Re: Funded project(s) to improve Linux emulation

[nia <nia%NetBSD.org@localhost>]

On Thu, Nov 12, 2020 at 11:02:34AM +0000, Stephen Borrill wrote:
> On Tue, 10 Nov 2020, nia wrote:
> > On Tue, Nov 10, 2020 at 06:36:06PM +0100, Martin Husemann wrote:
> > >  - Improve linux audio support
> > 
> > Does anyone know what's needed yet?
> 
> What springs to mind is that when running the existing net/citrix_ica
> package (or any update of it that will run under current levels of Linux
> emulation), it negotiates a very low bit (8k) rate even when told to use the
> best it can. I assume that it is relying on undefined behaviour from some of
> the ioctls it is using. For instance, when you perform mixer operations from
> within a remote desktop sessoin it does them on the audio devices, not
> mixer. This used to return an error which then killed audio for the
> remainder of the session. Many years ago, I made it so that mixer operations
> would fall though and complete successfully (can't find the commit now).
> 
> So probably just requires tracing the syscalls and seeing what is requested
> and returned.
> 
> -- 
> Stephen
> 

Thanks. Sounds pretty similar to some problems I observed in native
libossaudio applications in the past.