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Re: [Qemu-devel] husb: out of buffers for iso stream

From: Stefan Hajnoczi
Subject: Re: [Qemu-devel] husb: out of buffers for iso stream
Date: Thu, 24 Nov 2011 11:11:53 +0000

On Thu, Nov 24, 2011 at 9:43 AM, Peter Maydell <address@hidden> wrote:
> On 23 November 2011 16:01, Gerd Hoffmann <address@hidden> wrote:
>> On 11/19/11 20:40, Stefan Hajnoczi wrote:
>>> Audacity running inside the guest freezes and does not record audio
>>> unless I move the mouse.  Somehow it seems USB iso urbs aren't being
>>> pumped unless I keep moving the mouse.  The VM is using VNC.
>> I have no idea how moving the mouse could possibly help here.
> Something went into USB suspend and the mouse can wake it
> back up but the audio source can't, maybe? (wild guess)

I guess what's special about the audio is that it uses isochronous
messages, not interrupt or bulk like many other devices.


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