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Windows 7: BSOD error 0x0000007f

11 Nov 2011   #1

Windows 7 Professional x64
BSOD error 0x0000007f

Hi, I've been getting BSODs for the past couple of months. I'm running Windows 7 Professional x64 on a one-year-old Sony Vaio VPCS12C7E laptop. It's the original OS which came installed on the system, and I've never re-installed it.

The BSODs all share some basic features:

  • They're all 0x0000007f UNEXPECTED_KERNEL_MODE_TRAP errors (see attached dump files).
  • They all happen when watching content online (usually Adobe Flash based, such as YouTube) though occasionally offline when using VLC player.
  • They all happen seemingly sporadicly - either thirty seconds or two hours under the above conditions.
The BSODs also occur more instantaneously when streaming high-quality videos or multiple files at once.

They started happening directly after I inserted an empty USB memory stick from a friend into my laptop. I can't recall the make or model of the USB stick off the top of my head, but it might have been the cause or simply a coincidence - I've not been able to get my head around it.

Anyway, here are the dump files - thank you so much for your efforts.

My System SpecsSystem Spec
12 Nov 2011   #2

Microsoft Windows 7 Ultimate: x64 (SP1)

Hello woopington & Welcome to SevenForums!

Type "devmgmt.msc" (without quotes) in your Start Orb.

Post a snapshot of it, and post it (How to post pic on SF)






LAST_CONTROL_TRANSFER:  from fffff880068b99ec to fffff800030d55c0

fffff880`035b6c18 fffff880`068b99ec : 00000000`000000fe 00000000`00000008 00000000`00000006 00000000`00000005 : nt!KeBugCheckEx
fffff880`035b6c20 fffff800`033ce973 : fffffa80`09a4f050 fffff880`0b1d20f0 ffffffff`dc3a58a0 fffff800`0327a5f8 : usbhub!UsbhHubProcessChangeWorker+0xec
fffff880`035b6c80 fffff800`030e27e1 : fffff880`0b1cba00 fffff880`0b1cbaf0 fffffa80`0545eb60 00000000`00000000 : nt!IopProcessWorkItem+0x23
fffff880`035b6cb0 fffff800`033756fa : 2e777777`2e666163 fffffa80`0545eb60 00000000`00000080 fffffa80`053cb9e0 : nt!ExpWorkerThread+0x111
fffff880`035b6d40 fffff800`030b3b46 : fffff880`033d5180 fffffa80`0545eb60 fffff880`033dffc0 37373432`33323d64 : nt!PspSystemThreadStartup+0x5a
fffff880`035b6d80 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiStartSystemThread+0x16


fffff880`068b99ec cc              int     3


SYMBOL_NAME:  usbhub!UsbhHubProcessChangeWorker+ec

FOLLOWUP_NAME:  MachineOwner


IMAGE_NAME:  usbhub.sys


FAILURE_BUCKET_ID:  X64_0xFE_usbhub!UsbhHubProcessChangeWorker+ec

BUCKET_ID:  X64_0xFE_usbhub!UsbhHubProcessChangeWorker+ec

Followup: MachineOwner

2: kd> lmvm usbhub
start             end                 module name
fffff880`068a7000 fffff880`06901000   usbhub     (pdb symbols)          c:\symcache\usbhub.pdb\1FCFF7A09A714CF891ED050D616F93F71\usbhub.pdb
    Loaded symbol image file: usbhub.sys
    Mapped memory image file: c:\symcache\usbhub.sys\4D8C0AAA5a000\usbhub.sys
    Image path: \SystemRoot\system32\DRIVERS\usbhub.sys
    Image name: usbhub.sys
    Timestamp:        Fri Mar 25 04:23:22 2011 (4D8C0AAA)
    CheckSum:         0005C6FA
    ImageSize:        0005A000
    File version:     6.1.7600.16788
    Product version:  6.1.7600.16788
    File flags:       0 (Mask 3F)
    File OS:          40004 NT Win32
    File type:        2.0 Dll
    File date:        00000000.00000000
    Translations:     0409.04b0
    CompanyName:      Microsoft Corporation
    ProductName:      Microsoft® Windows® Operating System
    InternalName:     usbhub.sys
    OriginalFilename: usbhub.sys
    ProductVersion:   6.1.7600.16788
    FileVersion:      6.1.7600.16788 (win7_gdr.110324-1506)
    FileDescription:  Default Hub Driver for USB
    LegalCopyright:   © Microsoft Corporation. All rights reserved.
Pull out useless USB-devices from your machine also.

Also upload any incoming new .dmp.

Carry on.
My System SpecsSystem Spec
12 Nov 2011   #3

Windows 7 Professional x64

Hi Frederik, thanks so much. I've taken a screenshot - though there's nothing useless plugged in at the moment and no crashes today thankfully.
My System SpecsSystem Spec

12 Nov 2011   #4

Windows 7 - Vista

Remove 2010 version Zone Alarm.

Use the Removal Tool -

Regards. . .

My System SpecsSystem Spec

 BSOD error 0x0000007f

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