[vpn-help] vfilter.sys bugcheck IRQL_NOT_LESS_OR_EQUAL bug report.

[Matthew Grooms]

On 6/26/2010 5:27 PM, Prahlad Purohit wrote:
> Problem:
>
> The system hit kernel panic Bugcheck with IRQL_NOT_LESS_OR_EQUAL panic
> code. It tried to reference a NULL memory location. This problem was
> caused by vfilter.sys driver which is part of Shrew soft VPN.
>
> To Reproduce:
>
> The VPN was not connected when the problem hit. In fact I didn't use
> Shrew soft VPN on that day since the PC was rebooted. I don't think
> there is a known way to reproduce this problem.
>
> VPN Client Version = 2.1.5-release
> Windows OS Version = Windows 7 Home Premium
> Gateway Make/Model = NA
> Gateway OS Version = NA
>
> Zipped dump file is 80MB in size and I can't send it with this email
> account. I can upload it if it will help you root cause and fix the
> problem. Bug check analysis below.
>
> Thanks,
> Prahlad Purohit
>

Thanks for the bug report. Please try the latest 2.1.6 beta. The focus 
of development over the last 6 months has been improving these drivers. 
If you are able to reproduce the problem using 2.1.6, please send me a 
minidump and I'll have a look at it.

-Matthew