[PSO][WIN]DRIVER_UNLOADED_WITHOUT_CANCELLING_PENDING_OPERATIONS

[ionut balosin]

Salut,

  am si eu o problema la care nu prea am reusit sa ii dau de cap. 

  a. Daca comentez doar test_syscall("NtReadFile") din test.c si rulez testul lucrurile sunt ok, passed peste tot.
  b. Daca comentez doar system("driver unload sci") din test.c si rulez testul
din nou passed peste tot 
  c. Daca totul este decomentat si rulez tot testul imi apare blue screen si mesajul pe care il obtin cu WinDbg, insa nu am inteles nimik din el:

DRIVER_UNLOADED_WITHOUT_CANCELLING_PENDING_OPERATIONS (ce)
A driver unloaded without cancelling timers, DPCs, worker threads, etc.
The broken driver's name is displayed on the screen.
Arguments:
Arg1: f8b58081, memory referenced
Arg2: 00000008, value 0 = read operation, 1 = write operation
Arg3: f8b58081, If non-zero, the instruction address which referenced the bad memory
    address.
Arg4: 00000000, Mm internal code.

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

WRITE_ADDRESS:  f8b58081 

FAULTING_IP: 
sci+1081
f8b58081 ??              ???

DEFAULT_BUCKET_ID:  DRIVER_FAULT

BUGCHECK_STR:  0xCE

PROCESS_NAME:  sshd.exe

CURRENT_IRQL:  1

TRAP_FRAME:  f8bc2c90 -- (.trap fffffffff8bc2c90)
ErrCode = 00000010
eax=00000000 ebx=f8b58010 ecx=808e994a edx=00000000 esi=f8bc2d64 edi=f8bc2d04
eip=f8b58081 esp=f8bc2d04 ebp=f8bc2d38 iopl=0         nv up ei pl nz na po cy
cs=0008  ss=0010  ds=0023  es=0023  fs=0030  gs=0000             efl=00010203
<Unloaded_sci.sys>+0x1081:
f8b58081 ??              ???
Resetting default scope

IP_MODULE_UNLOADED: 
sci+1081
f8b58081 ??              ???

LAST_CONTROL_TRANSFER:  from 8085a01b to 80826659

STACK_TEXT:  
f8bc2c04 8085a01b 00000050 f8b58081 00000008 nt!KeBugCheckEx+0x1b
f8bc2c78 80885ed0 00000008 f8b58081 00000000 nt!MmAccessFault+0xa91
f8bc2c78 f8b58081 00000008 f8b58081 00000000 nt!KiTrap0E+0xd8
WARNING: Frame IP not in any known module. Following frames may be wrong.
f8bc2d00 f8bc2d64 0065cc2c 00000000 000000bf <Unloaded_sci.sys>+0x1081
f8bc2d38 80882fa8 000006ec 00000000 00000000 0xf8bc2d64
f8bc2d38 7c82ed54 000006ec 00000000 00000000 nt!KiFastCallEntry+0xf8
0065cc68 00000000 00000000 00000000 00000000 0x7c82ed54

STACK_COMMAND:  kb

FOLLOWUP_IP: 
sci+1081
f8b58081 ??              ???

SYMBOL_STACK_INDEX:  3
FOLLOWUP_NAME:  MachineOwner
SYMBOL_NAME:  sci+1081
MODULE_NAME: sci
IMAGE_NAME:  sci.sys
DEBUG_FLR_IMAGE_TIMESTAMP:  0
FAILURE_BUCKET_ID:  0xCE_W_sci+1081
BUCKET_ID:  0xCE_W_sci+1081

Followup: MachineOwner

Poate cineva sa imi spuna care este problema la acel NtReadFile sau cum sa fac un Debug mai amanuntit?

 
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