.Net app deadlock и GC

Я работаю над системой .net, которая при некоторых особых условиях (.net 2.20 И установленный .net 4.0) вызывает взаимоблокировку в одной из (win) служб. Используя WinDbg, я мог узнать, что:

В потоке 7:

0:007> !clrstack
OS Thread Id: 0xfec (7)
ESP       EIP     
03c9dbd8 7c90e514 [HelperMethodFrame_PROTECTOBJ: 03c9dbd8] System.Reflection.Assembly._nLoad(System.Reflection.AssemblyName, System.String, System.Security.Policy.Evidence, System.Reflection.Assembly, System.Threading.StackCrawlMark ByRef, Boolean, Boolean)
03c9dc70 79400e07 System.Reflection.Assembly.nLoad(System.Reflection.AssemblyName, System.String, System.Security.Policy.Evidence, System.Reflection.Assembly, System.Threading.StackCrawlMark ByRef, Boolean, Boolean)
03c9dc90 7935c5e0 System.Reflection.Assembly.InternalLoad(System.Reflection.AssemblyName, System.Security.Policy.Evidence, System.Threading.StackCrawlMark ByRef, Boolean)
03c9dcb8 7939b788 System.Reflection.Assembly.InternalLoadFrom(System.String, System.Security.Policy.Evidence, Byte[], System.Configuration.Assemblies.AssemblyHashAlgorithm, Boolean, System.Threading.StackCrawlMark ByRef)
03c9dcdc 7939b725 System.Reflection.Assembly.LoadFrom(System.String, System.Security.Policy.Evidence)
03c9dce4 79398fdb System.Activator.CreateInstanceFrom(System.String, System.String, Boolean, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo, System.Object[], System.Security.Policy.Evidence)
03c9dd10 79399653 System.AppDomain.CreateInstanceFrom(System.String, System.String)
03c9dd1c 793b8e39 System.AppDomain.CreateInstanceFromAndUnwrap(System.String, System.String)
03c9df48 79e7c0e3 [GCFrame: 03c9df48] 
03c9df64 79e7c0e3 [GCFrame: 03c9df64] 
03c9e0d4 79e7c0e3 [ContextTransitionFrame: 03c9e0d4] 
03c9e1d8 79e7c0e3 [GCFrame: 03c9e1d8] 
03c9e1bc 79e7c0e3 [GCFrame: 03c9e1bc] 
03c9f43c 79e7c0e3 [CustomGCFrame: 03c9f43c] 
03c9f450 79e7c0e3 [CustomGCFrame: 03c9f450] 
03c9f464 79e7c0e3 [CustomGCFrame: 03c9f464] 
03c9f478 79e7c0e3 [CustomGCFrame: 03c9f478] 
03c9f48c 79e7c0e3 [CustomGCFrame: 03c9f48c] 
03c9f4a0 79e7c0e3 [CustomGCFrame: 03c9f4a0] 
03c9f4b4 79e7c0e3 [CustomGCFrame: 03c9f4b4] 
03c9f880 79e7c0e3 [TPMethodFrame: 03c9f880] System.AppDomain.CreateInstanceFromAndUnwrap(System.String, System.String)
03c9f894 00a64498 Roche.RIG.CLink.DomainObject.Create[[System.__Canon, mscorlib]](System.String, Roche.RIG.CLink.CoreSystem.Interfaces.IBaseCoreSystem, Roche.RIG.CLink.TypeLifeManagementAction)
03c9f8dc 00acf220 Roche.RIG.SmartCom.DomainMgr.Load[[System.__Canon, mscorlib]](System.String)
03c9f92c 00acf075 Roche.RIG.SmartCom.DomainMgr.GetTunnel()
03c9f968 00acef05 Roche.RIG.SmartCom.CoreSystem.StartupTunnel(System.Object)
03c9f9b4 793e25cf System.Threading._ThreadPoolWaitCallback.WaitCallback_Context(System.Object)
03c9f9bc 79366b3d System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
03c9f9d4 793e2734 System.Threading._ThreadPoolWaitCallback.PerformWaitCallbackInternal(System.Threading._ThreadPoolWaitCallback)
03c9f9e8 793e26ac System.Threading._ThreadPoolWaitCallback.PerformWaitCallback(System.Object)
03c9fb78 79e7c0e3 [GCFrame: 03c9fb78]

и в другом потоке (поток 3):

0:003> !clrstack
OS Thread Id: 0xb08 (3)
ESP       EIP     
00d4eac4 7c90e514 [GCFrame: 00d4eac4] 
00d4faa4 7c90e514 [PrestubMethodFrame: 00d4faa4] Roche.RIG.SmartCom.CoreSystem.StartupTasks(System.Object)
00d4fab4 793e25cf System.Threading._ThreadPoolWaitCallback.WaitCallback_Context(System.Object)
00d4fabc 79366b3d System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
00d4fad4 793e2734 System.Threading._ThreadPoolWaitCallback.PerformWaitCallbackInternal(System.Threading._ThreadPoolWaitCallback)
00d4fae8 793e26ac System.Threading._ThreadPoolWaitCallback.PerformWaitCallback(System.Object)
00d4fc78 79e7c0e3 [GCFrame: 00d4fc78]

Вывод ! locks

0:007> !locks

CritSec +157d20 at 00157d20
LockCount          1
RecursionCount     1
OwningThread       fec
EntryCount         1
ContentionCount    1
*** Locked

CritSec wininet!GlobalCacheCritSect+0 at 7723ba38
LockCount          4
RecursionCount     4
OwningThread       b08
EntryCount         1
ContentionCount    1
*** Locked

CritSec +1a1310 at 001a1310
LockCount          0
RecursionCount     1
OwningThread       b08
EntryCount         0
ContentionCount    0
*** Locked

Scanned 1212 critical sections

Вывод syncblk

0:003> !syncblk
Index SyncBlock MonitorHeld Recursion Owning Thread Info  SyncBlock Owner
-----------------------------
Total           370
CCW             1
RCW             319
ComClassFactory 0
Free            0

Вывод ~ * kv 90

    0:007> ~*kv 90

       0  Id: ebc.edc Suspend: 1 Teb: 7ffdd000 Unfrozen
    ChildEBP RetAddr  Args to Child              
    0012f090 7c90d9da 7c801879 000001a4 00000000 ntdll!KiFastSystemCallRet (FPO: [0,0,0])
    0012f094 7c801879 000001a4 00000000 00000000 ntdll!NtReadFile+0xc (FPO: [9,0,0])
    0012f0fc 77df348b 000001a4 0012f1c8 00000216 kernel32!ReadFile+0x16c (FPO: [Non-Fpo])
    0012f128 77df331f 000001a4 0012f1c8 00000216 advapi32!ScGetPipeInput+0x2a (FPO: [Non-Fpo])
    0012f19c 77df3628 000001a4 0012f1c8 00000216 advapi32!ScDispatcherLoop+0x3f (FPO: [Non-Fpo])
    0012f3fc 006ea31e 0019c3f8 a82bfd52 00000000 advapi32!StartServiceCtrlDispatcherW+0xe3 (FPO: [Non-Fpo])
    *** WARNING: Unable to verify checksum for System.ServiceProcess.ni.dll
    WARNING: Frame IP not in any known module. Following frames may be wrong.
    0012f418 67a241d2 0106174c 01061ab0 0019c400 0x6ea31e
    00000000 00000000 00000000 00000000 00000000 System_ServiceProcess_ni+0x41d2

       1  Id: ebc.d1c Suspend: 1 Teb: 7ffdc000 Unfrozen
    ChildEBP RetAddr  Args to Child              
    0082fe38 7c90df4a 7c809590 00000003 0082fe64 ntdll!KiFastSystemCallRet (FPO: [0,0,0])
    0082fe3c 7c809590 00000003 0082fe64 00000001 ntdll!ZwWaitForMultipleObjects+0xc (FPO: [5,0,0])
    0082fed8 7c80a115 00000003 0082ff1c 00000000 kernel32!WaitForMultipleObjectsEx+0x12c (FPO: [Non-Fpo])
    0082fef4 79ed25eb 00000003 0082ff1c 00000000 kernel32!WaitForMultipleObjects+0x18 (FPO: [Non-Fpo])
    0082ff54 79ed2548 a8b35c0c 00000000 79ece48c mscorwks!DebuggerRCThread::MainLoop+0xe9 (FPO: [Non-Fpo])
    0082ff84 79ed2477 a8b35c3c 79eb4145 79ece48c mscorwks!DebuggerRCThread::ThreadProc+0xe5 (FPO: [Non-Fpo])
    0082ffb4 7c80b729 00000000 79eb4145 79ece48c mscorwks!DebuggerRCThread::ThreadProcStatic+0x9c (FPO: [Non-Fpo])
    0082ffec 00000000 79ed2431 00000000 00000000 kernel32!BaseThreadStart+0x37 (FPO: [Non-Fpo])

       2  Id: ebc.104 Suspend: 1 Teb: 7ffdb000 Unfrozen
    ChildEBP RetAddr  Args to Child              
    009ffcd0 7c90df4a 7c809590 00000002 009ffcfc ntdll!KiFastSystemCallRet (FPO: [0,0,0])
    009ffcd4 7c809590 00000002 009ffcfc 00000001 ntdll!ZwWaitForMultipleObjects+0xc (FPO: [5,0,0])
    009ffd70 7c80a115 00000002 7a3b9248 00000000 kernel32!WaitForMultipleObjectsEx+0x12c (FPO: [Non-Fpo])
    009ffd8c 79e719ab 00000002 7a3b9248 00000000 kernel32!WaitForMultipleObjects+0x18 (FPO: [Non-Fpo])
    009ffdac 79ef8cd9 0016e5d0 009ffeb0 0016edc8 mscorwks!WKS::WaitForFinalizerEvent+0x77 (FPO: [Non-Fpo])
    009ffdc0 79ebab37 009ffeb0 00000000 00000000 mscorwks!WKS::GCHeap::FinalizerThreadWorker+0x79 (FPO: [Non-Fpo])
    009ffdd4 79ebaad3 009ffeb0 009ffe5c 79f495f5 mscorwks!Thread::DoADCallBack+0x32a (FPO: [Non-Fpo])
    009ffe68 79eba9f7 009ffeb0 a8ae5d2c 00000000 mscorwks!Thread::ShouldChangeAbortToUnload+0xe3 (FPO: [Non-Fpo])
    009ffea4 79ebbe48 009ffeb0 00000000 00158500 mscorwks!Thread::ShouldChangeAbortToUnload+0x30a (FPO: [Non-Fpo])
    009ffecc 79ebbe12 79ef8c6c 00000008 009fff14 mscorwks!ManagedThreadBase_NoADTransition+0x32 (FPO: [Non-Fpo])
    009ffedc 79ebb42b 79ef8c6c a8ae5c9c 00000000 mscorwks!ManagedThreadBase::FinalizerBase+0xd (FPO: [Non-Fpo])
    009fff14 79ebaf8e 00000000 8706da80 804fb078 mscorwks!WKS::GCHeap::FinalizerThreadStart+0xbb (FPO: [Non-Fpo])
    009fffb4 7c80b729 0016edc8 00730074 00610020 mscorwks!Thread::intermediateThreadProc+0x49 (FPO: [Non-Fpo])
    009fffec 00000000 79ebaf48 0016edc8 00000000 kernel32!BaseThreadStart+0x37 (FPO: [Non-Fpo])

       3  Id: ebc.b08 Suspend: 1 Teb: 7ffd9000 Unfrozen
    ChildEBP RetAddr  Args to Child              
    00d4d7a0 7c90df5a 7c91b24b 00000610 00000000 ntdll!KiFastSystemCallRet (FPO: [0,0,0])
    00d4d7a4 7c91b24b 00000610 00000000 00000000 ntdll!ZwWaitForSingleObject+0xc (FPO: [3,0,0])
    00d4d82c 7c901046 00157d20 7a08a990 00157d20 ntdll!RtlpWaitForCriticalSection+0x132 (FPO: [Non-Fpo])
    00d4d834 7a08a990 00157d20 79e83b8f 00157d20 ntdll!RtlEnterCriticalSection+0x46 (FPO: [1,0,0])
    00d4d83c 79e83b8f 00157d20 a8e57bf0 001dac60 mscorwks!UnsafeEEEnterCriticalSection+0x18 (FPO: [1,0,0])
    00d4d878 79e75c62 00d4d88c 79e75c56 00157d20 mscorwks!CrstBase::Enter+0x13c (FPO: [Non-Fpo])
    00d4d880 79e75c56 00157d20 00d4d89c 79e75c4a mscorwks!EEEnterCriticalSection+0xb (FPO: [Non-Fpo])
    00d4d88c 79e75c4a 7a3c38b0 00157d20 00d4df10 mscorwks!CExecutionEngine::AcquireLock+0xb (FPO: [Non-Fpo])
    00d4d89c 79eec124 00157d20 8000000a 7a195ccc mscorwks!ClrEnterCriticalSection+0x11 (FPO: [Non-Fpo])
    00d4d8a8 7a195ccc a8e57c98 0385d008 8000000a mscorwks!CCriticalSection::Lock+0x17 (FPO: [0,0,4])
    00d4df10 7a196399 00000001 00000001 80070002 mscorwks!CDebugLog::DumpDebugLog+0x5b (FPO: [Non-Fpo])
    00d4df24 7a17d78f 001dac60 00000001 00000001 mscorwks!CDebugLog::Flush+0x53 (FPO: [Non-Fpo])
    00d4df94 79ef3441 03858a40 79eef384 00000000 mscorwks!CAssemblyName::BindToObject+0x674 (FPO: [Non-Fpo])
    00d4e00c 79ef3261 00173918 00d4dfe0 03858a30 mscorwks!FusionBind::RemoteLoad+0x14d (FPO: [Non-Fpo])
    00d4e094 79ef3078 00173918 00179dd0 00d4e464 mscorwks!FusionBind::LoadAssembly+0x127 (FPO: [Non-Fpo])
    00d4e340 79ef0503 00158500 00000001 00d4e464 mscorwks!AssemblySpec::FindAssemblyFile+0xdc (FPO: [Non-Fpo])
    00d4e4ac 79ee1a9a 00d4e4d4 00000001 00000000 mscorwks!AppDomain::BindAssemblySpec+0x18d (FPO: [Non-Fpo])

00d4e544 79ee1958 23000010 00000000 a8e5466c mscorwks!PEFile::LoadAssembly+0x95 (FPO: [Non-Fpo])
00d4e5e4 79f07846 00158500 23000010 a8e545a8 mscorwks!Module::LoadAssembly+0xee (FPO: [Non-Fpo])
00d4e620 79ef70d9 006f4c1c 010000a3 00000000 mscorwks!Assembly::FindModuleByTypeRef+0x113 (FPO: [Non-Fpo])
00d4e670 79e82979 00d4e704 00000000 00000000 mscorwks!ClassLoader::LoadTypeDefOrRefThrowing+0xfc (FPO: [Non-Fpo])
00d4e6a0 79e9ecb3 00d4e704 006f4c1c 010000a3 mscorwks!ClassLoader::LoadTypeDefOrRefOrSpecThrowing+0xa0 (FPO: [Non-Fpo])
00d4e734 79e9bab0 006f4c1c 0a000148 00d4e9c4 mscorwks!MemberLoader::GetDescFromMemberDefOrRefThrowing+0x210 (FPO: [Non-Fpo])
00d4e9bc 79efa4a9 00000001 0a000148 00d4eb08 mscorwks!MemberLoader::GetMethodDescFromMemberDefOrRefOrSpecThrowing+0x219 (FPO: [Non-Fpo])
00d4ea48 79efaf4b 006f4c1c 0a000148 00d4eb40 mscorwks!MemberLoader::GetMethodDescFromMemberDefOrRefOrSpecNT+0x76 (FPO: [Non-Fpo])
00d4eb50 79efae1f 006f4c1c 0a000148 006f5718 mscorwks!CEEInfo::findMethodInternal+0x154 (FPO: [Non-Fpo])
00d4ebd0 79061fd6 00d4f5bc 006f4c1c 8a000101 mscorwks!CEEInfo::findMethod+0x107 (FPO: [Non-Fpo])
00d4ebe8 7906535a 8a000148 006f4c1c 006f5718 mscorjit!Compiler::eeFindMethod+0x22 (FPO: [Non-Fpo])
00d4ecb8 79063324 00000028 0a000148 baadbeef mscorjit!Compiler::impImportCall+0xa7 (FPO: [Non-Fpo])
00d4f290 790635c3 00b52c70 807e6cc2 00b53250 mscorjit!Compiler::impImportBlockCode+0x29ae (FPO: [Non-Fpo])
00d4f314 7906355b 00b52c70 00000000 00b50010 mscorjit!Compiler::impImportBlock+0x20c (FPO: [Non-Fpo])
00d4f32c 79063494 00b52bb8 00b50010 79064e1c mscorjit!Compiler::impImport+0xe5 (FPO: [Non-Fpo])
00d4f338 79064e1c 00b50010 00d4f39c 790614e6 mscorjit!Compiler::fgImport+0x20 (FPO: [0,0,4])
00d4f344 790614e6 00d4f464 00d4f6c8 00d4f458 mscorjit!Compiler::compCompile+0xb (FPO: [Non-Fpo])
00d4f39c 79061236 006f4c1c 00d4f5b0 00d4f63c mscorjit!Compiler::compCompile+0x2df (FPO: [Non-Fpo])
00d4f430 7906118c 00d4f5b0 00d4f63c 00d4f464 mscorjit!jitNativeCode+0xb8 (FPO: [Non-Fpo])
00d4f468 79efd49f 790b22a0 00d4f5b0 00d4f63c mscorjit!CILJit::compileMethod+0x3d (FPO: [Non-Fpo])
00d4f4d4 79efd415 00191950 00d4f5b0 00d4f63c mscorwks!invokeCompileMethodHelper+0x72 (FPO: [Non-Fpo])
00d4f518 79efd3a7 00191950 00d4f5b0 00d4f63c mscorwks!invokeCompileMethod+0x31 (FPO: [Non-Fpo])
00d4f570 79ef9c64 00191950 00d4f5b0 00000000 mscorwks!CallCompileMethodWithSEHWrapper+0x84 (FPO: [Non-Fpo])
00d4f928 79ef9a68 006f5718 001d9938 00107210 mscorwks!UnsafeJitFunction+0x230 (FPO: [Non-Fpo])
00d4f9cc 79ef9905 001d9938 00000000 a8e559ac mscorwks!MethodDesc::MakeJitWorker+0x1c1 (FPO: [Non-Fpo])
00d4fa24 79e79091 00000000 a8e559fc 00d4fc78 mscorwks!MethodDesc::DoPrestub+0x486 (FPO: [Non-Fpo])
00d4fa74 003c1efe 00d4faa4 a82bfd52 010646c4 mscorwks!PreStubWorker+0xeb (FPO: [Non-Fpo])
WARNING: Frame IP not in any known module. Following frames may be wrong.
00d4fa8c 793e25cf 00000000 011509f0 01063ff4 0x3c1efe
00d4faac 793e25cf 01150a08 79366b3d 00d4fae0 mscorlib_ni+0x3225cf
00d4fab4 79366b3d 00d4fae0 006f2010 011509f0 mscorlib_ni+0x3225cf
00d4fac8 793e2734 011509f0 00000000 0206101c mscorlib_ni+0x2a6b3d
00d4fae0 793e26ac 00d4fb04 00d4fb20 0019f9e0 mscorlib_ni+0x322734
00d4faf4 79e7c0e3 a8e558a4 7915faa4 00d4fb84 mscorlib_ni+0x3226ac
00000000 00000000 00000000 00000000 00000000 mscorwks!CallDescrWorker+0x33

   4  Id: ebc.b54 Suspend: 1 Teb: 7ffd8000 Unfrozen
ChildEBP RetAddr  Args to Child              
00fafe14 7c90daaa 77e765e3 000002bc 00faff74 ntdll!KiFastSystemCallRet (FPO: [0,0,0])
00fafe18 77e765e3 000002bc 00faff74 00000000 ntdll!NtReplyWaitReceivePortEx+0xc (FPO: [5,0,0])
00faff80 77e76caf 00faffa8 77e76ad1 001994d8 rpcrt4!LRPC_ADDRESS::ReceiveLotsaCalls+0x12a (FPO: [Non-Fpo])
00faff88 77e76ad1 001994d8 00000000 00d4ebe8 rpcrt4!RecvLotsaCallsWrapper+0xd (FPO: [Non-Fpo])
00faffa8 77e76c97 0017a9b0 00faffec 7c80b729 rpcrt4!BaseCachedThreadRoutine+0x79 (FPO: [Non-Fpo])
00faffb4 7c80b729 00199218 00000000 00d4ebe8 rpcrt4!ThreadStartRoutine+0x1a (FPO: [Non-Fpo])
00faffec 00000000 77e76c7d 00199218 00000000 kernel32!BaseThreadStart+0x37 (FPO: [Non-Fpo])

   5  Id: ebc.194 Suspend: 1 Teb: 7ffd6000 Unfrozen
ChildEBP RetAddr  Args to Child              
0382fce8 7c90df4a 7c929cb6 00000015 0382fd30 ntdll!KiFastSystemCallRet (FPO: [0,0,0])
0382fcec 7c929cb6 00000015 0382fd30 00000001 ntdll!ZwWaitForMultipleObjects+0xc (FPO: [5,0,0])
0382ffb4 7c80b729 00000000 7c80ae40 0000ffff ntdll!RtlpWaitThread+0x13d (FPO: [Non-Fpo])
0382ffec 00000000 7c929b8f 00000000 00000000 kernel32!BaseThreadStart+0x37 (FPO: [Non-Fpo])

   6  Id: ebc.e9c Suspend: 1 Teb: 7ffd4000 Unfrozen
ChildEBP RetAddr  Args to Child              
03a2fec8 7c90df4a 7c809590 00000003 03a2fef4 ntdll!KiFastSystemCallRet (FPO: [0,0,0])
03a2fecc 7c809590 00000003 03a2fef4 00000001 ntdll!ZwWaitForMultipleObjects+0xc (FPO: [5,0,0])
03a2ff68 7c80a115 00000003 76a61348 00000000 kernel32!WaitForMultipleObjectsEx+0x12c (FPO: [Non-Fpo])
03a2ff84 769c87bd 00000003 76a61348 00000000 kernel32!WaitForMultipleObjects+0x18 (FPO: [Non-Fpo])
03a2ffb4 7c80b729 00000000 00000000 00000000 userenv!NotificationThread+0x5f (FPO: [Non-Fpo])
03a2ffec 00000000 769c8761 00000000 00000000 kernel32!BaseThreadStart+0x37 (FPO: [Non-Fpo])

   7  Id: ebc.fec Suspend: 1 Teb: 7ff4f000 Unfrozen
ChildEBP RetAddr  Args to Child              
03c9ccd8 7c90df5a 7c91b24b 0000060c 00000000 ntdll!KiFastSystemCallRet (FPO: [0,0,0])
03c9ccdc 7c91b24b 0000060c 00000000 00000000 ntdll!ZwWaitForSingleObject+0xc (FPO: [3,0,0])
03c9cd64 7c901046 0023ba38 771c9bb8 7723ba38 ntdll!RtlpWaitForCriticalSection+0x132 (FPO: [Non-Fpo])
03c9cd6c 771c9bb8 7723ba38 00000003 038609b0 ntdll!RtlEnterCriticalSection+0x46 (FPO: [1,0,0])
03c9cd8c 7722065c 03869218 00000000 00237788 wininet!CConMgr::CreateUniqueFile+0x21 (FPO: [Non-Fpo])
03c9cdb0 7722127e 03869218 00000000 00237788 wininet!CreateUrlCacheEntryA+0x5d (FPO: [Non-Fpo])
03c9ce04 7a195a5a 03872320 00000000 7a195fe4 wininet!CreateUrlCacheEntryW+0x183 (FPO: [Non-Fpo])
03c9ce64 7a195dcb 03872320 00000000 7a195fe4 mscorwks!CreateUrlCacheEntryW_NoThrow+0x30 (FPO: [Non-Fpo])
03c9d4e0 7a196399 00000001 00000001 80070002 mscorwks!CDebugLog::DumpDebugLog+0x130 (FPO: [Non-Fpo])
03c9d4f4 7a17d78f 03864b60 00000001 00000001 mscorwks!CDebugLog::Flush+0x53 (FPO: [Non-Fpo])
03c9d564 79ef3441 038659f8 79eef384 00000000 mscorwks!CAssemblyName::BindToObject+0x674 (FPO: [Non-Fpo])
03c9d5dc 79f785cb 038654c0 03c9d5b0 038659e8 mscorwks!FusionBind::RemoteLoad+0x14d (FPO: [Non-Fpo])
03c9d664 79ef3078 038654c0 038659b0 03c9da34 mscorwks!FusionBind::LoadAssembly+0x223 (FPO: [Non-Fpo])
03c9d910 79ef0503 03862758 00000001 03c9da34 mscorwks!AssemblySpec::FindAssemblyFile+0xdc (FPO: [Non-Fpo])
03c9da7c 79edf037 03c9db70 00000001 00000000 mscorwks!AppDomain::BindAssemblySpec+0x18d (FPO: [Non-Fpo])
03c9dae4 79f1d707 0000000b 00000000 03c9dc3c mscorwks!AssemblySpec::LoadDomainAssembly+0x114 (FPO: [Non-Fpo])
03c9db08 79f22e94 0000000b 00000000 03c9dc3c mscorwks!AssemblySpec::LoadAssembly+0x1d (FPO: [Non-Fpo])
03c9dc54 79400e07 00000000 00000001 03c9dcdc mscorwks!AssemblyNative::Load+0x240 (FPO: [Non-Fpo])
03c9dca8 7939b788 00000000 03c9dcdc 03c9dcec mscorlib_ni+0x340e07
03c9dcdc 79398fdb 03837a00 00000000 03c9dd2c mscorlib_ni+0x2db788
03c9dcec 79399653 00000000 00000000 00000000 mscorlib_ni+0x2d8fdb
03c9dd2c 79e7c068 03c9e154 00000001 03c9e224 mscorlib_ni+0x2d9653
03c9ddac 79f290ba 03c9e154 00000001 03c9e224 mscorwks!CallDescrWorkerWithHandler+0xa3 (FPO: [Non-Fpo])
03c9ddcc 79f29061 03c9e150 00000001 03c9e224 mscorwks!DispatchCallBody+0x1e (FPO: [Non-Fpo])
03c9de30 79f50be1 03c9e150 00000001 03c9e224 mscorwks!DispatchCallDebuggerWrapper+0x3d (FPO: [Non-Fpo])
03c9ded8 79f558f9 03c9e150 00000001 03c9e224 mscorwks!DispatchCall+0xb3 (FPO: [Non-Fpo])
03c9e094 79f54e3c 03c9e268 03c9e13c 79f54e03 mscorwks!CrossDomainChannel::MarshalAndCall_Wrapper+0x4ad (FPO: [Non-Fpo])
03c9e0a0 79f54e03 03c9e268 03c9e130 79f495f5 mscorwks!MarshalAndCall_Wrapper2+0xf (FPO: [Non-Fpo])
03c9e13c 79f55507 00000002 79fa10af 03c9e268 mscorwks!MakeCallWithAppDomainTransition+0xbc (FPO: [Non-Fpo])
03c9f61c 79f51053 03c9f858 abf855e4 03c9f6f0 mscorwks!CrossDomainChannel::MarshalAndCall+0x7a6 (FPO: [Non-Fpo])
03c9f66c 79f50fd8 03c9f858 abf8553c 03c9f880 mscorwks!CrossDomainChannel::ExecuteCrossDomainCall+0x7d (FPO: [Non-Fpo])
03c9f6b4 79f50ea0 03c9f880 03c9f858 abf85bc8 mscorwks!CrossDomainChannel::CheckCrossDomainCall+0xdd (FPO: [Non-Fpo])
03c9f840 003c253d 03c9f880 03837a00 03c9f858 mscorwks!CTPMethodTable::OnCall+0xa6 (FPO: [Non-Fpo])
WARNING: Frame IP not in any known module. Following frames may be wrong.
03c9f8e4 79e790d2 0115229c 01064430 00000000 0x3c253d
03c9f98c 793e25cf 00000000 01150994 01063ff4 mscorwks!PreStubWorker+0x139 (FPO: [Non-Fpo])
03c9f9ac 793e25cf 011509ac 79366b3d 03c9f9e0 mscorlib_ni+0x3225cf
03c9f9b4 79366b3d 03c9f9e0 006f2010 01150994 mscorlib_ni+0x3225cf
03c9f9c8 793e2734 01150994 00000000 0206101c mscorlib_ni+0x2a6b3d
03c9f9e0 793e26ac 03c9fa04 03c9fa20 03837a00 mscorlib_ni+0x322734
03c9f9f4 79e7c0e3 746e696f 00007265 03c9fa84 mscorlib_ni+0x3226ac
00000000 00000000 00000000 00000000 00000000 mscorwks!CallDescrWorker+0x33

   8  Id: ebc.c84 Suspend: 1 Teb: 7ff4e000 Unfrozen
ChildEBP RetAddr  Args to Child              
03d9fe08 7c90d21a 7c8023f1 00000000 03d9fe3c ntdll!KiFastSystemCallRet (FPO: [0,0,0])
03d9fe0c 7c8023f1 00000000 03d9fe3c 00000000 ntdll!NtDelayExecution+0xc (FPO: [2,0,0])
03d9fe64 79f4c26f 000001f4 00000000 abe85d10 kernel32!SleepEx+0x61 (FPO: [Non-Fpo])
03d9fe98 79f270ec 000001f4 00000000 abe85d5c mscorwks!EESleepEx+0xa3 (FPO: [Non-Fpo])
03d9fed4 79f27090 000001f4 00000000 03d9ffb4 mscorwks!__DangerousSwitchToThread+0x75 (FPO: [Non-Fpo])
03d9fee4 79f4c122 000001f4 12b60d16 0000000a mscorwks!__SwitchToThread+0xd (FPO: [Non-Fpo])
03d9ffb4 7c80b729 00000000 7c910222 7c91019b mscorwks!ThreadpoolMgr::GateThreadStart+0xa1 (FPO: [Non-Fpo])
03d9ffec 00000000 79f4c08d 00000000 00000000 kernel32!BaseThreadStart+0x37 (FPO: [Non-Fpo])

   9  Id: ebc.e34 Suspend: 1 Teb: 7ff4c000 Unfrozen
ChildEBP RetAddr  Args to Child              
0411febc 7c90df4a 7c809590 00000002 0411fee8 ntdll!KiFastSystemCallRet (FPO: [0,0,0])
0411fec0 7c809590 00000002 0411fee8 00000001 ntdll!ZwWaitForMultipleObjects+0xc (FPO: [5,0,0])
0411ff5c 7c80a115 00000002 0411ff9c 00000000 kernel32!WaitForMultipleObjectsEx+0x12c (FPO: [Non-Fpo])
0411ff78 60f83739 00000002 0411ff9c 00000000 kernel32!WaitForMultipleObjects+0x18 (FPO: [Non-Fpo])
0411ffac 60f83763 0411ffec 7c80b729 60f8c2b8 mqutil!CCancelRpc::ProcessEvents+0x7b (FPO: [Non-Fpo])
0411ffb4 7c80b729 60f8c2b8 7c912d78 00000000 mqutil!CCancelRpc::CancelThread+0xd (FPO: [Non-Fpo])
0411ffec 00000000 60f83756 60f8c2b8 00000000 kernel32!BaseThreadStart+0x37 (FPO: [Non-Fpo])

  10  Id: ebc.3d8 Suspend: 1 Teb: 7ffda000 Unfrozen
ChildEBP RetAddr  Args to Child              
0426fb38 7c90df5a 7c8025db 000000cc 00000000 ntdll!KiFastSystemCallRet (FPO: [0,0,0])
0426fb3c 7c8025db 000000cc 00000000 00000000 ntdll!ZwWaitForSingleObject+0xc (FPO: [3,0,0])
0426fba0 79e718ff 000000cc ffffffff 00000000 kernel32!WaitForSingleObjectEx+0xa8 (FPO: [Non-Fpo])
0426fbe4 79e718c8 000000cc ffffffff 00000000 mscorwks!PEImage::LoadImage+0x1af (FPO: [Non-Fpo])
0426fc34 79e7187d ffffffff 00000000 00000000 mscorwks!CLREvent::WaitEx+0x117 (FPO: [Non-Fpo])
0426fc48 79f6694c ffffffff 00000000 00000000 mscorwks!CLREvent::Wait+0x17 (FPO: [Non-Fpo])
0426fd14 79ebaf8e 03862390 7c90d06a 7c90e45f mscorwks!AppDomain::ADUnloadThreadStart+0x308 (FPO: [Non-Fpo])
0426ffb4 7c80b729 03848570 00000000 03837a00 mscorwks!Thread::intermediateThreadProc+0x49 (FPO: [Non-Fpo])
0426ffec 00000000 79ebaf48 03848570 00000000 kernel32!BaseThreadStart+0x37 (FPO: [Non-Fpo])

# 11  Id: ebc.a10 Suspend: 1 Teb: 7ffd7000 Unfrozen
ChildEBP RetAddr  Args to Child              
00b9ffc8 7c951e40 00000005 00000004 00000001 ntdll!DbgBreakPoint (FPO: [0,0,0])
00b9fff4 00000000 00000000 00905a4d 00000003 ntdll!DbgUiRemoteBreakin+0x2d (FPO: [Non-Fpo])

Sorr y для длинной вставки ...

Теперь в коде есть длинный список зависимостей, некоторые из них управляемые (.net 1.0, 1.1, 2.0), а некоторые неуправляемые. Ни один из 'syncblk', 'locks' или 'dlk' (от sosex) ничего не показывает, но есть тупик, и об этом сообщает DebugDiag, анализируя дамп памяти (и служба заблокирована, не выполняя любая обработка).

Учитывая мое плохое знание WinDbg, как я могу выяснить настоящую причину этого тупика? Или убедитесь, что я могу этого избежать?

Проблема появляется только тогда, когда также установлен .net 4.0. Я знаю, что фреймворк загружает последнюю версию mscoreei.dll , но это, похоже, только катализатор, а не настоящая причина. И проблема во всех сценариях, похоже, связана с тупиковой ситуацией между загрузкой dll и сборщиком мусора (и это может быть вызвано загрузкой другой службы win). Все управляемые потоки помечены как PreEmptive GC "Включено".

Система - WinXP + SP3 + .net 2.0 + SP1 / SP2 и + .net 4.0.

Спасибо, флорин