[wdmaudiodev] 答复: Re: USB 3.0 issue when un-plug audio device
- From: Moore Zhang <chinahearing@xxxxxxxxx>
- To: <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Thu, 28 Jun 2012 20:59:01 +0800
Sam, you don't want to know the BSOD and hang stack, because the crash is not
important. My issue is that when I un-plug device, there's no PnP and Power
event. So that I don't have chance to process surprise remove and pnp stop
events.
The BSOD/crash is not important. There are different symptoms with different
bug check code, and the root cause is that the real device has been removed,
but audio stream is still working. Yes, it's really hang in USB3 stack which is
processing the audio stream.
-----邮件原件-----
发件人: wdmaudiodev-bounce@xxxxxxxxxxxxx [mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx]
代表 Sam Tertzakian
发送时间: June 28, 2012 08:24
收件人: wdmaudiodev@xxxxxxxxxxxxx
主题: [wdmaudiodev] Re: USB 3.0 issue when un-plug audio device
You need to, at the minimum, send us the output of "!analyze -v" with full
symbol information.
The question is:
Is it crashing in your driver or the USB3 stack? We need to know that first.
-----Original Message-----
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Moore Zhang
Sent: Wednesday, June 27, 2012 5:16 PM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Re: USB 3.0 issue when un-plug audio device
Intel's USB3 controller, device ID is VID_8086&HID_1E31. Both controller and
hub drivers are latest from Intel.
----- -----
Title: [wdmaudiodev] Re: USB 3.0 issue when un-plug audio device
Hi,
What USB3 Host Controller are you using?
-----Original Message-----
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Moore Zhang
Sent: Wednesday, June 27, 2012 5:54 AM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] USB 3.0 issue when un-plug audio device
Hi Guys:
Some days ago, I test my usb audio driver in USB3.0 and BSOD occurs when I
un-plug device while it's still playing back. I attach windbg and set
breakpoint in all PnP and Power events. Very strange, when issue happens, none
of these events are hit until I stop music playing back. My audio driver is
written with AVStream framework.
0: kd> !drvobj myAudioDriver 0xf
Driver object (86642030) is for:
\Driver\ myAudioDriver
Driver Extension List: (id , addr)
(aea6de96 87b47338)
Device Object list:
86731b20
[16] IRP_MJ_POWER aea70cbc
ks!CKsDevice::DispatchPower
[1b] IRP_MJ_PNP aea6926e
ks!CKsDevice::DispatchPnp
So I set bp in ks!CKsDevice::DispatchPower and ks!CKsDevice::DispatchPnp. Then
reproduce this issue. Strange, both breakpoints in ks!CKsDevice::DispatchPnp
and DispatchPower are not hit until I stop music playback. Sometimes I have
chance to stop playing, and sometimes there is bug check hang.
This issue never happens in USB1.1 and 2.0 port. Is this a known issue, anyone
ever met the similar issue? Any idea is appreciated!
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