Marvell Yukon (msk) network card causes the "sticky mouse" problem: mouse stops for extended periods of time

[YongHyeon PYUN]

On Fri, May 13, 2016 at 02:17:09AM -0700, Yuri wrote:
> On 05/11/2016 22:58, YongHyeon PYUN wrote:
> >hw.msk.msi_disable is a loader tunable so you can't check it with
> >sysctl(8).  Add the tunable to boot/loader.conf to take it effect.
> >See loader.conf(5) for more information.
> 
> 
> Adding hw.msk.msi_disable="1" reduced the mouse problem, but Marvell 

Do you see msk(4) interrupt handler consumes lots of CPU cycles?
I can't explain why non-MSI case mitigates mouse issue.

> Yukon card still didn't function properly. Speed test showed much slower 
> result. And mouse still doesn't move as freely as usual. Something isn't 

Check H/W MAC counters with sysctl(8) and see whether there are
errors(sysctl dev.msk.0.stats).  If there is no error I'm not sure
what's going on there.
Could you try other OS(i.e. Linux USB stick) and see whether it
works as expected?

> right with it.
> 
> Yuri
> 
>