaphore_wait_trap + 10
    frame #1: 0x001fbcb2 SystemTests`finalizer_thread [inlined] mono_os_sem_wait(flags=MONO_SEM_FLAGS_ALERTABLE) + 14 at mono-os-semaphore.h:72
    frame #2: 0x001fbca4 SystemTests`finalizer_thread + 10 at mono-coop-semaphore.h:40
    frame #3: 0x001fbc9a SystemTests`finalizer_thread(unused=0x00000000) + 234 at gc.c:767
    frame #4: 0x002a800f SystemTests`start_wrapper [inlined] start_wrapper_internal + 546 at threads.c:741
    frame #5: 0x002a7ded SystemTests`start_wrapper(data=<unavailable>) + 29 at threads.c:789
    frame #6: 0x00310b9a SystemTests`inner_start_thread(arg=<unavailable>) + 458 at mono-threads-posix.c:95
    frame #7: 0x086a6780 libsystem_pthread.dylib`_pthread_body + 138
    frame #8: 0x086a66f6 libsystem_pthread.dylib`_pthread_start + 155
    frame #9: 0x086a3f7a libsystem_pthread.dylib`thread_start + 34

  thread #6: tid = 0x2ccce, 0x086e1646 libsystem_kernel.dylib`__recvfrom + 10, name = 'Debugger agent'
    frame #0: 0x086e1646 libsystem_kernel.dylib`__recvfrom + 10
    frame #1: 0x08456d83 libsystem_c.dylib`recv + 55
    frame #2: 0x0032d29d SystemTests`recv_uninterrupted(fd=5, buf=0xb041cf2d, len=11) + 77 at monotouch-debug.m:399
    frame #3: 0x0032d40b SystemTests`sdb_recv(buf=0xb041cf2d, len=11) + 91 at monotouch-debug.m:429
    frame #4: 0x000fde07 SystemTests`debugger_thread [inlined] transport_recv(len=11) + 1559 at debugger-agent.c:1536
    frame #5: 0x000fdde8 SystemTests`debugger_thread(arg=0x00000000) + 1528 at debugger-agent.c:9850
    frame #6: 0x00310b9a SystemTests`inner_start_thread(arg=<unavailable>) + 458 at mono-threads-posix.c:95
    frame #7: 0x086a6780 libsystem_pthread.dylib`_pthread_body + 138
    frame #8: 0x086a66f6 libsystem_pthread.dylib`_pthread_start + 155
    frame #9: 0x086a3f7a libsystem_pthread.dylib`thread_start + 34

  thread #7: tid = 0x2cd00, 0x086e13ea libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'tid_400f'
    frame #0: 0x086e13ea libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #1: 0x086a7538 libsystem_pthread.dylib`_pthread_cond_wait + 757
    frame #2: 0x086aad0b libsystem_pthread.dylib`pthread_cond_timedwait$UNIX2003 + 71
    frame #3: 0x00314b34 SystemTests`mono_thread_info_sleep [inlined] mono_os_cond_timedwait(cond=0xb0542e68, mutex=0x00000000) + 119 at mono-os-mutex.h:136
    frame #4: 0x00314abd SystemTests`mono_thread_info_sleep + 10 at mono-coop-mutex.h:107
    frame #5: 0x00314ab3 SystemTests`mono_thread_info_sleep [inlined] sleep_interruptable(ms=<unavailable>, alerted=<unavailable>) + 131 at mono-threads.c:1208
    frame #6: 0x00314a30 SystemTests`mono_thread_info_sleep(ms=<unavailable>, alerted=<unavailable>) + 464 at mono-threads.c:1240
    frame #7: 0x0029e4a6 SystemTests`monitor_thread + 182 at threadpool-ms.c:905
    frame #8: 0x002a800f SystemTests`start_wrapper [inlined] start_wrapper_internal + 546 at threads.c:741
    frame #9: 0x002a7ded SystemTests`start_wrapper(data=<unavailable>) + 29 at threads.c:789
    frame #10: 0x00310b9a SystemTests`inner_start_thread(arg=<unavailable>) + 458 at mono-threads-posix.c:95
    frame #11: 0x086a6780 libsystem_pthread.dylib`_pthread_body + 138
    frame #12: 0x086a66f6 libsystem_pthread.dylib`_pthread_start + 155
    frame #13: 0x086a3f7a libsystem_pthread.dylib`thread_start + 34

  thread #8: tid = 0x2cd01, 0x086e1422 libsystem_kernel.dylib`__psynch_mutexwait + 10, name = 'Threadpool worker'
    frame #0: 0x086e1422 libsystem_kernel.dylib`__psynch_mutexwait + 10
    frame #1: 0x086a6c62 libsystem_pthread.dylib`_pthread_mutex_lock_wait + 99
    frame #2: 0x086a426e libsystem_pthread.dylib`_pthread_mutex_lock_slow + 277
    frame #3: 0x086a413d libsystem_pthread.dylib`pthread_mutex_lock + 138
    frame #4: 0x00214fc6 SystemTests`mono_loader_lock [inlined] mono_os_mutex_lock(mutex=0x003fceb0) + 8 at mono-os-mutex.h:72
    frame #5: 0x00214fbe SystemTests`mono_loader_lock + 43 at mono-coop-mutex.h:55
    frame #6: 0x00214f93 SystemTests`mono_loader_lock + 3 at loader.c:2257
    frame #7: 0x000f9ad7 SystemTests`thread_end(prof=0x003fbc44, tid=2959364096) + 23 at debugger-agent.c:3879
    frame #8: 0x0026043c SystemTests`mono_profiler_thread_end(tid=2959364096) + 60 at profiler.c:614
    frame #9: 0x002a0a5d SystemTests`thread_cleanup(thread=<unavailable>) + 701 at threads.c:459
    frame #10: 0x002a80a4 SystemTests`start_wrapper [inlined] start_wrapper_internal + 695 at threads.c:765
    frame #11: 0x002a7ded SystemTests`start_wrapper(data=<unavailable>) + 29 at threads.c:789
    frame #12: 0x00310b9a SystemTests`inner_start_thread(arg=<unavailable>) + 458 at mono-threads-posix.c:95
    frame #13: 0x086a6780 libsystem_pthread.dylib`_pthread_body + 138
    frame #14: 0x086a66f6 libsystem_pthread.dylib`_pthread_start + 155
    frame #15: 0x086a3f7a libsystem_pthread.dylib`thread_start + 34

  thread #9: tid = 0x2cd02, 0x086e1422 libsystem_kernel.dylib`__psynch_mutexwait + 10, name = 'Threadpool worker'
    frame #0: 0x086e1422 libsystem_kernel.dylib`__psynch_mutexwait + 10
    frame #1: 0x086a6c62 libsystem_pthread.dylib`_pthread_mutex_lock_wait + 99
    frame #2: 0x086a426e libsystem_pthread.dylib`_pthread_mutex_lock_slow + 277
    frame #3: 0x086a413d libsystem_pthread.dylib`pthread_mutex_lock + 138
    frame #4: 0x00214fc6 SystemTests`mono_loader_lock [inlined] mono_os_mutex_lock(mutex=0x003fceb0) + 8 at mono-os-mutex.h:72
    frame #5: 0x00214fbe SystemTests`mono_loader_lock + 43 at mono-coop-mutex.h:55
    frame #6: 0x00214f93 SystemTests`mono_loader_lock + 3 at loader.c:2257
    frame #7: 0x000f9ad7 SystemTests`thread_end(prof=0x003fbc44, tid=2960420864) + 23 at debugger-agent.c:3879
    frame #8: 0x0026043c SystemTests`mono_profiler_thread_end(tid=2960420864) + 60 at profiler.c:614
    frame #9: 0x002a0a5d SystemTests`thread_cleanup(thread=<unavailable>) + 701 at threads.c:459
    frame #10: 0x002a80a4 SystemTests`start_wrapper [inlined] start_wrapper_internal + 695 at threads.c:765
    frame #11: 0x002a7ded SystemTests`start_wrapper(data=<unavailable>) + 29 at threads.c:789
    frame #12: 0x00310b9a SystemTests`inner_start_thread(arg=<unavailable>) + 458 at mono-threads-posix.c:95
    frame #13: 0x086a6780 libsystem_pthread.dylib`_pthread_body + 138
    frame #14: 0x086a66f6 libsystem_pthread.dylib`_pthread_start + 155
    frame #15: 0x086a3f7a libsystem_pthread.dylib`thread_start + 34

  thread #10: tid = 0x2d939, 0x086e17ce libsystem_kernel.dylib`__semwait_signal + 10, name = 'tid_5987'
    frame #0: 0x086e17ce libsystem_kernel.dylib`__semwait_signal + 10
    frame #1: 0x08456c71 libsystem_c.dylib`nanosleep + 218
    frame #2: 0x00317736 SystemTests`monoeg_g_usleep(microseconds=31770) + 86 at gdate-unix.c:53
    frame #3: 0x00314119 SystemTests`mono_thread_info_safe_suspend_and_run [inlined] suspend_sync_nolock + 313 at mono-threads.c:953
    frame #4: 0x00313fe0 SystemTests`mono_thread_info_safe_suspend_and_run(id=<unavailable>, interrupt_kernel=<unavailable>, callback=<unavailable>, user_data=<unavailable>) + 128 at mono-threads.c:975
    frame #5: 0x001089c1 SystemTests`notify_thread(key=0x15102e20, value=<unavailable>, user_data=0x00000000) + 113 at debugger-agent.c:2693
    frame #6: 0x0024e7b2 SystemTests`mono_g_hash_table_foreach(hash=<unavailable>, func=(SystemTests`notify_thread at debugger-agent.c:2679), user_data=0x00000000) + 82 at mono-hash.c:286
    frame #7: 0x00107ed7 SystemTests`suspend_vm + 167 at debugger-agent.c:2770
    frame #8: 0x000fbf38 SystemTests`process_event(event=<unavailable>, arg=<unavailable>, il_offset=8, ctx=<unavailable>, events=0x0194ae38, suspend_policy=0) + 3016 at debugger-agent.c:3738
    frame #9: 0x000f9bce SystemTests`thread_end [inlined] process_profiler_event(event=EVENT_KIND_THREAD_DEATH, arg=<unavailable>) + 270 at debugger-agent.c:3793
    frame #10: 0x000f9b79 SystemTests`thread_end(prof=0x003fbc44, tid=<unavailable>) + 185 at debugger-agent.c:3908
    frame #11: 0x0026043c SystemTests`mono_profiler_thread_end(tid=2962534400) + 60 at profiler.c:614
    frame #12: 0x002a0a5d SystemTests`thread_cleanup(thread=<unavailable>) + 701 at threads.c:459
    frame #13: 0x002a80a4 SystemTests`start_wrapper [inlined] start_wrapper_internal + 695 at threads.c:765
    frame #14: 0x002a7ded SystemTests`start_wrapper(data=<unavailable>) + 29 at threads.c:789
    frame #15: 0x00310b9a SystemTests`inner_start_thread(arg=<unavailable>) + 458 at mono-threads-posix.c:95
    frame #16: 0x086a6780 libsystem_pthread.dylib`_pthread_body + 138
    frame #17: 0x086a66f6 libsystem_pthread.dylib`_pthread_start + 155
    frame #18: 0x086a3f7a libsystem_pthread.dylib`thread_start + 34

* thread #11: tid = 0x2d93a, 0x086e1422 libsystem_kernel.dylib`__psynch_mutexwait + 10, name = 'tid_585f'
    frame #0: 0x086e1422 libsystem_kernel.dylib`__psynch_mutexwait + 10
    frame #1: 0x086a6c62 libsystem_pthread.dylib`_pthread_mutex_lock_wait + 99
    frame #2: 0x086a412b libsystem_pthread.dylib`pthread_mutex_lock + 120
    frame #3: 0x00114baa SystemTests`suspend_current [inlined] mono_os_mutex_lock(mutex=0x003fbcc8) + 11 at mono-os-mutex.h:72
    frame #4: 0x00114b9f SystemTests`suspend_current + 38 at mono-coop-mutex.h:55
    frame #5: 0x00114b79 SystemTests`suspend_current + 89 at debugger-agent.c:2918
  * frame #6: 0x000fc93d SystemTests`process_single_step_inner [inlined] process_suspend(tls=<unavailable>, ctx=<unavailable>) + 1005 at debugger-agent.c:2747
    frame #7: 0x000fc8af SystemTests`process_single_step_inner(tls=0xb0a4c970, from_signal=0) + 863 at debugger-agent.c:4888
    frame #8: 0x000fc476 SystemTests`debugger_agent_single_step_from_context(ctx=0xb0a4c928) + 278 at debugger-agent.c:5016
    frame #9: 0x12be1fc3
    frame #10: 0x12c2a2a5
    frame #11: 0x1500a370
    frame #12: 0x1500a220
    frame #13: 0x15009fe4
    frame #14: 0x1500d1a4
    frame #15: 0x1500cbf0
    frame #16: 0x1500cadc
    frame #17: 0x1501bfbc
    frame #18: 0x15017e57
    frame #19: 0x14eed48f
    frame #20: 0x14b36de2
    frame #21: 0x14b36540
    frame #22: 0x14eecf40
    frame #23: 0x14eecaf0
    frame #24: 0x14eec6c1
    frame #25: 0x0019c3e2 SystemTests`mono_jit_runtime_invoke(method=0xb0a4ce38, obj=<unavailable>, params=<unavailable>, exc=<unavailable>, error=<unavailable>) + 1458 at mini-runtime.c:2545
    frame #26: 0x00257302 SystemTests`do_runtime_invoke(method=<unavailable>, obj=<unavailable>, params=<unavailable>, exc=<unavailable>, error=<unavailable>) + 98 at object.c:2949
    frame #27: 0x00258bc4 SystemTests`mono_runtime_delegate_try_invoke [inlined] mono_runtime_try_invoke(method=<unavailable>, params=<unavailable>, exc=<unavailable>, error=<unavailable>) + 340 at object.c:3060
    frame #28: 0x00258bba SystemTests`mono_runtime_delegate_try_invoke(delegate=<unavailable>, params=<unavailable>, exc=<unavailable>, error=<unavailable>) + 330 at object.c:4050
    frame #29: 0x00258c32 SystemTests`mono_runtime_delegate_invoke_checked(delegate=0x12ca3800, params=0xb0a4cf38, error=0xb0a4cf00) + 50 at object.c:4073
    frame #30: 0x002a8095 SystemTests`start_wrapper + 680 at threads.c:747
    frame #31: 0x002a7ded SystemTests`start_wrapper(data=<unavailable>) + 29 at threads.c:789
    frame #32: 0x00310b9a SystemTests`inner_start_thread(arg=<unavailable>) + 458 at mono-threads-posix.c:95
    frame #33: 0x086a6780 libsystem_pthread.dylib`_pthread_body + 138
    frame #34: 0x086a66f6 libsystem_pthread.dylib`_pthread_start + 155
    frame #35: 0x086a3f7a libsystem_pthread.dylib`thread_start + 34

  thread #12: tid = 0x2d93b, 0x086da4d6 libsystem_kernel.dylib`semaphore_wait_trap + 10, name = 'tid_54a7'
    frame #0: 0x086da4d6 libsystem_kernel.dylib`semaphore_wait_trap + 10
    frame #1: 0x00314476 SystemTests`mono_thread_info_suspend_lock_with_info [inlined] mono_os_sem_wait(flags=MONO_SEM_FLAGS_NONE) + 14 at mono-os-semaphore.h:72
    frame #2: 0x00314468 SystemTests`mono_thread_info_suspend_lock_with_info(info=<unavailable>) + 40 at mono-threads.c:1029
    frame #3: 0x00313320 SystemTests`mono_thread_info_attach [inlined] mono_thread_info_suspend_lock + 384 at mono-threads.c:1038
    frame #4: 0x003132fc SystemTests`mono_thread_info_attach [inlined] register_thread(baseptr=<unavailable>) + 259 at mono-threads.c:384
    frame #5: 0x003131f9 SystemTests`mono_thread_info_attach(baseptr=<unavailable>) + 89 at mono-threads.c:596
    frame #6: 0x00310a13 SystemTests`inner_start_thread(arg=0x003131ae) + 67 at mono-threads-posix.c:70
    frame #7: 0x086a6780 libsystem_pthread.dylib`_pthread_body + 138
    frame #8: 0x086a66f6 libsystem_pthread.dylib`_pthread_start + 155
    frame #9: 0x086a3f7a libsystem_pthread.dylib`thread_start + 34