Filter driver crashes under stress testing when norton is installed

NTFSD
1

Hi,

I want to write a filter driver for monitoring files/folders. Eg. If
C:\testfolder is to be monitored then the driver tracks all the operations
such as copy, delete etc done on this folder. The driver runs well under
normal circumstances even when norton antivirus is loaded. If we manually
copy, move files to this folder, there is no problem. But when a lot of
files are created, deleted etc. thro’ a Jscript very fast, the Windows
2000 m/c restarts or hangs. Can you please help me in this problem ? Is
it because the antivirus s/w tries to scan these big files which are
copied, moved very fast but can’t keep up and therefore the m/c restarts
or hangs ?

Regards,

Subodh

2

What is the m/c?

-----Original Message-----
From: Subodh G. Karode [mailto:xxxxx@bsil.com]
Sent: Monday, December 02, 2002 4:29 AM
To: File Systems Developers
Subject: [ntfsd] Filter driver crashes under stress testing when norton
is installed

Hi,

I want to write a filter driver for monitoring files/folders. Eg. If
C:\testfolder is to be monitored then the driver tracks all the operations
such as copy, delete etc done on this folder. The driver runs well under
normal circumstances even when norton antivirus is loaded. If we manually
copy, move files to this folder, there is no problem. But when a lot of
files are created, deleted etc. thro’ a Jscript very fast, the Windows
2000 m/c restarts or hangs. Can you please help me in this problem ? Is
it because the antivirus s/w tries to scan these big files which are
copied, moved very fast but can’t keep up and therefore the m/c restarts
or hangs ?

Regards,

Subodh

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3

Hi Subodh

Have you tried the stress testing when norton (antivirus) is not
installed?
Can you provide information about what order the filter drivers are
layered above the fsd?

Cheers
Lyndon

4

You mean the configuration ? It is 256 MB ram, hard disk is 4 GB.
The system hangs in both NT and windows 2000.

5

Here are complete details. 256 MB RAM, P II, 400 MHz.
O/s is NT 4.0 and 2000. I suppose this is what you want.
Do you think that this problem may be caused by lack of memory
or the speed of m/c is not fast enough ?

Subodh

6

The filter driver is just above the FSD and below IO manager.

The system doesn’t hang when norton is not installed. I ran that
particular JScript 3 times but no problems. But after installing
norton or even Mcafee, the m/c (NT or 2000) either hangs or restarts after
once running the script. This problem occured in 98 too but we came to the
conclusion that 98 is not good enough to handle this sort of testing and
left it at that.

Is it because the system runs out of memory or is not fast enough ?
The m/c is pentium II, 400 MHz, 256 MB ram, o/s is NT 4.0 and 2000.

Please let me know your suggestions.

Regards,

Subodh

7

> The filter driver is just above the FSD and below IO manager.

What about the relationship to the filter driver in nav?