[Vpn-help] Bluescreen with 2.1.0-rc2

Matthew Grooms mgrooms at shrew.net
Tue Jun 17 15:59:39 CDT 2008


Joerg de la Haye wrote:
> Hi list,
> 
> with 2.1.0-rc2 I get a bluescreen under certain reproduceable 
> circumstances. The error message is "IRQL_not_less_or_Equal" in 
> conjuction with ndis.sys, and I guess it has to do with the ndis-changes 
> from rc2, as it didn't occur with earlier versions.
> 
> You can get the bluescreen if you access a CIFS/SMB share at some server 
> by typing \\<servername or -IP>\<share> and start to browse some files. 
> The bluescreen doesn't appear immediately, it appears 2-3 seconds after 
> accessing the share and browsing files. Disabling the Shrew Soft 
> Lightweight Filter let the bug disappear and you don't get the 
> bluescreen, so the Lightweight Filter is very likely the cause of the 
> bluescreen. At least it has to deal with it ;-). This happens without 
> starting the VPN client itself at all, I haven't tested yet if it 
> appears when you access the share via an client-established 
> IPsec-connection. If you use other protocols like ssh, imap or smtp e.g. 
> with enabled Lightweight Filter for that connection everything is fine.
> 
> My OS is Vista Business x64 SP1, and my network card is an onboard Intel 
>   82566MM. The driver version of the NIC is 9.7.255.0, but I tested 
> older and newer versions with the bluescreen appearing also. May I help 
> with certain logs, dumps and tests? I haven't followed the usually 
> desired bug reporting procedure as it happens without starting the VPN 
> client itself at all.
> 

Joerg,

Thanks for the detailed bug report. This sounds serious. I will do what 
I can to reproduce this in my lab and report back. Can you test another 
build if I find the problem and implement a possible fix?

Does anyone else on the list see this issue on Vista x64 hosts?

Thanks,

-Matthew



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