Hello,

I am trying to debug windows application termination without any crash dump. Application is simply in a WaitForMultipleObjects, and is calling CreateProcess when it gets the event.
windbg indicates no exception. Output of winDbg is below. Any pointers for further debugging is most appreciated.

0:019> g
ntdll!NtWaitForWorkViaWorkerFactory+0x14:
00007ffe`4c719454 c3 ret
0:018> g
^ No runnable debuggees error in 'g'
0:018> kp

Child-SP RetAddr Call Site

00 00000000043cfab8 00007ffe4c68eb5e ntdll!NtWaitForWorkViaWorkerFactory+0x14
01 00000000043cfac0 00007ffe4c4784d4 ntdll!TppWorkerThread+0x76e
02 00000000043cfec0 00007ffe4c6c1791 KERNEL32!BaseThreadInitThunk+0x14
03 00000000043cfef0 0000000000000000 ntdll!RtlUserThreadStart+0x21
0:018> .frame
00 00000000043cfab8 00007ffe4c68eb5e ntdll!NtWaitForWorkViaWorkerFactory+0x14
0:018> dx Debugger.Sessions[0].Processes[12112].Threads[10500].Stack.Frames[0].SwitchTo();dv /t /v
Debugger.Sessions[0].Processes[12112].Threads[10500].Stack.Frames[0].SwitchTo()
Unable to enumerate locals, Win32 error 0n87
Private symbols (symbols.pri) are required for locals.
0:018> kb

RetAddr : Args to Child : Call Site

00 00007ffe4c68eb5e : 000000000042fed8 000000000042fed8 000000000041ac48 0000000000000001 : ntdll!NtWaitForWorkViaWorkerFactory+0x14 01 00007ffe4c4784d4 : 0000000000000000 0000000000000000 0000000000000000 0000000000000000 : ntdll!TppWorkerThread+0x76e
02 00007ffe4c6c1791 : 0000000000000000 0000000000000000 0000000000000000 0000000000000000 : KERNEL32!BaseThreadInitThunk+0x14 03 0000000000000000 : 0000000000000000 0000000000000000 0000000000000000 0000000000000000 : ntdll!RtlUserThreadStart+0x21
0:018> .exr -1
Last event was not an exception
0:018> .lastevent
Last event: 2f50.2904: Exit process 0:2f50, code 1
debugger time: Wed Jan 5 20:52:58.367 2022 (UTC - 8:00)
0:018> dx Debugger.Sessions[0].Processes[12112].Threads[10500].Stack.Frames[1].SwitchTo();dv /t /v
Debugger.Sessions[0].Processes[12112].Threads[10500].Stack.Frames[1].SwitchTo()
0:018> .frame
01 00000000043cfac0 00007ffe4c4784d4 ntdll!TppWorkerThread+0x76e
0:018> dx Debugger.Sessions[0].Processes[12112].Threads[10500].Stack.Frames[0].SwitchTo();dv /t /v
Debugger.Sessions[0].Processes[12112].Threads[10500].Stack.Frames[0].SwitchTo()
Unable to enumerate locals, Win32 error 0n87
Private symbols (symbols.pri) are required for locals.
0:018> !analyze -v
Last event: 2f50.2904: Exit process 0:2f50, code 1
debugger time: Wed Jan 5 20:52:58.367 2022 (UTC - 8:00)
0:018> !analyze -hang
Last event: 2f50.2904: Exit process 0:2f50, code 1
debugger time: Wed Jan 5 20:52:58.367 2022 (UTC - 8:00)
0:018> !analyze -f

• *
• Exception Analysis *
• *

  ---

Event is not an exception - analysis may be incorrect

PROCESS_NAME: IASrvr.exe

ERROR_CODE: (NTSTATUS) 0x1 - STATUS_WAIT_1

SYMBOL_NAME: ntdll!NtWaitForWorkViaWorkerFactory+14

MODULE_NAME: ntdll

IMAGE_NAME: ntdll.dll

FAILURE_BUCKET_ID: APPLICATION_FAULT_1_ntdll.dll!NtWaitForWorkViaWorkerFactory

FAILURE_ID_HASH: {6ff6fe82-f6c0-ece5-1d0d-6bb2a0a2b37e}

Followup: MachineOwner

0:018> .kframes
Default stack trace depth is 0n256 frames
0:018> kb 5

RetAddr : Args to Child : Call Site

00 00007ffe4c68eb5e : 000000000042fed8 000000000042fed8 000000000041ac48 0000000000000001 : ntdll!NtWaitForWorkViaWorkerFactory+0x14 01 00007ffe4c4784d4 : 0000000000000000 0000000000000000 0000000000000000 0000000000000000 : ntdll!TppWorkerThread+0x76e
02 00007ffe4c6c1791 : 0000000000000000 0000000000000000 0000000000000000 0000000000000000 : KERNEL32!BaseThreadInitThunk+0x14 03 0000000000000000 : 0000000000000000 0000000000000000 0000000000000000 0000000000000000 : ntdll!RtlUserThreadStart+0x21
0:018> .frame /r
00 00000000043cfab8 00007ffe4c68eb5e ntdll!NtWaitForWorkViaWorkerFactory+0x14
rax=00000000000000c0 rbx=000000000041b8e0 rcx=0000000000000000
rdx=0000000000000000 rsi=0000000000000010 rdi=000000000041bc60
rip=00007ffe4c719454 rsp=00000000043cfab8 rbp=0000000000000000
r8=0000000000000000 r9=0000000000000000 r10=0000000000000000
r11=0000000000000000 r12=0000000000000000 r13=00007ffe4c68d100
r14=00007ffe4c6aabc0 r15=0000000000424e40
iopl=0 nv up ei pl zr na po nc
cs=0033 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00000244
ntdll!NtWaitForWorkViaWorkerFactory+0x14:
00007ffe`4c719454 c3 ret
0:018> !gle
LastErrorValue: (Win32) 0 (0) - The operation completed successfully.
LastStatusValue: (NTSTATUS) 0xc000000d - An invalid parameter was passed to a service or function.