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win 7 high cpu usage on 2 services help
Hello.
I need help with win 7 x64.
I've isolated services and find that plugplay service and audioendpointbuilder started taking cpu always at the same time.
When services weren't isolated with sc cmd i could only restart my pc bu some times problem showed again upon new start.
After i've isolated 2 services my problem starts randomly and sometimes exits randomly but after some time starts again. Drivers are all up to date and some are selectively disabled like ati high definition audio.
I've run sfc /scannow with no problems.
Here are the procces explorer threads and their stacks if someone could help out.(also have set up symbols in proc ex)
plugplay service
TID ntdll.dll!EtwTraceMessageVa+0x130
stack for TID
ntoskrnl.exe!SeAccessCheckWithHint+0xb4a
ntoskrnl.exe!IoGetRequestorProcess+0x250
ntoskrnl.exe!ExfTryToWakePushLock+0x899
ntoskrnl.exe!KeStackAttachProcess+0x117f
ntoskrnl.exe!KeAcquireSpinLockAtDpcLevel+0x88d
ntoskrnl.exe!KeRemoveQueueEx+0x301
ntoskrnl.exe!MmCreateSection+0x92b
ntoskrnl.exe!IoAllocateMdl+0x726
ntoskrnl.exe!KeSynchronizeExecution+0x3a43
ntdll.dll!ZwWaitForWorkViaWorkerFactory+0xa
ntdll.dll!EtwTraceMessageVa+0x37b
kernel32.dll!BaseThreadInitThunk+0xd
ntdll.dll!RtlUserThreadStart+0x21
audioendpointbuilder
TID audiosrv.dll+0xf440
stack for above TID
ntoskrnl.exe!SeAccessCheckWithHint+0xb4a
ntoskrnl.exe!KeAcquireSpinLockAtDpcLevel+0x682
ntoskrnl.exe!KeWaitForMutexObject+0x19f
ntoskrnl.exe!PsIsSystemProcess+0x68
ntoskrnl.exe!KeStackAttachProcess+0x11b9
ntoskrnl.exe!ObReferenceObjectByPointerWithTag+0x22b
ntoskrnl.exe!KeSynchronizeExecution+0x38c8
ntdll.dll!ZwOpenKeyEx+0xa
kernel32.dll!BaseThreadInitThunk+0x8be
kernel32.dll!NlsGetCacheUpdateCount+0x120
kernel32.dll!BaseThreadInitThunk+0x51a
kernel32.dll!RegOpenKeyExW+0x1d
MMDevAPI.DLL!Ordinal5+0xc10
MMDevAPI.DLL!Ordinal5+0x7d8
MMDevAPI.DLL!Ordinal5+0x220f
MMDevAPI.DLL!Ordinal5+0x1fcb
MMDevAPI.DLL!Ordinal5+0x33c1
MMDevAPI.DLL!Ordinal5+0x38ef
MMDevAPI.DLL!Ordinal5+0x28bd
MMDevAPI.DLL!DllGetClassObject+0x96f
MMDevAPI.DLL!Ordinal5+0x4420
audiosrv.dll!ServiceMain+0x5206
audiosrv.dll!ServiceMain+0x3d28
audiosrv.dll!ServiceMain+0x173c
audiosrv.dll!ServiceMain+0x12b6
audiosrv.dll!ServiceMain+0x29a3c
audiosrv.dll!ServiceMain+0x234ca
audiosrv.dll+0xf4a9
kernel32.dll!BaseThreadInitThunk+0xd
ntdll.dll!RtlUserThreadStart+0x21
Thinking of doing complete reinstall?
And here are screenshots before isolation :
Last edited by frglja; 29 Jan 2010 at 16:26. Reason: adding screenshots