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Date: Mon, 14 May 2018 10:05:51 +0200
From: Gerd Hoffmann <kraxel@redhat.com>
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Subject: Re: [Qemu-devel] [PATCH 4/4] audio/hda: detect output buffer
 overruns and underruns
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To: KONRAD Frederic <frederic.konrad@adacore.com>
Cc: qemu-devel@nongnu.org, martin@schrodt.org

On Fri, May 11, 2018 at 11:25:37AM +0200, KONRAD Frederic wrote:
> 
> 
> On 04/25/2018 03:05 PM, Gerd Hoffmann wrote:
> > On Mon, Apr 23, 2018 at 11:31:34AM +0200, KONRAD Frederic wrote:
> > > 
> > > 
> > > On 04/19/2018 03:10 PM, Gerd Hoffmann wrote:
> > > > If some event caused some larger playback hickup the fine-grained timer
> > > > adjust isn't able to recover.  Use a buffer overruns and underruns as
> > > > indicator for that.  Reset timer adjust logic in case we detected one.
> > > 
> > > It seems that this patch causes big lockup of my Win10 KVM guest
> > > when it tries to output a sound.
> > > The three previous patches improved considerably the audio
> > > output though!
> > 
> > Can you try drop the "underrun" chunks, keeping only the "overrun"?
> > 
> > thanks,
> >    Gerd
> > 
> 
> Hi Gerd,
> 
> Tested yesterday it seems that both are causing lockup. The
> overrun a little less though.

Hints how to reproduce this?  Which guest?  Which application?

thanks,
  Gerd