IIS and SMTP - SMTP service high cpu utilization

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Author SMTP service high cpu utilization
HOLLOWAY

2004-03-22, 5:04 am

Inetinfo.exe is using 90%+ cpu, I have isolated the smtp service as the culprit, when this service is stopped cpu usage returns to normal.
I have run iisstate against inetinfo.exe but I have little idea of how to interpret the threads.
Can anyone please advise as to whats going on in the thread below, and does it look normal?
Thanks

Thread ID: 87
System Thread ID: 10a0
Kernel Time: 0:8:40.171
User Time: 0:6:31.859
Thread Status: Thread is in a WAIT state.
Thread Type: SMTP Service Worker Thread
# ChildEBP RetAddr
00 0c13fe48 77f8bff4 ntdll!NtWaitForSingleObject+0xb
01 0c13fe70 77f8735c ntdll!RtlpWaitForEvent+0x22
02 0c13fe98 77f87229 ntdll!RtlDeregisterWaitEx+0x121
03 0c13fea4 7c59c537 ntdll!RtlDeregisterWait+0xb
04 0c13feac 6b584289 KERNEL32!UnregisterWait+0x11
05 0c13feb8 6b57ceb7 SMTPSVC!CAsyncConnection::~CAsyncConnect
ion+0x17
06 0c13fec4 6b57cda4 SMTPSVC!CAsyncMx::~CAsyncMx+0xb6
07 0c13fecc 6b58433e SMTPSVC!CAsyncMx::`scalar deleting destructor'+0x8
08 0c13fed8 77f8b480 SMTPSVC!CAsyncConnection::AsyncConnectCa
llback+0x40
09 0c13fef0 77f88788 ntdll!RtlpAsyncCallbackCompletion+0x77
0a 0c13ff28 77f8c310 ntdll!RtlpExecuteWorkerRequest+0x54
0b 0c13ffb4 7c57b382 ntdll!RtlpWorkerThread+0x93
0c 0c13ffec 00000000 KERNEL32!BaseThreadStart+0x52
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