Re: wmiprvse.exe causing CPU to run at 100%
- From: "Larry Struckmeyer [SBS-MVP]" <lstruckmeyer@xxxxxxxxxxxxxxx>
- Date: Tue, 21 Oct 2008 08:12:07 -0400
A google on this "hardware com port test" turns up many hits. Also, download.com will turn up several programs you can try.
I kept my old copies of several commercial programs that booted on a dos floppy and would test the hardware.
I pretty much quit using them when the memory tests began to take 24 hours for a single pass and the first tier systems, Intel and the like reduce their prices so as to make it unnecessary to buy non branded stuff fresh off the boat. (Pssst....Hey buddy, want to buy a motherboard?) <g>
First tier stuff was so reliable that testing proved to be a waste of time. But I still keep all that stuff, and occasionally turn up a bit of failed hardware. Like you I have the parallel and serial loopback testers still.
BTW, there are now memory tests that will do 100 passes overnight on a GB of RAM, so they must do something differently than the older ones.
-Larry
"JPL" <JPL@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message news:165165F7-17FC-4AE5-AB20-291F66B82455@xxxxxxxxxxxxxxxx
Larry,
Again because lost in the expansion ... !
What hardware i/o diagnostic tests do you suggest? I have an RS-232
loopback connector somewhere but have not used it since Win 3.11 days and
cannot remember the testing procedures I used then.
JPL
"Larry Struckmeyer [SBS-MVP]" wrote:
Hi JPL:
It would appear that the system is attempting to detect that UPS and running
though the .ini files to find a match and is caught in a loop.
I think I would first try a different cable, then a different ups if you
have any that have serial data ports.
Any chance that the UPS also has USB?
Are the parameters for the COM port set to the specs that the UPS requires?
Does the COM port pass basic i/o tests.? Hardware level tests may find that
the port or the cable is defective.
Is the UPS mfg software installed? Does it detect the UPS?
And is the UPS service in Control Panel active or disabled. As I remember
this it should be disabled if you use the mfg. software, but you could try
it both ways, or at least to the mfg recommendations.
-Larry
"JPL" <JPL@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:EF8805F6-B091-432B-9DB8-7E16D3FE0466@xxxxxxxxxxxxxxxx
> SBS 2003 R2 Premium SP2 running on a single-processor Dell server.
>
> Whenever the serial data cable for the UPS is connected to port COM1, > one
> of
> the wmiprvse.exe processes (running under user Network Service) > eventually
> starts to consume all available CPU resources, leaving the CPU running > at
> 100% indefinitely and the server more or less unusable. This does not
> occur
> immediately - it usually starts after ca. 2 days, although it has been > as
> soon as 4 hours from system startup.
>
> The rogue process returns to normal if the data cable is unplugged, but > of
> course this would prevent the UPS from cleanly shutting down the server > in
> the event of mains power failure.
>
> If the rogue wmiprvse.exe process is ended, the server returns to > normal
> operation as far as the users are concerned.
>
> http://support.microsoft.com/kb/937882 describes apparently identical
> symptoms, but the fix is said to be applicable to Systems Management
> Server
> 2003 only, not to SBS.
>
> Is there an equivalent fix for SBS 2003?
>
> Any other ideas what we could try to fix this problem?
>
> JPL
>
.
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