sgen-case-23400.cs

Hello.
Do you expect to error-free execution mono/tests/sgen-case-23400.cs when
setting
MONO_GC_DEBUG=check-nursery-pinned and MONO_GC_DEBUG=nursery-canaries ?

In my case I get an error:


D:\tmp>set MONO_GC_DEBUG=check-nursery-pinned
D:\tmp>mono-sgen sgen-case-23400.exe
* Assertion at ..\mono\metadata\sgen-debug.c:604, condition
`SGEN_OBJECT_IS_PINNED (obj)' not met


D:\tmp>set MONO_GC_DEBUG=nursery-canaries
D:\tmp>mono-sgen sgen-case-23400.exe
// An unhandled exception at 0x1018DF51 (monosgen-2.0.dll) in mono-sgen.exe:
0xC0000005: Access violation reading at 0x00000004.
// ((MonoObject*)obj)->vtable is NULL
// sgen-copy-object.h
static MONO_NEVER_INLINE void*
copy_object_no_checks (void *obj, SgenGrayQueue *queue)
{
	MonoVTable *vt = ((MonoObject*)obj)->vtable;
	gboolean has_references = SGEN_VTABLE_HAS_REFERENCES (vt);
...
}


D:\tmp>mono-sgen -V
Mono JIT compiler version 4.0.2 (Visual Studio built mono)
Copyright (C) 2002-2014 Novell, Inc, Xamarin Inc and Contributors.
www.mono-project.com
        TLS:           normal
        SIGSEGV:       normal
        Notification:  Thread + polling
        Architecture:  x86
        Disabled:      none
        Misc:          softdebug
        LLVM:          supported, not enabled.
        GC:            sgen




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