why my explorer take 99% usage of CPU after install my filter driver?

I wrote and install a file filter driver based on sfilter,
but I found my explorer always take 99% usage of my CPU,
I can’t bear that, so please help me!

What could cause such condition!

thanks!

Explorer is not happy with how you are responding to something and it is
performing the action again. This might be due to your handling of
directory change notifications, for example, but without some added
information it is tough for us to guess as to what you are doing wrong.

Regards,

Tony

Tony Mason
Consulting Partner
OSR Open Systems Resources, Inc.
http://www.osr.com

-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Holk
Sent: Thursday, April 29, 2004 3:26 AM
To: ntfsd redirect
Subject: [ntfsd] why my explorer take 99% usage of CPU after install my
filter driver?

I wrote and install a file filter driver based on sfilter, but I found
my explorer always take 99% usage of my CPU, I can’t bear that, so
please help me!

What could cause such condition!

thanks!


Questions? First check the IFS FAQ at
https://www.osronline.com/article.cfm?id=17

You are currently subscribed to ntfsd as: xxxxx@osr.com To unsubscribe
send a blank email to xxxxx@lists.osr.com

I just added an IRP_MJ_DEVICE_CONTROL dispatch function to handle my private
communication between my driver and app.

If I delete this dispatch function, everything is normal.
I only do the work if the target device is my driver control object, or else
I just pass the irp down, anything wrong?

Thanks for your response!

“Tony Mason” ??? news:xxxxx@ntfsd…
Explorer is not happy with how you are responding to something and it is
performing the action again. This might be due to your handling of
directory change notifications, for example, but without some added
information it is tough for us to guess as to what you are doing wrong.

Regards,

Tony

Tony Mason
Consulting Partner
OSR Open Systems Resources, Inc.
http://www.osr.com

-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Holk
Sent: Thursday, April 29, 2004 3:26 AM
To: ntfsd redirect
Subject: [ntfsd] why my explorer take 99% usage of CPU after install my
filter driver?

I wrote and install a file filter driver based on sfilter, but I found
my explorer always take 99% usage of my CPU, I can’t bear that, so
please help me!

What could cause such condition!

thanks!


Questions? First check the IFS FAQ at
https://www.osronline.com/article.cfm?id=17

You are currently subscribed to ntfsd as: xxxxx@osr.com To unsubscribe
send a blank email to xxxxx@lists.osr.com