Q: BSoD Locale ID 3081 BC Code c8

Hi guys,

I'm not overly savvy when it comes to PCs and have been scouring the net for help on how to solve a BSoD issue.


Intel Core 2 Quad CPU Q6600 @ 2.40GHz  2.40GHz


Vista 32 bit Service pack 2


ASUS GeForce GTX560Ti

BSoD occurred on load up after logging into Windows and waiting for general starup of applications to occur; so approx 2 mins after my desktop had opened. Since this time, i ahve restarted PC numerous times and more often than not, it will get to same point before BSoD displays. I have unplugged my seagate external, my headphones and restarted after both. Sometimes I can enter safe mode and sometimes not. i.e. my keyboard works at that point intermittently. The details of BSoD are as follows:

Locale ID: 3081

BCCode: C8

BCP1: 00000000

BCP2: 00000002

BCP3: 00000000

BCP4: 00000000

O.S Version: 6_0_6002

Service Pack: 2_0

Product: 768_1

OS version: 6.0.6002.

The only software i can think that has been updated recently is as follows:



Windows updates

Plain English would really be appreicated here as I truly am a layman when it comes to computer stuff. Thanks in advance.



Thanks for the dumps!

All of the attached DMP files are of the IRQL_UNEXPECTED_VALUE (C8) bug check.

This indicates that the processor's IRQL is not what it should be at this time.

This error is usually caused by a device driver or another lower-level program that changed the IRQL for some period and did not restore the original IRQL at the end of that period. For example, the routine may have acquired a spin lock and failed to release it.

If we take a look at the call stack:

3: kd> kv
ChildEBP RetAddr  Args to Child              
b9f0b740 83cb2cb0 000000c8 00000000 00000002 nt!KeBugCheckEx+0x1e
b9f0b790 8d460b89 8d460ba4 b9f0b7b4 00000000 nt!KeExpandKernelStackAndCalloutEx+0x2a
b9f0b7c0 931d4d86 87094228 b9f0b7dc 870f5810 tcpip!UdpTlProviderSendMessages+0x5e (FPO: [Non-Fpo])
b9f0b808 931dca52 86e34de0 870f5800 899f6c10 tdx!TdxSendDatagramTransportAddress+0x206 (FPO: [Non-Fpo])
b9f0b824 83c4497a 88eae030 870f5810 870f58c0 tdx!TdxTdiDispatchInternalDeviceControl+0x5c (FPO: [Non-Fpo])
b9f0b83c 8d385a5c 886cc000 00000000 86fa74c0 nt!IofCallDriver+0x63
b9f0b850 8d38cac0 88eae030 870f5810 00000000 aswNdis2+0x6a5c
b9f0b9e0 8d37f61b 88ea4e50 870f5810 88eb3cb4 aswNdis2+0xdac0
b9f0b9f4 8d387496 88ea4e50 870f5810 b9f0ba1c aswNdis2+0x61b
b9f0ba04 83c4497a 88ea4e50 870f5810 88eb3cb0 aswNdis2+0x8496
b9f0ba1c 931e76fc 2aee4ffb 86e35ee0 88eb3bc8 nt!IofCallDriver+0x63
b9f0ba58 83c4497a 88ea4e50 870f5810 870f5980 aswTdi+0x6fc
b9f0ba70 93a2c914 2a514c86 00000001 056ef610 nt!IofCallDriver+0x63
b9f0bad8 93a213d0 056ef666 00000003 93a213d0 afd!AfdFastDatagramSend+0x5ba (FPO: [Non-Fpo])
b9f0bc58 83e471ce 8990ec01 00000001 056ef5d8 afd!AfdFastIoDeviceControl+0x3c1 (FPO: [Non-Fpo])
b9f0bd00 83e48694 88eb1ca8 0000104c 00000000 nt!IopXxxControlFile+0x2cf
b9f0bd34 83c4ac96 00001024 0000104c 00000000 nt!NtDeviceIoControlFile+0x2a
b9f0bd34 77255d14 00001024 0000104c 00000000 nt!KiSystemServicePostCall (FPO: [0,3] TrapFrame @ b9f0bd64)
056ef690 00000000 00000000 00000000 00000000 0x77255d14

^^ aswNdis2/aswTdi are avast! drivers, and seem to be the driver causing the improper IRQL.

IRQL << 16 <--- IRQL at the time of the crash.

IRQL << 8 <--- This was the expected IRQL (what it should have lowered to).


Remove and replace avast! with Microsoft Security Essentials for temporary troubleshooting purposes as it appears to be causing conflicts:

avast! removal -




Debugger/Reverse Engineer.

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Views: 385 Last updated: March 26, 2018 Applies to: