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  1. #1

    Random BSODs - Windows 7 x86

    Hi,

    I'm getting random BSODs and I have no clue why!!
    Attached is the needed zip files.

    Thanks.

    OS - Windows 7 Ultimate SP1
    x86 (32-bit)
    What was original installed OS on system? Windows XP
    Retail version
    Age of system (hardware) around 4-5 years old
    Age of OS installation - have you re-installed the OS? 2 years - No

    CPU: Intel Core 2 Duo
    Video Card: Nvidia GeForce 8500GT
    MotherBoard - Intel (not sure which model)
    Power Supply - S-TEK 400W

    System Manufacturer: Acer
    Exact model number: Veriton M460

    Desktop
    Attached Files Attached Files


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  2. #2

    re: Random BSODs - Windows 7 x64

    After running Driver Verifier i got BSOD, attached is the minidump file
    Attached Files Attached Files

  3. #3

    re: Random BSODs - Windows 7 x64

    Code:
    0: kd> .bugcheck
    Bugcheck code 000000C4
    Arguments 000000f6 0000012c a86b3558 93dfc849
    Code:
    0: kd> k
    ChildEBP RetAddr  
    a989366c 83148f03 nt!KeBugCheckEx+0x1e
    a989368c 8314d766 nt!VerifierBugCheckIfAppropriate+0x30
    a9893720 8303426b nt!VfCheckUserHandle+0x14f
    a9893750 83034125 nt!ObReferenceObjectByHandleWithTag+0x13b
    a9893774 83156836 nt!ObReferenceObjectByHandle+0x21
    a989379c 93dfc849 nt!VerifierObReferenceObjectByHandle+0x21
    a9893bdc 831436c3 Lachesis+0x849
    a9893c00 82e47bc5 nt!IovCallDriver+0x258
    a9893c14 8303cca5 nt!IofCallDriver+0x1b
    a9893c34 8303fe8e nt!IopSynchronousServiceTail+0x1f8
    a9893cd0 830868cb nt!IopXxxControlFile+0x6aa
    a9893d04 82e4e896 nt!NtDeviceIoControlFile+0x2a
    a9893d04 770670f4 nt!KiSystemServicePostCall
    0012ebcc 00000000 0x770670f4
    Your Razer Lachesis drivers are incorrectly referencing a handle that is user-mode as kernel-mode, therefore verifier threw the bug check.

    Code:
    0: kd> lmvm Lachesis
    start    end        module name
    93dfc000 93dfef00   Lachesis   (no symbols)           
        Loaded symbol image file: Lachesis.sys
        Image path: \SystemRoot\system32\drivers\Lachesis.sys
        Image name: Lachesis.sys
        Timestamp:        Mon Sep 28 06:20:38 2009
    Razer has never been one to be known for their outstanding drivers, but for once this is just a matter of you needing to update the driver in general. 2009? That's pre-Synapse as far as I know, which is what you want nowadays with Razer devices for their drivers. Synapse is garbage, but you at least won't blue screen : )

  4. #4

    re: Random BSODs - Windows 7 x64

    Oh ok. Didn't know Razer suck that much lol.
    I'll update the driver and try again.

  5. #5

    re: Random BSODs - Windows 7 x64

    According to this list my Razer Lachesis isn't supported by Razer Synapse 2
    Razer Synapse 2.0 (PC) - Cloud-based configurator and manager for Razer devices

  6. #6

    re: Random BSODs - Windows 7 x64

    Oh ok. Didn't know Razer suck that much lol.
    Razer makes decent hardware, but their drivers on the other hand..

    Also I am fairly elitist when it comes to software development regarding hardware. I've seen a lot of "interesting" stuff from Razer's drivers.

    According to this list my Razer Lachesis isn't supported by Razer Synapse 2
    : (

    Is there any way to update the driver standalone?

  7. #7

    re: Random BSODs - Windows 7 x64

    This is the driver i'm using now, which is the latest on Razer website
    Razer Lachesis Windows 7 Driver v1.10 (English)

  8. #8

    re: Random BSODs - Windows 7 x64

    Looks like it was modified in 2011. Does now = updated the 2009 one, or now = the one I saw in the dump?

  9. #9

    re: Random BSODs - Windows 7 x64

    The one you saw in the dump

  10. #10

    re: Random BSODs - Windows 7 x64

    Well, if there's no update the only thing you can do to stop the crashes is:

    1. Don't use the mouse, use something else.

    2. If you like the mouse, remove the Razer drivers + unplug it and shut down. On startup, plug it back in and Windows will install the generic mouse drivers. The mouse will work fine but you won't have any Razer control panel features, etc. AFAIK as I had a Lachesis years ago, you could change the DPI on it right from the buttons at the top so it's fine without the Razer drivers.

  11. #11

    Re: Random BSODs - Windows 7 x64

    So I did option 2, and Windows installed a Lachesis mouse driver dated 2007. I tried the Driver Verifier and this time no BSOD :)
    But i have a question, how do i know Driver Verifier is running?

    PS: i think you need to change the thread title cuz i'm using Win 7 32bit not 64.

  12. #12

    Re: Random BSODs - Windows 7 x64

    But i have a question, how do i know Driver Verifier is running?
    Elevated CMD (admin) and type verifier /query

    If a bunch of stuff flashes and then CMD closes, it's enabled.

    PS: i think you need to change the thread title cuz i'm using Win 7 32bit not 64.
    Changed.

  13. #13

    Re: Random BSODs - Windows 7 x86

    I think everything is ok now. Thanks for the help :)

  14. #14

    Re: Random BSODs - Windows 7 x86

    Glad to hear.

  15. #15

    Re: Random BSODs - Windows 7 x86

    Oh no i got a fresh BSOD
    I left Driver Verifier running through the night and when i woke up the BSOD was there.
    Attached is the mini dump.

    I wonder if it's still the mouse??
    Attached Files Attached Files

  16. #16

    Re: Random BSODs - Windows 7 x86

    I know what it is, but I can't explain/show it with a minidump. Can you get me the kernel-dump for that crash, please? C:\Windows and it's called MEMORY.DMP. Upload it anywhere like Onedrive, and then paste the link here.

  17. #17

    Re: Random BSODs - Windows 7 x86

    Can't find MEMORY.DMP

  18. #18

    Re: Random BSODs - Windows 7 x86

    Is it not in C:\Windows ?

  19. #19

    Re: Random BSODs - Windows 7 x86

    Nope. I did a search also with *.DMP but got nothing named MEMORY.DMP

  20. #20

    Re: Random BSODs - Windows 7 x86

    Your system is likely currently only set to generate small memory dumps.

    Oh well, I can still analyze it, just not explain it as much as I'd like to.

    Code:
    1: kd> .bugcheck
    Bugcheck code 000000C4
    Arguments 00000062 878f6244 87897150 00000006 // 6 allocations
    Code:
    1: kd> knL
     # ChildEBP RetAddr  
    00 ab8e88c0 8314ef03 nt!KeBugCheckEx+0x1e
    01 ab8e88e0 831535eb nt!VerifierBugCheckIfAppropriate+0x30
    02 ab8e88f0 82e264ca nt!VfPoolCheckForLeaks+0x33
    03 ab8e892c 82fb6f5a nt!VfTargetDriversRemove+0x66
    04 ab8e8940 82fc49d4 nt!VfDriverUnloadImage+0x5e
    05 ab8e8978 82fc475b nt!MiUnloadSystemImage+0x231
    06 ab8e899c 830d2a1d nt!MmUnloadSystemImage+0x36
    07 ab8e89b4 8303a881 nt!IopDeleteDriver+0x38
    08 ab8e89cc 82e8f320 nt!ObpRemoveObjectRoutine+0x59
    09 ab8e89e0 82e8f290 nt!ObfDereferenceObjectWithTag+0x88
    0a ab8e89e8 830d30e9 nt!ObfDereferenceObject+0xd
    0b ab8e8b3c 830d2d3a nt!IopUnloadDriver+0x3a0
    0c ab8e8b48 82e54896 nt!NtUnloadDriver+0xf
    0d ab8e8b48 82e53ba1 nt!KiSystemServicePostCall
    0e ab8e8bc4 830d2e39 nt!ZwUnloadDriver+0x11
    0f ab8e8d1c 830d2d3a nt!IopUnloadDriver+0xf0
    10 ab8e8d28 82e54896 nt!NtUnloadDriver+0xf
    11 ab8e8d28 77c370f4 nt!KiSystemServicePostCall
    12 003cf1b4 00000000 0x77c370f4
    Code:
    0xc4_62_VRF_LEAKED_POOL_IMAGE_MBAMSwissArmy.sys
    Malwarebytes' anti-malware driver didn't free six pool allocations before unloading itself, causing a leak and therefore verifier threw the bug check.

    Uninstall Malwarebytes.

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