Question

Q: BSOD tap0901.sys



Hi,

The attached DMP files are of the DRIVER_IRQL_NOT_LESS_OR_EQUAL (d1) bug check.

This indicates that a kernel-mode driver attempted to access pageable memory at a process IRQL that was too high.

A driver tried to access an address that is pageable (or that is completely invalid) while the IRQL was too high. This bug check is usually caused by drivers that have used improper addresses.

kd> k
ChildEBP RetAddr  
WARNING: Stack unwind information not available. Following frames may be wrong.
a5c25120 8965e4ef tap0901+0x2a30
a5c2514c 8965dc68 ndis!ndisMSendPacketsXToMiniport+0x129
a5c251b8 89628c11 ndis!ndisMSendNetBufferListsToPackets+0x76
a5c25298 8264dc36 ndis!NdisSendNetBufferLists+0x431
a5c25318 826505f2 tcpip!IppFragmentPackets+0x4ca
a5c25378 826502a0 tcpip!IppDispatchSendPacketHelper+0x80
a5c25420 8264f612 tcpip!IppPacketizeDatagrams+0x289
a5c254b8 8264e227 tcpip!IppSendDatagramsCommon+0x65a
a5c254d0 8263ffc5 tcpip!IpNlpSendDatagrams+0x57
a5c25744 82641810 tcpip!UdpSendMessagesOnPathCreation+0x4d4
a5c258c4 82641b01 tcpip!UdpSendMessages+0x1c2
a5c258d0 81eacea5 tcpip!UdpTlProviderSendMessagesCalloutRoutine+0x13
a5c25960 81eacb09 nt!KeExpandKernelStackAndCalloutInternal+0x385
a5c25978 826469d9 nt!KeExpandKernelStackAndCalloutEx+0x1f
a5c259b8 8d44254c tcpip!UdpTlProviderSendMessages+0x53
a5c25a10 8d44227b afd!AfdTLFastDgramSend+0x88
a5c25ad0 8d430558 afd!AfdFastDatagramSend+0x1fe
a5c25c40 8209b9a3 afd!AfdFastIoDeviceControl+0x553
a5c25cf8 8209ab96 nt!IopXxxControlFile+0x1f3
a5c25d24 81f306c7 nt!NtDeviceIoControlFile+0x2a
a5c25d24 772ef804 nt!KiSystemServicePostCall
050ef504 00000000 0x772ef804

tap0901.sys is the problematic driver which is TAP-Win32 Adapter V9 or OpenVPN driver or COMODO. If you have COMODO installed, uninstall it ASAP! For the VPN, I'd recommend removal as well.

Regards,

Patrick

Debugger/Reverse Engineer.

Did this solve your problem?

Sorry this didn't help.


Which one of TAP-Win32 Adapter V9 should I uninstall?

https://onedrive.live.com/redir?resid=34148F7E79725CFF%21921

Did this solve your problem?

Sorry this didn't help.


Hm, do you have any software regarding the TAP adapter, or is it only listed in Device Manager?

Regards,

Patrick

Debugger/Reverse Engineer.

Did this solve your problem?

Sorry this didn't help.


No, I don't have any software regarding the TAP adapter.

Did this solve your problem?

Sorry this didn't help.


Actually, you should.

The TAP adapters are virtual network connections for Open VPN. Did you uninstall this software? If so, and if the adapters are still there, just uninstall all of them.

Regards,

Patrick

Debugger/Reverse Engineer.

Did this solve your problem?

Sorry this didn't help.


I have uninstalled all of them, except Realtek PCIe GBE Family Controller. Will this solve the problem?

https://onedrive.live.com/redir?resid=34148F7E79725CFF%21922

Did this solve your problem?

Sorry this didn't help.


Good work! Please keep me updated now as to whether or not the crashes continue or have stopped.

Regards,

Patrick

Debugger/Reverse Engineer.

Did this solve your problem?

Sorry this didn't help.


Even if I delete tap network adapters in Device manager it shows up again in Device Manager

I don't have OpenVPN listed as installed in Installed programs list

I even don't know that I had installed OpenVPN in the past.

To prevent BSOD, I need to delete  tap network adapters frequently

So what should I do to stop tap adapters automatic installation.

Did this solve your problem?

Sorry this didn't help.


 
Question Info

Views: 4,632 Last updated: May 13, 2018 Applies to: