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.
>