Solved BSOD while browsing chrome (with and without games running)

[mullz]

Hey everyone. I started experiencing BSOD today for the first time in months on my pc, and I have no idea why it's happened. So that's why I'm turning to these boards and hoping to find help with solving it

Basically what's happened is that as I browse in chrome, it sometimes triggers BSOD. It often happens when I open a new tab, and specifically when I search for "timer" in chrome. If you search for timer chrome gives you a built-in countdowner. I'm not sure if this matters, but it seems to crash specifically when searching for timer.

It crashed twice as I was in World of Warcraft, in window-mode, and searching for timer in chrome. Not sure if it's affected by any other games. Will try to research more later.
It's crashed like 10 times today, where 9 of them have been tied to using chrome, and 3-4 of them have been related to googling for timer. And one just at desktop during startup.

I've attached the zip to this post. Hoping to hear from someone that might know whats going on. The problem basically came out of the blue. lol.

 

[Arc]

The BSODs are caused by Blue Coat K9 Web Protection. Is it your Antivirus? I am not aware of it, but Avast seems to be installed there.

I would suggest you to uninstall it. See how it goes. Let us know.
__________________________________________________________

*** WARNING: Unable to verify timestamp for bckd.sys
*** ERROR: Module load completed but symbols could not be loaded for bckd.sys
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck 1000007E, {ffffffffc0000005, fffff8800c895d7b, fffff8800ca8d798, fffff8800ca8cff0}

Probably caused by : bckd.sys ( bckd+1d7b )

Followup: MachineOwner
---------

3: kd> !analyze -v
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

SYSTEM_THREAD_EXCEPTION_NOT_HANDLED_M (1000007e)
This is a very common bugcheck.  Usually the exception address pinpoints
the driver/function that caused the problem.  Always note this address
as well as the link date of the driver/image that contains this address.
Some common problems are exception code 0x80000003.  This means a hard
coded breakpoint or assertion was hit, but this system was booted
/NODEBUG.  This is not supposed to happen as developers should never have
hardcoded breakpoints in retail code, but ...
If this happens, make sure a debugger gets connected, and the
system is booted /DEBUG.  This will let us see why this breakpoint is
happening.
Arguments:
Arg1: ffffffffc0000005, The exception code that was not handled
Arg2: fffff8800c895d7b, The address that the exception occurred at
Arg3: fffff8800ca8d798, Exception Record Address
Arg4: fffff8800ca8cff0, Context Record Address

Debugging Details:
------------------


EXCEPTION_CODE: (NTSTATUS) 0xc0000005 - The instruction at 0x%p referenced memory at 0x%p. The memory could not be %s.

FAULTING_IP: 
bckd+1d7b
fffff880`0c895d7b 448a09          mov     r9b,byte ptr [rcx]

EXCEPTION_RECORD:  fffff8800ca8d798 -- (.exr 0xfffff8800ca8d798)
ExceptionAddress: fffff8800c895d7b (bckd+0x0000000000001d7b)
   ExceptionCode: c0000005 (Access violation)
  ExceptionFlags: 00000000
NumberParameters: 2
   Parameter[0]: 0000000000000000
   Parameter[1]: 0000000000000000
Attempt to read from address 0000000000000000

CONTEXT:  fffff8800ca8cff0 -- (.cxr 0xfffff8800ca8cff0;r)
rax=0000000000000000 rbx=fffff8800c8a72a0 rcx=0000000000000000
rdx=fffff8800ca8da58 rsi=0000000000000000 rdi=0000000000001000
rip=fffff8800c895d7b rsp=fffff8800ca8d9d8 rbp=fffffa801618d0a8
 r8=fffff8800ca8da60  r9=fffff80002ebd000 r10=0000000000000000
r11=fffff8800ca8d920 r12=fffffa8016bae340 r13=fffffa801618f0d8
r14=fffffa801618f260 r15=0000000000000000
iopl=0         nv up ei ng nz na pe nc
cs=0010  ss=0018  ds=002b  es=002b  fs=0053  gs=002b             efl=00010282
bckd+0x1d7b:
fffff880`0c895d7b 448a09          mov     r9b,byte ptr [rcx] ds:002b:00000000`00000000=??
Last set context:
rax=0000000000000000 rbx=fffff8800c8a72a0 rcx=0000000000000000
rdx=fffff8800ca8da58 rsi=0000000000000000 rdi=0000000000001000
rip=fffff8800c895d7b rsp=fffff8800ca8d9d8 rbp=fffffa801618d0a8
 r8=fffff8800ca8da60  r9=fffff80002ebd000 r10=0000000000000000
r11=fffff8800ca8d920 r12=fffffa8016bae340 r13=fffffa801618f0d8
r14=fffffa801618f260 r15=0000000000000000
iopl=0         nv up ei ng nz na pe nc
cs=0010  ss=0018  ds=002b  es=002b  fs=0053  gs=002b             efl=00010282
bckd+0x1d7b:
fffff880`0c895d7b 448a09          mov     r9b,byte ptr [rcx] ds:002b:00000000`00000000=??
Resetting default scope

CUSTOMER_CRASH_COUNT:  1

DEFAULT_BUCKET_ID:  NULL_DEREFERENCE

PROCESS_NAME:  System

CURRENT_IRQL:  0

ERROR_CODE: (NTSTATUS) 0xc0000005 - The instruction at 0x%p referenced memory at 0x%p. The memory could not be %s.

EXCEPTION_PARAMETER1:  0000000000000000

EXCEPTION_PARAMETER2:  0000000000000000

READ_ADDRESS: GetPointerFromAddress: unable to read from fffff800030b7100
GetUlongFromAddress: unable to read from fffff800030b71c0
 0000000000000000 Nonpaged pool

FOLLOWUP_IP: 
bckd+1d7b
fffff880`0c895d7b 448a09          mov     r9b,byte ptr [rcx]

BUGCHECK_STR:  0x7E

ANALYSIS_VERSION: 6.3.9600.17336 (debuggers(dbg).150226-1500) amd64fre

LAST_CONTROL_TRANSFER:  from fffff8800c8976db to fffff8800c895d7b

STACK_TEXT:  
fffff880`0ca8d9d8 fffff880`0c8976db : fffffa80`0f314800 fffff880`0c8a8090 00000000`00001000 fffffa80`1618f0d8 : bckd+0x1d7b
fffff880`0ca8d9e0 fffffa80`0f314800 : fffff880`0c8a8090 00000000`00001000 fffffa80`1618f0d8 fffff880`0c8ab0e0 : bckd+0x36db
fffff880`0ca8d9e8 fffff880`0c8a8090 : 00000000`00001000 fffffa80`1618f0d8 fffff880`0c8ab0e0 fffffa80`1618f260 : 0xfffffa80`0f314800
fffff880`0ca8d9f0 00000000`00001000 : fffffa80`1618f0d8 fffff880`0c8ab0e0 fffffa80`1618f260 fffffa80`1618d080 : bckd+0x14090
fffff880`0ca8d9f8 fffffa80`1618f0d8 : fffff880`0c8ab0e0 fffffa80`1618f260 fffffa80`1618d080 fffffa80`1618f260 : 0x1000
fffff880`0ca8da00 fffff880`0c8ab0e0 : fffffa80`1618f260 fffffa80`1618d080 fffffa80`1618f260 fffffa80`1618d000 : 0xfffffa80`1618f0d8
fffff880`0ca8da08 fffffa80`1618f260 : fffffa80`1618d080 fffffa80`1618f260 fffffa80`1618d000 00000000`00000001 : bckd+0x170e0
fffff880`0ca8da10 fffffa80`1618d080 : fffffa80`1618f260 fffffa80`1618d000 00000000`00000001 00000000`00001000 : 0xfffffa80`1618f260
fffff880`0ca8da18 fffffa80`1618f260 : fffffa80`1618d000 00000000`00000001 00000000`00001000 fffffa80`16bae340 : 0xfffffa80`1618d080
fffff880`0ca8da20 fffffa80`1618d000 : 00000000`00000001 00000000`00001000 fffffa80`16bae340 fffffa80`1618d0a8 : 0xfffffa80`1618f260
fffff880`0ca8da28 00000000`00000001 : 00000000`00001000 fffffa80`16bae340 fffffa80`1618d0a8 fffff880`0c89517b : 0xfffffa80`1618d000
fffff880`0ca8da30 00000000`00001000 : fffffa80`16bae340 fffffa80`1618d0a8 fffff880`0c89517b fffffa80`0f415468 : 0x1
fffff880`0ca8da38 fffffa80`16bae340 : fffffa80`1618d0a8 fffff880`0c89517b fffffa80`0f415468 fffffa80`1618d0b9 : 0x1000
fffff880`0ca8da40 fffffa80`1618d0a8 : fffff880`0c89517b fffffa80`0f415468 fffffa80`1618d0b9 00000000`00000fef : 0xfffffa80`16bae340
fffff880`0ca8da48 fffff880`0c89517b : fffffa80`0f415468 fffffa80`1618d0b9 00000000`00000fef fffff800`02ebd090 : 0xfffffa80`1618d0a8
fffff880`0ca8da50 fffffa80`0f415468 : fffffa80`1618d0b9 00000000`00000fef fffff800`02ebd090 fffffa80`1618d000 : bckd+0x117b
fffff880`0ca8da58 fffffa80`1618d0b9 : 00000000`00000fef fffff800`02ebd090 fffffa80`1618d000 fffffa80`16bae340 : 0xfffffa80`0f415468
fffff880`0ca8da60 00000000`00000fef : fffff800`02ebd090 fffffa80`1618d000 fffffa80`16bae340 00000000`0000005c : 0xfffffa80`1618d0b9
fffff880`0ca8da68 fffff800`02ebd090 : fffffa80`1618d000 fffffa80`16bae340 00000000`0000005c 00000000`00000000 : 0xfef
fffff880`0ca8da70 fffffa80`1618d000 : fffffa80`16bae340 00000000`0000005c 00000000`00000000 fffff880`0c8a1200 : nt! ?? ::FNODOBFM::`string'
fffff880`0ca8da78 fffffa80`16bae340 : 00000000`0000005c 00000000`00000000 fffff880`0c8a1200 fffffa80`0f17d001 : 0xfffffa80`1618d000
fffff880`0ca8da80 00000000`0000005c : 00000000`00000000 fffff880`0c8a1200 fffffa80`0f17d001 fffffa80`16bae340 : 0xfffffa80`16bae340
fffff880`0ca8da88 00000000`00000000 : fffff880`0c8a1200 fffffa80`0f17d001 fffffa80`16bae340 fffff880`0c89ed7a : 0x5c


SYMBOL_STACK_INDEX:  0

SYMBOL_NAME:  bckd+1d7b

FOLLOWUP_NAME:  MachineOwner

MODULE_NAME: bckd

IMAGE_NAME:  bckd.sys

DEBUG_FLR_IMAGE_TIMESTAMP:  52e29d52

STACK_COMMAND:  .cxr 0xfffff8800ca8cff0 ; kb

FAILURE_BUCKET_ID:  X64_0x7E_bckd+1d7b

BUCKET_ID:  X64_0x7E_bckd+1d7b

ANALYSIS_SOURCE:  KM

FAILURE_ID_HASH_STRING:  km:x64_0x7e_bckd+1d7b

FAILURE_ID_HASH:  {bb2078fb-e68a-81bb-931a-54936e164ef5}

Followup: MachineOwner
---------

3: kd> lmvm bckd
start             end                 module name
fffff880`0c894000 fffff880`0c8b5000   bckd     T (no symbols)           
    Loaded symbol image file: bckd.sys
    Image path: \SystemRoot\system32\drivers\bckd.sys
    Image name: bckd.sys
    Timestamp:        Fri Jan 24 22:35:22 2014 (52E29D52)
    CheckSum:         00024AE8
    ImageSize:        00021000
    Translations:     0000.04b0 0000.04e4 0409.04b0 0409.04e4

 

[mullz]

Arc, thanks a ton. Uninstalling it seems to have helped. Haven't experienced a crash since then. It's basically a program for browser that can block suspicious sites. Dont really know why I still had it since it wasnt of much use.

Gonna wait a day or two and see how it goes before i mark it as solved.