Re: PR/54696 CVS commit: src/sys/external/bsd/dwc2

[Nick Hudson <nick.hudson%gmx.co.uk@localhost>]

On 05/12/2019 05:00, dhop%nwlink.com@localhost wrote:
> The following reply was made to PR port-arm/54696; it has been noted by GNATS.
>
> From: <dhop%nwlink.com@localhost>
> To: <gnats-bugs%netbsd.org@localhost>
> Cc:
> Subject: RE: PR/54696 CVS commit: src/sys/external/bsd/dwc2
> Date: Wed, 4 Dec 2019 20:58:28 -0800
>
>   David Hopper wrote:
>
>   >I don't see any bus_dma errors, but even with non-DIAGNOSTIC kernel, with
>   dwc2.c v1.64 I still get a flood of:
>   >
>   >  uaudio_chan_pintr: count(40) != size(1920)
>   >
>   >to console when playing a .wav file from sox / play using OSS; playback is
>   garbled as a result.  Let me know what information you need.
>
>   I found the errant kernel include and ran with an actual !DIAGNOSTIC config.
>   :/ I'm no longer getting the bus_dma panics, but audio is still unworkable
>   even without the uaudio_chan_pintr errors in the console (.wav files play
>   very slowly and there's a kind of fireplace crackling static in the audio
>   channel).  I suppose because that error is still happening internally.
>
>   At any rate, the scope of this bug could arguably be closed as the panic is
>   fixed, and if desired I can re-open another bug on the uaudio issues.

This is most likely a dwc2 bug. When I first ported dwc2 I'm not sure I
did much if any isoc transfer testing. I see some fixes in the upstream
driver, but not for out ISOC atm.

Nick