nosami · May 17, 2017 14:03
diff --git a/gistfile1.txt b/gistfile1.txt
 14:59 $ mono ../FSharp.Compiler.Service/samples/FsiExe/bin/Debug/FsiExe.exe bug739.fsx
 System.ArrayTypeMismatchException: Attempted to access an element as a type incompatible with the array.
  at (wrapper stelemref) System.Object:virt_stelemref_sealed_class (intptr,object)
  at FSI_0001.reader (System.String path) [0x00174] in <cf74e683ec9c4c17a2eeaa76f2d33459>:0
  at <StartupCode$FSI_0001>.$FSI_0001.main@ () [0x00002] in <cf74e683ec9c4c17a2eeaa76f2d33459>:0
  at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
  at System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00032] in <b697cffb61b74023aa9c587e6c49beb3>:0
 Stopped due to error
 * Assertion: should not be reached at ./sgen-scan-object.h:90


 Native stacktrace:

        0   mono64                              0x0000000108a5a136 mono_handle_native_crash + 278
        1   libsystem_platform.dylib            0x00007fffb826cbba _sigtramp + 26
        2   ???                                 0x0000000000000004 0x0 + 4
        3   libsystem_c.dylib                   0x00007fffb80f3420 abort + 129
        4   mono64                              0x0000000108c2dc6b mono_log_write_logfile + 363
        5   mono64                              0x0000000108c45550 monoeg_assertion_message + 192
        6   mono64                              0x0000000108c00552 drain_gray_stack + 7298
        7   mono64                              0x0000000108c26551 marker_idle_func + 433
        8   mono64                              0x0000000108c2531c thread_func + 460
        9   libsystem_pthread.dylib             0x00007fffb8276aab _pthread_body + 180
        10  libsystem_pthread.dylib             0x00007fffb82769f7 _pthread_body + 0
        11  libsystem_pthread.dylib             0x00007fffb8276221 thread_start + 13

 Debug info from gdb:

 (lldb) command source -s 0 '/tmp/mono-gdb-commands.ddqhWs'
 Executing commands in '/tmp/mono-gdb-commands.ddqhWs'.
 (lldb) process attach --pid 56819
 Process 56819 stopped
 * thread #1, name = 'tid_307', queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
    frame #0: 0x00007fffb818dc8a libsystem_kernel.dylib`__psynch_cvwait + 10
 libsystem_kernel.dylib`__psynch_cvwait:
 ->  0x7fffb818dc8a <+10>: jae    0x7fffb818dc94            ; <+20>
    0x7fffb818dc8c <+12>: movq   %rax, %rdi
    0x7fffb818dc8f <+15>: jmp    0x7fffb8186d6f            ; cerror_nocancel
    0x7fffb818dc94 <+20>: retq

 Executable module set to "/Library/Frameworks/Mono.framework/Versions/Current/Commands/mono64".
 Architecture set to: x86_64h-apple-macosx.
 (lldb) thread list
 Process 56819 stopped
 * thread #1: tid = 0x107cdff, 0x00007fffb818dc8a libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'tid_307', queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
  thread #2: tid = 0x107ce00, 0x00007fffb818e486 libsystem_kernel.dylib`__wait4 + 10, name = 'SGen worker'
  thread #3: tid = 0x107ce04, 0x00007fffb818646e libsystem_kernel.dylib`semaphore_timedwait_trap + 10, name = 'Finalizer'
  thread #4: tid = 0x107ce05, 0x00007fffb818e4e6 libsystem_kernel.dylib`__workq_kernreturn + 10
  thread #5: tid = 0x107ce06, 0x00007fffb818e4e6 libsystem_kernel.dylib`__workq_kernreturn + 10
  thread #6: tid = 0x107ce08, 0x00007fffb818e4e6 libsystem_kernel.dylib`__workq_kernreturn + 10
  thread #7: tid = 0x107ce17, 0x00007fffb818dcba libsystem_kernel.dylib`__psynch_mutexwait + 10, name = 'Threadpool worker'
 (lldb) thread backtrace all
 * thread #1, name = 'tid_307', queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
  * frame #0: 0x00007fffb818dc8a libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #1: 0x00007fffb827796a libsystem_pthread.dylib`_pthread_cond_wait + 712
    frame #2: 0x0000000108c25d87 mono64`sgen_thread_pool_idle_wait [inlined] mono_os_cond_wait(mutex=0x0000000108d784d8) at mono-os-mutex.h:146 [opt]
    frame #3: 0x0000000108c25d7c mono64`sgen_thread_pool_idle_wait at sgen-thread-pool.c:272 [opt]
    frame #4: 0x0000000108c26e1e mono64`sgen_workers_join at sgen-workers.c:444 [opt]
    frame #5: 0x0000000108bf3e04 mono64`major_copy_or_mark_from_roots(gc_thread_gray_queue=<unavailable>, old_next_pin_slot=<unavailable>, mode=COPY_OR_MARK_FROM_ROOTS_FINISH_CONCURRENT, object_ops_nopar=0x0000000108d79808, object_ops_par=0x0000000000000000) at sgen-gc.c:1930 [opt]
    frame #6: 0x0000000108bf361e mono64`major_finish_collection(gc_thread_gray_queue=0x00007fff5725d7e0, reason="finishing", is_overflow=0, old_next_pin_slot=18446744073709551615, forced=1) at sgen-gc.c:2008 [opt]
    frame #7: 0x0000000108befe7b mono64`sgen_perform_collection [inlined] major_finish_concurrent_collection(forced=1) at sgen-gc.c:2246 [opt]
    frame #8: 0x0000000108befdee mono64`sgen_perform_collection(requested_size=0, generation_to_collect=1, reason=<unavailable>, wait_to_finish=1, stw=1) at sgen-gc.c:2334 [opt]
    frame #9: 0x0000000108bf1723 mono64`sgen_gc_collect(generation=1) at sgen-gc.c:2753 [opt]
    frame #10: 0x0000000108ba5234 mono64`mono_domain_finalize(domain=0x00007fc2a240fb80, timeout=2000) at gc.c:477 [opt]
    frame #11: 0x00000001089b34ae mono64`mini_cleanup(domain=0x00007fc2a240fb80) at mini-runtime.c:4105 [opt]
    frame #12: 0x0000000108b09eb5 mono64`ves_icall_System_Environment_Exit(result=1) at icall.c:6656 [opt]
    frame #13: 0x0000000113922909
    frame #14: 0x0000000108ecab97
    frame #15: 0x0000000108ecb033
    frame #16: 0x00000001089b2ad5 mono64`mono_jit_runtime_invoke(method=<unavailable>, obj=0x0000000000000000, params=<unavailable>, error=<unavailable>) at mini-runtime.c:2533 [opt]
    frame #17: 0x0000000108badfd8 mono64`do_runtime_invoke(method=0x00007fc2a2606cd8, obj=0x0000000000000000, params=0x00007fff5725e180, exc=0x0000000000000000, error=0x00007fff5725e1d0) at object.c:2860 [opt]
    frame #18: 0x0000000108bb14b0 mono64`do_exec_main_checked [inlined] mono_runtime_invoke_checked(method=0x00007fc2a2606cd8, obj=<unavailable>, params=0x00000001090003e8, error=0x00007fff5725e1d0) at object.c:3018 [opt]
    frame #19: 0x0000000108bb146f mono64`do_exec_main_checked(method=0x00007fc2a2606cd8, args=<unavailable>, error=0x00007fff5725e1d0) at object.c:4680 [opt]
    frame #20: 0x0000000108a214ee mono64`mono_jit_exec(domain=<unavailable>, assembly=<unavailable>, argc=2, argv=0x00007fc2a2408fa8) at driver.g.c:1037 [opt]
    frame #21: 0x0000000108a238a5 mono64`mono_main [inlined] main_thread_handler at driver.g.c:1106 [opt]
    frame #22: 0x0000000108a23872 mono64`mono_main(argc=<unavailable>, argv=<unavailable>) at driver.g.c:2215 [opt]
    frame #23: 0x00000001089a3b2a mono64`main [inlined] mono_main_with_options(argc=5, argc=5, argc=5, argv=0x00007fc2a2408f90, argv=0x00007fc2a2408f90, argv=0x00007fc2a2408f90) at main.c:45 [opt]
    frame #24: 0x00000001089a3b19 mono64`main(argc=4, argv=0x00007fff5725e5f8) at main.c:338 [opt]
    frame #25: 0x00000001089a3484 mono64`start + 52

  thread #2, name = 'SGen worker'
    frame #0: 0x00007fffb818e486 libsystem_kernel.dylib`__wait4 + 10
    frame #1: 0x0000000108a5a1cd mono64`mono_handle_native_crash(signal="SIGABRT", ctx=<unavailable>, info=<unavailable>) at mini-exceptions.c:2567 [opt]
    frame #2: 0x00007fffb826cbba libsystem_platform.dylib`_sigtramp + 26
    frame #3: 0x00007fffb818dddb libsystem_kernel.dylib`__pthread_kill + 11
    frame #4: 0x00007fffb8279787 libsystem_pthread.dylib`pthread_kill + 90
    frame #5: 0x00007fffb80f3420 libsystem_c.dylib`abort + 129
    frame #6: 0x0000000108c2dc6b mono64`mono_log_write_logfile(log_domain=<unavailable>, level=<unavailable>, hdr=<unavailable>, message=<unavailable>) at mono-log-common.c:137 [opt]
    frame #7: 0x0000000108c45550 mono64`monoeg_assertion_message [inlined] monoeg_g_logv(log_domain=<unavailable>, log_level=G_LOG_LEVEL_ERROR) at goutput.c:115 [opt]
    frame #8: 0x0000000108c4550c mono64`monoeg_assertion_message(format=<unavailable>) at goutput.c:135 [opt]
    frame #9: 0x0000000108c00552 mono64`drain_gray_stack [inlined] major_scan_object_no_evacuation(full_object=<unavailable>, desc=<unavailable>) at sgen-scan-object.h:90 [opt]
    frame #10: 0x0000000108c00538 mono64`drain_gray_stack [inlined] drain_gray_stack_no_evacuation at sgen-marksweep-drain-gray-stack.h:339 [opt]
    frame #11: 0x0000000108c00538 mono64`drain_gray_stack(queue=<unavailable>) at sgen-marksweep.c:1305 [opt]
    frame #12: 0x0000000108c26551 mono64`marker_idle_func(data_untyped=0x0000000108ec0108) at sgen-workers.c:328 [opt]
    frame #13: 0x0000000108c2531c mono64`thread_func(thread_data=0x0000000108ec0108) at sgen-thread-pool.c:151 [opt]
    frame #14: 0x00007fffb8276aab libsystem_pthread.dylib`_pthread_body + 180
    frame #15: 0x00007fffb82769f7 libsystem_pthread.dylib`_pthread_start + 286
    frame #16: 0x00007fffb8276221 libsystem_pthread.dylib`thread_start + 13

  thread #3, name = 'Finalizer'
    frame #0: 0x00007fffb818646e libsystem_kernel.dylib`semaphore_timedwait_trap + 10
    frame #1: 0x0000000108ba5820 mono64`mono_coop_sem_timedwait [inlined] mono_os_sem_timedwait(timeout_ms=<unavailable>) at mono-os-semaphore.h:124 [opt]
    frame #2: 0x0000000108ba5781 mono64`mono_coop_sem_timedwait(sem=0x0000000108d699b0, timeout_ms=<unavailable>, flags=<unavailable>) at mono-coop-semaphore.h:54 [opt]
    frame #3: 0x0000000108ba6cb7 mono64`finalizer_thread(unused=<unavailable>) at gc.c:937 [opt]
    frame #4: 0x0000000108b79c23 mono64`start_wrapper [inlined] start_wrapper_internal at threads.c:837 [opt]
    frame #5: 0x0000000108b79af5 mono64`start_wrapper(data=<unavailable>) at threads.c:889 [opt]
    frame #6: 0x0000000108c3ac21 mono64`inner_start_thread(data=<unavailable>) at mono-threads.c:1170 [opt]
    frame #7: 0x00007fffb8276aab libsystem_pthread.dylib`_pthread_body + 180
    frame #8: 0x00007fffb82769f7 libsystem_pthread.dylib`_pthread_start + 286
    frame #9: 0x00007fffb8276221 libsystem_pthread.dylib`thread_start + 13

  thread #4
    frame #0: 0x00007fffb818e4e6 libsystem_kernel.dylib`__workq_kernreturn + 10
    frame #1: 0x00007fffb82767b5 libsystem_pthread.dylib`_pthread_wqthread + 1426
    frame #2: 0x00007fffb8276211 libsystem_pthread.dylib`start_wqthread + 13

  thread #5
    frame #0: 0x00007fffb818e4e6 libsystem_kernel.dylib`__workq_kernreturn + 10
    frame #1: 0x00007fffb8276622 libsystem_pthread.dylib`_pthread_wqthread + 1023
    frame #2: 0x00007fffb8276211 libsystem_pthread.dylib`start_wqthread + 13

  thread #6
    frame #0: 0x00007fffb818e4e6 libsystem_kernel.dylib`__workq_kernreturn + 10
    frame #1: 0x00007fffb82767b5 libsystem_pthread.dylib`_pthread_wqthread + 1426
    frame #2: 0x00007fffb8276211 libsystem_pthread.dylib`start_wqthread + 13

  thread #7, name = 'Threadpool worker'
    frame #0: 0x00007fffb818dcba libsystem_kernel.dylib`__psynch_mutexwait + 10
    frame #1: 0x00007fffb8276f6a libsystem_pthread.dylib`_pthread_mutex_lock_wait + 100
    frame #2: 0x0000000108bf108a mono64`sgen_gc_lock [inlined] mono_os_mutex_lock at mono-os-mutex.h:94 [opt]
    frame #3: 0x0000000108bf107e mono64`sgen_gc_lock [inlined] mono_coop_mutex_lock(mutex=<unavailable>) at mono-coop-mutex.h:53 [opt]
    frame #4: 0x0000000108bf1054 mono64`sgen_gc_lock at sgen-gc.c:3262 [opt]
    frame #5: 0x0000000108bf1381 mono64`sgen_deregister_root(addr="\b\b\x01") at sgen-gc.c:2594 [opt]
    frame #6: 0x0000000108b7281c mono64`mono_thread_detach_internal(thread=0x0000000108f4c508) at threads.c:1253 [opt]
    frame #7: 0x0000000108b79d51 mono64`start_wrapper [inlined] start_wrapper_internal at threads.c:878 [opt]
    frame #8: 0x0000000108b79af5 mono64`start_wrapper(data=<unavailable>) at threads.c:889 [opt]
    frame #9: 0x0000000108c3ac21 mono64`inner_start_thread(data=<unavailable>) at mono-threads.c:1170 [opt]
    frame #10: 0x00007fffb8276aab libsystem_pthread.dylib`_pthread_body + 180
    frame #11: 0x00007fffb82769f7 libsystem_pthread.dylib`_pthread_start + 286
    frame #12: 0x00007fffb8276221 libsystem_pthread.dylib`thread_start + 13
 (lldb) detach
 Process 56819 detached
 (lldb) quit

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

 Abort trap: 6
	14:59 $ mono ../FSharp.Compiler.Service/samples/FsiExe/bin/Debug/FsiExe.exe bug739.fsx
	System.ArrayTypeMismatchException: Attempted to access an element as a type incompatible with the array.
	at (wrapper stelemref) System.Object:virt_stelemref_sealed_class (intptr,object)
	at FSI_0001.reader (System.String path) [0x00174] in <cf74e683ec9c4c17a2eeaa76f2d33459>:0
	at <StartupCode$FSI_0001>.$FSI_0001.main@ () [0x00002] in <cf74e683ec9c4c17a2eeaa76f2d33459>:0
	at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
	at System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00032] in <b697cffb61b74023aa9c587e6c49beb3>:0
	Stopped due to error
	* Assertion: should not be reached at ./sgen-scan-object.h:90


	Native stacktrace:

	0 mono64 0x0000000108a5a136 mono_handle_native_crash + 278
	1 libsystem_platform.dylib 0x00007fffb826cbba _sigtramp + 26
	2 ??? 0x0000000000000004 0x0 + 4
	3 libsystem_c.dylib 0x00007fffb80f3420 abort + 129
	4 mono64 0x0000000108c2dc6b mono_log_write_logfile + 363
	5 mono64 0x0000000108c45550 monoeg_assertion_message + 192
	6 mono64 0x0000000108c00552 drain_gray_stack + 7298
	7 mono64 0x0000000108c26551 marker_idle_func + 433
	8 mono64 0x0000000108c2531c thread_func + 460
	9 libsystem_pthread.dylib 0x00007fffb8276aab _pthread_body + 180
	10 libsystem_pthread.dylib 0x00007fffb82769f7 _pthread_body + 0
	11 libsystem_pthread.dylib 0x00007fffb8276221 thread_start + 13

	Debug info from gdb:

	(lldb) command source -s 0 '/tmp/mono-gdb-commands.ddqhWs'
	Executing commands in '/tmp/mono-gdb-commands.ddqhWs'.
	(lldb) process attach --pid 56819
	Process 56819 stopped
	* thread #1, name = 'tid_307', queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
	frame #0: 0x00007fffb818dc8a libsystem_kernel.dylib`__psynch_cvwait + 10
	libsystem_kernel.dylib`__psynch_cvwait:
	-> 0x7fffb818dc8a <+10>: jae 0x7fffb818dc94 ; <+20>
	0x7fffb818dc8c <+12>: movq %rax, %rdi
	0x7fffb818dc8f <+15>: jmp 0x7fffb8186d6f ; cerror_nocancel
	0x7fffb818dc94 <+20>: retq

	Executable module set to "/Library/Frameworks/Mono.framework/Versions/Current/Commands/mono64".
	Architecture set to: x86_64h-apple-macosx.
	(lldb) thread list
	Process 56819 stopped
	* thread #1: tid = 0x107cdff, 0x00007fffb818dc8a libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'tid_307', queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
	thread #2: tid = 0x107ce00, 0x00007fffb818e486 libsystem_kernel.dylib`__wait4 + 10, name = 'SGen worker'
	thread #3: tid = 0x107ce04, 0x00007fffb818646e libsystem_kernel.dylib`semaphore_timedwait_trap + 10, name = 'Finalizer'
	thread #4: tid = 0x107ce05, 0x00007fffb818e4e6 libsystem_kernel.dylib`__workq_kernreturn + 10
	thread #5: tid = 0x107ce06, 0x00007fffb818e4e6 libsystem_kernel.dylib`__workq_kernreturn + 10
	thread #6: tid = 0x107ce08, 0x00007fffb818e4e6 libsystem_kernel.dylib`__workq_kernreturn + 10
	thread #7: tid = 0x107ce17, 0x00007fffb818dcba libsystem_kernel.dylib`__psynch_mutexwait + 10, name = 'Threadpool worker'
	(lldb) thread backtrace all
	* thread #1, name = 'tid_307', queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
	* frame #0: 0x00007fffb818dc8a libsystem_kernel.dylib`__psynch_cvwait + 10
	frame #1: 0x00007fffb827796a libsystem_pthread.dylib`_pthread_cond_wait + 712
	frame #2: 0x0000000108c25d87 mono64`sgen_thread_pool_idle_wait [inlined] mono_os_cond_wait(mutex=0x0000000108d784d8) at mono-os-mutex.h:146 [opt]
	frame #3: 0x0000000108c25d7c mono64`sgen_thread_pool_idle_wait at sgen-thread-pool.c:272 [opt]
	frame #4: 0x0000000108c26e1e mono64`sgen_workers_join at sgen-workers.c:444 [opt]
	frame #5: 0x0000000108bf3e04 mono64`major_copy_or_mark_from_roots(gc_thread_gray_queue=<unavailable>, old_next_pin_slot=<unavailable>, mode=COPY_OR_MARK_FROM_ROOTS_FINISH_CONCURRENT, object_ops_nopar=0x0000000108d79808, object_ops_par=0x0000000000000000) at sgen-gc.c:1930 [opt]
	frame #6: 0x0000000108bf361e mono64`major_finish_collection(gc_thread_gray_queue=0x00007fff5725d7e0, reason="finishing", is_overflow=0, old_next_pin_slot=18446744073709551615, forced=1) at sgen-gc.c:2008 [opt]
	frame #7: 0x0000000108befe7b mono64`sgen_perform_collection [inlined] major_finish_concurrent_collection(forced=1) at sgen-gc.c:2246 [opt]
	frame #8: 0x0000000108befdee mono64`sgen_perform_collection(requested_size=0, generation_to_collect=1, reason=<unavailable>, wait_to_finish=1, stw=1) at sgen-gc.c:2334 [opt]
	frame #9: 0x0000000108bf1723 mono64`sgen_gc_collect(generation=1) at sgen-gc.c:2753 [opt]
	frame #10: 0x0000000108ba5234 mono64`mono_domain_finalize(domain=0x00007fc2a240fb80, timeout=2000) at gc.c:477 [opt]
	frame #11: 0x00000001089b34ae mono64`mini_cleanup(domain=0x00007fc2a240fb80) at mini-runtime.c:4105 [opt]
	frame #12: 0x0000000108b09eb5 mono64`ves_icall_System_Environment_Exit(result=1) at icall.c:6656 [opt]
	frame #13: 0x0000000113922909
	frame #14: 0x0000000108ecab97
	frame #15: 0x0000000108ecb033
	frame #16: 0x00000001089b2ad5 mono64`mono_jit_runtime_invoke(method=<unavailable>, obj=0x0000000000000000, params=<unavailable>, error=<unavailable>) at mini-runtime.c:2533 [opt]
	frame #17: 0x0000000108badfd8 mono64`do_runtime_invoke(method=0x00007fc2a2606cd8, obj=0x0000000000000000, params=0x00007fff5725e180, exc=0x0000000000000000, error=0x00007fff5725e1d0) at object.c:2860 [opt]
	frame #18: 0x0000000108bb14b0 mono64`do_exec_main_checked [inlined] mono_runtime_invoke_checked(method=0x00007fc2a2606cd8, obj=<unavailable>, params=0x00000001090003e8, error=0x00007fff5725e1d0) at object.c:3018 [opt]
	frame #19: 0x0000000108bb146f mono64`do_exec_main_checked(method=0x00007fc2a2606cd8, args=<unavailable>, error=0x00007fff5725e1d0) at object.c:4680 [opt]
	frame #20: 0x0000000108a214ee mono64`mono_jit_exec(domain=<unavailable>, assembly=<unavailable>, argc=2, argv=0x00007fc2a2408fa8) at driver.g.c:1037 [opt]
	frame #21: 0x0000000108a238a5 mono64`mono_main [inlined] main_thread_handler at driver.g.c:1106 [opt]
	frame #22: 0x0000000108a23872 mono64`mono_main(argc=<unavailable>, argv=<unavailable>) at driver.g.c:2215 [opt]
	frame #23: 0x00000001089a3b2a mono64`main [inlined] mono_main_with_options(argc=5, argc=5, argc=5, argv=0x00007fc2a2408f90, argv=0x00007fc2a2408f90, argv=0x00007fc2a2408f90) at main.c:45 [opt]
	frame #24: 0x00000001089a3b19 mono64`main(argc=4, argv=0x00007fff5725e5f8) at main.c:338 [opt]
	frame #25: 0x00000001089a3484 mono64`start + 52

	thread #2, name = 'SGen worker'
	frame #0: 0x00007fffb818e486 libsystem_kernel.dylib`__wait4 + 10
	frame #1: 0x0000000108a5a1cd mono64`mono_handle_native_crash(signal="SIGABRT", ctx=<unavailable>, info=<unavailable>) at mini-exceptions.c:2567 [opt]
	frame #2: 0x00007fffb826cbba libsystem_platform.dylib`_sigtramp + 26
	frame #3: 0x00007fffb818dddb libsystem_kernel.dylib`__pthread_kill + 11
	frame #4: 0x00007fffb8279787 libsystem_pthread.dylib`pthread_kill + 90
	frame #5: 0x00007fffb80f3420 libsystem_c.dylib`abort + 129
	frame #6: 0x0000000108c2dc6b mono64`mono_log_write_logfile(log_domain=<unavailable>, level=<unavailable>, hdr=<unavailable>, message=<unavailable>) at mono-log-common.c:137 [opt]
	frame #7: 0x0000000108c45550 mono64`monoeg_assertion_message [inlined] monoeg_g_logv(log_domain=<unavailable>, log_level=G_LOG_LEVEL_ERROR) at goutput.c:115 [opt]
	frame #8: 0x0000000108c4550c mono64`monoeg_assertion_message(format=<unavailable>) at goutput.c:135 [opt]
	frame #9: 0x0000000108c00552 mono64`drain_gray_stack [inlined] major_scan_object_no_evacuation(full_object=<unavailable>, desc=<unavailable>) at sgen-scan-object.h:90 [opt]
	frame #10: 0x0000000108c00538 mono64`drain_gray_stack [inlined] drain_gray_stack_no_evacuation at sgen-marksweep-drain-gray-stack.h:339 [opt]
	frame #11: 0x0000000108c00538 mono64`drain_gray_stack(queue=<unavailable>) at sgen-marksweep.c:1305 [opt]
	frame #12: 0x0000000108c26551 mono64`marker_idle_func(data_untyped=0x0000000108ec0108) at sgen-workers.c:328 [opt]
	frame #13: 0x0000000108c2531c mono64`thread_func(thread_data=0x0000000108ec0108) at sgen-thread-pool.c:151 [opt]
	frame #14: 0x00007fffb8276aab libsystem_pthread.dylib`_pthread_body + 180
	frame #15: 0x00007fffb82769f7 libsystem_pthread.dylib`_pthread_start + 286
	frame #16: 0x00007fffb8276221 libsystem_pthread.dylib`thread_start + 13

	thread #3, name = 'Finalizer'
	frame #0: 0x00007fffb818646e libsystem_kernel.dylib`semaphore_timedwait_trap + 10
	frame #1: 0x0000000108ba5820 mono64`mono_coop_sem_timedwait [inlined] mono_os_sem_timedwait(timeout_ms=<unavailable>) at mono-os-semaphore.h:124 [opt]
	frame #2: 0x0000000108ba5781 mono64`mono_coop_sem_timedwait(sem=0x0000000108d699b0, timeout_ms=<unavailable>, flags=<unavailable>) at mono-coop-semaphore.h:54 [opt]
	frame #3: 0x0000000108ba6cb7 mono64`finalizer_thread(unused=<unavailable>) at gc.c:937 [opt]
	frame #4: 0x0000000108b79c23 mono64`start_wrapper [inlined] start_wrapper_internal at threads.c:837 [opt]
	frame #5: 0x0000000108b79af5 mono64`start_wrapper(data=<unavailable>) at threads.c:889 [opt]
	frame #6: 0x0000000108c3ac21 mono64`inner_start_thread(data=<unavailable>) at mono-threads.c:1170 [opt]
	frame #7: 0x00007fffb8276aab libsystem_pthread.dylib`_pthread_body + 180
	frame #8: 0x00007fffb82769f7 libsystem_pthread.dylib`_pthread_start + 286
	frame #9: 0x00007fffb8276221 libsystem_pthread.dylib`thread_start + 13

	thread #4
	frame #0: 0x00007fffb818e4e6 libsystem_kernel.dylib`__workq_kernreturn + 10
	frame #1: 0x00007fffb82767b5 libsystem_pthread.dylib`_pthread_wqthread + 1426
	frame #2: 0x00007fffb8276211 libsystem_pthread.dylib`start_wqthread + 13

	thread #5
	frame #0: 0x00007fffb818e4e6 libsystem_kernel.dylib`__workq_kernreturn + 10
	frame #1: 0x00007fffb8276622 libsystem_pthread.dylib`_pthread_wqthread + 1023
	frame #2: 0x00007fffb8276211 libsystem_pthread.dylib`start_wqthread + 13

	thread #6
	frame #0: 0x00007fffb818e4e6 libsystem_kernel.dylib`__workq_kernreturn + 10
	frame #1: 0x00007fffb82767b5 libsystem_pthread.dylib`_pthread_wqthread + 1426
	frame #2: 0x00007fffb8276211 libsystem_pthread.dylib`start_wqthread + 13

	thread #7, name = 'Threadpool worker'
	frame #0: 0x00007fffb818dcba libsystem_kernel.dylib`__psynch_mutexwait + 10
	frame #1: 0x00007fffb8276f6a libsystem_pthread.dylib`_pthread_mutex_lock_wait + 100
	frame #2: 0x0000000108bf108a mono64`sgen_gc_lock [inlined] mono_os_mutex_lock at mono-os-mutex.h:94 [opt]
	frame #3: 0x0000000108bf107e mono64`sgen_gc_lock [inlined] mono_coop_mutex_lock(mutex=<unavailable>) at mono-coop-mutex.h:53 [opt]
	frame #4: 0x0000000108bf1054 mono64`sgen_gc_lock at sgen-gc.c:3262 [opt]
	frame #5: 0x0000000108bf1381 mono64`sgen_deregister_root(addr="\b\b\x01") at sgen-gc.c:2594 [opt]
	frame #6: 0x0000000108b7281c mono64`mono_thread_detach_internal(thread=0x0000000108f4c508) at threads.c:1253 [opt]
	frame #7: 0x0000000108b79d51 mono64`start_wrapper [inlined] start_wrapper_internal at threads.c:878 [opt]
	frame #8: 0x0000000108b79af5 mono64`start_wrapper(data=<unavailable>) at threads.c:889 [opt]
	frame #9: 0x0000000108c3ac21 mono64`inner_start_thread(data=<unavailable>) at mono-threads.c:1170 [opt]
	frame #10: 0x00007fffb8276aab libsystem_pthread.dylib`_pthread_body + 180
	frame #11: 0x00007fffb82769f7 libsystem_pthread.dylib`_pthread_start + 286
	frame #12: 0x00007fffb8276221 libsystem_pthread.dylib`thread_start + 13
	(lldb) detach
	Process 56819 detached
	(lldb) quit

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

	Abort trap: 6