BSOD 7A while backing up database to usb stick

[DistyDevice]

Hi,

At the end of each day I make a copy of a database to usb stick. Since a few weeks Im getting BSODs at the end of backup process (WinDbg report below) every few days, however recently the problem got worse - Im getting it almost every day. After reboot the database backup is usually succesful. Backup process is the only situation when BSOD occurs, so I hope its not HDD failure - its relatively new, about 1 year old, SMART tests dont show any problems (no bad sectors as well).

WinDbg report:
BugCheck 7A, {fffff6fb80008000, ffffffffc000000e, 8bc9c880, fffff70001000000}

Probably caused by : ntkrnlmp.exe ( nt! ?? ::FNODOBFM::`string'+36c1a )

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

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

KERNEL_DATA_INPAGE_ERROR (7a)
The requested page of kernel data could not be read in. Typically caused by
a bad block in the paging file or disk controller error. Also see
KERNEL_STACK_INPAGE_ERROR.
If the error status is 0xC000000E, 0xC000009C, 0xC000009D or 0xC0000185,
it means the disk subsystem has experienced a failure.
If the error status is 0xC000009A, then it means the request failed because
a filesystem failed to make forward progress.
Arguments:
Arg1: fffff6fb80008000, lock type that was held (value 1,2,3, or PTE address)
Arg2: ffffffffc000000e, error status (normally i/o status code)
Arg3: 000000008bc9c880, current process (virtual address for lock type 3, or PTE)
Arg4: fffff70001000000, virtual address that could not be in-paged (or PTE contents if arg1 is a PTE address)

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


ERROR_CODE: (NTSTATUS) 0xc000000e - Okre

DISK_HARDWARE_ERROR: There was error with disk hardware

BUGCHECK_STR: 0x7a_c000000e

CUSTOMER_CRASH_COUNT: 1

DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT

PROCESS_NAME: sqlbrowser.exe

CURRENT_IRQL: 0

TRAP_FRAME: fffff88007520dd0 -- (.trap 0xfffff88007520dd0)
NOTE: The trap frame does not contain all registers.
Some register values may be zeroed or incorrect.
rax=fffff70001080068 rbx=0000000000000000 rcx=000000000000000b
rdx=0000000000000001 rsi=0000000000000000 rdi=0000000000000000
rip=fffff8000339f68a rsp=fffff88007520f60 rbp=000000000000000b
r8=fffff70001000000 r9=0000000000000078 r10=fffff80003206880
r11=ffffffffffffffff r12=0000000000000000 r13=0000000000000000
r14=0000000000000000 r15=0000000000000000
iopl=0 nv up ei pl nz na pe nc
nt!MiInsertVadCharges+0x10a:
fffff800`0339f68a 490fa308 bt qword ptr [r8],rcx ds:2b30:fffff700`01000000=0000000000000000
Resetting default scope

LAST_CONTROL_TRANSFER: from fffff800030fca12 to fffff80003088ec0

STACK_TEXT:
fffff880`07520ab8 fffff800`030fca12 : 00000000`0000007a fffff6fb`80008000 ffffffff`c000000e 00000000`8bc9c880 : nt!KeBugCheckEx
fffff880`07520ac0 fffff800`030b08b7 : fffffa80`04fe52b0 fffff880`07520c30 fffffa80`06c32ec8 fffffa80`04fe52b0 : nt! ?? ::FNODOBFM::`string'+0x36c1a
fffff880`07520ba0 fffff800`030971ca : 00000000`00000000 00000000`00000000 ffffffff`ffffffff 00000000`00000000 : nt!MiIssueHardFault+0x28b
fffff880`07520c70 fffff800`03086fee : 00000000`00000000 fffff700`01000000 00000000`00000000 00000000`017af000 : nt!MmAccessFault+0x146a
fffff880`07520dd0 fffff800`0339f68a : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiPageFault+0x16e
fffff880`07520f60 fffff800`033844b0 : 00000000`00000000 ffffffff`ffffffff 00000000`00000000 00000000`000007ff : nt!MiInsertVadCharges+0x10a
fffff880`07520ff0 fffff800`03088153 : ffffffff`ffffffff fffffa80`06e2b060 00000000`00000000 fffff880`075213b8 : nt!NtAllocateVirtualMemory+0x1bf0
fffff880`07521190 fffff800`03084710 : fffff800`03379e12 ffffffff`ffffffff fffff880`07521770 00000000`00000000 : nt!KiSystemServiceCopyEnd+0x13
fffff880`07521398 fffff800`03379e12 : ffffffff`ffffffff fffff880`07521770 00000000`00000000 00000000`00000000 : nt!KiServiceLinkage
fffff880`075213a0 fffff800`03088153 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!NtSetInformationProcess+0x3a1
fffff880`075216f0 fffff800`03084710 : fffff800`033796f2 00000000`00000000 fffff800`0338595f 00000000`00000000 : nt!KiSystemServiceCopyEnd+0x13
fffff880`07521888 fffff800`033796f2 : 00000000`00000000 fffff800`0338595f 00000000`00000000 fffffa80`03665a08 : nt!KiServiceLinkage
fffff880`07521890 fffff800`03378070 : 00000000`00004000 00000000`00040000 00000000`00000000 00000000`00001000 : nt!RtlCreateUserStack+0x122
fffff880`07521980 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!PspAllocateThread+0x5bb


STACK_COMMAND: kb

FOLLOWUP_IP:
nt! ?? ::FNODOBFM::`string'+36c1a
fffff800`030fca12 cc int 3

SYMBOL_STACK_INDEX: 1

SYMBOL_NAME: nt! ?? ::FNODOBFM::`string'+36c1a

FOLLOWUP_NAME: MachineOwner

MODULE_NAME: nt

IMAGE_NAME: ntkrnlmp.exe

DEBUG_FLR_IMAGE_TIMESTAMP: 54d0317d

FAILURE_BUCKET_ID: X64_0x7a_c000000e_nt!_??_::FNODOBFM::_string_+36c1a

BUCKET_ID: X64_0x7a_c000000e_nt!_??_::FNODOBFM::_string_+36c1a

Followup: MachineOwner

 

[johnbl]

Error code: (NTSTATUS) 0xc000000e (3221225486) - A device which does not exist was specified.

-default drive letters can get re assigned when you plug in another drive that has primary partition on it

you might, update your BIOS to get any bug fixes for your USB ports, update the device drivers for your CPU chipset to get updated usb 2.x drivers and update any device drivers for your usb 3.0 chipset that may be on your motherboard (get it from your motherboard vendor)

- you also might want to do a full format on your USB device (not a quick format) USB devices have a high error rate, That in conjunction with outdated drivers may "confuse" the USB driver and cause a copy failure.
if you do a full format, the filesystem will mark any clusters that return read/write errors on your USB driver as bad. This will reduce the error rate for the device.

to prevent problems where your drive letters get reassigned, I would not make your USB drive with a primary bootable partition.