[wdmaudiodev] Re: BSOD issue for portcls.sys
- From: "Jeff Pages" <jeff@xxxxxxxxxxxxxxxx>
- To: <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Tue, 6 Nov 2007 08:41:55 +1100
I don't know if this helps, but in my own case I got caught by calls to
FreeAudioBuffer while the stream was still in a running state - from memory I
think this happens if the application is abruptly closed (Ctrl-C in the case of
a command line app). I added a call to stop my DMA hardware before processing
FreeAudioBuffer and that fixed it.
Jeff
----- Original Message -----
From: Lionberger, Brad
To: wdmaudiodev@xxxxxxxxxxxxx
Sent: Tuesday, November 06, 2007 7:03 AM
Subject: [wdmaudiodev] BSOD issue for portcls.sys
Hi all,
I am seeing a BSOD issue where audiodg.exe calls my Close handler, I forward
the IRP to the port class as it is an IRP I don't handle, the
portcls!DispatchClose then calls portcls!CPortPinWaveRT::Close+0x87 which
causes a BSOD.
The BSOD occurs with a paused active stream on the device during sleep stress
tests. Any thoughts on what my audio driver is not doing/should be doing?
Thanks in advance.
Brad
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