Driver Verifier Log File not populated.

Hi,

I am doing debugging of a driver using kernel mode debugging
environment where my host machine and target machine are connected
through a com port.

I am facing a problem whereby my driver on the target machine is going
for a bug check.

I have enabled the verifier for the driver on the target machine.

Also created a log file using the verifier /log `filename` command
option.

But when i load the driver on the target system , the system is going
for a bugcheck.

Now the problem is that when i reboot the system, there is nothing
present in the log file except a statement that says something like
"no drivers were verified" ..But that statement appears immediately
when i created the log file from the verifier command line.

Can someone please help me bring data in the log file after the driver
is going for a bugcheck?

is the verifier not working for the driver?

I have tried using command line commands like "verifier /
querysettings" and they are showing that the driver is under verifier
observation.

Also have enabled only IOVerification option for the driver.

Thanks for any help.

Regards,
Aman.