That should work, but I am just seeing a very small context of what you
are doing.
D
-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Abhijit
Sent: Friday, October 08, 2004 4:33 AM
To: Windows System Software Devs Interest List
Subject: Re:[ntdev] SPECIAL_POOL_DETECTED_MEMORY_CORRUPTION
Doron,
You are right :-). I was calling IoMarkIrpPending from the CR.
I have deleted the code and now I am returning
STATUS_MORE_PROCESSING_REQUIRED from CR. The code is working without any
bugcheck.
The new code structure looks like:
WorkItemRoutine()
{
KeInitializeEvent ( &CompletionEvent , SynchronizationEvent , FALSE ) ;
irp = IoBuildDeviceIoControlRequest ( … &CompletionEvent … )
IoSetCompletionRoutine ( irp , IrpCR ) ;
status = IoCallDriver ( … , irp ) ;
if ( status == STATUS_PENDING )
{
KeWaitForSingleObject ( &CompletionEvent ,
Executive , KernelMode ,FALSE , NULL ) ;
}
IoCompleteRequest ( irp , IO_NO_INCREMENT );
}
IrpCR (…,irp,…)
{
status = irp->IoStatus.Status ;
:
// Some processing related to the IRP here
:
return STATUS_MORE_PROCESSING_REQUIRED ;
}
I haven’t encountered any bug till now. But “will this code work always”
?
Abhijit.
“Doron Holan” wrote in message
news:xxxxx@ntdev…
Are you calling IoMarkIrpPending in the completion routine? For irps
you
allocated yourself, you cannot do this b/c when the irp completes there
is
no current irp stack location and IoMarkIrpPending manipulates the
current
stack location.
d
Subject: [ntdev] SPECIAL_POOL_DETECTED_MEMORY_CORRUPTION
From a Work Item Routine in the driver I am sending an IRP created using
IoBuildDeviceIoControlRequest to the lower driver.
I have even set an IoCompletion Routine.
But when the call to the IoCallDriver returns the system bugchecks with
SPECIAL_POOL_DETECTED_MEMORY_CORRUPTION.
Param 1: (Address that the driver tried to free Address) points to the
IRP
which was sent down.
Param 4: 0x24 (A driver freed an address when bytes after end of
allocation
have been overwritten.)
But if I don’t set the Completion Routine, then the bug check doesn’t
occurs.
Driver Verifier - I/O verification is set to level 2.
Where am I going wrong ?
Abhijit.
—
Questions? First check the Kernel Driver FAQ at
http://www.osronline.com/article.cfm?id=256
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