[Vpn-help] Bluescreen with 2.1.0-rc2

[Matthew Grooms]

Matthew Grooms wrote:
> 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.
>>

It didn't occur in RC1? Can you verify this please? The primary change 
between RC1 and RC2 was the introduction of an NDIS 6 Miniport driver. 
Do you happen to have any other software installed on the machine that 
may have installed a LWF driver ( VPN Client etc )? You would likely see 
them listed as services along side the Shrew Soft LWF driver.

>> 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.
>>

I ran some tests in my vmware session but couldn't reproduce the issue. 
Browsing network shares worked fine even while connected ( see attached 
image ).

>> 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.
>>
> 

Well, its either a bug in the Shrew Soft LWF driver or a bug in the 
Intel driver. Hearing back from others on the list that use the client 
with other network cards would be helpful. I will run some more tests 
and see what I can come up with.

-Matthew
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