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Windows 7: Bsod bcc 20

21 Dec 2010   #1

Windows 7 Enterprise 32bit
Bsod bcc 20

Hi everyone,

I was hoping you could help. I installed Windows 7 on a 3 yr old laptop that previously had Vista on it. I installed win 7 enterprise x32 from scratch. I got a BSOD on the synaptics driver, so I updated that and it seems to have fixed that problem. Now I am getting BSOD on something else. I suspect the video drivers but I am not sure. Can you please take a look at the attached files and let me know what the debugger says.

The zip file contains several dumps. I think I only need to know what happened on the most recent dump.

Thanks in advance.

My System SpecsSystem Spec
21 Dec 2010   #2
Capt.Jack Sparrow

Windows 7 Ultimate - 64-bit | Windows 8 Pro - 64-bit

Hello and Welcome !

Seems like Rt86win7.sys i.e. Realtek driver is causing the System to crash. Uninstall the drivers and use this Realtek to install it.

Update the Following Drivers:

TVALZ_O.SYS  Fri Nov 09 08:37:46 2007 - Toshiba for the Value Added Package
FwLnk.sys    Sun Nov 19 19:41:12 2006 - Toshiba Firmware Linkage system driver file
AGRSM.sys    Mon Nov 10 20:26:37 2008 - SoftModem Device Driver
Use this article for help in updating drivers:

Driver Troubleshooting !! « Captain Debugger


The IO manager has caught a misbehaving driver.
Arg1: 0000000c, Invalid IOSB in IRP at APC IopCompleteRequest (appears to be on
    stack that was unwound)
Arg2: 8791b464, IOSB address
Arg3: 8f40cf68, IRP address
Arg4: 00000000

Debugging Details:



IOSB_ADDRESS: ffffffff8791b464

IRP_ADDRESS:  0040cf68






LOCK_ADDRESS:  82984f60 -- (!locks 82984f60)

Resource @ nt!PiEngineLock (0x82984f60)    Available

WARNING: SystemResourcesList->Flink chain invalid. Resource may be corrupted, or already deleted.

WARNING: SystemResourcesList->Blink chain invalid. Resource may be corrupted, or already deleted.

1 total locks

    Lock address  : 0x82984f60
    Thread Count  : 0
    Thread address: 0x00000000
    Thread wait   : 0x0

LAST_CONTROL_TRANSFER:  from 82b4e9f1 to 828fbd10

8791b4c0 82b4e9f1 000000c9 0000000c 8791b464 nt!KeBugCheckEx+0x1e
8791b4e0 828c116d a11ff2ed 84fded48 8f40cfa8 nt!IovpCompleteRequest+0x3c
8791b524 828c6fb9 0040cfa8 8791b550 8791b55c nt!IopCompleteRequest+0x4a
8791b574 8284892e 00000000 00000000 00000000 nt!KiDeliverApc+0x111
8791b58c 8290497e 8544c8b8 84e5a260 8544e4b8 nt!KiCheckForKernelApcDelivery+0x24
8791b5ac 82b4f1f4 00000000 00000000 8544c8b8 nt!MiTrimAllSystemPagableMemory+0x354
8791b5cc 82b58e32 8791b638 00000500 00000000 nt!MmVerifierTrimMemory+0xdd
8791b5e4 82b59387 00000002 8544c8b8 8791b638 nt!ViKeRaiseIrqlSanityChecks+0xb8
8791b600 85424ddd 8b361218 8b35a000 00000000 nt!VerifierKfAcquireSpinLock+0x50
8791b61c 8cb7b0cf 00000050 00000000 00000000 ndis!NdisMRegisterMiniportDriver+0x511
WARNING: Stack unwind information not available. Following frames may be wrong.
8791b688 829c2740 8b361218 8b35a000 c000035f Rt86win7+0x410cf
8791b86c 829c9fff 00000000 00000000 8791b894 nt!IopLoadDriver+0x7ed
8791b918 82a0eea4 8c45f848 00000001 8c45f834 nt!PipCallDriverAddDeviceQueryRoutine+0x34b
8791b950 82a170f8 00000001 8791ba1c c0000034 nt!RtlpCallQueryRegistryRoutine+0x2cd
8791b9bc 829c7120 40000000 80000118 8791ba38 nt!RtlQueryRegistryValues+0x31d
8791ba98 829c688e 87be4880 8791bcc8 00000000 nt!PipCallDriverAddDevice+0x383
8791bc94 829aaa42 84fe8628 84f6e8a0 8791bcc8 nt!PipProcessDevNodeTree+0x15d
8791bcd4 82832f9c 84f6e8a0 82982e80 84fded48 nt!PiProcessStartSystemDevices+0x6d
8791bd00 8288cf3b 00000000 00000000 84fded48 nt!PnpDeviceActionWorker+0x241
8791bd50 82a2d6d3 00000001 a11ffa59 00000000 nt!ExpWorkerThread+0x10d
8791bd90 828df0f9 8288ce2e 00000001 00000000 nt!PspSystemThreadStartup+0x9e
00000000 00000000 00000000 00000000 00000000 nt!KiThreadStartup+0x19


8cb7b0cf ??              ???


SYMBOL_NAME:  Rt86win7+410cf

FOLLOWUP_NAME:  MachineOwner


IMAGE_NAME:  Rt86win7.sys


FAILURE_BUCKET_ID:  0xc9_c_VRF_Rt86win7+410cf

BUCKET_ID:  0xc9_c_VRF_Rt86win7+410cf

Followup: MachineOwner
Hope this helps,
My System SpecsSystem Spec
22 Dec 2010   #3

Windows 7 Enterprise 32bit

Thanks Capt'n! I upgraded the Realtek driver but I'm still getting a BSOD. I think there is another bad driver in addition to Realtek. I'll grab another dump and post it later.
My System SpecsSystem Spec

22 Dec 2010   #4

Windows 7 Enterprise 32bit

OK, here is the dump file. Please run it though the debugger and tell me what it says. Thank you and merry Christmas ( or happy hanukkah, or kwanza, or whatever your preference:) )
My System SpecsSystem Spec
24 Dec 2010   #5

Windows 7 Enterprise 32bit

OK, nevermind that minidump. I upgraded the video driver and the bsods have stopped. For now. Thanks for your help to date Sevenforums team.
My System SpecsSystem Spec

 Bsod bcc 20

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