Hi,
I have a KS Filter driver which exposes a video capture pin and a video render pin.
Driver passes all WHQL tests.
But when I connect the capture pin to the render pin the driver crashes after a couple of minutes.
If I have driver verifier installed this is what I see after a few minutes:
======================================================================
BugCheck D1, {a2bf5000, 2, 1, f9954d16}
Probably caused by : STREAM.SYS ( STREAM!StreamClassDmaCallback+56 )
Followup: MachineOwner
nt!RtlpBreakWithStatusInstruction:
80515aa4 cc int 3
kd> !analyze -v
*******************************************************************************
* *
* Bugcheck Analysis *
* *
*******************************************************************************
DRIVER_IRQL_NOT_LESS_OR_EQUAL (d1)
An attempt was made to access a pageable (or completely invalid) address at an
interrupt request level (IRQL) that is too high. This is usually
caused by drivers using improper addresses.
If kernel debugger is available get stack backtrace.
Arguments:
Arg1: a2bf5000, memory referenced
Arg2: 00000002, IRQL
Arg3: 00000001, value 0 = read operation, 1 = write operation
Arg4: f9954d16, address which referenced memory
Debugging Details:
WRITE_ADDRESS: a2bf5000 Special pool
CURRENT_IRQL: 2
FAULTING_IP:
STREAM!StreamClassDmaCallback+56
f9954d16 8908 mov [eax],ecx
DEFAULT_BUCKET_ID: DRIVER_FAULT
BUGCHECK_STR: 0xD1
LAST_CONTROL_TRANSFER: from 8062d1a4 to f9954d16
TRAP_FRAME: f9c3fa3c -- (.trap fffffffff9c3fa3c)
ErrCode = 00000002
eax=a2bf5000 ebx=a2bf4ff8 ecx=00057c08 edx=00000000 esi=a2bf4a50 edi=810df558
eip=f9954d16 esp=f9c3fab0 ebp=f9c3fad4 iopl=0 nv up ei pl nz na pe nc
cs=0008 ss=0010 ds=0023 es=0023 fs=0030 gs=0000 efl=00010202
STREAM!StreamClassDmaCallback+0x56:
f9954d16 8908 mov [eax],ecx
Resetting default scope
STACK_TEXT:
f9c3fad4 8062d1a4 81468768 00000000 deadf00d STREAM!StreamClassDmaCallback+0x56
f9c3faf8 806a039e 81468768 00000000 00000000 nt!VfAdapterCallback+0x4e
f9c3fb24 804e5bfa 814803d8 8146879c 00000051 hal!HalAllocateAdapterChannel+0x124
f9c3fb3c 8062d831 814803d8 81468768 00000051 nt!IoAllocateAdapterChannel+0x28
f9c3fb68 f9954fd0 814803d8 81468768 00000051 nt!VfAllocateAdapterChannel+0x9f
f9c3fb88 f99554c7 81468768 a2bf4a50 9c69ae00 STREAM!SCSetUpForDMA+0x28
f9c3fba8 f9959364 00468820 9c69ae00 a2bf4a50 STREAM!SCIssueRequestToDevice+0x9f
f9c3fbe8 f995c03d 81468820 9b816f90 00000001 STREAM!SCProcessDataTransfer+0x1cc
f9c3fc30 f9537a95 81468768 a3f80f00 f9c3fc64 STREAM!StreamDispatchIoControl+0xab
f9c3fc40 f9955859 81468768 a3f80f00 81468768 ks!KsDispatchIrp+0xa3
f9c3fc64 804e6185 81468768 a3f80f00 8069d454 STREAM!StreamClassPassThroughIrp+0xef
f9c3fc74 80624d10 a3f80fd4 a3f80ff8 8147b2f0 nt!IopfCallDriver+0x31
f9c3fc98 8062eee5 8147b238 81373040 80510e00 nt!IovCallDriver+0x9e
f9c3fca8 804e6185 8147b238 a3f80f00 8069d454 nt!ViDriverDispatchGeneric+0x27
f9c3fcb8 80624d10 814005a8 a3f80f00 80510e38 nt!IopfCallDriver+0x31
f9c3fcdc f9533006 9c80afb0 9b816f58 00000000 nt!IovCallDriver+0x9e
f9c3fcf0 f9957b99 8147b238 9b816f68 00000000 ks!KsStreamIo+0x160
f9c3fd50 f9957c11 9c80ae00 00000000 f9534ac0 STREAM!IoWorker+0x135
f9c3fd5c f9534ac0 9c80ae00 81080f78 80541000 STREAM!IoWorkerRead+0xb
f9c3fd74 8052089e 81080f78 00000000 81560020 ks!WorkerThread+0x1e
f9c3fdac 805a2ec8 81080f78 00000000 00000000 nt!ExpWorkerThread+0xfe
f9c3fddc 8052c6a2 805207a0 00000000 00000000 nt!PspSystemThreadStartup+0x34
00000000 00000000 00000000 00000000 00000000 nt!KiThreadStartup+0x16
In my driver I have turned off synchronization. Besides this problem there are no other issues and everything works.
This problem occurs both when I connect capture to render on the same instance of the filter, or if I create two instances of the same filter in GraphEdt.
Is there a problem in my code or is having render and capture pin on same filter not supported in non AVStream model?
Thank you for your help