UseReleaseStack hangs at DestroyCleanupThread when registering COM dll on Win 2016 server

[algalg]

When I try to register a COM Dll compiles with FastMM 4.992 with the UseReleaseStack option enabled then registration using tregsvr hangs. Also adding the dll into a COM+ application hangs as well as registration using regsvr32.

The callstack created from a process dump point to FastMM4.DestroyCleanupThread

.  0  Id: 1158.ee8 Suspend: 0 Teb: 00000000`00298000 Unfrozen
Child-SP          RetAddr           Call Site
00000000`0014f7f8 00007fff`5e3c3ebf ntdll!NtWaitForSingleObject+0x14
*** WARNING: Unable to verify checksum for ValidateUser.dll
00000000`0014f800 00000000`021a1029 KERNELBASE!WaitForSingleObjectEx+0x8f
00000000`0014f8a0 00000000`021a1072 ValidateUser!FastMM4.DestroyCleanupThread+0x29
00000000`0014f8d0 00000000`021a112e ValidateUser!FastMM4.FinalizeMemoryManager+0x12
00000000`0014f900 00000000`0218d29a ValidateUser!FastMM4.Finalization+0x1e
00000000`0014f930 00000000`0218dc24 ValidateUser!System.FinalizeUnits+0x6a
00000000`0014f990 00000000`0218d4a3 ValidateUser!System.Halt0+0xc4
00000000`0014f9d0 00000000`02195662 ValidateUser!System.StartLib+0x123
00000000`0014fa20 00000000`024bbaa8 ValidateUser!SysInit.InitLib+0x92
00000000`0014fa90 00007fff`61c3389f ValidateUser!ValidateUser.ValidateUser+0x38
00000000`0014fb30 00007fff`61c26c89 ntdll!LdrpCallInitRoutine+0x4b
00000000`0014fb90 00007fff`61c28700 ntdll!LdrpProcessDetachNode+0xf5
00000000`0014fc60 00007fff`61c4a0b3 ntdll!LdrpUnloadNode+0x40
00000000`0014fcb0 00007fff`61c4a034 ntdll!LdrpDecrementModuleLoadCountEx+0x6b
00000000`0014fce0 00007fff`5e3a02cd ntdll!LdrUnloadDll+0x94
*** ERROR: Module load completed but symbols could not be loaded for tregsvr.exe
00000000`0014fd10 00000000`00543f8c KERNELBASE!FreeLibrary+0x1d
00000000`0014fd40 00000000`0054524c tregsvr+0x143f8c
00000000`0014fe40 00000000`0054ed47 tregsvr+0x14524c
00000000`0014fed0 00007fff`5f798364 tregsvr+0x14ed47
00000000`0014ff60 00007fff`61c7e851 kernel32!BaseThreadInitThunk+0x14
00000000`0014ff90 00000000`00000000 ntdll!RtlUserThreadStart+0x21

   1  Id: 1158.165c Suspend: 0 Teb: 00000000`0029a000 Unfrozen
Child-SP          RetAddr           Call Site
00000000`0089fb58 00007fff`61c39e4e ntdll!NtWaitForWorkViaWorkerFactory+0x14
00000000`0089fb60 00007fff`5f798364 ntdll!TppWorkerThread+0x76e
00000000`0089ff60 00007fff`61c7e851 kernel32!BaseThreadInitThunk+0x14
00000000`0089ff90 00000000`00000000 ntdll!RtlUserThreadStart+0x21

   2  Id: 1158.a4 Suspend: 0 Teb: 00000000`0029c000 Unfrozen
Child-SP          RetAddr           Call Site
00000000`02a4f8f8 00007fff`61c28691 ntdll!NtWaitForSingleObject+0x14
00000000`02a4f900 00007fff`61c31143 ntdll!LdrpDrainWorkQueue+0xe5
00000000`02a4f940 00007fff`61c8840d ntdll!LdrpInitializeThread+0xa3
00000000`02a4fa30 00007fff`61c8832e ntdll!_LdrpInitialize+0x89
00000000`02a4fab0 00000000`00000000 ntdll!LdrInitializeThunk+0xe

I guess there could be some kind of race condition.

The registration of the same DLL does not hang on Win 2012 Server or Win 7 machine.

[algalg]

I'd say, the issue is related to calling WaitForSingleObject while unloading the DLL.
https://stackoverflow.com/a/35833437