Essential WinDBG info

0:000> ~44 kP
same as 2984
ChildEBP RetAddr
1245f654 77558e44 ntdll!ZwWaitForSingleObject+0x15
1245f6b8 77558d28 ntdll!RtlpWaitOnCriticalSection+0x13e
1245f6e0 57ccedf9 ntdll!RtlEnterCriticalSection+0x150
1245f6f0 57cd1c67 msvcr120!_lock(
            int locknum = 0n1473908264)+0x31 [f:\dd\vctools\crt\crtw32\startup\mlock.c @ 340]
1245f724 57cd1a05 msvcr120!_initptd(
            struct _tiddata * ptd = 0x050de640,
            struct threadlocaleinfostruct * ptloci = 0x00000000)+0x6a [f:\dd\vctools\crt\crtw32\startup\tidtable.c @ 233]
1245f75c 57cd1a5f msvcr120!__CRTDLL_INIT(
            void * hDllHandle = 0x57cc0000,
            unsigned long dwReason = 2,
            void * lpreserved = 0x00000000)+0x153 [f:\dd\vctools\crt\crtw32\dllstuff\crtlib.c @ 401]
1245f770 775599a0 msvcr120!_CRTDLL_INIT(
            void * hDllHandle = 0x57cc0000,
            unsigned long dwReason = 2,
            void * lpreserved = 0x00000000)+0x1c [f:\dd\vctools\crt\crtw32\dllstuff\crtlib.c @ 214]
1245f790 7755a1e6 ntdll!LdrpCallInitRoutine+0x14
1245f830 77559ecc ntdll!LdrpInitializeThread+0x15b
1245f87c 77559ef9 ntdll!_LdrpInitialize+0x1ad
1245f88c 00000000 ntdll!LdrInitializeThunk+0x10

0:000> ~23 kP
same as 19a4
ChildEBP RetAddr
0e695384 75d014ab ntdll!ZwWaitForSingleObject+0x15
0e6953f0 76b71194 KERNELBASE!WaitForSingleObjectEx+0x98
0e695408 76b71148 kernel32!WaitForSingleObjectExImplementation+0x75
0e69541c 5a28a172 kernel32!WaitForSingleObject+0x12
0e69558c 5a2880bd sqlncli10!Tcp::ReadSync+0x1c6
0e6955a4 5a28812a sqlncli10!SNIReadSync+0x5a
0e6955bc 5a288736 sqlncli10!BATCHCTX::SNIRead+0x52
0e6955f0 5a28a298 sqlncli10!BATCHCTX::ReadPacket+0x3f
0e69560c 5a287fa2 sqlncli10!BATCHCTX::GetBytes+0x146
0e69563c 5a2ae007 sqlncli10!BATCHCTX::Run+0x68
0e695694 5a3604e5 sqlncli10!ProcessTDSStream+0x395
0e6956dc 5a34fee0 sqlncli10!ExecRPCImmediate+0x46a
0e695748 5a3503e3 sqlncli10!PrepareExecutePrepExecRPC+0x437
0e6957c4 6d92a735 sqlncli10!SQLExecute+0x459
0e6957e4 55057562 odbc32!SQLExecute+0x2c1
WARNING: Stack unwind information not available. Following frames may be wrong.
0e695800 55061418 otl_odbc+0x7562
0e696908 5505f195 otl_odbc+0x11418
0e69cec4 5505dcc8 otl_odbc+0xf195
0e69ced8 5507474a otl_odbc+0xdcc8
0e69ceec 55089534 otl_odbc+0x2474a
0e69cf84 017f0108 otl_odbc!Common::db::otl::Session::Session+0x3de4
0e69cfd0 0181bcf1 UnifiedFormatProcessor+0x50108
0e69cfdc 0181a69f UnifiedFormatProcessor+0x7bcf1
0e69d294 0181ad25 UnifiedFormatProcessor+0x7a69f
0e69d2a4 0181bc0f UnifiedFormatProcessor+0x7ad25
0e69d2b4 018491d6 UnifiedFormatProcessor+0x7bc0f
0e69d2c4 017f830a UnifiedFormatProcessor!UnifiedFormat::DocumentCirc::FinishedUpdaterFactory::FinishedUpdaterFactory+0x906
0e69d2f4 018197fd UnifiedFormatProcessor+0x5830a
0e69d430 01818f71 UnifiedFormatProcessor+0x797fd
0e69f7b8 01827ba0 UnifiedFormatProcessor+0x78f71
0e69f8f8 01826824 UnifiedFormatProcessor+0x87ba0
0e69fac4 01827de8 UnifiedFormatProcessor+0x86824
0e69fad0 0182888f UnifiedFormatProcessor+0x87de8
0e69fadc 01828155 UnifiedFormatProcessor+0x8888f
0e69faf4 0182a04f UnifiedFormatProcessor+0x88155
0e69fb04 01829f10 UnifiedFormatProcessor+0x8a04f
0e69fb14 57bbf33c UnifiedFormatProcessor+0x89f10
0e69fb3c 57cec01d msvcp120!_Call_func(
            void * _Data = 0x0cdee39c)+0x17 [f:\dd\vctools\crt\crtw32\stdcpp\thr\threadcall.cpp @ 28]
0e69fb74 57cec001 msvcr120!_callthreadstartex(void)+0x1b [f:\dd\vctools\crt\crtw32\startup\threadex.c @ 376]
0e69fb80 76b7338a msvcr120!_threadstartex(
            void * ptd = <Value unavailable error>)+0x7c [f:\dd\vctools\crt\crtw32\startup\threadex.c @ 354]
0e69fb8c 77559f72 kernel32!BaseThreadInitThunk+0xe
0e69fbcc 77559f45 ntdll!__RtlUserThreadStart+0x70
0e69fbe4 00000000 ntdll!_RtlUserThreadStart+0x1b

0:000> !threads
Index   TID         TEB             StackBase           StackLimit          DeAlloc         StackSize           ThreadProc
0   00002b7c    0x7efdd000  0x00310000  0x002fe000  0x00210000  0x00012000  0x0
...
23  000019a4    0x7ef55000  0x0e6a0000  0x0e68e000  0x0e5a0000  0x00012000  0x0
...
44  00002984    0x7ef9d000  0x12460000  0x1245e000  0x12360000  0x00002000  0x0
...
49  00002154    0x7ef2e000  0x12c30000  0x12c2f000  0x12b30000  0x00001000  0x0
Total VM consumed by thread stacks 0x001a2000

0:000> !locks

CritSec ntdll!LdrpLoaderLock+0 at 776220c0
WaiterWoken        No
LockCount          16
RecursionCount     1
OwningThread       2984 same as 44
EntryCount         0
ContentionCount    113
*** Locked

CritSec msvcr120!lclcritsects+c0 at 57da0e28
WaiterWoken        No
LockCount          12
RecursionCount     1
OwningThread       19a4 same as 23
EntryCount         0
ContentionCount    c
*** Locked

CritSec +7cc67c at 007cc67c
WaiterWoken        No
LockCount          0
RecursionCount     1
OwningThread       19a4
EntryCount         0
ContentionCount    0
*** Locked

CritSec +882a058 at 0882a058
WaiterWoken        No
LockCount          0
RecursionCount     1
OwningThread       19a4
EntryCount         0
ContentionCount    0
*** Locked

Scanned 2602 critical sections

0:000> !analyze -hang
Probably caused by : sqlncli10.dll ( sqlncli10!Tcp::ReadSync+1c6 )

Followup: MachineOwner